Bunker Hill Golf Cs Ar Analysis
Golf Course Architectural Analysis
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Bunker Hill Golf Course
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2200 Bunker Hill Road
Dubuque, Iowa 52001
(563) 589-4261
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122 North 2nd Sb-eet
River FaIls, W1 54022
Ph: (715) 425-9511
Fax: (715) 425-2962
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Master Plan Report
Bunker Hill Golf Course
Dubuque, Iowa
Prepared by:
Jon Scbmenk
Gill Miller Inc.
122 North 2nd Street
River Falls, WI 54022
Date: October 20, 2003
Background:
Gill Miller, Inc. has bèen retained by the City of Dubuque, Iowa to complete a master plan of
their municipal golf COufS\) as a means to provide guidance and reco=endations to the City's
Leisure Services Department, support staff and members on course improvements that will
remedy deficient agronomic and design conditions, improve playability and golfer enjoyment,
improve turf quality, and decrease maintenance costs.
Garrett Gill, Gill Miller, Inc. visited the course in January 2003 and met with Leisure Services
Department Manager, Gil Spence, to discus the project's goals and objectives. Once selected as
the golf course architect to assist the City in their master plauning effort, detailed site studies
were then conducted by both Garrett Gill and Paul Miller. In addition to onsite studies a
questionnaire addressing issues related to the golf facility was prepared. Approximately 20 users
of the facility responded to the questionnaire providing valuable insight to the project. The
following are some of the findings:
A majority of the respondents felt:
. it is important to increase overall length of the course
. the course is less challenging than other courses they play
. the course provides equal enjoyment to other courses they play
. the course offers a fair/average deal compared to other courses they play
. the location, old trees and general maintenance are the strongest features of the facility
. the short length, small tees and poor quality of the greens are the weakest features
ofthe facility
. the most frequent compliment of the users are the views
. the most frequent criticism of the users are about the tees and the greens
. their favorite holes are 5 and 11
. their least favorite holes are 6, 7 or 15
These results along with the objectives put forth by the City (found on pages 2 & 3) provided
guidance and direction to the master planning efforts.
Master Plan Report
Bunlœr Hili Golf Course. Dubuque. Iowa
History:
The original layout of the Bunker Hill
Golf Course dates back to the early
20th Century where it was built as a
private course for the L. B. Estabrooks
family. In 1928 the course was
expanded to 18 holes and opened to the
public as shown in this Telegraph-
Herald and Times Journal newspaper
article from Friday, June 29th. The
course was eventually sold to a private
flTlll in 1941. In 1951, the Wahlert
Foundation along with the local
Chamber of Co=erce bought the golf
course for $125,000 and donated it to the City of Dubuque. Between 1958 and 1962 the course
was redesigned to it's current layout by the then resident PGA Golf Professional Gordon
Cunningham. Only minimal changes have been made since. Mr. Cuuningham had been
responsible for many golf course designs throughout the midwest and formerly served as part
owner of Midwest Irrigation located in East Dubuque, lllinois.
Today the course continues to be owned and operated by the City of Dubuque. The current
PGA Golf Professional is George Stephenson and the Certified Golf Course Superintendent is
Bill Burke.
Planning:
Based on meetings with Bill Burke, Golf Course Superintendent, and Gil Spence, the Manager of
the Leisure Services Department, as well as our own onsite observations, the following issues
were to be addressed in the Master Plan:
- evaluate drainage improvements, most importantly on holes 3,10, 17 & 18
- review on course conflicts in golfer circulation patterns between 10 green and II tees, and
off course conflicts with play on holes 12 and 13 with Grandview Avenue
- analyze shading andrelated turfissues, most notably on holes 4, 6, 12, 13 & 14 1
- address poor green performance (puttable area, green size and slope) on holes 7 & 12
- evaluate upgrading the irrigation system 2
- evaluate overall improvement and upgrading the turf quality and issues dealing with poa
annua 1
- review cart path locations and entrance and exit points from greens - make
recommendations for new cart path placement
- evaluate practice green expansion alternatives - expand teeing surface, consider target
greens and practice bunkers
- evaluate sequencing of holes and the speed ofplay
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Master Plan Report
Bunker Hill GalfCourse. Dubuque, Iowa
- improve tee complexes by increasing size and optimizing location and variety in yardage to
accommodate broader market segment
- evaluate means to add length to course
- evaluate means to negotiate steep slope areas
- review bunker shapes and locations - suggest new locations to enhance strategic play
- evaluate and propose tree groupings to better define play strategy
- address safety and screening between congested play areas
- address implementation of the proposed improvements
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1 for irrigation evaluation refer to the attached report prepared by Erik Christiansen Design Group,
LTD.
2 for turf improvement recommendations refer to the attached turf advisory service report prepared
by Paul Vermeulen of the USGA Green Section
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Site Summary:
The course presently plays as follows:
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Blue:
¥ihite:
B/W par
Red:
Red par
Front Nine
2,851 yds
2,676 yds
35
2,345 yds
35
Back Nine
2,465 yds
2,288 yds
34
1,973 yds
35
Total
5,316yds
4.964 yds
69
4,318 yds
69
Using today's standards, Bunker Hill Golf Course is considered a short course, Issues
contributing to the short length include the overall size of the property, hills terrain and minimal
usable acreage to route the golf course and place the features (greens, tees and fairways). The
space does not exist to expand the course to championship length, however, any increase in
length and par will help in the marketing of the course to outside play.
The CUlTent irrigation system is old, inefficient and inadequate to meet the requirements of
today's golf courses. A report provided by EC Design Group analyzes the current state of the
system as well as recommendations for improving it. Overall the irrigation system pump station
is undersized, the golf course piping is iruldequate to meet current demands and the control
system is outdated and needs to be replaced.
Conditions of the turf in the fairways, greens and tees are also an area of concern. The once
bluegrass fairways have been invaded by a substantial population of poa annua. Poa annua can
withstand lower mowing heights common in the fuirway whereas the bluegrass prefers higher
cuts. However, the negative side to establishing significant stands of poa annua is the likelihood
that the poa will die off under prolonged periods of heat stress or cold open winters.
Gill Miller, Inc
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Master Plan Report
Bunker Hill GoifCourse, Dubuque, Iowa
Maintaining poa under hot conditions
requires an excessive amount of irrigation to
keep the soil moist and cool and keeping it
viable throughout a cold open winter is not
practical. Generally the poa will establish
itself through seed laying dormant in the
gromid. In his report, Mr. Paul Vermeulen
of the USGA Green Section further expands
on the problems with the current fairways
and offers 3 choices for improving the
turfgrass when the City proceeds with the
renovation project. He describes the pros
and cons of reseeding the fairways with:
1) Pereunial Ryegrass mixed with Kentucky Bluegrass 2) Kentucky Bluegrass
3) Creeping Bentgrass. The concensus of the Master Plan Committee was option 1.
Most of the existing greens are small push-up
greens having been constructed out of material
native to the site. In some circumstances they
are severely sloped limiting areas to place a
pin. Many of the greens are in a poor
agronomic state as a result of excess shade,
poor soil conditions and the lack of air
circulation. It is reco=ended that all the
greens be rebuilt to USGA construction
standards to maintain consistency and increase
sizes to acco=odate play requirements.
Developing a true mnltiple tee system provides a golf course that plays equitably for players of
all skill levels. A four tee system allows for a regular and championship set of tees for both men
and women. The current tees are small and require the course to close them in the fall to allow
them to recover. Enlarging the existing tees along with the addition of new tees would increase
the flexibility in placement of the tee markers thus not requiring any non-usable tees in the fall.
Hole 1:
A
B
C
D
E
F
G
Hole2:
A
B
C
D
E
F
G
Hole3:
A
B
C
D
E
F
G
Hole4
A
B
C
D
Hole5
A
B
.C
D
E
F
G
Master Plan Report
Bunker Hill Golf Course. Dubuque. Iowa
To implement the previously mentioned objectives, many conceptual improvement plans were
prepared, reviewed and modified at different meetings throughout the summer of 2003, resulting
in the current Master Improvement Plan. To better explain the improvements necessary, this
report contains a hole by hole analysis as well as an overall improvement plan. The following is
a summary of improvements. A graphic representation of these suggested improvements can be
found in the Appendix of this report.
