HomeMy WebLinkAbout5.b. Birger Pond Study /
CITY OF ROSEMOUNT
EXECUTIVE SUMMARY FOR ACTION
C1TY COUNCIL MEETING DATE: August 16, 1994
AGENDA ITEM: Birger Pond Study AGENDA SECTION:
Old Business
PREPARED BY: Bud Osmundson AGENDA ��R � � � �
City Engineer/Public Works Director i�
ATTACHMENTS: Drainage Study; Statistical Sheet; APPRO : ���
Resolution
City Staff has been investigating solutions to an outlet to Birger Pond for the past 3'/2
years, Earlier this year the consulting firm of OSM was charged with the task of looking
at alternatives for a permanent and temporary outlet for water collecting in the basin
known as Birger Pond. The Drainage Study is attached along with a one page sheet of
statistical information regarding the Birger Pond Drainage District.
The Birger Pond Drainage District is comprised of land within Rosemount and Apple
Valley. The total area which will ultimately drain to Birger Pond is approximately 626
acres of which 87% or 545 acres is within the City of Rosemount. In the 1989 City of
Rosemount Drainage Plan, Birger Pond was proposed to be a "dead end" pond without an
outlet with an ultimate high water level of 904. The water elevation in 1990 was
approximately 890.6.
The Drainage Study reviews four different alternative outlets for a permanent solution to
controlling the water elevation of Birger Pond. Two of them would ultimately outlet into
the City of Apple Valley with further outletting to the south through Lakeville and Empire
Township until the water would reach the Vermillion River. Other alternatives
investigated would pump the water easterly within Rosemount and would allow the City
many options as the area known as the Kelly property and others develop. Staff is
recommending that we continue to look at temporary solutions for controlling the water
elevation in Birger Pond whiie we address the permanent solution in a Feasibility Report.
The Feasibility Report would also address financing alternatives and cost sharing
responsibilities.
Staff has had many meetings with the City of Apple Valley Staff regarding this issue. We
feel that it is a shared responsibility for the ultimate solution to Birger Pond. Therefore
Staff is recommending that a Feasibility Report be ordered.
RECOMMENDED ACTION: MOTION TO ADOPT A RESOLUTION RECEIVING THE BIRGER
POND DRAINAGE STUDY AND ORDERING THE PREPARATION OF A FEASIBILITY REPORT
FOR BIRGER POND STORMWATER OUTLET IMPROVEMENTS, CITY PROJfCT #262.
COUNCIL ACTION:
3
BIRGER POND
DRAINAGE AREA STATISTICS
DNR PROTECTED WETLAND NO. 19-224W
CITY OF ROSEMOUNT COMPREHENSIVE PLAN NO. BIR142 -
POND EVALUATIONS
1990 TOPO Map 890.6
HWL Proposed in 1988 Comp. Plan 904.0
Highest Measured Elevation (October, 19931 898,8
Elevation as of August 8, 1994 895.6
DNR OHW Elevation 895.9
DRAINAGE AREA
Total Watershed Area 626 Acres
(Based on Ultimate Development)
Area within Rosemount 545 (87%)
Area within Apple Valley 81 (13%)
POND AREA
Area Lower than 904.0 36.3 Acres
within Rosemount 27.0 Acres -
wi#hin Apple Valley 9.3 Acres
Note: City of Rosemount already owns 10.9 acres; approximately 10 acres under
904 elevation.
r
CITY OF ROSEMOUNT
DAKOTA COUNTY, MINNESOTA
RESOLUTION 1994 -
A RESOLUTION RECEIVING THE BIRGER POND DRAINAGE STUDY AND
ORDERING THE PREPARATION OF A FEASIBILITY REPORT FOR
BIRGER POND STORMWATER OUTLET IMPROVEMENTS
CITY PROJECT NO. 262
WHEREAS, "Birger Pond" is a low point ponding area designated in the 1989 City of
Rosemount Drainage Plan; and
WHEREAS,increasing water elevations in Birger Pond could damage adjacent properties; and
WHEREAS,the City Council is concerned with controlling the water elevation of Birger Pond;
and
WHEREAS, a Study investigating the Birger Pond Drainage District has been completed.
