White Water Creek Bridge Relocation
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MEMORANDUM
October 27,2005
TO:
The Honorable Mayor and City Council Members
FROM:
Michael C. Van Milligen, City Manager
SUBJECT: Consultant Recommendation for White Water Creek Bridge Relocation
The State Historic Preservation Office has awarded a $30,000 grant to the City of
Dubuque for relocation of the historic White Water Creek Bridge to a planned bike/hike
trail in the Bergfeld Recreation Area in Dubuque Industrial Center West. The City's
$20,000 local match has been budgeted.
Five proposals were received in response to a Request for Proposals distributed for a
consulting engineer to conduct a structural analysis of the bridge, to develop
specifications for moving the bridge to Dubuque, and to prepare construction plans for
the new bridge abutments in the Bergfeld Recreation Area.
Planning Services Manager Laura Carstens recommends City Council approval of the
selection of NNW, Inc. as the consultant for this project, and recommends that City staff
be authorized to negotiate a contract with NNW, Inc. for a fee not to exceed $20,000. If
staff is unable to negotiate a contract with NNW, Inc., it is recommended that the City
Council authorize City staff to negotiate a contract with Graef, Anhalt, Schloemer for a
fee not to exceed $19,740.
I concur with the recommendation and respectfully request Mayor and City Council
approval.
(l1w{ l4;rJL
Michael C. Van Milligen
MCVM/jh
Attachment
cc: Barry Lindahl, Corporation Counsel
Cindy Steinhauser, Assistant City Manager
Laura Carstens, Planning Services Manager
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MEMORANDUM
October 26, 2005
TO:
FROM:
Michael Van Milligen, City Manager
Laura Carstens, Planning Services Manager ~
SUBJECT: Consultant Recommendation for White Water Creek Bridge Relocation
Introduction
This memorandum transmits the consultant recommendation for Professional Design
Services for the Historic White Water Creek Bridge Relocation Project, for review and
approval by the City Council. Information on the project and the proposal submitted by
the selected firm are enclosed.
Background
The historic White Water Creek Bridge was constructed in 1872 as part of an approach
span for a bridge over the Mississippi River. It later relocated to White Water Creek, 15
miles southwest of Dubuque near Cascade. In the 1990's Dubuque County determined
the bridge was no longer able to handle vehicular traffic, and had to be replaced. The
City of Dubuque agreed to accept ownership of the bridge from Dubuque County, and to
preserve it through reuse on a bikelhike trail in the city.
In 1998, the City of Dubuque signed a Memorandum of Agreement with the Federal
Highway Administration, State Historic Preservation Office, and Dubuque County for
relocation of the historic White Water Creek Bridge to a City recreational trail.
Project Description
The State Historic Preservation Office has awarded a $30,000 grant to the City for
relocation of the historic White Water Creek Bridge from the Cascade area to a planned
bikelhike trail in the Bergfeld Recreation Area in Dubuque Industrial Center West. The
City has budgeted $20,000 from the Bridge Maintenance Fund as the local match for
the estimated project budget of $50,000.
The bridge will be located on the overflow spillway for the detention pond in the
Recreation Area. The historic bridge will be incorporated into a new trail that is under
construction in the Bergfeld Recreation Area. A map is enclosed.
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Historic
Vlhite water creel<. Bridge
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Engineering ServO
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September 2005 raposal
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:.. A. FIRM BACKGROUND
",a __ was founded in 1975. This consulting firm has served the Midwest area with high quality
!!!e professional engineering for projects ranging from several thousand to multi-million dollars in scope.
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;: __ seeks projects which are "principal intensive". These projects require the hands-on
;.' conceptual skills of the firm principal rather than great amounts of technical support staff. NNW was
~ founded on the firm belief of providing high quality engineering services at reasonable cost. While many
=-..' firms have one-half to one-third of their staff comprised of sub-professional, technical or support staff,
~= NNW's personnel consists of staff engineers. Trained, experienced engineers have the benefit of time,
~ practice and understanding on their side; efficient use of time and .resources comes naturally due to their
...., famlllanty With the Industry and Industry practices, which translates Into overall cost savings.
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. ~ seeks projects in Iowa, Western Illinois and Minnesota. This provides for more familiarity
~. with topographic conditions, and the capabilities of the business community. . It also provides for more
, efficient operations through minimizing non-productive overhead.
FIRM PROFILE
A review of recent work accomplishments is ample evidence of the Firm's ability to produce quality custom
engineering work of substantial size within reasonable time frames and construction budgets.
~ maintains sophisticated computer resources for its projects such as AutoCAD for production
drawings and ST AAD for structural analysis and design. Preliminary designs can be quickly visualized
and analyzed to provide optimized designs. Design documents developed by CAD assure clear and
precise drawings that allow fast modifications. This translates into savings for the client through reduced
document production time and shorter lead times for revisions throughout the project. Drawing and data
files can be transmitted between NNW and the client via high-speed DSL line or using File Transfer
Protocol (FTP).
~ carries professional liability insurance, general business liability insurance, and worker
compensation insurance.
. .
