HomeMy WebLinkAbout2008-12-30 NAC Planning ReportFEE:
BACKGROUND
Attached for reference:
Exhibit 1:
Exhibit 2:
Exhibit 3:
Exhibit 4:
Exhibit 5:
Exhibit 6:
NORTHWEST ASSOCIATED CONSULTANTS, INC.
4800 Olson Memorial Highway, Suite 202, Golden Valley, MN 55422
Telephone: 763231 .2555 Facsimile; 763.231 .2561 planners@nacplanning.com
PLANNING REPORT
TO: Eric Johnson
FROM: Scott Richards
DATE: December 30, 2008
FILE NO: 798.04 — 08.03
Oak arl Heights — City Hall and Public Works Facility:
Application for Conditional Use Permits, Site Plan Review, and
Design Guidelines Review
Plan Cover Sheet (A0.0)
Boundary and Topographic Survey (02.01)
Demolition Plan (C1)
Paving Plan (C2)
Grading Plan (C3)
Erosion Control Plan (C4)
ENCLOSURE
Randy Engel, representing Buetow and Associates, has made application on behalf of
the City of Oak Park Heights for the construction of a new City Hall building and
expansion of the Public Works facility. The application consists of requests for
conditional use permit for open and outdoor storage, a conditional use for proof of
parking, a conditional use permit for building height, site plan, and Design Guidelines
review. The project is to be completed in two phases, the first to construct the City Hall
and Public Works expansions, outdoor storage areas, and associated driveway. The
second phase would involve demolition of the existing City Hall building and
construction of the entry driveway, traffic circle, and much of the parking adjacent to the
new building.
The property is zoned 0, Open Space Conservation n in which city halls and their
accessory structures and uses are a listed permitted use.
Exhibit 7:
Exhibit
Exhibit 9:
Exhibit 10:
Exhibit 11:
Exhibit 12:
Exhibit 13:
Exhibit 14:
Exhibit 15:
Exhibit 16:
Exhibit 17:
Exhibit
Exhibit 19:
Exhibit 20:
Exhibit 21:
Exhibit 22:
Exhibit 23:
PROPOSED PROJECT
ISSUES ANALYSIS
Utility Plan (C5)
Engineering Details (C6)
Engineering Details (C7)
Landscape Plan {L1.0}
Site Plan (A1.0)
City Hall Existing Floor Plan {A2.0}
City Hall Proposed Lower Level Floor Plan {A2.1}
City Hall Proposed Main Level Floor Plan (A2.2)
City Hall Proposed Roof Plan (A2.3)
Public Works Proposed Floor Plan (A2.4)
Public Works Proposed Roof Plan (A2.5)
City Hall Exterior Elevations {A3.0}
City Hall Exterior Elevations (A3.1)
Public Works Exterior Elevations (A3.3)
Lighting Plan (EPA)
Comments of the City Arborist
Comments of the City Engineer
The City Council, in May 2008, passed a resolution authorizing the issuance f bonds to
fund the construction f a new City Hall facility which will replace the 35 year old
building located at 14168 Oak Park Boulevard. A Citizens Advisory Committee was
appointed by the City Council t look at options and provide recommendations n the
building and facility needs of the City.
The project architect, Buetow and Associates, and the project engineer, Larson
Engineering, have provided site and building plans for review. The project will require a
conditional use permit for open and outdoor storage, for building height, for proof of
parking, , as well as site plan and Design Guidelines review. The footprint of the new
City Hall will include 13,640 square feet on the first floor and 11 ,697 square feet on the
lower level. It will include offices for city Administration and the Police Department,
meeting space, a Council chambers, storage space, and garage space in the lower
level. The Public Works garage will be expanded to a 5,996 square foot facility. The
existing City Hall will be demolished. shed. f that building, a 484 square foot water pump
house will remain.