Shift tees and cart path south away ITom 10 tees
Mound and plant between tees
Add plantings between tees and 3 fairway
Contour the fairway
Mound and plant between holes 1 and 10
and add plantings between holes 1 and 2
Naturalize area right of the hole
Relocate green adding 40 yards to fue hole
Create new back tee and rebnild / relocate
existing tees and cart path
Add plantings between tees and 1 green
Regrade fairway to soften severe side slope and
redirect the hole to create a dogleg to the right
Add new fairway bunkers
Relocate green up the hill
Naturalize out-of-play areas
Add plantings to bnffer between holes 2 & 3
Move tees back to increase hole length
Add plantings between tees and new 2 green
Regrade the fairway to improve playing surface
Add fullway bunkers
Rebuild green forward of existing green
Naturalize out-of-play areas
Add mounds and plantings behind fue green
Rebuild tees and expand back tee to
lengthen hole
ElímÙllite teerighi of the cart path
Remove maintenance building and add
plantings left of the hole
Rebuild the green and add bunkers
Add a back tee and rebuild other tees
Expand fuirway back toward tees
Clear trees to open tee shot
Add bunkers at first landing area
Add bunker at second landing area
Rebuild green and add bunkers
Naturalize out-of-play areas
Gill Miller, Inc
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Hole 6
13
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Hole 7
A
B
('
D
E
F
Hole 8
A
B
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E
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Hole9
A
B
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F
G
Master Plan Report
Bunker Hili Golf Course. Dubuque. Iowa
Add
on
to protect new tees
Rebuild tees - aligning them with the center of the green
Selectively clear trees left of the hole to open tee shot
Shift cart up the hill to the right
RebuiW enlarge the green
Rebuild greensidc bunker wrapping it around the green to save errant tee shots ITom rolling down the hill
NatuIalize out-ofCplay areas
Remove lower left tee and build a back tee up and right of the cart path, rebuild other tees
Regrade the fairway reducing cross slope and add fairway bunkers to define the landing area
Naturalize and add plantings left of the hole
Reroute golfholc eliminating the dogleg
Md bunker at second landing area
Clear trees and relocate green complex
Add new ITom green to new 9 tees
Add plantings screen new 9 tees
Hole 10
A Shift tees north away ITom hole 1
£ Add mounds and plantings to buffer tees ITom 9 green and 1 tees
C Regrade the fairway to improve visibility of the landing area
D Add a left fairway bunker
E Md mounds and plantings to protect 11 tees wm errant tee shots
F Add mounds and plantings to define the landing area and screen hole I
G Relocate green with bunker to increase length of the hole
H Naturalize out-of-play areas
Gill Miller, [no
Remove trees emd move tees back to increase
length of the
Add plantings ]'oteet tees ITom errant shots
on hole 5
Widen the famvay and expand it towards the
tees
Remove,
add
Rebuild
ITom the tees
Rebuild and expand the green and rebuild the
greenside Dunkers
Naturalize out-of play area
, æiocatc some coniferous ITees and
buDkels
bunker making it more visible
Add plantings to screen tees ITom hole 8
Relocate tees and add fuIllength cart path
Reshape and regrade the fairway to play
ITom the new tee location
Eliminate pond and rebuild the green with
bunkers
Add mounds and plantings to screen 10 tees
Add backdrop plantings behind the green
Naturalize out-of-play areas
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Master Pian Report
Bv.nlœr Hili Golf Course. Dubuque. Iowa
Hole 11
A
B
C
D
E
F
G
H
1
Add mounds and plantings to protect tees ITom errant tee shots on hole 10
Add plantings to screen hole 8
Add a back tee to increase hole length
Rebnild and expand tees
Relocate cart path left of the tees
Natoralize ont-of-play areas
Widen the fairway
Add cart path
Rebuild the green
Hole 12
A Add a back tee
B Add a cart path to the proposed back tee and
extend it to the future maintenance area
Rebuild and expand tees
Relocate forward tee
Expand fairway back towards tee
Create a full length cart path along the left
side of the hole, eliminate cart path on right
Natoralíze out-of-playarea
Rebuild / add bunkers
Rebuild the green moving up the bill
C
D
E
F
G
H
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Hole 13
A Relocate the tees closer to Grandview A venue and stagger them to the left
B Cut hillside for visíbility from the tees and add new cart patb
C Expand the failway towards tbe tee
D Rebuild the green complex
Hole 14
A Relocate tbe tees up tbe hill creating an elevated tee shot and added length to tbe hole
B Create a new cart patb to tbe new tees
C Expand tbe fairway towards the proposed tees
D Widen the fairway and add a new fairway bunker to define the landing area
E Add a fulllength cart patb along tbe left side of the hole
F Natoralíze out-of-playareas
G Rebuild and expand the green and bunkers
Hole 15
A Rebuild tees
B Add a creek with waterfall into a 10wer pond
along tbe right side oftbe fairway
Regrade the fairway to create a better playing
surface and contour tbe fairway
Naturalize out-of-playareas
Add a pond to 10w areas (see hole 16)
Add plantings to screen hole 16
Relocate the green converting hole into a par 5
Add a fairway bunker to help define tbe secon
landing area
Add plantings to screen hole 3 as well as the
entrance drive behind tbe green
C
D
E
F
G
H
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Master Plan Report
Bunker Hill Golf Course. Dubuque, Iowa
Hole 16
A Reroute the entrance drive to the west providing
an opportunity for holes 15 and 16 to increase
in length
Develop larger tees to the west
Add plantings to screen entrance drive
Add fulllength cart path
Reshape and expand the fairway
Expand the pond and create a recirculating
stream and waterfall feature
Rebuild and shift the green to the east bringing.
the water into play
B
C
D
E
F
G
Hole 17
A Add a hack tee across the entrance drive
B Rebuild tees shifting them north
C Add a series of recirculating ponds and waterfalls to the right of the hole
D Add a full length cart path left of the hole
E Regrade and sbift the fairway north to playas a slight dogleg
F Add fairway and greenside bunkers
G Rebuild the green to allow for new tees on hole 18
H Add plantings to screen new tees to hole 18
¡ Naturalize areas
Hole 18
A Develop new tees near old 17 green site to increase length of the hole, stagger left
B Add plantings to screen hole 17
C Add a fulllength cart path along the right
D Create a series of recirculating ponds and waterfalls
E IncoTPorate natural areas
F Expand the fairway left and towards the tees
G Add plantings along both sides of the hole
H Add bunkers to define the landing area
I Rebuild the green and bunkers
J Add plantings behind the green to screen the
parking 10t and entrance road
Practice Area
A Add a practice bunker next to practice green
B Add a practice fairway
C Add plantings to screen practice cbippmg area
ITom hole 18 and to protect golfers ITom errant
tee shots
Add cart path with turn around to practice
cbippmg area
Regrade and reshape fairway practice area
Add plantings between practice area and hole 1
as well as entrance drive
D
E
F
Entrance Road, Clubhouse and Putting Green
A Reroute entrance drive to the west providing an opportunity for holes 15 and 16 to mcrease in length
B Add plantings on both sides of the entrance to providing a buffer ITom the golf course
C Remove or relocate building( s) and expand parking 10t
D Remove maintenance building and add plantings along the slope left ofhole 4
E Rebuild and relocate the putting green
F Expand the patio I cart staging area
Gill Miller, Inc
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Master Plan Report
Bunker Hill Golf Course, Dubuque, Iowa
New Maintenance Area
A Relocate maintenance facility - constrnct a 9,000 sfbuilding
B Create a maintenance entrance and parking 10t off Grandview A venne
C Add cart path ftom the parking lot to the back tee on hole 12
D Add cart path connecting it to the path near hole 12 forward tee
E Extend cart path to holes 7-8 providing an alternate conte for moving maintenance equipment tbrongh
the golf course
Summary:
After implementing the proposed improvements the course wonld playas follows:
Front Nine Back Nine Total Difference
Blue: 3,162 yds 3,009 yds 6,171 yds +855 yds
White: 3,00Oyds 2,792 yds 5,792 yds +828 yds
BIW par 35 35 70 +1
Gold (NEW): 2,812 yds 2,584 yds 5,396 yds
Red: 2,386 yds 2,258 yds 4,645 yds +327 yds
Red par 35 35 70 +1
The Bunker Hill Golf Course is a unique golf experience. The golf course itself has many
attributes including it's central location, great views, mature trees, and a challenging yet fun
layout. Architecturally, the golf course is well routed and generally safe. In sunnnary, the
improvements necessary to increase Bunker Hill Golf Course's status as a popular public, daily
fee course in today's golf market include:
1. Establishing a longer course to meet the needs of the longer and stronger golf market
2. Improving drainage, particularly the channel that runs along holes 15, 16, 17 and 18
3. Regrading fairways and improve turfgrass
4. Incorporating natural areas to reduce maintenance and better define or buffer adjacent golf
holes
5. Esablishing a true multiple tee system to better meet the needs of women, juniors and
seniors
6. Rebuilding all greens to current construction standards
7. Upgrading irrigation system and irrigation pump station
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Gill Miller, Inc has appreciated working with the City of Dubuque in preparing a Master
Improvement Plan for the Bunker Hill Golf Course. We look forward to playing the revitalized
Bunker Hill Golf Course.