NOW THEREFORE BE IT RESOLVED,
1 . The Birger Pond Drainage Study is hereby approved and ordered placed on file in the
office of the City Clerk.
2. Staff is directed to prepare a Feasibility Report to analyze funding sources and a
permanent outlet for Birger Pond.
ADOPTED this 16th day of August, 1994.
E. B. McMenomy, Mayor
ATTEST:
Susan M. Walsh, City Clerk
Motion by: Seconded by:
Voted in favor:
Voted against:
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� DRAINAGE PLAN UPDATE
BIRGER POND :
� FOR THE CITY OF ROSEM4UNT
,
OSM FROJECT NO, 51b2.10
�
AUGUST, 1994
�
�'
�
CERTIFICATION
� I hereby certify that this plan, speci�cation or report was
prepared by me or under my direct supervision, and that I am
a duly Registered Professionai Engineer under the laws af the
�' State of Minnesota.
� �/L�''�'V`' .
rian J. Bourassa, P.E.
�
Date: August 11, 1994 Reg. No. 21816 -
�
�
�
�
� OSM Project No. S 1b2.10 page i
�
�helen
� Mayeron&
Associates,Inc.
300 Park Place Center
5775 Wayzata Boulevard
� Minneapolis,MN 55416-1228
612-595-5775
1-800-753-5775
FAX 595-5774
� Engineers
August 12, 1994 Architects
Planners
Surveyors
�
Honora.bie Mayor and City Council
City of Rosemount
� 2.87'S - 145th Street West -
Rosemount, MN SS�S8
� Ret Drainage Plan Update
Birger Pond District
� Rosemount, MN
4SM Project No. 5162.10
Dear Mayor and Council Members:
�
Enclosed is the Drainage Plan Update for the Birger Pond Di�trict. This report reviews and
� updates the existing Comprehensive Drainage Plan for the Birger Pond District and provides
a discussion of possible stormwater outlets for Birger Pond.
� We would be happy to discuss this report with you at your conv�nience. Please call me at
595-5694 if you have any questions.
� Sincerely,
ORR-SCHELEN-MAYERON
� & ASSOCIATE INC.
�i1.�.��
� Brian J. Bourassa, P.E.
Project Manager
� ' Enclosures
� c: Bud Osrnundson, City of Rosemount
�
�
�
� e:�s�Qa.�o�cmt�cn�s�asi2�.crr
Equat Opportunity Employer
�
�
� TABLE OF CUNTENTS
� TTTLE SHEET
CERTIFICATION
� LETTER OF TT2ANSIVIITTAL
� TABLE OF CONTENTS
EXECUTIVE SUMMARY
� 1. INTRODUC'I'ION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1. Initiation 1
� 1.2. Purpose 1
1.3. Data Available l
�; 2. EXIS'TING SYS'I'EM INF4RMA'I'ION . . . . . . . . . . . . . . . . . . . . . . . 2
3. HYDROLOGIC/HYDRAIJLiC ANAI.YSIS . . . . . . . . . . . . . . . . . 3
�
4. IMPROVEMENT AL'TERNA'TIVES . . . . . . . . . . . . . . . . . . . . . 4
4.1. Temporary Stormwater Outlet 4
� 4.2. Permanent Stormwater Outlet b
5. SUMMARY, CONCLUSIONS AND RECOMMENDATIONS . . . . . . . . 16
_�
APPENDIX
� Figure 1 Drainage Area Map
Figure 2 Improvement Alternative Map
� Figure 3 DNR Hydrographic Survey Report
Figure 4 Executive Summary - Drainage Plan Update Shannon Oaks District
Figure 5 Memorandum- Limiting Discharge Rate SHA and BIR Districts
� ' Tabie 1 Drainage Requirements (19�9 Gity of Rosemount Drainage Plan)
Table 2 Preliminary Cost Estimate - Alternative A
� Table 3 Preliminary Cost Estimate - Alternative B
Table 4 Prelinunary Cc�st Estimate - Altemative C
Table 5 Preliminary Cost Estimate - Alternative D
� Table 6 Preliminary Cost Estimate - Alternative E
Table 7 Preliminary Cost Estimate - Alternative F
�
-�----OSM Project No. 5162.10 � Page ii
�
�
�
� �XECLITYVF SUMMARY
The purpose of the Birger Pond District Drainage Plan Update was to review the
� eacisting Drainage Plan for the Birger Pond District and to develap a plan for providing
temporary and permanent stormwater outlet scenarios for Birger Pond
� The results of the Draina e Plan review indicate that in the existin develo ment
g � P
condition, the critical 104-year event would produce a high water level{HWL) in Birger
� Pond (BIR 142) of 902.2. As development occurs in the Drainage District and when the
starmwater from the Shannon Oaks District is discharged into Birger Pond(see Shannon
� Oaks District Drainage Plan Update), the estimated HWL will become 908.0. The
Birger Pond HWL in the developed condition is unacceptable because the adjacent
existing homes and yaxd areas would be flooded.