Pre-Design Planning
Design Services
Post-Design Services
Inspection
Feasibility Studies
Location Studies
Concept Development
Bridge Hydraulics
Schematic Design
Cost Estimates
Structural Design
Bridge Design
Civil Site Desig n
Specifications
Plan Issue
Bid Assistance
Construction
Management
Coordination
Construction Inspection
Submittal Review
Materials Testing
Bridges
Bridge Sounding
Crane Systems
Buildings
Our professional affiliations include:
. American Society of Civil Engineers
. American Concrete institute
. American Institute of Steel Construction
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. Structural Engineers Association of Iowa
. Iowa Engineering Society
. NSPE
Historic White Water Creek Bridge Relocation, City of Dubuque
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B. PROJECT TEAM AND SUB-CONSULTANTS ON PROJECT
Office Location
Main office:
Branch Office:
NNW, Inc.
Consulting Engineers
506 E. College Street
Iowa City, IA 52240-5114
(319) 351-2166
NNW, Inc.
Consulting Engineers
318 Broadway Avenue South
Rochester, MN 55904
(507) 281-5188
Key Staff Involved In Project
Principal In Charqe
Proiect Enqineer
Steve Jacobsen, PE
Mark Holtkamp, PE
Other Staff Available to Assist
Jane Driscoll, PE
Bachelors of Science in Civil Engineering
9 yrs of consulting engineering experience.
Rosanne Edwards, PE
Masters of Science in Civil Engineering
Over 28 yrs of experience in structural engineering.
Office Location Where Majority Of Work Will Take Place
Main office:
NNW, Inc.
Consulting Engineers
506 E. College Street
Iowa City, IA 52240-5114
(319) 351-2166
Historic White Water Creek Bridge Relocation, City of Dubuque
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QUALIFICATIONS - PROJECT MANAGER AND TEAM
. Education:
. . Master's .of Scie~ce i~ Structural
Engineenng, University of Iowa
. . Bachelor of Science in Civil
Engineering, University of Iowa
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Award Winning Bridges Include:
. . Iowa Interstate RR Bridge Ollef First
Avenue, Coralville, Iowa
o 2004 ACEC Grand Caneeptar
Award for Engineering Excellence
o 2003 Outstanding Civil Engineering
Project Achievement
Summit Street Bridge, Iowa City, IA
o 1999/owa Quality Initiative Award
o Best Steel Beam Bridge In Iowa
o 2000 Iowa Ready Mix Association
o Excellence in Concrete Award
Woolf Avenue Bridge
o 2000 American Concrete Institute
lowa- Minnesota Chapter Concrete
Bridge Award
o American Society Of Civil Engineers
Iowa Chapter Project Of The Year
1999
o Consulting Engineers Council Of
Iowa Grand Conceptor A ward
o 199B Iowa Quality Initiative Award-
Best Slab Bridge In Iowa
Melrose Avenue Bridge over the Iowa
Interstate R.R.
o 1997 Iowa Quality Initiative Award
for Best Steel Beam Bridge in Iowa
West Burlington Avenue Bridge,
Burlington, IA
o 1996 Iowa Quality Initiative
Structures Award
o 1996 Consulting Engineers Council
of Iowa Honor Award
STEVEN K. JACOBSEN, P.E.
PRESIDENT, NNW, INC.
Mr. Jacobsen serves as the Firm's principal engineer for structural and civil
engineering projects. He has over 23 years of experience that includes bridge
design. general building design and numerous retrofit projects. He has been
involved in the design and project planning of a wide variety of major bridge
projects.
Steve has a Masters Degree in Structural Engineering. which included a
concentration of study in steel fatigue. Steve continues to improve and expand his
expertise in bridge design by being involved in research projects, which have
resuited in several papers being published. Additionally. Steve currentiy serves as
a visiting lecturer at the University of Iowa teaching the course Civil and
Environmental Engineering, Structural Design I, (Reinforced Concrete Design).
Previously Steve taught Project Management and Bridge Design in Transportation
System Design.
Steve is President and majority owner of NNW, Inc., a firm specializing in structural
design and renovation of bridges. Steve has been the iead design engineer on
many bridge rehabilitation and replacement projects. On a Project Engineering
level. Steve will be overseeing the project from start to finish. His technical design
ability and management experience are invaluable to the success of this project.
Professional Affiliations
American Institute of Steel Construction American Society of Civil Engineers
American Concrete Institute Structural Engineers Association of IA
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Publications
Low Profile Railroad Bridoe. 6th International Conference for Railway
Engineering, Sponsored by the Railway Gazette, London, England, April
2003
Develooment of New Modular Steel Bridoe Desion. US-Korea Conference on
Science, Technology, and Entrepreneurship, Korean-American Scientists
and Engineers Association, Seoul, Korea, July 2002
Structural Feasibilitv of Seamen tal Steel Box Girder Bridoe. First
International Conference on Bridge Maintenance, Safety and Management,
International Association for Bridge Maintenance and Safety, Barcelona.
Spain, July 2002
Generation of Influence Surfaces for Two-Wav Slab Bridoes. Mid-Continent
Transportation Symposium, Center for Transportation Research Education,
Ames, Iowa, May 2000
Mark A. Holtkamp, PE
PROJECT ENGINEER, NNW, INC.