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Master Plan Report
Bunlœr Hill Golf Course. Dubuque. Iowa
Respectfully yours,
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Jon Schmenk, Gill Miller, Inc.
Attached:
Gill Miller, Inc
Individual Hole by Hole Assessment (sheets 1-21)
Master Improvement Plan
hrigation report prepared by EC Design Gronp
USGA Green Section Turf Advisoty Service Report prepared by Paul Venneulen
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Master Plan Report
Bunker Hill Golf Course. Dubuque. Iowa
Gill Miller, Inc has appreciated working with the City of Dubuque in preparing a Master
Improvement Plan for the Bunker Hill Golf Course. We look forward to playing the revitalized
Bunker Hill Golf Course.
Respectfully yours,
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Jon Schmenk, Gill Miller, Inc.
Attached:
Individual Hole by Hole Assessment (sheets 1-21)
Master Improvement Plan
hrigation report prepared by EC Design Group
USGA Green Section Turf AdVÍSO1y Service Report prepared by Paul Vermeulen
Gill Miller. Inc
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A Shift tees and cart path south away from 10 tees
B Mound and plant between tees
C Add plantings between tees and 3 fairway
D Contour the fairway
E Mound and plant between holes 1 and 10 and
add plantings between holes 1 and 2
F Naturalize area right of the hole
G Relocate green adding 40 yards to the hole
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Golf Hole Analysis
Hole No.2
A Create new back tee and rebuild / relocate
existing tees and cart path
B Add plantings between tees and 1 green
C Regrade fairway to soften severe side slope and
redirect the hole to create a dogleg to the right
D Add new fairway bunkers
E Relocate green up the hill
F Naturalize out-of-play areas
G Add plantings to buffer between holes 2 & 3
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A Move tees back to increase hole length
B Add plantings between tees and new 2 green
C Regrade the fairway to improve playing surface
D Add fairway bunkers
E Rebuild green forward of existing green
F Naturalize out-of-play areas
G Add mounds and plantings behind the green
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A Rebuild tees and expand back tee to lengthen
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B Eliminate tee right of the cart path
C Remove maintenance building and add!
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D Rebuild the green and add bunkers
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A Add a back tee and rebuild other tees
B Expand fairway back toward tees
C Clear trees to open tee shot
D Add bunkers at first Banding area
E Add bunker at second landing area
F Rebuild green and add bunkers
G Naturalize out-or-play areas
H Add plantings to protect new tees on hole 6
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A Remove trees and move tees back to increase
length of the hole
B Add plantings to protect tees from errant shots
on hole 5
C Widen the fairway and expand it towards the
tees
D Remove / relocate some coniferous trees and
add fairway bunkers
E Rebuild fairway bunker making it more visible
from the tees
F Rebuild and expand the green and rebuild the
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G Naturalize out-of-play area
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Golf Hole Analysis
Hole No. '1
A Rebuild tees - aligning them with the center
of the green
B Selectively dear trees left of the hole to open
tee shot
C Shift cart path up the hill to the right
D Rebuild and enlarge the green
E Rebuild greenside bunker wrapping it around
the green to save errant tee shots from rolling
down the hill
F Naturalize out-of-play areas
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A Remove lower left tee and build a back tee up
and right of the cart path, rebuild other tees
B Regrade the fairway reducing cross slope and
add fairway bunkers to define the landing area
C Naturalize and add plantings left of the hole
D Reroute golf hole eliminating the dogleg
E Add bunker at second landing area
F Clear trees and relocate green complex
G Add new cart path from green to new 9 tees
H Add plantings to screen new 9 tees
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A Add plantings to screen tees from hole 8
B Relocate tees and add full length cart path
C Reshape and regrade the fairway to play from
the new tee location
D Eliminate pond and rebuild the green with
bunkers
E Add mounds and plantings to screen 10 tees
F Add backdrop plantings behind the green
G Naturalize out-or-play areas
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A Shift tees north away from hole 1
B Add mounds and plantings to buffer tees from
9 green and 1 tees
C Regrade the fairway to improve visibility of the
landing area
D Add a left fairway bunker
E Add mounds and plantings to protect 11 tees
from errant tee shots
F Add mounds and plantings to define the landing
area and screen hole 1
G Relocate green with bunker to increase length of
the hole
H Naturalize out-of-play areas
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Hole No. 11
A Add mounds and plantings to protect tees from
errant tee shots on hole 10
B Add plantings to screen hole 8
C Add a back tee to increase hole length
D Rebuild and expand tees
E Relocate cart path left of the tees
F Naturalize out-or-play areas
G Widen the fairway
H Add cart path
I Rebuild the green
View from the tee
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Golf Hole Analysis
Hole No. 12
A Add a back tee
B Add a cart path to the proposed back tee and
extend it to the future maintenance area
C Rebuild and expand tees
D Relocate forward tee
E Expand fairway back towards tee
F Create a full length cart path along the left side
of the hole, eliminate cart path on right
G Naturalize out-of-play area
H Rebuild I add bunkers
I Rebuild the green moving up the hill
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A Relocate the tees closer to Grandview A venue
and stagger them to the left
B Cut hillside for visibility from the tees and
add new cart path
C Expand the fairway towards the tee
D Rebuild the green complex
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Golf Hole Analysis
Hole No. 14
A Relocate the tees up the ruB creating an elevated
tee shot and added length to' the hole
B Create a new cart path to the new tees
C Expand the fairway towards the proposed tees
D Widen the fairway and add a new fairway
bunker to define the landing area
E Add a fun length cart path along the left side
of the hO'le
F Naturalize nut-of-play areas
G Rebuild and expand the green and bunkers
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A Rebuild tees
B Add a creek with waterfall into a lower pond
along the right side of the fairway
C Regrade the fairway to create a better playing
surface and contour the fairway
D Naturalize out-or-play areas
E Add a pond to low areas (see hole 16)
F Add plantings to screen hole 16
G Relocate the green çonverting hole into a par 5
H Add a fairway bunker to help define the second
landing area
I Add plantings to screen hole 3 as well as the
entrance drive behind the green
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A Reroute the entrance drive to the west
providing an opportunity for holes 15 and 16
to increase in length
B Develop larger tees to the west
C Add plantings to screen entrance drive
D Add fuB length cart path
E Reshape and expand the fairway
F Expand the pond and create a recirculating
stream and waterfall feature
G Rebuild and shift the green to the east bringing
the water into play
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A Add a back tee across the entrance drive
B Rebuild tees shifting them north
C Add a series of recirculating ponds and
waterfalls to the right of the hole
D Add a fun length cart path left of the hole
E Regrade and shift the fairway north to play
as a slight dogleg
F Add fairway and greenside bunkers
G Rebuild the green to allow for new tees on
hole 18
H Add plantings to screen new tees to hole 18
I Naturalize areas
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Golf Hole Analysis
Hole /Vo, 18
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A Develop new tees near old 17 green site to
increase length of the hole, stagger left
B Add plantings to screen hole 17
C Add a fuB length cart path along the right
D Create a series of recirculating ponds and
waterfalls
E Incorporate natural areas
F Expand the fairway left and towards the tees
G Add plantings along both sides of the hole
H Add bunkers to define the landing area
I Rebuild the green and bunkers