�
Severai altematives were analyzed for providing temporary and permanent stormwater
� outiets at Birger Pond.
Alternative F is the recommended permanent stormwater outlet altemative which
� consists of the following:
� F-1 Construct a lift station at Birger Pond that pumps stormwater to Daly Pond(DAI.
129)
:`�� F-2 Construct a lift station at Da1 Pond that um s stormwater to the Armo Site
Y P P rY
Pond (SCH 153).
�
F-3 Construct a gravity storm drain from the Armory Site Pond to Erickson Pond
� (ERN 190).
F-4 Construct a lift station at Erickson Pond that pumps stormwater to the area north
� of the Business Park.
The total estimated project cost far Alternative F is $2,758,500. However, Alternative
�
F can be constructed in segments. In the existing development canditions,only Segment
F-1 will need to be constructed (estimated project cost for Alternative F-1 =
� �1,199,000.00
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---�--OSM Project No. 5162.10 - Page iii
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� The cost of the project is proposed to be recovered through assessments and the Trunk
Starmwater Utility Fund. Construction could begin in the fall of 1994 with completion
in the summer of 1995.
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� L INTRODUCTION
� 1.1. Initiation - This drainage plan update for the Birger Fond District was
initiated by City Staff as a result of the increasing starmwater levels in
Birger Pond (Pond BIR 142). At this point no building structures have
� been inundated, however, the stormwater level in the pond has continued
to rise for the past several years. There is currently no stormwater outlet
� for this basin nor is there a stormwater outlet proposed for this basin in
tlze City's Comprehensive Drainage Plan - 1989.
� i.2. Purpose - 1'he u ose of this stud is to review and update the City's
P rP Y
Comprehensive Drainage Plan as it relates to Birger Pond and to provide
� staff with information relating to temporary and permanent stormwater
outlet scenarios for Birger Pond.
� _
1.3. Data Available The followmg rtems were used to prepare the Buger
Pond District Drainage Plan Update:
�
- City of Rosemount Drainage Plan - 1989
� - Dakota County G.I.S. Mapping
- OSM Field Survey of Birger Pond
- Hydrocad Stormwater Modeling Software
'� - Record Drawings of Existing Storm Sewer in the Birger Pond
Drainage District
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OSM Project No. 5162.10 Page 1
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� 2. EXISTING SYSTEM INFORMATION
�- The Birger Pond Drainage District is shown on Figure 1 in the Appendix of this
report. The total drainage area for the district is appro�cimately 560 acres. 'The
majority of the Birger Pond Drainage District has rolling tenain and is developed
� with one-fourth acre residentiallots.
The primary area of flooding concern in the Birger Pond Drainage District is
� Birger Pond. There are several existing homes adjacent to Birger Pond
(Birchview Terrace and Country Hills Addition) that would be affected if Birger
� Pond were to flood.
� Birger Pond is the low point for the Drainage District and is defined as a
landlocked pond in the 1989 City of Rosemount Drainage Plan. Birger Pond ,
has been identified by the Department of Natural Resources(DNR) as protected !
� wetland 224W. The DNR performed a survey of Birger Pond on May 24, 1994
and found that the water surface elevation was 897.46. A copy of the DNR
� Hydrographic Survey Report is included in the Appendix of this report. The 1989
Drainage Plan lists the data for Birger Pond as foliows:
� - Normal Water Level (NWL) - 888.3
- High Water Level (HWL) - 904.3
- Pond Storage - 270 Ac-Ft.