Mark A. Holtkamp. Project Engineer for NNW, inc. is part of the team responsible
for numerous bridge projects from inception to preparation of final drawings and
construction supervision. Mark is also the lead bridge inspector for NNW. Mark
performs bridge inspections for many cities, counties and municipalities that report
the condition of their structures to the Iowa Department of Transportation.
Currentiy, Mark is working on relocating a bridge for Jones County and The Iowa
Department of Transportation. Planning and coordinating for the Historic Hale
Bridge relocation has been a process that also involves the Army Corp of
Engineers who is in charge of flying the bridge to its new location in Jones County.
Mark will assist the principal engineer with the relocation of the White Water Creek
Bridge relocation. His experience relocating, designing and inspecting bridges,
and working in high-traffic areas make him a valuable addition to this project.
Historic White Water Creek Bridge Reiocation, City of Dubuque
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· QUALIFICATIONS - PROJECT TEAM MEMBER
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Education:
. . BSCE, University of Iowa
. Award Winning Bridges Include:
. . Iowa Interstate RR Bridge over First
Avenue, Coralville, Iowa
. 0 2004 ACEC Grand Caneeptar
Award for Engineering Excellence
. 0 2003 Outstanding Civil Engineering
. Project Achievement
. Summit Street Bridge, Iowa City, lA
. 0 1999 Iowa Quality Initiative Award
- 0 Best Steel Beam Bridge In Iowa
. 0 2000 Iowa Ready Mix Association
o Excellence in Concrete Award
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.. D. EXPERIENCE WITH SIMILAR TYPE OF WORK INCLUDING CLIENT REFERENCES
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.., ~~'Jf~:h,/.,~r.:e~",-w"~~.ifk-i"}~, tj",
.. Hal~ Bridge
... Jones County, Iowa
.. 1877-1879
,. Manufactured by
.. King Iron Bridge and
;...., Manufacturing Co.,
I- Cleveland, OH
= Three spans, 81', 82'
. and 100'.
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NNW was hired by the
Jones County Historic
Preservation Committee
to develop a preliminary
cost estimate, prepare
plans, perform hydraulic
calculations and obtain
permits for relocation of
the Hale Bridge to a
location of the
Wapsipinicon River at
Wapsipinicon State Park near Anamosa. NNW was responsible for preparing restoration plans for
the bridge and designing the bridge abutments, piers and approaches to enable its use for
pedestrian traffic. The restoration plans included: keeping the three (3) spans in the final location,
ensuring the bridge would be kept historically correct, and maintaining eligibility for the National
Register of Historic Places. Plans were also developed to stabilize and reinforce the bridge for
transport by air to its permanent location. Since the bridge is wrought iron and not steel, the repair
plans called for welding techniques requiring special care to prevent damage to the structure.
Additionally, NNW itemized restoration plan components to enable in/kind donations from
interested parties in the restoration process.
Currently in progress, NNW will supervise the completion of restoration and the construction of
abutments, certify restoration according to specifications established in the restoration plan,
ensure compliance with all regulations dealing with lead paint issues associated with the project,
and ensure compliance with all rules, regulation and requirements associated with Department of
Transportation Federal Aid Projects.
NNW was responsible for securing all permits required from regulatory agencies associated with
the project
The Hale Bridge Project, in many respects is similar to the Historic White Water Creek Bridge
Relocation project. Many of the engineering services provided for the Hale Bridge will need to be
provided on the White Water Creek Bridge. Also, the White Water Creek bridge is wrought iron
and special care needs to be given to the transportation and repair of such structures.
REFERENCES
Rose Rohr
Jones County
818 Richview Rd
Monticello, IA 52310
(319) 480-0221
Nancy Anania
Iowa Dept of Transportation
800 Lincoln Way
Ames, IA 50010
(515) 239-1621
John Austin
Dept of Natural Resources
Facilities Engineer
Wallace Street Office Bldng
502 E. 9th Street
Des Moines, IA 50319-0034
(515) 250-3719
Historic White Water Creek Bridge Relocation, City of Dubuque
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"'_ Kiwanis Park Bridge
;_ Johnson County
.. 1904
~4.. Originally- 16' wide
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M Johnson County
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When the City of Iowa City desired to use an existing
pony truss bridge as a pedestrian Bridge at Willow
Creek Park, NNW was hired to facilitate the move.
NNW prepared detail plans, specifications, contract
documents and engineer's estimate required for City of
Iowa City letting. The Contract documents had to
comply with City, State and Federal requirements and
use Iowa City Standard Specifications as base
specifications. NNW also provided necessary prints
and calculations for review by City, State and Federal
agencies.
The "new" bridge across Willow Creek is a second life
for a bridge that has already served the County for
nearly a century.
For 90 years, the bridge carried a gravel road now known as S.W. Lackender Avenue over
Picayune Creek. This is located just south and east of Sharon Center in southern Johnson
County. This type of bridge, a steel pony truss consisting of channel and plate compression
members and eyebar tension members, was common in the early 1900's. The truss is an emblem
of the time it was built, using minimal material, which was expensive, and a great deal of labor,
which was relatively inexpensive. .