The site and grounds will be updated with new parking, trails, and landscaping. A
Public Works storage area and a City impound lot will be located at the west side of the
site and are to be totally enclosed by fence and landscaping,
Comprehensive Plan* The Proposed Land Use Map of the 2008 Comprehensive Plan
indicates the City Hall property and the area to the north as Government Facilities. The
2
map the Comprehensive
Flan were adopted by the City Council at its December
23, 2008 meeting. The new City
Hall and Public Works facility improvements will be
conforming with the Comprehensive Plan.
d surrounding open areas are zoned 0, Open Space
Zoning. The City Hall a �
Conservaion. Municipal structures and buildings, as well as parks and recreational
facilities, are a listed permitted use. The Public Works facility and water pump house
�l�
are existing accessory structures on site.
Area and Building Size Requirements.
City Hall Property — 0, Open Space Conservation
Required Lot Area
5 acres
Required Lot Width
200 feet
Re uired Buildin Hei ht
35 feet
Cit y Hall Property — 0, Open Space conservation
keired Front `�'ar
50 feet
Required Side Yard
30 feet
euired dear Yargi
50 feet
SETBACKS - ACCESSORY BUILDING — PUBLIC WORKS GARAGE
Required Side Yard
5 feet
R uired Rear Yard
8 feet
SETBACKS — CITY HALL
Existing Lot Area
17.8 acres
r Lot vidth
200 feet +++
Proposed Buildi Heig
n ht
Main Structure — 24 feet
Rotunda — 40 feet
Propo F ron t Yard
City Hall A
Pro Side Yard
30 feet + ++ on all sides
Pre r ea r Ya rd
300 feet +1-
Proposed SideYard
35 feet (west)
Pro osed Rear Yard
400 feet +--
SETBACKS — PUBLIC WORKS STORAGE AND CITY IMPOUND LOT
Re uired side Yard
0 feet
3
Ero•se Side Yard
Public Works Storage — 20 feet
City impound L t— 23 feet
The new City Hall building, the addition to the Public Works facility, the Public Works
storage, and City impound lot will meet all Zoning Ordinance setback requirements.
Parking. City halls are considered as office buildings for the purpose of calculating
parking requirements. The Zoning Ordinance requires "three (3) spaces plus at least
one space for each two hundred (too) square feet of floor area.'
Main Level
Lower Level (Parking
Area Subtracted)
Total
13,640 square feet
11,697 square feet
25,337 square feet
25,337 X .9 = 22,803 4- 200 = 114 + 3 = 117 parking spaces required
The site plan indicates the following parking to be provided:
Surface Parking
Parking Garage
roof of Parking
Parking stalls Provided
56 stalls
8 stalls
54 stalls
118 stalls
Section 401.15.F.9,00 of the Zoning Ordinance allows the City Council to approve a site
plan with proof of parking by conditional use permit. The site plan indicates the area
that has been reserved for the 54 stalls of proof of parking. If the stalls are needed in
the future, the parking area can be expanded to meet the demand at that time.
The site would require five accessible parking stalls. The site plan indicates five
accessible stalls, all of which are van accessible.
Open and Outdoor Storage. Open and outdoor storage is allowed as a conditional
use permit in the Zoning Ordinance. The City impound lot will be located on the west
side of the City Hall site. It will be enclosed with an eight foot solid fence constructed of
a Trek composite wood. The area will be 72 feet by 65 feet and accessed by a gate on
the south side. The Public Works storage area is located to the south of the impound
lot and is proposed to be 40 feet by 74 feet. It will also be enclosed with an eight foot
solid fence. The gate would face east. Both of the enclosure areas would be
landscaped, especially to the west, adjacent to the existing Pine Grove Garden
development. Additionally, there are existing trees that will provide screening,
especially for the Public Works storage area.
City staff has reviewed the list of conditions for a conditional use permit found in Section
401.03.A.7 of the Zoning Ordinance and finds no adverse effects of granting the
conditional use permit for the open storage areas. The areas will be adequately
screened by a solid fence, existing trees and landscaping.