�
Based on a review of the Birger Pond Drainage District with City Staff and in
� order to maintain the stormwater pond within existing drainage easements,it was
determined that the HWL for Birger Pond should be 897.6.
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---�---OSM Project No. 5162.10 - Page 2
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� 3. HYDROLOGIC/HYDRAULIC ANALYSIS
As stated in Section l of this report, the stormwater levei in Birger Pond has
� continued to rise over the past several years. The analysis for this report
reviewed the entire watershed and developed possible improvement altematives
� for providing a stormwater outlet for Birger Pond.
The Shannon Oaks Drainage District is located to the north of the Birger Pond
� Drainage District and cantains approximately 479 acres. In January, 1994 an
update to the Comprehensive Drainage Plan for the Shannon Oaks Drainage
� District was completed by OSM. A copy of the Executive Summary for the
Shannon Oaks District Drainage Pian Update is included in the Appendix of this
� report. The recommended alternative for providing flood protection in the
Shannon Oaks Drainage District was to install a lift station and forcernain system
capable of pumping 2 cfs at Pond SHA 75. With the recommended improvement
� alternative,the lift station and forcemain system at Pond SHA 75 would discharge
into the Birger Pond Drainage District and ultimately into Birger Fond. When
� analyzing ultimate stormwater outlets for Birger Pond, we assumed a discharge
rate from the Shannon Oaks District into Birger Pond of 2 cfs.
� When the drainage district reaches its ultimate development, if the stormwater
outlet for the Shannon Oaks Drainage District is constructed and Birger Pond
� remains a landlocked pond, the estimated HWL in Birger Pond would become
908.0. This HWL elevation assumes that when the critical rainfail event occurs,
the stormwater elevation in Birger Pond is at its NWL(888.3). If the stormwater
� elevation reaches 908.0, elcisting yard areas and homes will be inundated.
� Included in the Appendix of this report is a memorandum from Peter
Willenbring, OSM, reiating to the impacts of limiting the discharge rate from
� Birger Pond. In that memorandum, it was stated that a reasonable stormwater
management scenario for the Birger Pond system would require a discharge rate
of 8 to 15 cfs. When analyzing possible permanent stormwater outlets for Birger
� Pond, we assumed a discharge rate of 8 cfs from this basin.
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OSM Froject No. 5162.10 - page 3
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� 4. IMPROVEMENT ALTERNATTVES
4.1. Temporary Stormwater Outlet - Until a permanent outlet can be
� constructed, it may be necessary to pump stormwater frorn Birger Pond
into nearby low areas to provide ternporary flood protection for the
� a:djacent e�sting homes. We reviewed the topographic mags for the area
and determined that the nearest low areas that may have capacity to
handle stormwater pumped fram Birger Fond are BIR 139, 138 and 137,
� and the low area directly to the north of Birger Pond.
� The available storage and pumping distance for the Iow areas near Birg�r
Pond are listed as follows:
� Available Storage Pumping D�stance
Low Area (Ac-Ft) (L�
� North of BIR 142 74.1 (BIR 142 to North)
BIR 139 2.1 200 (BIR 142 to BIR 139)
� BIR 138 22.3 440 (BIR 139 to BIR 138)
BIR 137 4.7 170 (BIR 138 to BIR 137)
�
� Each of the available storage volumes listed above assumes that when the
stormwater pumping begins at Birger Pond, the water elevation in the low ar�a
� is at its normal water elevation and the pumping ends when the water elevation
in the low area reaches its overflow elevation.
� We also assumed that the elevation of the stormwater in Birger Pond is at its
high water level (HWL) 897.6 when the temporary stormwater pumping begins.
� The temporary stormwater pumping to the above-listed 1ow areas will have the
following affect on the water elevation in Birger Pond.