The bridge was removed from that site in 1994 and was moved to its new location in 1998. It was
reduced from its original 16' width and placed on new abutments.
It is interesting to ponder the vehicles that have passed over this bridge. When it was built horses
ruled the day, soon giving way to horseless carriages. Over this bridge farmers traveled to and
from their fields, carrying thousands of bushels of grain to market. Later in life, the bridge got tired
as the loads got bigger and bigger. Finally, signs were erected to limit the loads that could be
taken across the bridge.
But now the bridge has a new life. It will carry children to school, strollers through the park and
bicyclists on their merry way. I think this bridge will enjoy its second life.
REFERENCES
Johnson County Secondary Roads
4810 Melrose Avenue
Iowa City, IA 52246
The Johnson County Conservation board hired NNW to determine the feasibility of reusing an
historic bridge in a Kent Park hiking trail. The purpose was to use the structure to provide for the
trail around the lake and crossing of some of the inlets. Our firm studied the possibility of using the
reclaimed bridge trusses and roof support trusses and what type of foundation this would require.
NNW also provided engineering services associated with dredging and disposal of 62,000 c.y. of
lake silt at Kent Park.
REFERENCES
Johnson County Secondary Roads
4810 Melrose Avenue
Iowa City, IA 52246
Historic White Water Creek Bridge Relocation, City of Dubuque
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. Sand Road Bridge
. Johnson County
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P y Camp Road, Des
'" Moines County
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~ City of Davenport
.: For many years, NNW
Jill has provided bridge
. inspection services for
'- the City of Davenport's
!""" 39 bridges.
REFERENCES
Glen Wazny, PE
City of Davenport
1200 E. 46'h Street
Davenport, IA 52807
(563) 326-7711
Johnson County hired NNW to do a foundation design for a new bridge on a precast
superstructure. The bridge on Sand Road crosses over a tributary to the Iowa River. NNW
performed design calculations for the new 70' x 40' prestressed concrete inverted T bridge, with
three spans. We also prepared detailed plans, specifications and contract documents required for
an Iowa Department of Transportation formal letting.
REFERENCES
Allan Millers
Johnson County Secondary Roads
4810 Melrose Avenue
Iowa City, IA 52246
The existing county bridges were replaced with single span 32'-0 wide precast concrete beam
bridges. Both bridges are supported by pile bents and feature 27" deep x 48" wide precast
concrete deck beams with y," diameter strands prestressed to 28,900 Ibs. V-camp Road Bridge
spans 65'-0 and Walker Road Bridge spans 58'-0 with a 30 degree right-ahead skew. The deck
beams were over-Iayed with a three inch bituminus concrete surfacing. The project included
stream bed realignment and channel sloping.
REFERENCES
Des Moines County
13522 Washington Road
West Burlington, IA 52655
This project provided a new pedestrian bridge over a small tributary creek to Clear Creek in
Johnson County associated with the Tiffin Trail Project. Clear Creek can rise and fall quickly
during significant rainfall events. The project involved hydraulic analysis, designing new reinforced
concrete abutments, and installing a pre-engineered pedestrian truss bridge. The 60'-0 long
bridge spans over a creek with a 1.2 square mile drainage area. The project also required
obtaining Iowa Department of Transportation, Iowa Department of Natural Resources and Army
Corp of Engineers permits for work in a floodplain and tributary waterways. The purpose of this
project was to provide a safe pedestrian crossing of this scenic creek.
REFERENCES
Hart Frederick Consultants
510 E. State St; PO Box 560
Tiffin, IA 5340
City of Bettendorf
For many years, NNW
has provided bridge
inspection services for
the City of
Bettendorf's 20
bridges.
Scott County
For many years, NNW
has provided bridge
inspection services for
Scott County's 121
bridges.
REFERENCES
Sharon Smusal
City of Bettendorf
1609 State Street
Bettendorf, IA 52722
(563) 344-4055
REFERENCES
Jon R. Burgstrum, PE
Scott County
518 W. 4'h Street
Davenport, IA 52801
(563) 326-8640
Johnson County
For many years, NNW has provided bridge
inspection services for Johnson County's 213
bridges. Additionally, NNW has performed more
in-depth inspections of some of Johnson
County's bridges using special equipment to
access difficult areas. We have used a
"Snooper Truck" to inspect the cover plates of
the bridge's steel stringers and sound the
underside of the bridge deck.
REFERENCES
Greg Parker, PE
Johnson County Secondary Roads
4810 Melrose Avenue
Iowa City, IA 52245
(319) 356-6046
Historic White Water Creek Bridge Relocation, City of Dubuque
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~F.!CI<I"~""IilAa!tl""""''''''''' < '
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, Railroad Bridge over
, First Avenue
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2004 ACEC
Engineering
Excellence Grand
Conceptor A ward
2003 Iowa American
Society of Civil
Engineers
Outstanding Civil
Engineering Project
of the Year
· Summit Street Bridge
. Iowa City, Iowa
. New 165' long, 43'
. wide, three span steel
frame bridge over
. railroad,
.
. 2000 Iowa Quality
. Initiative award for
best steel beam
. bridge in the state of
Iowa,
.