4
Site Access /Trails. The site will be accessed via Oak Park Boulevard, a two -way
street, and west bound only from O'Brien Avenue just as it is today. Vehicles entering
the site will be able to enter a parking area and the City Hall from both access points
from a traffic circle. The Public Works facility and the lower level of the City Hall would
be accessed off a separate entrance off of Oak Park Boulevard. The City Hall is
provided with a main parking area and another traffic circle which allows for disability
parking, short term parking, and a drop off area. The driveways and turnaround area
design shall be subject to review and approval of the Police Chief and Fire Marshal.
Trail access through the site will be re-routed to accommodate the new building, parking
areas, and driveways. The trail from Oak Park Boulevard will extend through the site to
the east side and up to the existing trail. A trail access will also be provided to the Pine
Grove Garden neighborhood to the west. A sidewalk will extend from the front of City
Hall, to the drop off area, the parking area, and to the rear of the Public Works building.
Impervious Surface /Rain Garden /St rmwat r, The total impervious surface
coverage of the site after construction will be 15 percent. A large rain garden is
incorporated into the drainage plan and it will be located just to the west of the City Hall
building. The stormwater plan for the project is subject to review and approval of the
City Engineer and the Middle St. Croix Watershed Management Organization.
Utilities. A utility plan has been submitted and shall be subject to review and approval
of the City Engineer.
Trash /Generator Enclosure. The trash /generator enclosure servicing the City Hall
and Public Works would be located on the north side of the Public Works garage. The
enclosure would be constructed of the same brick as is used on the garage and on City
Hall. Metal gates would be provided on both the west and north sides.
City staff suggests that the enclosure be moved approximately five feet to the west in
order to allow landscaping on the east side of the enclosure. This may depend on the
location of a fiber optic line in this area. The landscaping would reduce the visual
impact of the enclosure from the City Hall and parking area.
Lighting Plans.
Fixtures, The submitted photometric plan indicates 14 freestanding fixtures on 16 foot
poles with 36 inch concrete bases. A final fixture design has not been determined, but it
will likely be a hat box or shoe box design that is fully cut off. City staff suggests
eliminating the 36 inch concrete bases wherever possible, by placing the fixtures further
from the curb and using taller poles if necessary. The maximum height above the
ground grade permitted for light sources mounted on a pole is 25 feet.
Lighting is also proposed under the soffit of the building. The final design of these lights
and their locations have not been determined but the fixtures will be fully recessed.
5
Intensity. The submitted photometric plan meets the Zoning Ordinance requirements
for lighting intensity.
Location. The ordinance requires the light source of an outdoor light fixture to set
back a minimum of five feet from an interior side lot line. All of the proposed fixture
locations would meet this requirement.
Hours. Outdoor lighting for parking lots shall be turned off one hour after closing,
except for approved security lighting.
Landscape Design. The landscape plan shall be subject to approval by the City
Ar cri t, The comments of the City Arborist are found as Exhibit 22. In addition to
those comments, please find comments of City staff:
Rain Garden. The rain garden element is an effective way to treat stormwater runoff in
addition to educating the public. These gardens are not only aesthetically pleasing but
functional as well. This might be a great opportunity to add an interpretive signage
element that outlines educational and interesting rain gardentrmwater facts.
Traffic Circles. The two traffic circles give opportunity for a vertical element, whether
that be landscaped or public art. According to AASHTO Roundabout Design
Guidelines, center landscaping is an important part of a roundabout design to provide
visual awareness of the traffic circle. The available space in the center would allow for
perhaps a hardy ornamental tree and shrubs, flag pole or public art piece, or any
combination of all three.
Bollards. , The traffic circle bollards could be enhanced aesthetically from the currently
specified concrete filled tubes. There are several examples of off the shelf" catalog
bollards that include interesting metal work in a variety of colors and shapes.
Trash Enclosure. The trash enclosure located south of the rain garden could be shifted
to the left to allow additional space for landscaped elements in front of the trash
enclosure wall. This would screen an otherwise vertical blank trash enclosure wall.
Signs. The building plans indicate only one wall sign at the front of the City Hall
building. The sign reads" City of Oak Park Heights" and is a total of 25 square feet.
The signage for a public facility in the 0 District is not allowed to exceed 60 square feet.
The sign will be lilt with ground mounted directional fixtures in accordance with the
Zoning Ordinance standards.