J Add plantings behind the green to screen the
parking lot and entrance road
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A Add a practice bunker next to
practice green
B Add a practice fairway
C Add piantllngs to screen practice
chipping area from hole 18 and to
protect golfers from enant tee shots
D Add cart path with tumn around to
practice chipping area
E Regrade and reshape fairway
practice area
F Add pllantings between practice
area and hole 18 as well as
entrance drive
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Proposed Maintenance Area
A Relocate maintenance facility
- construct a 9,000 sf building
B Create a maintenance entrance and
parking lot off Grandview A venue
C Add cart path from the parking lot
to the back tee on hole 12
D Add cart path connecting it to the
path near hole 12 forward tee
E Extend cart path to holes 7-8 providing
an alternate route for moving
maintenance equipment through the
golf collfse
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Preliminary Cost Schedule
Based on Preliminary Master Improvement Plan dated July 30, 2003
Bunker Hill Golf Course, Dubuque, IA
Revised September 8, 2003
Item Quantity Unit Cost Per Cost
1.0 - General
1.01 Site prep, clearing & grubbing 110.0 AC $200.00 $22,000.00
1.02 Site erosion control & maintenance 110.0 AC $150.00 $16,500.00
Sub-total this part $38,500.00
2.0 - Excavation, Grading & Shaping (estimated)
2.01 Topsoil stripped & replaced 70,000 CY $2.75 $192,500.00
2.02 Rough grading & shaping 1 50,000 CY $1.75 $262,500.00
2.03 Pond excavation & placement 15,000 CY $2.00 $30,000.00
2.03 Pond & creek lining 109,600 SF $0.50 $54,800.00
Sub-total this part $539,800.00
3.0 - Drainage (estimated)
3.01 4" perforated pipe wI gravel backfill 10,000 LF $5.00 $50,000.00
3.02 4" dual wall polyethylene pipe 2,500 LF $2.00 $5,000.00
3.03 6" perforated wI gf1!V~ backfill) 1,000 LF $6.50 $6,500.00
3.04 6" dual wall polyethylene pipe 1,500 LF $5.00 $7,500.00
3.05 12" dual wall polyethylene pipe 1,500 LF $14.00 $21,000.00
3.06 12" catch basin wI grate 20 EA $350.00 $7,000.00
3.07 24" catch basin w/grate 10 EA $1,500.00 $15,000.00
Sub-total this part $112,000.00
4.0 - Feature Construction
4.01 Greens (12" USGA Greens) 109,275 SF $2.50 $273,187.50
4.02 Tees (4" USGA greensmix) 115,655 SF $0.75 $86,741.25
4.03 Fairways 22.5 AC $500.00 $11,250.00
4.04 Roughs and natural areas 40.0 AC $350.00 $14,000.00
4.05 Bunker (6" local sand) 86,570 SF $1.50 $129,855.00
SUb-total this part $515,033.75
5.0 - Irrigation (refer report prepared by E C Design Group)
5.01 Double row automatic system 1 LS $310,000.00 $310,000.00
5.02 Central I sateßite conversion 1 LS $98,500.00 $98,500.00
5.03 Pump station upgrade 1 LS $98,500.00 $98,500.00
Sub-total this part $507,000.00
6.0 - Fine Grade, Seeding & Sodding
6.01 Greens
6.02 Tees
6.03 Fairways
6.04 Roughs and natural areas
6.05 Rock picking & removal
6.06 Sodding
6.07 Erosion blanket
SUb-total this part
$0.15
$0.12
$2,500.00
$2,000.00
$350.00
$2.25
$1.00
$16,391.25
$13,878.60
$56,250.00
$80,000.00
$21,875.00
$67,500.00
$50,000.00
$305,894.85
109,275 SF
115,655 SF
22.5 AC
40.0 AC
62.5 AC
30,000 SY
50,000 SY
Gill Miller, Inc. . Golf Course Architects
page 1 of2
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Preliminary Cost Schedule
Based on Preliminary Master Improvement Plan dated July 30, 2003
Bunker Hill Golf Course. Dubuque. IA
Revised September 8, 2003
7.0 - Site Work
7.01 Cart paths (asphalt) 110;835 SF $2.00 $221.670.00
7.02 Entrance roadway (asphalt) 48.415 SF $2.20 $106.513.00
7.03 Asphalt demolition and removal 21.140 LF $1.00 $21,140.00
7.04 Building removal! relocation lLS $2,000.00 $2,000.00
Sub-total this part $351,323.00
Ii 8.0 - Miscellaneous Amenities
Ii j 8.01 Landscape allowance (trees) 1LS $50,000.00 $50,000.00
8.02 Recirculating pump, pipe and electric 2EA $15,000.00 $30,000.00
8.03 Pond aerators 5EA $5,000.00 $25,000.00
8.04 Course furniture and furnishings lLS $7,500.00 $7,500.00
Sub-total this part $112,500.00
Sub-total Project $2,482,051.60
9.0 - Construction Soft Costs
9.01 Mobilization 1.5 % $37.230.77 $37,230.77
9.02 Project administration 1.5 % $37,230.77 $37,230.77
9.03 Bonds & Insurance 1.0% $24,820.52 $24,820.52
Sub-total this part $99,282.06
Total Golf Course Construction (Estimated Bid Amount) $2,581,333.66
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10.0 - Maintenance Facility
10.01 Building - non-heated space
10.02 Building - heated space
10.03 Water service
1 0.04 Sanitary sewer service
10.05 Electrical Service
10.06 Parking & misc. paving
10.07 Materials storage bins (concrete)
10.08 Fuel depot (2 - 500 gal tanks)
10.09 Wash pad w! filter & grease trap)
1 0.1 0 Rinsate system
Sub-total this part
1 1 .0 - Contingency & Design
1 1.01 Construction Contingency
1 1.02 Design, Engineering & Pennitting
Sub-total this part
Total Project
Gill Miller, Inç. . Golf Course Arçhite<:ts
6,000.0 SF $35.00 $210,000.00
3,000.0 SF $85.00 $255,000.00
100.0 LF $25.00 $2,500.00
100.0 LF $25.00 $2,500.00
1.0 LS $1,500.00 $1,500.00
12,600.0 SF $2.50 $31,500.00
4.0 LS $2,000.00 $8,000.00
1.0 LS $15,000.00 $15,000.00
400.0 SF $8.50 $3,400.00
1.0 LS $7,500.00 $7,500.00
$536,900.00
5.0 % $155,911.68 $155,911.68
10.0 % $311,823.37 $311,823.37
$467,735.05
$3,585,968.71
page 2 of2
USGA GREEN SECTION
TURF ADVISORY SERVICE REPORT
BUNKER HILL GOLF COURSE
DUBUQUE, IOWA
United St&es Golf Association
Mid-Continent Region Green Section
9 River Valley Ranch
White Heath, IL 61884
Office: 217/687-4424, Fax: 217/687-4333
Present during the visit performed on July 8,2003:
Gil Spence, Park Director
Bill Burke, Superintendent
Garrett Gill, Architect
Paul Vermeulen, USGA Green Section
Statement of Purpose: The purpose of the USGA Green Section is to assist subscribing courses in
matters of agronomic management. All recommendations are offered free of bias, since the USGA has no
connections or obligations to any manufacturer, supplier, or contractor. Additionally, since 'quick fixes'
seldom result in permanent improvement, some of the recommendations in this report may not be easy to
implement and it could take more than a single season to produce the desired results.
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Page 2
Introduction
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It was a pleasure visiting Bunker Hill Golf Course to discuss course maintenance operations
on behalf of the USGA Green Section. As a quick review, the major topics of discussion
pertaining to the proposed Master Improvement Plan authored by the architectural firm of Gill
Miller, Inc. are as follows:
0 Reconstructing all eighteen greens,
0 Enlarging the tees,
0 Selecting a turf species for reestablishing the fairways,
0 Establishing unmown areas in the rough, and
0 Building a new maintenance facility.
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If there are any questions regarding the contents of this report or should any questions arise in
the future, please do not hesitate to contact my office.
Reconstructing All Eighteen Greens
To assess the value of rebuilding all of the greens as per the proposed Master Improvement
Plan, a visual examination was made of each. From a purely agronomic perspective, greens
Nos. 4, 6, 10, 13 and 17 were considered excellent candidates for reconstruction due to their
history of poor turf performance. While the exact reasons for their difficulties in the past vary
in each case, poor surface and subsurface drainage, heavy shade, and poor air circulation were
major causes in most cases.
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In regard to the remaining thirteen greens, the justification for rebuilding is not as clear cut,
but it is nonetheless compelling, if one considers that new greens would be designed to last
more than 100 years. The first argument for rebuilding greens Nos. 1, 2, 3, 5, 7, 8, 9, II, 12,
14, 15, 16 and 18 is that the current stand of turf has clear genetic limits that I) prevent the
putting conditions ftom being maintained at a high level of quality year-round and 2)
jeopardize its survival during extended periods of heat and humidity. In short, the turf cannot
be mowed continuously at a low cutting height to produce a fast, true putting surface from
early spring through late fall without causing noticeable thinning and eventual moss invasion.
Also, the large population of Poa annua that has invaded the original stand of creeping
bentgrass has poor heat tolerance and is very susceptible to numerous fungal pathogens that
are prevalent during the summer months. Combined, these weaknesses can result in sudden
death during an abnormally warm July or August.