. 1999 Iowa Quality
. Initiative Award Best
Steel Beam Bridge In
. Iowa
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The City of Coralville, The Iowa Department of Transportation, Iowa City, the University of Iowa
and the Iowa Interstate Railroad partnered to replace the old railroad viaduct with a new rail bridge
that greatly improves the efficiency and safety of train traffic over 1 st Avenue, and automobile and
pedestrian traffic on 1st Avenue, In addition to increasing traffic efficiency and safety, the new
bridge will also add architectural interest to the area.
The new 100-foot span railroad bridge Is lighted, the concrete columns veneered with Iowa
Limestone, and the terraced grounds around the bridge landscaped with flowering plants and
grasses.
This unique design of this bridge includes a composite ,multi-cell steel box girder. The exterior
webs are taller than the interior webs and the "folded" concrete deck forms the trough for the
railroad ballast and rails
REFERENCES
Dan Holderness, PE
City of Coralville
1512 7th Avenue;
PO Box 5127
Coralville, IA 52241
(319) 248-1720
i
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Its love of the arts and
its appreciation and
preservation of the "old"
make the Summit street
neighborhood very
unique, Adding to its
intrigue and charm is the
Summit Street Gallery
half a block away.
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This bridge is an inclined leg steel frame, which allowed for a thinner structure thus reducing the
impact on the approach roadways. The frame was made up of rolled steel beams, which reduced
steel fabrication labor cost In the center of the bridge are "bump-outs" and in the sidewalk
benches for people to watch the train switch yard nearby, a design idea that was born of the
residents themselves,
The finished product was the design of new 165-foot long, 43-foot wide, three-span steel frame
bridge. Project included 987 feet of urban approach roadway with storm sewer and utility
relocation.
REFERENCES
Denny Gannon, PE,
City of Iowa City,
410 E. Washington Street,
Iowa City, IA 52240,
(319) 356-5142
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Avenue
'Woolf
. Bridge
. Replacement of 4
. span
48'x205' concrete
. slab bridge.
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2001 American
Concrete Institute,
lowa- Minnesota
Chapter Concrete
Bridge Award
This project was
named ASCE Iowa
Project of the Year
for 1999.
Consulting
Engineers Council
Of Iowa Grand
Conceptor Award
1999 Iowa Quality
Initiative Award
For Best Slab
Bridge In Iowa
. Melrose Avenue
. over the Iowa
Interstate Railroad
. in Iowa City.
.
Replacement of
. 63'x210'
. steel stringer bridge
. with 45' skew.
.
. Other Info
13,000 vpd in
. addition to the
. football traffic
. This corridor is
.. heavily traveled by
,. pedestrians, bicycles
. and busses.
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1997 Iowa Quality
Initiative award for
best steel beam
bridge in the state
of Iowa.
Woolf Avenue is grade-separated from U.S. Highway 6 and the
CRANDIC Railroad. U.S. Highway 6 is the main arterial between
Coralville and Iowa City and carries 20,000 vehicles-per-day. The
existing Woolf Avenue bridge had deteriorated to the point that it
was posted for loads due to used up fatigue life and concrete
was falling onto the highway.
The City of Iowa City desired a bridge that would improve the appearance of this gateway to the city
and increase the 14.5-foot vertical clearance over Highway 6. The vertical clearance issue had
resulted in twice closing the bridge for expensive repairs. Driveways and a retaining wall near the
bridge fixed the existing Woolf Avenue grade. In addition, clear zone restrictions on Highway 6
affected span length as well. In order to incorporate the desired 16.5-foot vertical clearance, a thin
structure was required. With restrictions, a 71-foot span was required; however, the span was
reduced to 63 feet by tipping the piers inward. The piers have the effect of creating a colonnade as
one passes under the bridge. A 28-inch slab was used. A voided slab was utilized to reduce dead
load. The design also called for an impression of the Iowa City logo on four concrete end posts and
the words lOW A CITY on each side of the slab. Coordinating all the entities made this project very
complex. An 8-inch diameter water main was installed in one of the slab voids. Maintaining traffic on
Highway 6 made falsework installation difficult. The designers worked closely with the press and
local businesses to inform the pubiic of closures on Highway 6 and subsequent detours.
REFERENCES
Rick Fosse, PE
City of Iowa City
410 E. Washington Street
Iowa City, IA 52240
(319) 356-5100
This bridge is located adjacent to
Kinnick Stadium on the University
of Iowa Campus. Since the project
took a year to complete the football
season could not be avoided. Our
study of alternative detouring
determined that the most efficient
alternative was to stage
construction of the bridge.
Construction staging as well as elaborate traffic control was required for the 13,000 vpd in addition
to the football traffic. Since it also adjacent to the University medical complex, the corridor is heavily
traveled by pedestrians, bicycles and busses.
One end of the bridge is in University Heights, so the project required coordination of two Cities,
multiple departments of the University and a strong Neighborhood Association, each with a different
agenda. The project required many public hearings and information meetings most of which NNW,
Inc. organized and conducted.
The design included provisions for trunk telephone line, including fiber optic, supported on the
bridge without disruption of service. An 8" watermain and 6" high pressure gas main were also
attached to the bridge.