Additional directional signage may be added to the Public Works building. When
proposed, the signage shall be subject to approval of City staff. The City may also
decide to add additional directional signage at the first traffic circle to direct vehicles to
the City Hall and the parking areas.
Building Type and Construction.
6
Quality. The proposed City Hall building meets the quality standards of the ordinance,
which states that buildings in all zoning districts shall maintain a high standard of
architectural and aesthetic compatibility with surrounding properties to ensure that they
will not adversely impact the property values of the abutting properties or adversely
impact t the public health, safety, and general welfare.
Colored building elevations will be provided at the Planning Commission and City
Council meetings. The exhibits, as attached, provide detailed elevations with all of the
material types identified.
Exterior Finishes. The exterior of the City Hall structure will feature a stone veneer at
the front entrance with a majority rity f the building covered in brick. A rotunda feature will
emphasize the front entrance. There is significant detailing in the brick and around the
windows that breaks up the larger facades. The windows will be a pre - finished
aluminum window system and the roof a metal standing seamed system.
The final exterior colors of the building have not been finalized, but the initial material
selections have been neutral colors that are consistent with the Design Guidelines. All
exterior colors will be subject to review and approval of the City Council. The Public
Works s garage and the water pump house are to be resurfaced in the same brick as
used for the City Hall.
Mechanical Equipment. All of the mechanical equipm nt for the City Hall and Public
Works facility shall be enclosed in the building structures or enclosed by screening
walls.
agilcling .._. Height. For principal buildings (City Hall), the building height maximum
allowed in the 0 District is 35 feet. For accessory buildings (Public Works), the building
height is 17 feet with the approval of the Building Official. The main City Hall building
will be 24 feet in height when measured from the medium building elevation at the
ground to the mid point of the gabled roof. The building height measurement is
compliant with the Zoning Ordinance. The rotunda is 40 feet to the peak of the roof
from the medium building elevation. The Zoning Ordinance requires a conditional use
permit if a structural element of the building exceeds the maximum height of the building
by more than five feet. The rotunda element is about eight feet above the ridge of the
building and 16 feet above the measured height of the building. A conditional use
permit is required for the rotunda element. City staff has reviewed the requested
building heights in light of the requirements for a conditional use permit found in Section
401.03.A.7 of the Zoning Ordinance, and finds no adverse impact of granting the
conditional use permit for the building height.
The additions to the Public Works building will be 16 feet in height. The existing water
pump house is 11 feet in height. There are no height issues with either of the accessory
buildings.
7
RECOMMENDATION AND CONCLUSION
Based upon the preceding review, City staff recommends approval of the conditional
use permits for open and outdoor storage, for proof of parking, for building height as
well as approvals of the site plan and Design Guidelines review subject to the following:
1. The City Council shall approve the final materials and colors of the fencing and
gates for the City impound lot and the Public Works storage area.
2. The driveways and traffic circle design shall be subject to review and approval of
the Police Chief and Fire Marshal,
3. The story water plan for the project shall be subject to review and approval of the
City Engineer and the Middle St. Croix Watershed Management Organization.
4. The utility plan shall be subject to review and approval of the City Engineer.
5. The trash /generator enclosure shall be moved approximately five feet to the west
in order to allow additional landscaping. The final location of the enclosure is
subject to the location of a fiber optic line.
6. The City Council shall approve the final fixture design for the parking lot lights.
The concrete base heights shall be minimized to less than one foot in height.
7. The city Council shall consider options for the two traffic circle islands, including
trees, landscaping, flag poles, or public art piece.
8. The traffic circle bollards shall be of a decorative design.
9. The City Council shall determine the final building design, materials and color
selection.
10. The landscape plans shall be subject to review and approval of the City Arborist.
11. Any additional signage proposed for the site or buildings shall be subject to
review and approval of City staff.
