Zoning UD Bennet & Algona NW Corner
Planning Services Deparbnent
City Hall
50 West 13th Street
Dubuque, Iowa 52001-4864
(563) 589-4210 office
(563) 589-4221 fax
(563) 690-6678 TDD
planning@cityofdubuque.org
www.cityofdubuque.org
D~
~~~
March 9, 2005
,..-.."
I
The Honorable Mayor and City Council Members
City of Dubuque
City Hall - 50 W. 13th Street
Dubuque IA 52001
RE: Amend 10 District
Applicant: University of Dubuque
Location: Northwest Corner of Bennett & Algona Streets
Description: To amend the University of Dubuque 10 District to allow the construction
of a new academic and administration building.
\.',
Dear Mayor and City Council Members:
The City of Dubuque Zoning Advisory Commission has reviewed the above-cited
request. The application, staff report and related materials are attached for your review.
Discussion
The applicant spoke in favor of the request, reviewing the proposed new campus
building, new 130-space parking lot and property to be demolished to provide space for
the building and parking.
Staff reviewed history of zoning in this portion of the University of Dubuque campus and
noted provision of bioretention areas for the proposed parking lot.
There were several public comments regarding screening between the Hoppmann
property at 2224 Grace Street and the proposed parking lot. The speakers were
concerned about loss of privacy, noise and headlight glare. The Zoning Advisory
Commission received and filed a letter expressing concerns about the Hoppmann
property .
The Zoning Advisory Commission discussed the request, noting that the request is
consistent with standards for amending an Institutional District. The Commission
determined that the parking lot should be set back 50 feet from the Hoppmann property,
that a six-foot high solid wood fence should be constructed for screening along this
property, and there should be no access to Grace Street.
Recommendation
By a vote of 5 to 0, the Zoning Advisory Commission recommends that the City Council
approve the request.
Service
People
Integrity
Responsibility
Innovation
Teamwork
University of Dubuque ID District Amendment - Myers Academic Building
Page 2
A simple majority vote is needed for the City Council to approve the request.
21Ju-j
tn(l-
~ Sti e ,! Chairperson
Zoning Advisory Commission
Respectfully submitted,
n
1/
Attachments
D~
~~~
Oty of Dubuque
Planning Services Department
Dubuque, IA 52001-4864
Phone: 563-589-4210
Fax: 563-589-4221
PLANNING APPLICATION FORM
o Variance
DConditional Use Permit
DAppeal
DSpedal Exception
DUmited Setback Waiver
o Rezoning
~Planned District
OPreliminary Plat
OMinor Rnal Plat
[]Text Amendment
OSimpte Site Plan
OMinor Site Plan
o Major Site Plan
o Major Rnal Plat
DSimpte SUbdivision
.OAnnexation
[]Temporary Use Permit
OCertificate of Economic Non-Viability
DCertificate of Appropriateness
OOther:
Please tyoo or print leQiblv in ink
Property owner(s):
University of Dubuque
Phone:
689-3000
Addr~: 2000 University Av~: Dubuque
State:~ Zip: 52001
Fax Number:
Mobile/Cellular Number:
Applicant/Agent: Alan Burr, VO Finance & Auxiliary Ser\phone: 589-3710
Address:
2000 University Avenue
Oty: Dubuque
. State: ~ Zip: 52001
599-7883
Fax Number:
589-3352
Mobile/Cellular Number:
~re~tio~~r~: Block bounded by McCormick, Grace, Algona and Bennett St
Existing zoning: I D
Proposed zoning: I D Historic District:
Landmark:
Legal Desoiption (Sidwell pan:el 10# or lot number/bfock number/subdivision):
See attached
Total property (lot) area (square feet or acres): 3.239 acres
Desaibe proposal and reason necessary (attach a letter of explanation, if needed): See cover letter
Construction of new Academic/Administration Building and Parking Lot
CERTIFICATION: Ijwe, the undersigned, do hereby certify that:
L The information submitted herein is true and correct to the best of my/our knowledge and upon
submittal becomes public record;