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� -�----OSM Project No. 5162.10 - Page<4
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� Pumping From Water Elevation in Birger Pond
Birger Pond Tos Atter Pumping
� North of BIR 142 895.0
North of BIR 142 and
� BIR 139 894.9
North of BIR 142, and
� BIR 139 & 138 894
North of BIR 142, and
� BIlt 139, 138 & 137 893.8
� Additional grading to construct a dike and a larger temporary pumping storage
basin could be completed in the undeveloped a.rea to the narth of Birger Pond
The construction of a dike in this area would enable additional stormwater to be
� pumped from Birger Pond to lower its water elevation in the temporary pumping
scenaria
�
Each of these pumping scenarios are o�ly temporarysolutions for controlling the
HWL at Birger Pond. Each of the temporary pumping storage basins are
� ; landlocked (as is Birger Pond). Therefore, if stormwater from Birger Pond is
pumped into each of the identified basins until they are full, no additianal
� stormwater can be pumped from Birger Pond until evaporation and infiltration '
have resulted in the lowering of the water levels in the temporary pumping
� basins.
If temporary pumping for controlling the HWL at Birger Pond is determined to
� be the ultimate solution, drainage easements {approximately 50 Ac @
$25,000/Ac = $1,250,000) will need to be acquired at each of the temporary
� storage basin locations.
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-�-,,..-OSM Project No. 5162.10 - Page �
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� 4.2. Permanent Stormwater Outlet=Using the maximum allowable HWL's,the
critical storm events, and the ultimate development conditions, several
stbrmwater improvement altematives were reviewed regarding the Birger
, Pond stormwater outlet. A location map showing the alternatives that
were reviewed and project cost estirnates for each of the alternatives are
� included in the Appendix of this report. The following are descriptions for
each of the altematives reviewed and their results:
� Alternative A Lit� Station Pumped to Apple Vall�y Gravei Pit:
� Imprnvement: Construct a lift station at Birger Pond capable of pumping
8 cfs. The farcemain would be installed from Birger Pond to the south
� along Diamond Path in the boulevard area. The forcema:in would
terminate at Dodd Boulevard and flow in a gravity storm drain to the
gravel pit in Apple Valley (AP-3) located south of CSAH No. 42.
�
Estimated Project Cost = $1,Q14,044 (Includes $30,000 for easement
� acquisition).
Discussion: The lift station and farcemain construction could take place
� within existing easements and right-of-way in the City of Rosemount.
However, approximately 3,200 feet of gravity storm drain will need to be
� constructed along Dodd Boulevard within the City of Apple Valley.
Negotiations will need to be made with the City of Apple Valley for
construction of the storm drain system in this area and for discharging the
� stormwater into the gravel pit. Discussions have taken place with the City
of Apple Va11ey regarding this alternative, however, at this tirne, it is not
� known whether there is any available stormwater capacity at the Agple
Valley gravel pit. With this alternative, there may be future financial '
� obligations from the City of Rosemount for cost participation in t�e
construction of a stormwater outlet for the Apple Vatley gravel pit.
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� -�-�..--OSM Project No. 5162.10 - Page 6
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� Alterna#ive B Lit� Station Pump+ed to doint System with Farquar
Lake - Upgrade Apple Valley System:
� Imprnvement: Construct a lift starion at Birger Pond capable of pumping
8 cfs. The forcemain would be jacked across Diamond Path from Birger
� Pond to the Fazquar Lake system located in Apple Valley. The Birger
Pond forcemain could be coruiected to the Farquar Lake forcemain
downstream€ram its lift station. From the forcemain connection point to
� the outlet at the gravel pit in Apple Valley, the Birger Pond and Farquar
Lake systems would be combined. Modi�ications would be required to the
� existing lift station,forcemain and gravity storrn dra.in system that provides
an outlet for Farquar Lake in Apple Valley.
� Currentl the outlet for Far uar Lake is a 7 cfs lift station that dischar es
Y� q 8
to the gravel pit located south of C.S.A.H. No.42 {the same gravel pit that
� Birger Pond is proposed to discharge to in Altemative A). It will be
necessary to modify the existing lift station at Farquar L�ake to enable it
� to operate simultaneously with the Birger Pond system. The �xisting
outlet includes a�proximately 7800 feet of 12-inch and 16-inch forcemain,
570U feet of 24-inch to 30-inch gravity storm drain and a pond. The
, majority of the eacisting outlet piping is located within developed
residential areas. A portion of the existing forcernain could be utilized;
� however, approximately 3,800 feet of the 12-ineh forcemain will need to
be replaced with 16-inch forcemain. It will als4 be necessary to construct
a gravity storm drain parallel to the existing gravity line for its entire
� length in order to provide the additional stormwater autlet capacity �
required with the 8 cfs pumped from Birger Pond.