12. Any other conditions of the Planning Commission, City Council, and City staff.
8
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Julie Hultman
From: K.O. Widin [kdwidin@comcast.net]
Sent: December 29, 2008 2:25 PM
To: Eric Johnson; Mark Vier lin (E-mail); Dennis PoaUer(E-moi|); Scott Richards; Jimmy Butler;
Judy Hoist; Julie Hultman; Tom Ozzekz; michaellueth@buetowarchitects.com
Subject: Revised Landscape Plan OPH City Hall Project
OPH Staf '
| have reviewed the revised landscape plan for the new OPH City Hall Changes have been made regarding the
potential problems | pointed out in my review of12/1O/Q8. These changes include moving the trail away from the existing
large oak SW of the Pub. Works Bldg., changing oaks specified on N and S ends of main entrance walkway to a smaller
statured tree (Jap. tree lilac) because of constricted rooting areas, and adding language regarding removal of twine and
upper courses of wire basket from root bali prior to filling in pIanting hole. 1 accept these changes to the plan and planting
detail.
Kathy Widin
OPH Arborist
1
EXF1tRT ,j /j2 ��
Julie Hultman
From:
Sent:
To:
Subject:
OPH Staff M
C.D. Widin Ekdwidin@comcast.net
Thursday, December 18, 2008 8:28 AM
Eric Johnson; Mark Vierling E- mail); Dennis Po tler (E-mail); Scott Richards; Jimmy Butler;
Judy Hoist; Julie Hultman; Tom Ozzello; michaellueth@buetowarchitects.com
OPH City Hall Landscape Plan & Tree Protection
I have reviewed the site and landscape plans submitted for the construction of the new City Hall. h have the following
comments, , most of which f shared at the site review meeting yesterday:
1. The site plan shows one large oak in the SW corner of the project of the entrance road) to be removed and the other
to be saved. The plan also shows a curb on one side and a trail on the other side, both within the branch spread of the
tree to be preserved. Having excavation and construction activity within the branch spread will make it difficult to save the
oak. In the meeting, re- routing of the trail was discussed, and this would help a lot. Also, any additional distance that the
curbing can be moved away from the trunk on the NE and E sides would be good.
2. The plant material chosen for the landscaping looks good. Most are native or improved cultivars of native plants. One
exception is 'Little Princess' spire a, but this is an excellent landscape plant, so that will work for this project.
3. The design overall looks good, and will complement the site and building. The use of a rain garden near the building
will not only help with runoff from the site, but will be a good educational piece for residents and others visiting City Hall.
4. l commend the use of oaks in the landscape plan (Oak Park Hts, ), but recommend a couple things:
a. the oaks are currently shown in rows - this would be an issue if one of them contracted oak wilt disease, which
spreads
by root grafting underground, as well as by insect transmission to fresh wounds in the spring. Alternating the oaks
with
another species would probably be better from the disease standpoint. I understand the design concept, and the
situation of
oak wilt in these trees is a long shot, particularly if the oaks are not pruned during April 1-July 1, the most susceptible
period
for insect transmission. l mention this possibility as a plant pathologist, and to make the City aware of all issues;
however, I
will not reject the plan if the oaks remain as depicted.
b. the oaks at the south end of the walkway from the entrance to City Hall are shown planted in an area possibly 15 ft. in
diameter or less, due to infrastructure. This size area is too confining for the root system of the oaks and smaller
stature trees, shrubs, or perennials/grasses should be planted in these locations instead of large stature trees such as
oaks.
c. the trail on the east side of the City Hall comes down to the entrance road and also will constrict the rooting area
of oaks planted on the east side of the entrance sidewalk, especially the southernmost ones mentioned in 4b.
5. Planting Detail - this looks o.k. except that I would like to see points in the diagram added:
a. twine should be removed from base of trunk and top of burlap pulled back before back- filling
b. the top of the wire basket (if any) on the root ball of B &B material should have the top 1/3 removed before back -
filling
the planting hole
(planting method will be checked and trees will need to be re- planted if 5a & 5b are not completed before planting)
I have forwarded the Tree Protection Standards for OPH to Mike Lueth. These describe the requirements for tree
protection during construction. If you have any questions regarding this review or report, please contact me.