2. Fees are not refundable and payment does not guaranree approval; and
3. All additional required written and graphic materials are attached.
. Property Owner(s):
Applicantlftgent: ~ -:;;;;;,~
Date:
Dare: J - 3/-0 ~
j. FOR OFFICE US
Fee:'" f,,~O_rJo Received by:
DSite/sketch plan DConceptual DeVel t Plan
ODesign review project description DFlcor plan
CATION SUBMnTAl CHECKUST
Date: 1- 3'-D S Docket:
o Photo Dlmprovement plans
OPJat DOther:
2285 BENNETT
Legal Description: LOT 2-1-2-14 ANN O'HARES SUB
2263 BENNETT
Legal Description: S 1/2 LOT 1-14 ANN O'HARES SUB
2263 BENNETT
Legal Description: S 1/2 LOT 1-14 ANN O'HARES SUB
2274 GRACE
Legal Description: N 1/2 LOT 1-14 ANN O'HARES SUB
2252 GRACE
Legal Description: N 1/2 - W 50' - W 100' - LOT 13 ANN O'HARES SUB
2250 GRACE
Legal Description: N 1/2 - E 50' - W 100' - LOT 13 ANN O'HARES SUB
2236 GRACE
Legal Description: ANN O'HARES SUB N 140' OF W 12112' OF LOT 12 ANN O'HARES SUB N 140' OF
E
2192 GRACE
Legal Description: EAST 50' OF N 1/2 OF E 56' OF WEST 118.06' OF LOT 12 ANN O'HARES SUB & W
6'
2160 GRACE
Legal Description: N 1/2 - E 50' - W 80.12' - LOT 11 ANN O'HARES SUB
2140 GRACE
Legal Description: N 1/2 - E 57.82' - LOT 11 ANN O'HARES SUB
2211 BENNETT
Legal Description: ANN O'HARES SUB S 125' OF E 50' OF S 1/2 OF E 56' OF W 118' OF LOT 12
LOT 1-1-1-S 1/2-10 ANN O'HARES SUB LOT 2-2-1-S 112-10 ANN O'HARES SUB
UNIVERSITY of
DUBUQUE
2000 University Avenue · Dubuque, IA 52001-5099
January 31, 2005
Kyle Kritz
Associate Planner
Planning Services Department
City Hal1
50 West 13th Street
Dubuque, IA 52001
Dear Mr. Kritz:
In order to better serve our students and to alleviate on-street parking o~ adjacent streets the University is
planning two major campus improvements.
The first is an addition and renovation of The Goldthorp Science Hall located at the corner of University
Avenue and Argona Street. The 21,163 square foot addition to the east of the existing building will house a
new Zoology lab, Cell/Micro Biology lab, Organic Chemistry lab, greenhouse, field support areas, storage,
other support services and restrooms. A glass walled atrium will serve as a connection between the new
addition and the renovated Goldthorp Science HaIl. Another addition of 1 ,406 square feet will serve as a
new entry at the main level of the building and a Nursing Media room on the third level. (see attached
images, floor plans and elevations) The renovated spaces within the existing building will convert many old
and out of date labs, auditoriums and classrooms into modem teaching and research fabs, faculty offices
and student interaction spaces. Since almost all of the classrooms and auditoriums in the existing building
will be converted to labs support areas and fliCulty offices the capacity of the fllCitity will be reduced thus
not requiring any additional parking per the city zoning code. (see attached parking table)
The second campus improvement is a new Academic and Administrative Building to be located at the
comer ofAIgona and Bennett Streets. The first floor of this new building will contain six new class rooms,
a seminar room and a one hundred seat auditorium. A suite oftweIve faculty offices will also be located
on the first level. The second level will feature a grand hall extending 35 feet high to a sky light atrium.
The University~s Admissions Offices will also be located on the second level. The third level wiII contain
suites for the Wendt Character Center Staft: University President, Registrar, Financial Aid, Student
Accounts, and University Relations. A 130 car parking lot to accommodate the increase in classroom
seating and faculty and staff oft ices is planned tor the west end of the block. 'This new parking lot will be
landscaped per city regulations to minimize impacts on the adjacent neighbors and lighted to ensure safe
use during evening and nighttime campus activities.
Per your instructions this letter is to serve as an application to amend the University1s ID district to include
these two building projects and the construction of the required parking lot. The University win be mailing
an information packet, which wiTI include a cover letter, site plans and perspective drawings of the projects
to 212 of Its neighbors in order to inform them of our plans and to ask for their questions and comments. I
will send you a copy of this information packet and will keep you informed as to any comments or
questions we receive.
School of Business · School of Liberal Arts · School of Professional Programs · Theological Seminary
If you have any questions please feel free to contact me at any time.
Cordially,
t2P~-:? Z~
Alan L. Burr
Vice President of Finance and Auxiliary Services
Enclosures:
Campus Location Flan 24"x36" (I)
Campus Location Pian 11"xl1" (4)
Goldthorp Flan Set 1 l"x 17" (4)
Academic/Administrative Site PIan 81!2"x II" (4)
Academic! Administrative Building Plan Set 1 r"x r 7" (4)
Image of Goldthorp Addition (4)
Image of Goldthorp Renovation (4)
Image of New Academic/Administrative Building (4)
C- D with image and Plan Files (I)
University of Dubuque Check for $650.00
c:
=6
~
co
c:
o III
~E
'-~
~(G
'c "S
..... (G
,%0
.c(e
-oel)
~~
o .'::
- ~
E-
el) Q)
~ct.
~c:
~~
Q) ~
zD-
Ol
(I")
\I
0'1
C
~
'5
CO
'0
c
o
U
~
~
I/)
c
o
()
o
.....
(\)
:;]
o
in
3
m
o
~
0-
W
g>
:g
(0
a..