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REFERENCES
Rick Fosse, PE
City of iowa City
410 E. Washington Street
Iowa City, IA 52240
(319) 356-5100
Historic White Water Creek Bridge Relocation, City of Dubuque
8
Oakdale Blvd
Bridge, City of
Coralville, Iowa
1997 Iowa Quality
Initiative Award For
Best Concrete Slab
Bridge in Iowa
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. West Burlington
. Avenue Bridge over
. Burlington Northern
Railroad
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. 3-span, 225' long by
38' wide, steel frame
. bridge.
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1996 Iowa Quality
Initiative Structures
Award
1996 Consulting
Engineers Council
of Iowa Honor
Award
This bridge is located In
an area of very hard
limestone. When the
design of the bridge was
being considered and
upon site exploration we
found that this site rock is
located near the surface
with soft overbearing
material.
We looked at three different types of foundations: pile bents, spread footings and drilled shafts.
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Our experience with hard rock with a bridge over the Iowa River less than a mile away had
increased our understanding of possible impending challenges designing the foundation for this
project. The bridge over the Iowa River has spread footings on rock and due to the hardness of the
rock cofferdam construction was very difficult. Steel sheeting could not be driven into the rock,
which created a problem anchoring the cofferdam. This incident caused skepticism whether piling
could be driven into the rock enough to get sufficient toehold. Further research also indicated that
setting the piles in concrete-filled holes in the limestone was not cost effective.
Cost ruled out the option of using pile bents and spread footings as foundation design possibilities.
The only other option left was drilled shafts with rock sockets. The 12,000psi+ compression tests of
the rock indicated high bearing capacity for the shafts and since the cost and design challenges
were reduced, this was the option of choice.
The design of choice produced a 4-span concrete slab bridge, 225 feet long founded on drilled
shafts and skewed 45 degrees. The Muddy Creek Bridge is a vehicular bridge that accomodates
both at-grade and underpass pedestrian trail traffic. The bridge is a standard, concrete post and
beam bridge with aesthetically enhanced barriers, pedestrian railings and lighting. The construction
cost of this bridge wa $9,400,000 with aesthetic improvements costing $500,000.
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REFERENCES
Rick Fosse, PE
City of Iowa City
410 E. Washington Street
Iowa City, IA 52240
(319) 356-5100
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This 3 span steel frame bridge crosses the
busy Burlington Northern Santa Fe Railroad.
The piers are framed steel columns that are
set back from the railroad far enough to not
require crash walls. The framed legs helped
reduce the depth of the superstructure thus
reducing the approach slopes to the bridge.
The bridge is 38 feet wide and has one
sidewalk. It is 225 feet long.
REFERENCES
Historic White Water Creek Bridge Relocation, City of Dubuque
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, 5-span, 446' long by
40' wide, prestressed
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) Widening and
, Rehabilitation of
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girder bridge.
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This five span prestressed concrete beam bridge spans the Iowa River. It has 2 end spans of 85
feet and 3 middle spans of 95'. The piers are modified T piers, two of which are on piling and two
on spread footings on rock. The abutments are standard stub abutments. The bridge is 40 feet
wide and 465 feet long. .
REFERENCES
Alan Miller, PE
Johnson County Secondary Roads
4810 Melrose Avenue
Iowa City, IA 52245
(319) 356-6046
The old two-lane bridge was
. built in1949 and was billed in a
Lincoln Electric Publication as
the first "ail welded" plate
girder bridge west of the
Mississippi. The
superstructure was loaded
with E' welds on the main
girders.
Needless to say, the steel could not be incorporated into the widened structure. However, the
existing piers and abutments were used to support half of the bridge. The widening was
accomplished by staging the construction and keeping the bridge open to traffic.
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REFERENCES
Alan Miller, PE
Johnson County Secondary Roads
4810 Melrose Avenue
Iowa City, IA 52245
(319) 356-6046
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~ Iowa Avenue ~ . .',
~ Pedestrian Bridge,
~ Iowa City, Iowa
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L.-) 6th Street Bridge
-r City of Iowa City
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... 5-span, prestressed
.. concrete beam bridge
.., on concrete frame
.., piers with long pile
j foundation over
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"., Flaired bridge.
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This bridge carries 6 street over the busy BNSF Railroad and Valley Street in . downtown
Burlington, The bridge is a 3-lane, 5-span prestressed concrete beam structure with variable
width, It is a 376 feet long by 44 feet wide. It was built over a 100-year old stone arch storm sewer
that required careful monitoring of foundation installation,
REFERENCES
Denny Gannon, PE
City of Iowa City
410 E. Washington Street
Iowa City, IA 52240
(319) 356-5142
joints.
This 1962 bridge was built by the
Iowa DOT to provide a safe
crossing of U.S. Highway 6 for the
heavy pedestrian traffic generated,
primarily, by the University of Iowa.
The bridge is a framed concrete
girder with an integral deck. It
consists of three independent
structures separated by expansion
The 10-foot bridge deck includes railings, an 8'-6 walkway and 3'-6 high aluminum railings.