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The second argument in favor of rebuilding the remaining thirteen greens is architectural in
nature. Along these lines, the first point to consider is the lack of numerous hole locations on
individual greens, such as No. 11, that limits variety in daily course setup and concentrates
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pedestrian traffic. The second point is that adding significant yardage to the course's layout
simply requires moving several greens, such as Nos. 1,2,8,9,10, IS, 16 and 17. Lastly,
rebuilding all of the remaining thirteen greens would give the course a consistent architectural
theme from the first tee through the eighteenth green and make possible subtle but significant
improvements, such as moving green No.3 further away from Bunker Hill Road.
Based on agronomic and architectural arguments, it was concluded that the best, long-term
action would be to rebuild all eighteen greens.
Enlarging the Tees
Based on the pattern of concentrated divot removal seen on several of the tees, it was evident
that enlarging their size, as part of the Master Improvement Plan, is well justified. To guide
this effort, the following tee sizing recommendations based on a play volume of 200 rounds
per day and a 21-day divot recovery period are offered:
Par-3 21 days x 0.6 fe x 200 rounds + 3,600 fe = 6,120 ft2
round day
ParA & -5 = 21 days x 0.4 ft2 x 200 rounds + 3,000 ft2 = 4,680 ft2
round day
Nos. 1&10= 21 days x 0.4 ft2 x 200 rounds + 3,400 ft2 = 5,080 ft2
round day
In regard to the actual construction of tees, overlaying a subgrade of native soil with four
inches of sand blended with soil and/or peat is recommended. To illustrate this method of tee
construction, please note Diagram 1 below.
4-inch layer of premium
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Diagram I: Typical cross section of new tee construction.
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Sèlectiug a Tun Species for Reestablishing the Fairways
Given that the fairways at Bunker Hill Golf Course were established with old varieties of
Kentucky bluegrass that have given way to significant Paa annua invasion, it was not
surprising that the main topic of discussion regarding their care was selecting a new turf for
establishment, if the Master Improvement Plan is carried out. To help come to a firm decision
regarding the selection of a new turf for the fairways, I would like to offer the pros and cons
for perennial ryegrass mixed with Kentucky bluegrass, Kentucky bluegrass, and creeping
bentgrass.
Option 1 -Perennial Ryegrass Mixed with Kentucky Bluegrass
Advanta2es Disadvanta2es
1. Rapid establishment. 1. Is susceptible to winter damage.
2. Excellent seedling establishment when 2. Requires multiple fungicide applications
overseeded into existing fairways. during the summer to prevent significant
3. Provides good quality playing surface when damage from pythium, brown patch, and
mowed between 5/8 and 3/4 of an inch, gray leaf spot.
Option 2 -Kentucky Bluegrass
Advanta2es Disadvanta!!es
1. Provides good quality playing surface when 1. Requires course closure from mid-August
mowed between 7/8 and 11/4 inches. through late spring for establishment.
2. Provides good wear resistance and divot 2. Requires fumigation to control Paa annua
recovery. prior to establishment.
3. Provides good disease resistance depending 3. Requires seasonal herbicide treatment for
upon variety selection. control of Paa annua.
4. Requires one to two fungicide applications
for the control of summer patch, leaf spot,
and dollar spot.
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Option :3 -Creeping Bentgrass
Advantal!:es Disadvautal!:es
1. Produces excellent playing surface when 1. Requires multiple fungicide applications for
mowed between '/2 and 'Is of an inch. control of pythiurn, brown patch, and
2. Provides good wear resistance and divot dollar spot.
recovery. 2. Requires frequent mowing.
3. Produces excellent aesthetic contrast 3. Requires seasonal aerification with cam-
between fairway and rough. driven aerifier for thatch control.
4. Requires course closure from late August
through early spring for establishment,
In regard to the relative cost of establishing and maintaining perennial ryegrass mixed with
Kentucky bluegrass, Kentucky bluegrass, and creeping bentgrass, I offer the following chart:
Tnrf S ecies
Perennial ryegrass mixed
with Kentuc blue ass
Long-Term
Maintenance Cost
Cost of Establishmeut
Low
Medium
Kentuc
bluegrass
Low/Medium
Ve high
Hi
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Until such time as the fairways can be reestablished with a new turf species, it was
recommended that the maintenance budget be expanded to include two to three fungicide
applications. The reasoning for this recommendation is that the fairways have been invaded
by a substantial Paa aruma population that, when left unprotected by fungicide application,
can suffer serious damage that, in turn, would encourage golfers to play other regional
courses. Additionally, it would be ideal to purchase a large volume sprayer to make the
applications on the fairways.
Establishing Unmown Areas in the Rongh
While reviewing the Master Improvement Plan, it was noted that vast areas of the rough are
slated for reduced maintenance. More specifically, the discontinuance of routine mowing that
would allow the present grasses to grow to full maturity has been recommended in the Master
Improvement Plan. As the appearance of unmown turfgrass is generally uninspiring due to its
")~ge 6
USGA~
Bul".ker BiB GOi"CoèTse
July '2 ¡, 2003
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short stature, replacing it with tall pasture grasses, once the permanent boundary of the
unmown areas is established, was recommended. For additional reading on the care of
unmOWTI areas, please note the enclosed article reprinted from the Green Section Record.
Building a New Maintenance Facility
To support present and future maintenance activities, the construction of a new maintenance
building was given unwavering support. The primary basis for constructing a new
maintenance building is to triple the square footage of the present maintenance building that
measures a mere 3,500 square feet. To support the maintenance activities for an 18-hole golf
course, the widely accepted value for building square footage is between 10,000 and 12,000
square feet, This square footage would be typically divided as follows:
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Equipment storage
Equipment service area & supply storage
Office space & employee facilities
Total -
8,000 square feet
2,000 square feet
2,000 square feet
12,000 square feet
Conclusion
The mission of the USGA Green Section is to assist golf course management and club officials
in achieving the best possible playing conditions for their golfers. It is hoped that the Turf
Advisory Service visit and report will be helpful to you and that the established relationship
will continue in the future. In addition to the Turf Advisory Service visit, the subscription fee
is, in part, supporting on-going research efforts at leading Universities across the country.
Sincerely,
7~{J,Ýf¿A~l
Paul H. Vermeulen -r-
USGA Green Section
PHV:jhnv
Oc:
Gil Spence
Bill Burke
Garrett Gill
Enclosure:
"Makin' Hay" byE. Vavrek
] Mal<in' Hay
The use of common farm implements
to manage natural roughs.
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FUrs V.'\Vi\l,¡"
he trend at many courses is to
reduce the acreage of costly,
manicured roughs and incorpo-
rate more low-maintenance turf into
the layout. Consequently, areas of
unmowed turf, native gr.lSses, and wild-
flowers are becoming a common sight
in more golf course out-of-play areas as
golfers begin to appreciate this transi-
tion. The course with vast expanses of
wall-to-wall manicured turfis becom-
ing an endangered species in many areas
of the upper Midwest.
The bendìts of reducing the amount
of high-maintenance turf have been
well documented over the past ten
years as an increasing number of golf
courses have become participants in the
popular Audubon Cooperative Sanctu-
ary Program. Less mowed rough
ultitnately reduces maintenance costs,
and the natural areas can provide
excellent habitat for wildlife. However,
i natural roughs still require annual main-
, !J tcnance to prevent uncontrolled wced
1,'.!~""'",,j' growth and the undesirable accumula-
. tion of excess plant debris that can
. detract fi'om the overall appearance of
. the course.
"ll The most common method of main -
I,-J taining a consistent natu¡:¡] rough is to
J','" scalp down the site during the late fall
I or early winter and then collect the
,U excess 'plant material. Collecting the
~' clumps of debris is a time-consumiug,
,J' labor-intensive opel"tion. particularly in
, expansive roughs. A cool burn can be
~'... " an etJ,,>ctive way to maIJJge prairie
¡ grasses and some species of unmowed
I cultivated turf, but local ordinances
often restrict or prohibit burning
] operations. The topic of this nlrftip is a
fast, snllple way to mow and clean the
debris fÌ'om nann,,1 areas using
cammon farm implements.
First, mow the site during late fall
using a bush hog-type unit, flail mower,
or rotary mower, depending on the
composition of plant material found in
the native area. Clean, sparse gl"sses can
be scalped down witl, a common rotary
unit, but sites with woody plant
material, saplinb'>, or extremely dense
grass will require more heavy-duty
mowing equipment.
The next critical step is to windrow
the plant debris to facilitate the bailing
process. A Kuhn rake is ideal for this
operation. The down pressure on the
spinning tines can be increased to
scarify the soil and thin out thick native
grasses.