�
Estimated Project Cost = $1,233,000 (Includes $45,0� for easement
� acquisitionj
Discussions Although the lift station and the majority of the forcemain
� system would be constructed within an existing easement or right-of-way,
temporary easernents will be required along the entire length of the
� construction. A.s with Alternative A, negotiations will need to be made
with the City of Apple Valley for construction of the storm drain system
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---�--OSM Project No. 5162.10 - Page 7
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, within their City and for any modifications required on their existing storm
drain lift station at Farquar Lake.' The potential for �nancial obiigarions
also exist from the City of Rosemount f4r cost participation in the
! construction of a stormwater outlet for the Apple Valley gravel pit
� Two additianal variations on this permanent storrnwater outlet scenario
may want to be considered:
, L Construct a avity storm drain outlet fram Farquar Lal�e to B' er
� �
Pond and construct a single large iift station at Birger Pond into
� the Apple Valley forcemain and gravity storm drain systern as
described above, the existing forcemain and gravity storm drain
� outiet system located within Apple Valley wiil need to be upgraded
2. Construct a lift station and foreemain system at Birger Pond
� capable of pumping 8 cfs into Farquar Lake. Remove the existing
'i cfs lift station at Farquar Lake and replace it with a 15 cfs lift
� station. As described above, the existin� forcemain and gravity
storm drain outlet system located within Apple Valiey will need to
be upgraded.
�
Alternative C Litt Static�n frnm Birger Pond to Daly Pond (DAL
� 129), Lift S#ation from Daly Pond to Pond ROS 155
and Gravity Storm Drain from R4S 1S� to Pond
MUR 170:
�
Improvement: This alternative would construct an outlet for Birger Pond
� flowing to the east entireiy within the City of Rosemount. There are three
separate segments involved with this alternative:
� ` Se ment l From Bir er Pond to Dal Pond
g g Y
Segment 2 From Daly Pond to Pond ROS 155
� Segment 3 From Pond ROS 155 to Pond MUR 170
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' Segment 1 - Construct a lift station at Birger Pond capable of pumping 8
cfs. Appro�cimately 4,400 feet of 16-inch forcemain and 2,000 feet of 21-
inch gravity storm drain would be installed from Birger Pond to Daly
� Pond. The average depth af the gravity storm drain included in this
segment is eight feet.
�
Segment 2 - After the construction of the outlet frorn Birger Pond into
Daly Pond is completed, a lift station would be constructed at Daly Pond
, ca.pable af pumping 14 cfs. The forcemain wouid be installed from Daly
Pond to the east across S.T.H.3 and then to the south within the highway
� right-of-way to Conemara Trail (approximately 3,400 feet of 18-inch
forcemain) where the outlet pipe would change to a gravity line draining
, to Pond ROS 155 {approximately 1,600 feet' of 21-inch gravity storm
draui). 'The average depth of the gravity storm drarn included in th�s
segment is seven feet.
�
Segment 3 - After the canstruction of the outlet from Daly Pond is
� completed,a gravity storm drain outlet would be constructed at Fond ROS
155. The gravity starm drain system would be installed from Pond R4S
155 to Pond MUR 170 located on tMe south side of the railroad tracks
, (approximately 4,500 feet of 24 to 30-inch gravity storm drain). The
average depth of the storm drain included in this segment is 20 feet.
, ,
Estirnated Prnject Cost.