Over the last few years, the bridge began showing signs of distress such as concrete delamination
and spalling, The City of Iowa City hired NNW to perform an analysis to explore the options
available. The bridge deck was sounded and 3.5% of the slab surface area was found to be
delaminated. The unsound concrete is currently being removed and patched. Since the structural
integrity of the bridge is not compromised by the delamination or spalling, NNW recommended
using the Electrochemical Chloride Extraction method to remove the high concentration of chloride
and re-passivate the reinforcing steel. Upon completion of the ECE treatment, the bridge will be
coated with an overlay applied to the deck and the overhead areas to inhibit future chloride
infiltration,
This project Is an ECE research project funded by the Iowa Transportation Research Board,
REFERENCES
Rick Fosse, PE
City of Iowa City
410 E. Washington Street
Iowa City, IA 52240
Historic White Water Creek Bridge Relocation, City of Dubuque
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WORKLOAD AND COMMITMENT OF KEY STAFF
Each year NNW is awarded one to two major structural projects. which are added to our workload. Currently, we are in the
final design stages of two prestressed beam bridges for the City of Cedar Rapids. Also. we are wrapping up the Hale Bridge
Relocation Project and will soon be done with a tunnel reconstruction project for the University of lowa- project to be let in
January 2006.
Since NNW is accustomed to working on several major structural projects per year, assisting the City with the engineering of
the White Water Creek Relocation will not be a problem. We will have staff available to allocate resources to your project
without sacrificing quality or deviating from the desired schedule.
The personnel committed to completing this project were selected not only due to their expertise and experience. They were
also selected based upon review of their workloads and their ability to fully commit the required resources to help the NNW
team deliver a successful and affordable White Water Creek Relocation project.
As you can see, currently NNW has three
major projects that are in the final stages
of design and will soon be completed.
Therefore. you can be confident that the
White Water Creek Bridge Relocation
project will be given the priority it requires
to be completed successfully and on time.
SUMMARY OF MAJOR PROJECTS
Hale Bridge Relocation Project, Jones County, Iowa - NNW has
completed the design of the Hale Bridge restoration. The letting for this
project is scheduled for November 15, 2005. Construction of the abutments
will take place during the winter and will be compieted during the month of
March. At that time, the Hale Bridge will be airlifted by the Army Corps of
Engineers from its current storage location to the prepared site.
NNW will be available to supervise the completion of restoration and the
construction of abutments, certify restoration according to specifications
established in the restoration plan, ensure compliance with all regulations
dealing with lead paint issues associated with the project, and ensure
compliance with all rules, regulation and requirements associated with
Department of Transportation Federal Aid Projects.
33'" Avenue Over Crandic Railroad- In conjunction with Snyder and
Associates, NNW is finishing up the Final Plans for the design of two
prestressed beam bridges over the Crandic Railroad in Cedar Rapids, Iowa.
This project is presently in its final stages and will be completed soon. This is
our only bridge design work at this time.
University of Iowa, Tunnel Reconstruction- The tunnel reconstruction
includes removal and replacement of deteriorated and structurally deficient
concrete, including the top, sides, and floor of the tunnel. Also included is
replacement of deteriorated steel utility support members. Some tunnel
portions will be removed and restored to facilitate construction. This project
will be let January 2006.
PROPOSED PROJECT APPROACH
Moving a structure designed and constructed for a specific site and position creates many chaiienges. These chaiienges are
greater when trying to relocate a structure that was constructed over a century ago. Materiais available, manufacturing
techniques used and engineering expertise were different in the 191h century. However, the fact that this structure, the White
Water Creek Bridge, has endured this length of time and survived much inclement weather is a testimony to the public as to
its value and strength, and a tribute to its designers and fabricators. it is also compelling proof to its owners that this bridge
is worth saving, restoring and revitalizing for a new purpose and a new site.
As stated earlier, currently we are in the process of relocating an historic bridge that was designed and constructed around
the same time as the White Water Creek Bridge. The Hale Bowstring Bridge was manufactured between 1877-1879 by the
King Iron Bridge and Manufacturing Co. of Cleveland Ohio. It is comprised of three spans 81', 82' and 100'. The 81' and 82'
spans weigh around 41,000 pounds each with deck in place; and the 100' span weighs about 55,000 pounds with the deck in
place. As you can imagine, moving a structure of this size and of this weight is not easy. Furthermore, implementing the
method necessary to preserve the structural integrity of the bridge while in motion is a task of great undertaking. When
being removed from its original construction site to a staging site for repair, the Hale Bridge was moved using a truck with
the truck body extended the fuii length of each span. However, soon to be moved to its permanent location, the Hale Bridge
is going to be air lifted by the Army Corps of Engineers- a process that wiii pose its own unique chaiienges. With this current
experience at hand, you can be assured that we wiii assist the City of Dubuque in successfuiiy moving the White Water
Creek Bridge to its new location to serve its new purpose.
As part of our consulting services, NNW wiii visit the current and the proposed bridge location to assess any possible
problems. At this time we wiii gather survey information necessary to obtain floodplain permits required by the DNR and
Corps of Engineers.