The final step is to use a small New
Holland bailer to collect and bail the
plant debris. Bails can be rolled onto a
small trailer and removed from the site.
These bails typically contain tOo much
soil and other undesirable material to
be usefill as feed for livestOck. Once the
bulk of the plant debris is removed, the
sites can be cleaned up with additional
light rotary mowing operations, if
necessary. Clean, scalped sites will pro-
duce a consistent crop of relatively
uniform turf the following season and
facilitate the application of pre-emer-
gence or post-emergence herbicides, if
needed, the following spring.
The cost of a common bush hog-
type unit or flail mower with enough
muscle for scalping down dense roughs
is approximately $6,000. A Kuhn rake
costs about $4,000, and the smallest
New Holland bailer costs about
$]4,000. Bailers and rakes can often be
rented in many rural areas.
Mike Morris, CGCS at Crystal
[)owns Country Club (Frankfort,
Mich.) has used this technique with
success for several years. Rick Grunch,
superintendent at the Belvedere Golf
Club (Charlevoix, Mich.), using slightly
different equipment, has performed'
similar and equally successfi,l operations.
Both courses provide golfcrs expansive
areas of pristine roughs each season by
/IIaMII' hay.
BOB VAVREK call beß>lIlId /IIakill' hay
¡,,/¡ife Ihe SIIII shilles at golf wlI"es tll/'(,,(~h-
¡>III .Hi(¡'(~all, If ïSWII.,ill. and .IJÙJl/esot<l.
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Removing dense clumps of plant debris from mowed sites is a time-consuming operation unless
specialized equipment is used. A Kuhn rake will windrow plant debris and the tines will further thin
out dense stands of native grasses.
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Water Management Resource Company~'
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ERIK CHRISTIANSEN DESIGN GROUP, ITD.
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Post Office Box
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We", Des Moines,
iowa 50265
Phone (515) 225-6365
F@)((515)225-6365
INTRODUCTION
BUNKER HILL GOLF COURSE
IRRIGATION SYSTEM ANALYSIS
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The purpose of this proposal is not to make anyone an expert in irrigation, but to build a base of
knowledge so that your course can make an educated decision on the best method to proceed with
your irrigation improvements. Our job at EC Design Group is to apply our 25+ years of irrigation
experience and explore what you have today, furma conclusion of components, efièctiveness of the
system, and show updated measures to improve and meet your budget constraints.
In this study we will discuss the basic components ofanirrigation system and how each one fits into the
system Next is an overview on components and hydraulics (water inmotion). Finally, we will talk in
specifics about your particular "ìrrigation" improvements and associated budget costs.
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COMPONENTS
A.
FIVE MAJOR COMPONENTS OF AN IRRIGATION SYSTEM:
1. Controller. The controller or field satellite is considered the brain of the
system. A controller will be one offour basic types:
. Electromechanical
. Solid State
. Hybrid
. Hydraulic
Controllers/satellites are either a stand alone (they have their own day &
hour wheel) or are operated by a central control system. They need 110
VA.c. power and send either a 24 V.A.C. electric or a hydraulic signal
2. ~ They are automatic and open and close after receiving a signal
from the controller. '
3. Sprinkler Heads. They come in a wide variety of types. Sprinkler heads
apply the water to the turf or plant material that we want to irrigate.
4. Water Source/Pump Station. This is considered the heart of the system
and not only is an extremely important component but equally so is where' the station gets
its water. The pump station should have adequate water to perform its operating
schedule and run automatically with ~ controls to prevent water and air hammer.
5. Pipe. All previous components are held together with pipe and fittings.
Pipe is buried IS" - 36" below grade and is installed with a pipe puller or
is open trenched fur larger diameter piping.
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Our goal at EC Design is to design the proper system that takes <!Jl these components into consideratiOl
along with Bunker Hill Golf Course's needs fur the best system possible.
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HYDRAULICS
A.
HYDRAULICS is the effect of water in motion. In irrigation design, we consider
three properties of water:
1.
2.
3.
Water pressure. The force that moves the water
Velocity. The speed at which the water is moving
Friction loss. The loss of water pressure as water passes through pipes
and devices such as isolation valves, fittings, and control valves.
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All these items must be taken into consideration to effectively design an irrigation
system. Ifwe ignore anyone item, we stand the chance to cause damage to our
piping and our sprinklers will not give efièctive coverage causing short and long
term management issues.
B.
WATER PRESSURE. Is calculated as a function of the height of a column of water. A
I-foot high column of water exerts .433 pounds per square inch (PSI). As the height of
the water column increases, pressure at the base increases at the rate of .433 PSI per foot.
Conversely, moving water up a column, .433 PSI is lost per foot of elevation change.
.-'- WATER
--_n-- --r-LEVEL
STORAGE I -STATIC PRESSURE
TANK ,- WATER-
I. NO FLOW - PRESSURE SAME LEVEL r; --------
AT ALL POINTS.
STORAG
g AVAILABLE PRESSURE - TANK
- PRESSURE IIECREASES AS
... DISTANCE FROM SOURCE
. æ INCREASES.
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37.9 P.s.1.
lEVEL
DEMAND
!9INT
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39.IP.sJ.
Two forms of water pressure exist. First, static pressure refers to pressure within a system where water
is not moving. Second, dvnamic pressure refers to pressure within a system where water is moving.
As water moves, fiiction loss occurs in pipe, fittings, valves, and other devices the water must pass
through. We can calculate these friction losses and subtract them from the static pressure to determine
the dynamic or.wm:!ill!g pressure. Since water cannot be compressed, fiiction losses are cumulative.
Pressure can only be increased within an irrigation system by an elevation change or an addition of a
pump station. Therefore, we must control ftiction losses in order to maintain the integrity of
the piping network and provide the working pressure required at the sprinkler bead.
VELOCITY. The speed of water moving in piping systems is regulated for two reason
we want to control ITÏeûon loss and surge pressures.
c.
As velocity increases, so does ITÏcûon loss and the possibility that surge pressures or
water hammer may occur. This is the main eause of pipe and fitting breaks in an
irrigation system that becomes very costly to repair.
1.
Friction loss:
. Manufacturers' recommendation is not to exceed velocity of five
feet œr second tbrolli!h any section of oi~.
The result of limiting velocity flow of gallons per
minute (GPM) in pipe. This design practice then determines
pipe sizes in irrigation systems.
2.
Sul'!!e Pressures:
. Occur in piping, older systems that have been added onto, improperly
designed systems, can result in high velocities.
. The in-rush of water into an air-filled pipe causes water hammer,
which in turn can reflect the water backward and cause "ballooning"
of the pipe.
. Pressures can momentarily reach 50-60 times the velocity
reconunendation.
3.
PreventiD!! Sul'!!e Pressures & Water Hammer Throul!h Good DesÍlm:
. Design not exceeding recommended flow velocities of five feet
per second.
. Using slow opening and closing valves. Several seconds to
open and close.
. Air-relief valves to omit trapped air in irrigation system.
. Pump station that regulates properly for smooth water distribution.
. Control systems that allow flow management.
D.
FRICTION LOSS. Is always present in moving water. It reduces working pressure;
therefore, it is expressed in PSI.
1.
Friction loss increases as the followinl! increases:
.
Pipe run length
Pipe roughness
Velocity of water
Turbulence
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2.
To reduce friction loss:
. We size and design components properly.
. Limit flow demand by good scheduling of sprinkler head run times.
. Rely on central flow management systems '
III.
GOALS OF PROPER SYSTEM DESIGN
(It is not always possible to attain this highest level in all four goals because they are
inter-related.)
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ECONOMY:
1.
Competitive installation cost includes cost of equipment and installation
by a qualified golf contractor (the most abstract. but controllable through
good plans and SPeCifications).
Low operation costs; maintenance, power, and water.
2.
EFFICIENCY:
1.
2.
3.
Efficient use of water.
Efficient use of materials.
Efficient use of labor (a good irrigation SYstem can eQual one or two
people in labor savings).
Efficient use of energy (pumping costs).
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C.
FLEXIBILITY:
1.
2.
3.
Allows for minor changes in head location, additions or deletions of a head, etc.
Allows for adjustments of zone running time.
Designed for the driest time of the year with regard to watering time and proper
precipitation rates.
FUNCTIONAL (operation):
1.
Considers areas being watered with regard to shaded vs. exposed, types of soil,
plants, and terrain.
Considers the progressions of the operating cycle. A logical progression
yields ease of maintenance and mvorable evaluation by the owner.
Considers the knowledge and skills of the people operating the system.
2.
3.
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IV.