'0
~
E
(\)
o
(0
0-
~
c
~
w
E
o
o
....
(/)
(/)
~
<3
(/)
~
~
0-
W
co
('.I
\I
<.0
to
<D
~
0'1
C
'Z'
~
(\)
w
"'C
(\)
-0
~
(i)
III
~
~
0-
W
<.0
<-
....
o
1.0
t-
u:)
<-
\I
1.0
r-
~
~
<.0
~
(i)
-0
C
~
Z'
"5
o
~
u..
~
0-
W
(I")
~
~
\I
0'1
C
~
'5
CO
g>
'~
&
....
o
.....
-0
(\)
....
'%-
(\)
~
g>
.~
....
(0
a..
S
o
r
-----------.-------
~---~------~-------- -
oj" If- ~ ~
-~' -~~ ~
~
o
.-
.....
In
>
~
G:i
....
(/)
(l)
~
..c
...
='
o
en
on
c
;a
-
'5
a:l
;- yr' ..:~'
c
.2
.....
~
(/)
.....
c
's
""0
<C
""0
C
ca
Co)
.-
E
~
"0
o:s
u
-<
.~
(l)
Z
"
~i
/
f-
~
-
o
t-
O -
:c to
n..g:
...J -
Z := z
oa:""
o UJ 0
z ~ ~ ...J
([ LL
"" U UJ
a:OU-
<I....JZlf)
n.. --
o z (/) 0
Z UJ 0
> _ 3: LLJ
Q-~W:)
=~aJ~g
::)Zt- en
ma:ww:J
Wa:::a:O
lJ)t-O:J
a: ..J _ ~ u..
W<Im~O
~ ..J ...J ~ >-
([ ([ t-
D.::>:JO-
~~~~U
OWuJ~L
~ !z! !z! ~ ~
a: 0 0 x u..
~iiD~
o
z
w
o
W
...J
/'
....
PLANNED DISTRICT STAFF REPORT
Zoning Agenda: 'March 2, 2005
Project Name: University of Dubuque new Myers Academic and Administration
Building
Property Address: 2000 University Avenue
Property Owner: University of Dubuque
Applicant: Alan L. Burr, Vice President of Finance/Auxiliary Services
Proposed Land Use: Education Facility
Proposed Zoning: 10
Existing Land Use: Residential
Existing Zoning: 10
Adjacent Land Use: North - Residential
East - Residential
South - Residential
West - Residential
, Adjacent Zoning: North - 10
East - R-1
South - R-1
West - 10
Flood Plain: No
Water: Yes
Storm Sewer: Yes
Total Area: 3.2 acres
Existing Street Access: Yes
Sanitary Sewer: Yes
Previous Planned District: Yes.
Purpose: To amend the 10 Institutional District for the University of Dubuque to allow
the construction of the new Myers Academic and Administration Building. The
construction of a 130-space parking lot is also proposed west of the new Myers
building.
Property History: The subject property has been part of the University of Dubuque
campus for over 30 years. Currently, all but three of the existing single-family
residences are owned by the University of Dubuque. However, all parcels are zoned
Institutional District.
Physical Characteristics: The subject property is bounded by Grace Street to the north,
Algona Street to the east, Bennett Street to the south and McCormick Street to the
west. The property generally slopes to the southwest.
Conformance with Comprehensive Plan: This project implements the
Comprehensive Plan's Land Use Element Goal 7.2, 7.3 and the Education Goals 8.1
and 8.4.
Planned District Staff Report - University of Dubuque
-Page 2
Staff Analysis:
Streets: No significant changes are proposed to either Algona Street or Bennett
Street as part of the construction of the new Myers Academic and Administration
Building. There will be two new accesses from the proposed 130-space parking lot
- one onto Grace Street near Smith Hall and the other access to McCormick Street
opposite the Finley Street intersection.
Sidewalks: As part of the construction of the new University building, sidewalks
along public streets will be replaced as needed.
Parking: The proposed new Academic and Administration building will result in the
loss of an existing 39 space parking lot. The University of Dubuque is proposing
the addition of a new 130-space parking lot to the west of the proposed academic
administration building. This will result in an increase'of 91 parking spaces in this
area of the campus.
Lighting: New outdoor lighting will be required to use cut-off light fixtures to reduce
impact to adjacent properties.
Signage: No signage has been proposed as part of this ID plan amendment. New
signs will be subject to Section 4-3.11 of the Zoning Ordinance.
Bulk Regulations: The layout of the proposed administration/academic building
and the proposed parking lot will be constructed in substantial compliance with the
adopted conceptual plan. The proposed academic/administration building will be
set back a minimum of 18 feet from Algona Street and 14 feet from Bennett Street.
Permeable Area (%) & Location (Open Space): Both the new administration
academic building and the proposed parking lot will increase the amount of
impervious area in this section of the campus. Storm water control will be part of
the site plan review for both these facilities. The University of Dubuque has
proposed a bioretention facility for the parking lot which will be reviewed in detail by
City Engineering staff at the site plan review stage.