Kathy Widin
Arborist
City of Oak Park Heights
1
December 23, 2008
M: Eric Johnson
[]\y Administrator
City of Oak Park Heights
14168 Oak Park B|vd, P.O. Box 2007
Oak Park Heights, MN 55082-2007
Re: City Hall Site
Plan Submittal
8nnestroo File No.: 55/gen
Dear Eric:
We have review the plans dated December 12, 2008 for the City Hall Site as submitted by
Buetow & Associates. Following are our cornrnents and/or recommendations
DRAWING C1
1. Call out number 12 is shown on the existing building; however, it is not identified in the
Demolition Key Notes.
Z. The existing water service at the south end of the existing building is in bold print, but it
is not identified with a call out,
3. The City Arborist should provide comments/recommendations in regards to the tree
removals.
DRAWING C2
1. Dram tile shall be placed in any pavement sections that have a sand subbase.
Z. Consider adding a walk/pathway around the north/northeas side of the proposed PW
storage yard to connec to the sidewalk to city hall This wiii provide pedestrians from
the Pine Grove Gardens area a more direct access to city hall.
DRAWING C3
1 Show drainage arrows and label percent slopes.
2. Identify the slopes as ratios in the pond area and other restored areas (ex. 4:1).
3. Identify the locations of the emergency overflows.
2335 Highway 36 'V
St. Paul, MN 55113
Tel 651-636-4600
Fax 651-636-1311
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Engineering
Planning
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City of Oak Park 1
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4. Provide more grading detail /spot elevations at the following locations:
-Trash enclosure
- Sidewalks (cross slopes)
- Curb cuts at pedestrian ramps.
- Concrete stoops
Page
12-23-08
5. At the southwest corner of the impound lot the proposed grade is 948.18 and the
elevation to the east is at 947.0 for a slope of approximately 8%. Is it possible to flatten
this grade?
DRAWINGS S 5
1. The slope on the sanitary sewer shall meet the Minnesota State Plumbing Code
4715.2400. For an 8" pipe the required slope is 0.52%
2. As discussed above, drain tile shall be placed in pavement sections with a sand subbase.
At a minimum, the drain tile shall be placed at the low points and extend 20 feet in each
direction from the catch basin.
3. The storm water reports states that there are Type D soils in this area. Will there be
drain tile around the footings of the structures? If so, show elevation of the drain tile,
locations and discharge locations.
4. Insulation shall be placed at all water main /storm sewer crossings.
5. Verify with the Public Works director that the submerged pipe on the outlet structure is
acceptable. If the submerged pipe is approved it should be increased to ." to provide
area for sediment build -up.
6. Provide a separate submittal that identifies the drainage path of the pond discharge.
Verify that the storm water is not impacting any commercial or residential areas.
7. Under Note 5 the class of RCP shall be changed to Class V for all 12", 15" and 18" RCP.
8. Under Note 11 it should state that any DIP sanitary sewer shall be poly lined.
9. Note 14- The City of Oak Park Heights does not officially have standard specifications;
therefore specifications will be required for this project.
GENERAL COMMENTS
., The drawings are missing items such as structure /invert elevations, callouts,
structure schedule, details, etc... A more detail review will be performed as the
construction documents progress.
2. The following items should be submitted for review:
- Rational Calculations for storm sewer.
- Response comments from Middle St. Croix Watershed Management Organization
- Final Geotechnical Report
3. The storm water report discusses a Bio-Retention Basin. Where is this located on the
site?
4. Verify with the Middle St. Croix Watershed Management Organization that the
proposed 9600 cf discharge into Wetland C is acceptable.
City of Oak Park !'Hilts
City Hall
The plans will require further review when items discussed in this letter are submitted. If you
have any questions or require additional information, please contact me at (651) 604 -4788 or
Dennis Postie at (651) 6O4 -4815
Sincerely,
BON TROO
Karen S. Erickson, P.E.
cc: Tom Ozzello, Public Works Director
Jim Butler, Building Official
Scott Richards, City Planner
Mark Vier ling, City Attorney
Randy Engel Buetow & Associates
DMP, CWL-2, File --- F3on stroo
Page 3
12,23-08