SYNTHESIS (A!\TALYSIS OF EXISTING SYSTEM BY COMPONENTS)
Spent a day reviewing the existing irrigation system with Bill Burke and his staff along with previous
visits. In OUI review process, BC Design Group likes to discuss potential short comings along with
positive aspects of the irrigation system and it's operation. Through this discovery we at BCD can then
make pertinent recommendations that will benefit the operation of the irrigation system at Bunker B..ill
Golf Course. Benefits that will hopefuly improve the playing conditions and aesthetics but also save
monies by applying water efficiently and effectively on the entire golf COUIse.
As stated earlier in this study each componer>.t is interrelated so it is essential that all components ITom
the central, piping, sprinklers, valves and finally the pumping stations are operating in~. When this is
accomplished an irrigation system reaches its ultimate efficiency and can be a powerful management tool
for the superintendent. If ill1Y irrigation system or components fall short it can be a detriment to the
quality of the golf course, which in turn will cost the course monies. We will break the system down by
components and study their current state along with a budgeta.ry summary for each potential improve-
ment.
Current (2) booster pump stations (older style clay
valve operation)
Potential V.RD. (variable frequency drive) upgrade§ to §ave electrical co§ts
A. Centrmì
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Currently Bunker Hill has a VT-4000 electro-mechanical central that uses mechanical wheels and pins
to operate. This style of system was popular in the 60's and 70's but is not the central of choice in
today's irrigation systems. This style of system will not give the superintendent the flexibility to adjust
the irrigation systemfor proper watering cycles. By utilizing better central control irrigation systems
today can better manage water applications thus provide better playing conditions to the go!f<:r while
saving monies by not over/under watering.
Bunker Hill GoJfCourse's current system should be upgraded to provide the following:
G Global adjust
0 Syringe start programs
a Multi manual
Q Individual head control
a Software driven for updates
0 Historicalflowdata
" Hydraulic flow scheduling
a RF. pagingteclmology (no wires)
a Open architecture
a Operational by real timeE.T. via optional weather station (or clial up E.T.)
It will be our recommendation thatI~unker Hill Golf Course explore an upgrade to their current system
as part of a master plan retrofit. Budgetary figures to follow in this study.
Current central with minimal management other than on/off control
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Field Satellites
Bunker Hill's field satellites are also electro-mechanical style field satellites Jike the central (dumb
satellites - only receive signal) need to be upgraded.
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Today's newer style of satellites are using RF. (radio frequency) signals. This technology has no single
wire that is limited in its ability by hard wire communication vs. R.E which utilizes O's & I 's or binary
communications. The benefit is that hard wire is limited by the type of wire; RF. is unlimited in software
changes and upgrade because of the pager technology. Furthermore, buried hard wire systems are
susceptible to lightning and anything that may cut the buried wire. It would be our recommendation that
Bunker Hill consider an upgrade in not only central control but obviously their field satellites as well.
The R.E style systems budgetary figures are to fullow in the study.
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(Field satellites are showing their age aloug
with field wiring)
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Old style electro-mechanical (poor timing control)
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B. Scheduling
The folloWÎDg information is an estimatedAcre operating schedule based on Gill Miller, Inc. master plan
ofBunker Hill Golf Course:
Water Supply and Main Line Estimated Data
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ESTIMATED WATER - AVERAGE:
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48.90 ACRES X27.152 GALLONS PER ACRE INCH
= 1.327.732 GALLONS X 1.5 INCHES PER WEEK
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= 1.991.599 GALLONS PER WEEK-:- 7 WATERING DAYS
21l15 - 4ft>
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ESTIMATED WATER - PEAK:
= 284.514 GALLONS PER DAY -:- 8 HOURS PER DAY
=35.564 GALLONS PER HOUR-:- 60 MINUTES
= GALLONS PER MINUTE 592 (@I.50" per week) *
48.90 ACRES X27.152 GALLONS PERACRE INCH
= 1.327. 732 GALLONS X2.5 INCHES PER WEEK
=3.319.332 GALLONS PER WEEK-:- 7 WATERING DAYS
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=474.190 GALLONS PER DAY -:- 8 HOURS PER DAY
=59.274 GALLONS PERHOUR -:- 60 MINUTES
= GALLONS PER MINUTE 988 (@2.5" per week in July) *
*§eeR.ain Fall and E.'f. chart
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ESTIMATED WATER WINDOW
TRIANGULAR SPACING =GPMOFFULLCIRCLEX96.3
(SPACING)2(0.866)
=.76
)
. INCHES PER WEEK OF WATER (1.50") -:-PRECIPITATION RATE (PR) .76-:- 7 DAYS(PER
WEEK) X 60 MINUTES = 14 (TOTAL MINUTES PER SPRINKLER @1. 50")
. TOTALGPM@PUMPSTATION 700-:- SPRINKLERGPM 35.80= (TOTAL NUMBER OF
SPRINKLERS PER SET) 19
. TOTAL OF ALL SPRINKLERS 635(seechart)-:-TOTALNUMBEROFSPRINKLERSPERSET 19
= (MAXIMUM NUMBER OF SETS) 34
. MAXIMUM NUMBER OF SETS 34 X TOTAL MINUTES RUNTIME PER SET 14
:- 60 = 8 hours 33 minutes
(@ 1.50") -
(@2.50") 16 hours 27 minutes
* 13 sprinklers@60' '" radius per acre (48.90 acres) See Chart
IOWA
,!Mh ill.... ~ tæ&. Ii&... :!!l.I!!. !ill:!'. ~ ill.L. OCT. !i!!!:. DEC. !2.lli
Northwest (Spencer)
RF .66 .93 1.56 2;30 3.81 4.78 3.42 3.58 2.84 1.55 1.19 .79 27.41
EVT 0.00 0.00 .46 1.81 3.61 5.69 6.82 6.01 3.56 1.87 .42 0.00 30.47
OlfF .66 .93 1.10 .49 0.00 - .91 -3.40 -2.43 - .74 - .32 .77 .79 - 3.06
North Central (Nason CIty)
RF 1.00 .961.942.464.005.013.503.87 3.161.841.6:1 1.0030.37
EVT 0.00 0.00 .42 t. 79 3.80 5.68 6.77 5.83 3.55 1.87 .42 0.00 30.13
OIFF 1.00 .96 1.52 .67 .20 - .67 -:1.27 -1.96 - .39 - .03 1.21 1.00 .24
Northeast (Waterloo)
RF 1.151.012.142.673.92 4.93 :1.803.80 3.252.151.791.1731.96
<VT 0,00 0.00 .46 1.80 3.79 5.66 6.62 5.72 3.55 1.86 .46 0.00 29.94
OIFf 1.15 1.01 1.68 1.07 .13 - .73 -2.82 -1.92 - .30 .27 1.33 1.17 2.04
"Today's courses usually need to run their water cycle iu :!:8 hours. This gives the superintendent
the flexibility to provide ample wateraud still accommodate mainteuance aud the golfer. Bunker HiD
does not bave the curreut ability to meet today's standards."
Both ofthese examples of either acreage or sprinkler calcn1ationconfirming that Bunker Hill Golf Course's
current pumping station has not been adequate fur quality tur£
Today's courses usually need to runtheirwater cycle in 8 hours, usually less. This gives the superintendent the
fiexibilityto provide ample water and still accommodate maintenance and the golfer. Bunker Hill does not have
the current ability to meet today's standards.
SprinklerCbart
Approximate Number of Sprinklers Per Acre
TRIANGULAR SPACING SQUARE SPACING
SPACING HEADS SPACING ~ SPACING HEADS SPACING ~
10' (504) 7(1 (10.5) 8.5' (552) 60.5' (12 )
15' (224) 75' ( 9 ) 13' (258) 65' (10 )
2(1 (125) 80' ( 8) 17' (151) 69' ( 9 )
25' ( 801 85' ( 7 ) 21.5' ( 97) 73.5' ( 8 )
30' ( 561 90' (6.2) ! 26' ( 65) 78' ( 7 )
35' ( 42) 95' (5.6) 30' ( 48) 82' ( 6.4)
40' ( 31) 100' [ 5.01 34.5' ( 38) 86.5' ( 5.BI
45' ( 251 105' ( 4.51 39' [ 29) 91' ( 5.3)
SO' ( 201 110' ( 421 43' ( 241 95' ( 4.8)
55' !16:5F". 115' 13.8) 47.5' ( 20) 99.5' ( 4.41
60' ( 14) 120' I 3.5) 52' ( 16) 104' ( 4.1)
65' ( 12) 125' (3.31 I 56' ( 14) 108' ( 3.9)
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A superintendent must keep turf grass out of dormancy and healthy to keep disease and other turfmanagement
issues at a minimum. This not only helps keep the course more playable but also helps reduce expensive
chemicals needed to treat turf diseases and wilt conditions. Bunker Hill Golf Course's staffhas truly had a
challenging job of watering with the current irrigation system, which has undersized main line and pump station
capabilities. The staff simply must exceed manufucturers flow rates to get water to the course and not lose tur£
c.