Landscaping/Screening: Landscaping will be provided to screen the proposed
parking lot from adjacent property. Standard screening for a parking lot is three
feet in height and 50% opacity.
Phasing of development: None proposed.
Impact of Request on:
Utilities: Existing utilities are adequate to handle the proposed projects.
Planned District Staff Report - University of Dubuque
-Page 3
Traffic Patterns/Counts: Algona Street is designated as a collector street and
carries approximately 1,800 vehicle trips per day. McCormick Street is also
designated as a collector street; however, there are no counts available for that
street.
Public Services: Existing public services are adequate to serve the site.
Environment: Staff does not anticipate any adverse impact to the environment
providing adequate erosion control is provided during all phases of construction,
and adequate storm water control is provided as part of the development of the
proposed project.
Adjacent Properties: The proposed new Myers Academic and Administration
building will be a significant visual change to this portion of the University of
Dubuque campus. Across both Algona Street and Bennett Street are existing
single-family residential homes. The proposed parking lot will change traffic
patterns in this area of the campus. Additional vehicle trips could occur on Grace
Street as a result of students using the new parking lot. Adequate screening will
help buffer the parking lot from adjacent property.
CIP Investments: None proposed.
Staff Analysis: The University of Dubuque is requesting an amendment to their
institutional district to allow the construction of a new Myers Academic and
Administration Building at the northwest corner of Algona Street and Bennett Streets.
In addition, a new 130-space parking lot will be constructed immediately west of the
new building with access to Grace Street and McCormick Street.
The construction of the new Myers Academic and Administration Building will, in part,
occur over an existing parking lot with 39 parking spaces. The University of Dubuque is
proposing construction of a new parking lot with 130-spaces; thus, providing an
increase of 91 parking spaces in this area of the campus.
The new academic/administration building will be three stories in height when viewed
from the south and across Bennett Street and two-stories in height when viewed from
the north across Grace Street.
The proposed building will be located a minimum of 18 feet from Algona Street and 14
feet from Bennett Street. These setbacks are similar to other University buildings in the
area, including the Charles Myers Library, Severance Hall and Smith Hall. The
proposed building does include both classrooms and administration offices. Based on
existing parking requirements for the University of Dubuque, the additional students
would result in a requirement of 28 additional parking spaces. Faculty and staff
employment would require 46 additional spaces. When added to the number of parking
Planned District Staff Report - University of Dubuque
-Page 4
spaces being lost due to the construction of the building, which is 39, a total parking
requirement will be 113 spaces. As previously mentioned, the new parking lot will
provide 130 off-street parking spaces.
The construction of the new Academic and Administration building as well as the
proposed parking lot will result in the demolition of many of the existing single-family
structures located in the block bordered by Algona Street to the east, McCormick Street
to the west, Bennett Street to the south and Grace Street to the north. Only three
residences will remain which are owned by private citizens. These three homes are
addressed off Grace Street and will remain after development of the proposed facilities.
The proposed amendment to the University of Dubuque campus will increase the
impermeable area in this portion of the campus. The proposed new academic
administration building and parking lot will be reviewed through the City's site plan
review process. As part of that review, storm water control will be analyzed to ensure
that downstream properties are not adversely impacted by the proposed changes. The
University has proposed bioretention as part of the new parking lot. Bioretention is an
engineered process to control both the flow of storm water and the level of
contaminants. Attached to this report is a handout on bioretention.
Planning staff recommends that the Zoning Advisory Commission review Section 3-5.2
(D)(4) that establishes criteria for approval of institutional district amendments.
Prepared by: -p t ~
Reviewed: 1/ (II.
,
Date: 2-7Z-D>
Prepared by: Laura Carstens. City Planner Address: City Hall. 50 W. 13th Street Telephone: 5894210
ORDINANCE NO.
23 -05
AN ORDINANCE AMENDING APPENDIX A (THE ZONING ORDINANCE) OF
THE CITY OF DUBUQUE CODE OF ORDINANCES BY PROVIDING FOR THE
APPROVAL OF AN AMENDED CONCEPTUAL DEVELOPMENT PLAN TO
ALLOW CONSTRUCTION OF THE NEW MYERS ACADEMIC AND
ADMINISTRATION BUILDING FOR THE UNIVERSITY OF DUBUQUE ID
INSTITUTIONAL DISTRICT.