NNW will perform a hydraulic analysis of the creek and submit aii forms required to obtain floodplain permits from the IDNR
and the Corps of Engineers. This process usuaiiy takes a few months; therefore, this work should be done first to ensure
the permits are in place prior to construction.
We plan to analyze the bridge superstructure using STAAD software to determine the loads in each truss member. Once
~ the loads are established further structural .analyses will. be performed to ensure each member has sufficient capacity to
withstand pedestnan loading and stresses Imposed dunng the move.
.. After the current condition of the bridge has been analyzed and assessed, we wiii prepare preliminary plans and a cost
~... estimate for future rehabilitation that will offer alternatives for any repairs needed. These repair options wiii be discussed
with the State Historic Preservation Office (SHPO) in Des Moines to ensure that neither the historical nor structural integrity
of the bridge are compromised or altered.
C One consideration that needs to be taken into account when repairing a bridge built in this time period, is the composition of
fa the metal superstructure. NNW wiii establish what type of metal was used to fabricate the bridge and then determine what
~ method of repair is suitable. Most bridges built during this time period are made of wrought iron, which poses a chaiienge
. when welding any additional members to it. Typical fillet welds cannot be used due to the fibrous nature of the wrought iron
it therefore other methods will be explored.
. NNW wiii prepare specifications needed to ensure safe transportation of the bridge to the new site. The specifications will
Ii explain to the contractor requirements for successfuiiy moving the bridge without causing any damage.
The new bridge abutments wiii be designed based on IDOT standards and modified as needed to fit the Historic White
Water Creek Bridge.
After the design is completed, NNW wiii produce an engineer's estimate that includes proposed cost and expense budgets
as weii as provide aii plans and specifications needed to bid the project.
NNW will help the client review the bids and advise on acceptance. After acceptance of a bid, we wiii conduct a pre-
construction meeting to set the project on track. We wiii also foiiow-up with progress meetings to keep aii parties involved
Updated on the progress, discuss any concerns that may surface and to ensure a timely project.
During construction of the abutments and moving of the bridge, NNW wiii be available to provide assistance for construction
inspection.
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Historic White Water Creek Bridge Relocation, City of Dubuque
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~ It is the City's desire to coordinate the White Water Creek Bridge Relocation project with the Bergfeld Recreation Trail
~ currently under construction. Based on this information and conversations with your planning department, it is our
. understanding that the City's proposed scheduie for this project is as follows:
. Mid to Late October 2005 Contract Awarded to Engineering Consultant
Early-Mid Winter 2005 Bid Letting
. Late Winter 2005 Abutment Construction Begins
. Spring 2006 Bridge Moving! Construction Compieted
. Summer 2006 Bridge ready to be used by pedestrians at Bergfeld Recreation Area
. In order to meet the City's desired schedule, provide the required engineering for relocating the bridge, apply for and obtain
. necessary permits and successfully relocate the bridge, NNW proposes the following schedule:
. October 24, 2005 Contract Awarded to Engineering Consultant
. November 14, 2005 Submit Hydraulics to DNR and Corp of Engineers
December 12, 2005 Preliminary plans ready for review for SHPO and City of Dubuque
t January 16, 2006 Plans ready for bid distribution
It The above dates are goals established by our engineers in order to meet your desired schedule. These dates may differ
It slightly if governing agencies issuing permits face delays. Aiso, if the City awards the project sooner or later than
It anticipated, this will cause the dates to fiuctuate. Awarding the project earlier in the month of October works in everyone's
favor as the engineers can prepare submittals and receive permits sooner.
It
lit is NNW's desire to work with the City of Dubuque on this important project. You can be assured that with NNW you will
receive quality engineering services that will translate into the successful and timely move of the Historic White Water Creek
. Bridge.
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PROPOSED PROJECT SCHEDULE
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Historic White Water Creek Bridge Relocation, City of Dubuque
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SCHEDULE OF RATES
NNW, INC.
ENGINEERING SERVICES
Provided For
CITY OF DUBUQUE
PROFESSIONAL COMPENSATION
The fee for professional services shall be a not-Io-exceed sum of $20,000 based upon the
following hourly rates for services by principals, employees, and sub-consultants assigned to the
project.
Description
Rate/Hour
1. LABOR
Principal Structural Engineer
$ 125.00
$ 110.00
$ 105.00
$ 95.00
$ 70.00
$ 65.00
at cost
Structural Engineer (Grade 6)
Structural Engineer (Grade 5)
Technician
Draftsperson
Clerical
Other Reimbursables
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Historic White Water Creek Bridge Relocation, City of Dubuque
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Cost Breakdown
Engineering Service
Cost
Survey
Hydrauiic Analysis
$ 1,000
$ 2,000
$ 1,000
$ 3,000
$ 3,000
$ 2,000
$ 3,000
$ 2,000
Permit Application Process
Superstructure Analysis
Preliminary Plans and Cost For Future Rehab
Specifications
Abutment Design
Engineer's Estimate, Proposed Cost and Expense Budgets,
Plans and Specifications for Bidding
Bid Tabulation and Meetings
$ 1,000
$ 2,000
Travel and Expense Reimbursements
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Historic White Water Creek Bridge Relocation, City of Dubuque
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