Sprinkler Heads
Bunker Hill has the old style Toro high pressure, high volume sprinkler heads. These sprinklers, in their
day, were acceptable in terms of their operation and distributions but as shown in the chart are not even
close to today's distribution pattern. Like the controllers, the new style bead applies more accurate
moisture giving Bunker Hill Golf Course better playing conditions and not over/under watering areas by
quality nozzeling and accurate spacing and applications (good design).
c:e:::r-' I ""AiiiiioIPiil...--,
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NazzleSID. 73. +-L. ~-. - -"-"-------'-'-1
M --~._---~ ...----, ,
Flow RIle ( - 56.112 , " DeaIee of Ate - T36O - _._---~
DIIIrIT-ofT.. 0111419505:32 M!!!sJRevoIatIo '4:00--- ,
=F~ User Created -- J _1
-="'"!f_-, --',--.-- ---Reco!'.dNunÞr ..1 PROOOoI
ComIpent ==t. C~4X73AS.14.__..=.'~~~==--=:~
r'----::-~---~~ _,~RadiUSofThrowperASAEStandard 5398.1: 87 F~__~-------- ---
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80
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0 W ~ - ~ æ 80
Distance in Feet
'no'""",. ,\.
85OS-56
85OS-
5&
-«1.35
1om12O 110:
. User CreIted . -
Hum:.24.!16 Bar:8OO.12 Ai:65.18 WII:68.7.-
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8Ô.o--------'-ï
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380 ~=~~-j
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11725-411 .._,~
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I---'------~nkler Radi~~-;.:.wperASAE s:::.~-~~.1: 85 Feet .'-_U_"-_u_---------
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30
~ 50
Distance in,Feet
60
70
80
90
Furthermore, it is appearant that most holes will receive architectural improvements that will require new
irrigation installatioIL With that it would be our strong recommendation that Bunker Hill consider
replacing all of the sprinklers withnew low volume/low pressure heads along with the controllers, piping
and pump stationrecommendation to follow.
Older style high volume/pressure sprinklers
D.
WaterSource/Pump Station
Need to reduce the impact (aesthetics) ofthe current building along with the pump station
Bunker Hill Golf Course's current water source is city water with power of208 volt 3 phase. Service
disconnect 225 amp breaker, located in the basement of the clubhouse. Transformer size 150 KV A,
located inftont of the cJubhouse. 6" city water feed (to be confirmed with city waterworks). Inlet pressure 55
psi before backflow preventer and water meter; 400-425 GPM based on 6" city water line.
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The current booster system is in need of a single Y.F.D. (variable frequency drive) booster system as the
current system is not providing any safety or control and probably does not meet some codes. We
would like to see around 750 GPM (figures from scheduling section) at a 30+/- boost to aid in quality
flows/pressure regulation. This would maintain better profiles providing water quality turf conditions.
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It is our recommendation to replace the existing station with one pumping station with the
fullowing features:
. UL.listedNEMA 4 control panel assembly w/IOO amp disconnect and water/air heat
exchanger
. Microprocessor controls withAccu Ware station software to maintain constant pressure
at variable flow
. Touchscreen operator inter1àce fèaturing:
. Digital flow (GPM) and pressure (PSI) display
0 Both cumulative and resettable gallons pumped indicators
0 Pump ready/running status with elapsed run time display per pump
0 Individualmotoroverloadreporting
. Remote monitoring and control software package with Maintenance Manager
. PumpLink OCX for interfàce with irrigation central control system
IS hp variable frequency drive sequenced between all main pumps
. Input line reasctor with transient suppression
. Dualmechanica1 interlocking output contactors for auto-alternation ofmain pumps and
manual override .
. Premium transient/surge protection package for 480 volt circuits
. Fusedmotorprotectionratedat200,000ALC.
. 15 hp, 1800 RPM open drip proof(ODP) motors with winding heaters
IS hp, 1800 RPM horizontal centrifugal pumps, each rated for 400 GPM
. 2 hp, 3600 RPM horizontal centrifugal pressure maintenance pump
. Individual pump isolation and check valves
. 2" Cla- Valve pressure reliefvalve with lug style butterfly isolation valve
. Hose bib connection for wasbdown/blow-out
. 8" station inlet isolation valve
. 4" flowmeter spool with Data Industrial flow sensor
. 4" station discharge isolation valve
. Structurally superior, formed 3/8" reinforced steel skid fur mounting pumps, controls and
piping
. Steel grit blasting of pump station skid and all piping
. Two part epoxy primer coat of all painted surfaces
. Polyurethane paint final coat of all painted surfàces for superior protection
. Baked and curing process of all primer coated and painted surfuces
. Complete assembly, calibration and dynamic test prior to shipment
. Two sets of operation and maintenance manuals
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. Customer service teclmical phone support, teclmicians to call24n
. Factory authorized service teclmicians on call24n
. 4" FL x 8" PE fubricated steel discharge drop pipe with swivel connection, 2" blowout
fitting
. 8" FL x 8" FL inlet iàctricated steel inlet drop pipe with swivel connection
. Remote monitoring package, optional Radio Connection
. Single 8" Backflow Preventer in enclosure
. 8" Water Meter in enclosure (as per city requirements)
. 5KW pump station heater
. Pump house steel enclosure, two part epoxy primer coat of all painted surfaces
E.
Hydraulic Integrity of Piping
Bunker Hill Golf Course's piping will not accommodate our recommended improvements and is cur-
rently nnming velocities muchbigher than the manufàcturer recommendation of5FPS. Wrth this, it
would be our recommendation that the new system include new PVC piping as well This is evident
with an inlet (city) of6" that should only produce 400-425 GPM Inour scheduling example we would
like to see 750 +/ - GPM and this would require an 8" service. Bunker Hill is forced to exceed manu-
fucturer recommendations of5FPS (on the main and laterals) to water the golf course in a reasonable
water window (8 hours or less). Therefore, like the pumping station, Bunker Hill should replace their
undersized piping on both mains and laterals.
Today's centralized systems, and high quality pumping plants coupled with good desiMare the big asset
in good hydraulics. Previonsly in this study we discussed the advantage to goodcentrallsatellite control
and how it could benefit the irrigation system. This will not only give the superintendent the hïghest level
of control needed to water his course but does so byconsideringthe integrity of the hydraulic structures.
This means of operation looks at piping hydraulics and only moves the proper amount of water through
a given pipe and its size.
F.
Total Feasibility-8tutly Summary
Issues with Bunker Hill Golf Course's current irrigation system:
. UpsizeP.0.C.to8"from6"
. Replace two aging booster pumps with one VFD
. No accurate central control (hydraulic historical programs)
. Old style (deteriorating) satellites - parts availability will become an issue
... High pressure heads with poor distribution (see charts)
. High velocity in piping system (mains and laterals)
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Total Budget Figures - $98,500.00*
G Central/Satellite Conversion
. Central
. Satellites
. Radio control
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H. Sprinkler and Piping Infrastructure
. Double row fuirways
. Green beads and surrounds (help maintain green banks and poagrasses)
. Single main for both systems
. P.R V. -located at strategic points on golf course
. Air relief valves (at high points - currently there are none)
Total Budget figures - $310,000.00*
I. Pump Station & Structure
. VFD
. Single main zone
. UL. Nema 4 approved electrical equipment
. Flow management
. Self enclosed pump house structure (better aesthetics)
Total Budget figures - $98,500.00*
As previously stated all irrigation components are inter-related taking action on part of the system
upgrade without acting on the rest could help towards the goal of a total retro-fit but until all stages are
complete Bunker Hill Golf Course will not see total optimization.
Total Budget figures - $507,000.00* - Turn key
* Figures do uot iuclude any upgrades to the existing power supply or city piping aloug with
associated permitting and fees.
EC Design Group, Ltd. along with the office ofGiII Miller, Inc. would be able to use this study, in addition to
infurmation supplied to our office, to help assemble plans and specifications. With this, Bunker Hill Golf Course
would be able to choose a quaIi:fied irrigation contractor to install selected improvements.
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Study performed is empirical in nature and was composed by iriformation gathEred during meeting(s)
with Bunker Hill Golf Course.
v.
Appendix
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