NOW, THEREFORE, BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY
OF DUBUQUE, IOWA:
Section 1. That Appendix A (the Zoning Ordinance) of the City of Dubuque
Code of Ordinances be amended by providing for the approval of an amended
conceptual development plan for the University of Dubuque ID Institutional District, a
copy of which is on file with the City of Dubuque Planning Services Department, for
property legally described to wit:
Lot 2-1-2-14 Ann O'Hares Subdivision; S % Lot 1-14 Ann O'Hares Subdivision; S
% Lot 1-14 Ann O'Hares Subdivision; N % Lot 1-14 Ann O'Hares Subdivision; N
% - W 50' - W 100' - Lot 13 Ann O'Hares Subdivision; N % - E 50' - W1 00' Lot
13 Ann O'Hares Subdivision; Ann O'Hares Subdivision N 140' of W 12 %' of Lot
12 Ann O'Hares Subdivision N 140' of E; East 50' of N % of E 56' of West
118.06' ot Lot 12 Ann O'Hares Subdivision & W 6'; N % - E 50' - W 80,12' - Lot
11 Ann O'Hares Subdivision; N % - E 57.82' - Lot 11 Ann O'Hares Subdivision;
Ann O'Hares Subdivision S 125' of E 50' of S % of E 56' ot W 118' of Lot 12; Lot
1-1-1-S 1/2 -10 Ann O'Hares Subdivision Lot 2-2-1-S %-10 Ann O'Hares
Subdivision, and to the centerline ot the adjoining public rig ht-ot-way , all in the
City of Dubuque.
Section 2. That pursuant to Iowa Code Section 414.5 (2003) and as an
express condition ot amending the University of Dubuque ID Institutional
District, the undersigned property owner(s) agree(s) to the following conditions,
all of which the property owner(s) further agree(s) are reasonable and imposed
to satisfy the public needs that are caused directly by the zoning
reclassification:
A. Use Regulations.
The following regulations shall apply to all uses made of land in
the above-described ID Institutional District:
Ordinance No. -05
University of Dubuque
Page 2
1. Principal permitted uses shall be limited to:
a. Colleges and universities [45]
b. Vocational Schools [45]
c. Seminaries [45]
d. Offices for administrative personnel or other
institutional employees and affiliates [14]
e. Churches [7], libraries, and museums [13]
f. Classrooms, laboratories, lecture halls, and similar places of
institutional assembly [45]
g. Off-street parking and loading [NA]
h. Recreational or athletic facilities for the primary use and
benefit of institutional residents or affiliates [7]
i. Single-family, two family [11] or multi-family dwellings for the
housing of institutional residents or affiliates [9]
2. Accessory Uses. The following uses shall be permitted as
accessory uses in the above-described ID Institutional District:
a. Located entirely within a principal building, bookstores, or
bars seating not more than seventy-five (75) persons at one
time and located not closer than two hundred feet (200')
from the nearest Residential or Office Residential District.
b. All uses customarily incidental to the principal permitted
uses in conjunction with which such accessory uses
operated or maintained, but not to include commercial use
outside the principal building.
3. No conditional uses shall be allowed.
[ ] Parking requirements as per Section D of this Ordinance.
B. Lot and Bulk Regulations.
Development of land in the ID Institutional District shall be regulated as
follows:
The proposed academic and administration building and associated 130-
space parking lot shall be constructed in substantial conformance with the
attached conceptual development plan and all final site development
plans are to be approved in accordance with provisions of the ID
Institutional District regulations.
Ordinance No. -05
University of Dubuque
Page 3
C. Performance Standards
The development and maintenance of uses in this 10 Institutional District
shall be established in conformance with Section 3-5.2 of the Zoning
Ordinance and the following standards:
1. That a 50-foot setback shall be maintained between the east edge
of the 130-space parking lot and the property at 2224 Grace Street.
2. That a six-foot high, fully opaque wooden privacy fence be placed
along the west property line at 2224 Grace Street.
3. That there be no access from the proposed 130-space parking lot
to Grace Street.
4. New outdoor lighting for the parking lot shall utilize 72-degree cut-
off luminaries.
5. Landscaping shall be provided in compliance with Section 4-5 of
the Zoning Ordinance.
6. All utilities including telephone and cable television shall be
installed underground.
7. Final site development plans shall be submitted in accordance with
Section 4-4 of the Zoning Ordinance.
D. Parkir;-g Requirements
The off-street parking requirements for the principal permitted uses for the
herein described 10 Institutional District shall be designated by a bracket
enclosed number next to the use, as herein described:
[9] 1.5 spaces for each dwelling unit
[11] Two spaces for each dwelling unit
[14] One space for each four hundred square feet devoted to office use
or one space for each employee on the maximum shift, whichever
is greater.
[7] One space for each four permanent seats.
[13] One space for each five hundred square feet of floor area
accessible to the general public.
[45] Dormitories - one space for each bed
Gymnasiums - one space for each six permanent seats
Employees - .75 spaces for each employee on the maximum shift
E. Open Space and Recreational Areas
Those areas not designated on the conceptual development plan for
development shall be maintained as open space, as defined by Section 8
of the Zoning Ordinance by the property owner and/or association.
Ordinance No. -05
University of Dubuque
Page 4
F. Si~::1n Reoulations
The sign regulations shall be the same as that which are allowed in the 10
Institutional District as established in Section 4-3.11 of the Zoning
Ordinance. .
G. Additional Standards
That all previously approved conceptual development plans are hereby
amended to allow for the attached conceptual development plan.
H. Transfer of Ownership
Transfer of ownership or lease of property in this 10 Institutional District
shall include the transfer or lease agreement a provision that the
purchaser or lessee acknowledges awareness of the conditions
authorizing the establishment of the district.
I. Modifications
Any modifications of this Ordinance must be approved by the City Council
in accordance with zoning reclassification proceedings of Section 6 of the
Zoning Ordinance.
J. Recording
A copy of this ordinance shall be recorded at the expense of the
property owner(s}. with the Dubuque County Recorder as a
permanent record of the conditions accepted as part of this
reclassification approval within thirty (30) days of the adoption of
this ordinance. This ordinance shall be binding upon the
undersigned and all his/her heirs, successors and assignees.
Section 3. That the foregoing amendment has heretofore been
reviewed by the Zoning Commission of the City of Dubuque, Iowa.
Section 4. That the foregoing amendment shall take effect upon
publication, as provided by law.
Passed, approved, and adopted this 21st day of March 2005.
A nEST:
~
eanne Schneider, City Clerk
ACCEPTANCE OF ORDINANCE NO. 23 -os
I, Reverend Jeffery F. Bullock, President, University of Dubuque, having read the
terms and conditions of the foregoing Ordinance No. 23 -05 and being familiar with
the conditions thereof, hereby accept the same and agree to the conditions required
therein.
Dated this 21 s t day of
March 2005.
BYRgzf?~
President, University of Dubuque
Rain Gardens of West Michigan - An introduction to bioretention
Page 1 of3
mi~B~~
An introduction to bioretention
What is Bioretention?
Definition: An engineered process to manage storm water runoff, using the chemical, biological
and physical properties afforded by a natural, terrestrial-based community of plants, microbes
and soil. Bioretention provides two important functions: (i) water quantity (flood) controls;
and (ii) improve water quality through removal of pollutants and nutrients associated with
runoff.
Bioretention as a Best Management practice
The principle of utilizing biological properties for the retention
and transformation of nutrients and pollutants is not new - it
forms the basis of agricultural and wastewater treatment
practices. However, the concept of bioretention described here
has the advantage of being on site, minimizing the distance
between the source of runoff (e.g. parking lots, roof tops) and
the site of control (e.g. rain garden), unlike end-of-pipe storm
water management practices. In effect, the strategic integration
of bioretention facilities into the landscape can result in smaller,
more manageable subwatersheds.
How Does Bioretention Work? Structure and Function
Bioretention facilities (rain gardens) may range from simple shallow depressions to more
complex designs, but all are structurally engineered to provide the following functions with
respect to stormwater quantity control: interception/capture, infiltration, filtration, storage,
and water uptake by vegetation.
The nine major components of the bioretention facility are:
. Pretreatment
. Flow Entrance
. Ponding Area
. Plant Material
. Organic Layer or Mulch
. Planting Soil and Filter Media
. Pea Gravel Diaphragm
. Underdrain and Outlet
. Surface Overflow
A recommended soil mixture of top soil (20-30%), leaf compost (20-30%) and coarse-grained
sand (50%) produces an ideal filter media to maximize infiltration, filtration and storage
(hydrologic loading) capacity. A key design aspect of a bioretention facility is its depressed
bowl-shaped topography, creating a "ponding area". This ponding area allows for surface
storage of runoff when the soil storage is capacity; promotes evaporation; and allows
sedimentation of particulate matter prior to infiltration. Further incorporation of an underdrain
(or outlet) and surface overflow element allows the engineer to construct a bioretention facility
that can handle the anticipated volume of storm water runoff in a given area. In fact,
bioretention facilities can be designed to handle not only peak discharges (e.g. the "first flush"
of spring thaw), but also the volumetric control of all storms by mimicking existing hydrologic
conditions.
http://~.raingardens.o~g/bioretentlon. php
02/22/2005
Rain Gardens of West Michigan - An introduction to bioretention
Page 2 of3
Chemical, Physical and Biological Processes
Bioretention attempts to reproduce the physical, chemical and
biological processes of the natural environment to create a more
efficient, on site, water treatment facility. The incorporation of
biomass (plants, mulch, soil) introduces biological processes and
cycles, not seen in conventional physical/chemical systems,
leading to the designation bioretention. With proper design,
these biological processes and cycles will be self-perpetuating
and low maintenance, adding new dimensions of not only water
quality control, but also water quality improvement.
The key processes are listed below: (Processes enhanced or
contributed by the biomass are identified with an asterisk)
. Interception*
. Infiltration*
. Settling (sedimentation)
. Evaporation
. Filtration*
. Absorption*
. Transpiration*
. Evapotranspiration*
. Assimilation*
. Adsorption*
. Nitrification*
. Denitrification*
. Volatilization*
. Thermal Attenuation*
. Degradation*
. Decomposition*
Water Treatment
Besides controlling water quantity, bioretention facilities can improve the quality of stormwater
runoff prior to discharge to streams or recharging of ground water.
Bioremediation
Bioremediation is a general term referring to a decontamination method utilizing the biological
and biochemical processes associated with biota (bacteria, fungi, plants) to clean toxic
contamination associated with pollution. Phytoremediation specifically refers to the use of
plants for decontamination. Both bioremediation and phytoremediation have been regularly
and successfully used in brownfields (commercial or industrial sites that have been abandoned
due to environmental contamination). Particular plants have the ability and tolerance to take
up high concentrations of toxic chemicals, and even processing some of these chemicals to
less toxic derivatives.
Now the same principles can be applied to the treatment of the pollution load of stormwater
arising from both "point" and "nonpoint" sources (e.g. sediments, nutrients, oil and grease,
heavy metals, pesticides, temperature etc.). Indeed, it is not much of a stretch of the
imagination to visualize stormwater runoff as a moving, fluid brownfield.
Nutrient Assimilation: The Nitrogen and Phosphorus Cycles
http://www .raingardens.org/bioretention. php
02/22/2005
Rain Gardens of West Michigan - An introduction to bioretention
Page 3 of3
Nitrogen and phosphorus are essentiat-nutrients: abundant in terrestrial ecosystems, but
limiting in aquatic ecosystems. Thus in excess, these nutrients are regarded as key pollutants,
leading to eutrophication of streams and lakes with the creation of anoxic (no oxygen)
conditions. Since fertilizers (a rich source of nitrogen and phosphorus) are dominant
component of storm water pollution, bioretention facilities have been specifically geared to
tackling the clean up of these nutrients. This is achieved by promoting the establishment of
natural and self-perpetuating nitrogen and phosphorus cycles within its biotic community.
Macroorganisms (e.g. plants) and microorganisms (e.g. bacteria and fungi) within the soil
horizon efficiently recycle nitrogen and phosphorus, helping to regulate the mass balance of
these nutrients.
For example, nitrogen-fixing and nitrifying bacteria (typically found in the root zone of plants)
convert nitrogen gas and ammonia into nitrates, a form of nitrogen that is highly soluble and
rapidly taken up and assimilated by plants. Conversely, denitrifying bacteria can convert
excess nitrates to a volatile form, which diffuses into the atmosphere. Decomposers (including
fungi) release nutrients from decaying material, making them available for plants. Also
phosphorus readily absorbs to inorganic and organic compounds containing iron, aluminum
and calcium, thereby reducing leaching into ground water.
Heavy Metals and Organic Pollutants
Bacteria and fungi found in the planting soil mix or organic mulch component of bioretention
facilities are very efficient at degrading organic pollutants, e.g. petroleum based solvents and
polyphenolic compounds. The mulch itself has been shown to have extensive ability to absorb
and thereby immobilize heavy metals. Also clay, a negatively charged (anionic) component of
the soil mix, is also efficient in absorbing and immobilizing pOSitively-charged (cationic) heavy
metals, nutrients, hydrocarbons and other pollutants.
How efficient is bioretention at removing pollutants?
Laboratory and field studies performed by the University of Maryland have shown that
bioretention is very efficient at removing heavy metals such as copper, lead and zinc, and
organic compounds such as ammonia and phosphorus (decreased by 60-80%). Also there was
a marked decrease in thermal pollution, a form of pollution often forgotten when dealing with
run-off. Unfortunately, the removal rates for nitrates were lower than ideal.
However, it is important to note that the ability of bioretention to handle different types and
degrees of pollutant loading is design-specific, and the different bio-chemical-physical
processes described above can be modulated to achieve the desired result. For example,
adding an anaerobic zone will promote the growth of denitrifying bacteria, which volatilize
nitrates. The latter design feature can easily be incorporated into a site where excessive
nitrate runoff is anticipated.
Author: Clinton Shane Boyd
References:
Prince George's County Bioretention Manual, Maryland
Images courtesy Prince George's County, Maryland
Rain Gardens of West Michigan
Saving the Great Lakes One Rain Garden at a Time
Copyright 2000-2003 All Rights Reserved
htto:/ /wwYf .raingardel!~.org/bioreteIltion. php
02/22/2005
Mar 01 05 01:3Gp
.Jean Donovan
414-476-7690
p.2
Jean Donovan
2324 M.enomonee River Parkway
Wauwolosa. WI 53226
fD)rg@~OW~rm
lf1) MAR - 1 2005 ~
March 1. 2005
CITY OF DUBUQUE
PLANNING SERVICES DEPARTMENT
Mr. Kyle Kirfz and the Zoning Advisory Commission
Dubuque. Iowa 5200 1
Dear Mr. Kirtz and Members:
I am writing to represent my Mother. Helen Hoppmann. who resides at 2224
Grace street. This regards the 130 car parking lot the University of Dubuque
wishes to place immediately next to her home of 60 years.
When my parents moved into this home after WWII. the area was zoned
residential and homes abounded there. The University managed to rezone it
institutional some time ago over the objection of the residents. Now with only 3
residential homes left on this block. we are asking you. as the advisory board. to
protect and assist the remaining few.
While we are not here to stand in the way of the University's progress. we do
expect the progress to go hand in hand with respect for the well-being of my
Mother's quality of life at her residence.
Therefore, we are not here to stop the building of the parking lot. The University's
hands would be tied without it and we are generous on this issue. We do.
however. require 3 relatively minor concessions which would cause the University
minor inconvenience but result in significant preservation of quality of life for
Helen.
1. The parking lot would be located no closer than 40 feet to Helen's lot line.
2. Entrance and exits would be from Bennet street. No homes exist here to
be disturbed.
3. A 6 foot solid. opaque. stockade fence be installed from Grace to Bennet
lined with 4-6 foot Nigra Arborvitae to soften the institutional look and
provide a huge sound and light barrier.
It is important to note that for an approximate 6 month time period, the lot
abutting my Mother's property was used unofficially as a parking lot by the
University and its students. This resulted ha substantially reduced quality of life
for Helen including:
. cars entering and existing at high speeds all hours of the day and night
. car lights darting through kitchen. front room and bedroom windows
. engine noise. noxious fumes and Sleep disturbance
. inability to open windows. use the patio or back yard
We thank you for your help in this very important matter.
Ai cerely.. / . :?f!
..~, ,4.~"""~L fl~/,- 9<' &-7.
'-11'-/ -'IP~ --3'1')/ <1;
()
.-
Ol ~
C (J)
~ .0
CIl "'()3-"" ell
_ ._ CIl ::> 0 -
_ _ ~C~ - -
'::' g '0 .\12 III C CIl ':9, "0
~..v .g 'G) CIl 0 '0 ,g 6-'S .J
O C ell -!'; 0 tIS ::> dl 91 ,.
_.... __C- .tl ell - ~
~o 0 CIl "0 CIl 0 ti ::> - '.sa w
_ () CIl C::> +< ._ 0 CIl (0 "0
~. ?; .....,\::l CIl 0" g .S ~ Q.. 3
._ .~ t (J) ~ 1. ~ ~ '0 "0 "0 0
c: CIl ! ~ 0::> C III ~ CIl CIl dl
._ .~ 1::. 0 \- 0 0 "0 ell ell ell ell
(.) C oell _<.>c 'G) 0 0 s
._ ? _ -::;. .' 0 CIl III ::> 0.0 % .c
_ ... \5 ?;s:;, <.> 'c - - .9.
~ \ ~ ~ ~.~ 'i~ 0::>.0.. .0.. o'~
d .- ~ - 0 ~_:::::."
~ w- (J). tUtU
_ 0. <.> C CIl C <.>
~ ~ .sS O?,Slll
~.. ,;:-:r-el. l~~" "lfJ \'I ~ ~ ~ ,,,\'>., ]~"lR 'I 1J~ ~ j[] m~~CI
"~(1 \1;:;, ... /t"-- <-"~ a~::,:;4; ~ ,~_ ~I[ff-g J/~ ~rwt~ at;
~~O~~~~ 1\"'"0 0 ~ "". ~ f aU'"
\ ~ ~""'" .~ ~ if' ~ ~ 0 '" ~~ L-i t~ I'P'TF-\ ~1fff I D
~~ ,,' ,. .., r; ""'0 0 ~ ~ \' - F=tII ~~ oC:f) ~ ....IJ' h ~
\} ~I r:/~I-!$I/~ 'F.:, ~D ,-0 i Q f:fHIOl1~i ~ \ tffi ttcl---f-
~ of'. Wfz.~:::'- - "" ~ 0 ---"'- co ' 1 /1fl i ~" ~
~ ,; ~~ "- " '" 0 _' ~ ! C 8 ~ ~
~~ f/~ =- '-- >::~ ; ~~ ~ ~~ 0..:.: D"- ... ~y ~~.
~ <:::, " """ ~ ~ ":1 ,. "-'L!'i -JJJn- t. t!~
~.e. ~ '";m 0 ~ ~ . ':;tl~~ ~ 31rlm!~ol on r ~~1.! t.
@E=T1Trl o~~L - ~ ~
.~ ~~~~P;{-L~~ ~".... -~" ,,~
~~~ ~'" /t<;. 0 P 0 <
~~~ "'~~~~o 7' )
~~,~" v~ ~~~ .==-~a [g
~,,~ CO ~1IIt'~IQ: ~~
J ~~ ~\ t~ ~ '%C ~ ~ (2j~ IL~ ~ toJl
:'~:;. ~~\\, ~~~< J~ 11 '0~~~ ~~~ ~:::.- Fri rl
_ ~ '" 'Ill'-"" \,,~~. 1\' ~~ ~,
-<I ,~....y
>1-
S 4
~r
(,)
0.
./