, Segment 1 = $1,199,000
Segment 2 = $888,000
� Segment 3 = 964 00
Total $3,051,000
, Includes $311000 for easement ac uisition
t � Q )
, Discussion: Each of the ponds listed above (Birger Pond, Daly Pond and
ROS 15�) are described in the City of Rosemount Drainage Plan as
� landlocked basins. Eventually, if no storm drain outlet is constructed at
these basins and as development occurs within their drainage districts, the
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-�-�-OSM Proje�t No. 5162.10 - Fage 9
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� high water level in these ponds will create a flooding problem. Altemative
C, when constructed, wili provide an outlet for Birger Pond, Dal� Fond,
and Pond ROS 155,and will prevent future flooding problems in their sub-
' watershed areas, Pond MIJR 170 is located in an undeveloped area and
is also deseribed as a landlocked basin in the City of Rosemount Drainage
� Plan, As development occurs in its sub-watershed, a storm drain outlet
will need to be constructed for Pond MLTR 170 in order to effectively
manage its HWL: The construction of Altemative C could be -
� accomplished in phases with Segment 1 being completed first. As '
development occurs in the DAI, and ROS drainage districts, Segments 2
, and 3 will need to be completed. In the existing development candition,
if only Segment 1 of Alternative C is constructed, the 1�-year, 2.4-hour
, rainfall event wiii produce a HWL in Daly Pond estimated at 938.0. This
elevarion assumes that Daly Pond is at its NWL (928.0) when the cnt�cal
storm occurs. When the ultimate development in the district occurs and`
' Segments 2 and 3 are constructed, the 100-year, 24-hour rainfall will
produce a HWL at Daiy Pond of 934.0.
�
In reviewing the topography for this area, it appears that a logicallacation
for the outlet to Pond MUR 170 would be to the south into the University
iof Minnesota property and ultimately to the Vermillion River.
, Alternative D Lit� Station from Birger Pond to Daly Pond and
Gravity Storm Drain from Daty Pond to Pond MUR
170 Including Picking up Pond ROS 155:
�
Imprnvement: As in Alternative C, this alternative would construct an
, outlet for Birger Pond flowing to the east, entirely within the City of
Rosemount. Also, as in Alternative C, there are three main segments
� involved with this alternative:
Segment 1 From Birger Pond to Daiy Pond
, Segment 2 From Daly Pond to Pond ROS 155
Segment 3 From Pond ROS 155 to Pond MUR 170
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' �OSM Project No. 5162.10 - Page 10
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� Segment 1 - Same as Aiternative C,
Segment 2 - Construct a gravity storm drain outlet from Daly Pond to a
, location adjacent to Pond R�S 155. The storm drain at this location
would be deep enough to provide Pond ROS 155 with a gravity storm
� drain outlet. Approximately 3,700 feet of 27-inch gravity storm drain
would be installed from Pond DAL 129 to Pond ROS 155. The average
depth of the storm drain included in this segment is 20 feet.
�
Segment 3 - Continue the gravity storm drain outiet from the location
� adjacent ta Pond ROS 155 to Pond MUR 170. Approximately 4,5(� feet
of 24-inch to 30-inch storm drain would be installed with this segment.
The average depth of the storm drain inciuded in this segrnent is 40 feet.
'
Segment i = $1,199,000
' Segment 2 = $1,379,500
Segment 3 = �.�,295�Q
' Tatal $4,573,500
Estimated Project Cost: (Includes $595,t�0 for easement acquisition)
,
Discussion: As with Alternative C, this alternative will provide a storm
' drain outlet for three of the landlocked basins - Birger Pond, Daly Pond
and Pond ROS 155. Additionally, as development occurs in its sub-
watershed,a storm drain outlet will need to be constructed for Pond MUR
, 170 in order to effectively manage its HWL. The construction of
Alternative D could be accomplished in two phases (Segment 1 and
' Segments 2 and 3).
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� Alternative E Lit� Station frnm Birger Pond to Schwar� Pond
(SCH 151), Lit� Station frnm Schwarz Pond to the
Armory Site Pond (SCH 153}, Gravity Storm Drain
� &om the Armory Site Pond to Ericksan Pond (ERN
190) and Lif� Station from Erickson Pond to the
1 area north of 145th Street and west of Biscayne
Avenue (north of the Business Park).
� Impmvement: As with Alternatives C and D, this alternative would
construct an outlet for Birger Fond flowing to the east, entireiy within the
' City of Rosemount. There are four main segments involved with this
alternative:
' Se ment 1 From Bir er Pond to Schwarz Pond
g g
Segment 2 From Schwarz Fond to Armory Site Pond
, Segment 3 Armory Site Pond to Erickson Pond
Segment 4 From Erickson Pond to the area north of the Business Park
' Se ent 1 - Construc lif s i n Bir er Pond ca able of m in
gm t a t tat o at g p pu p g 8
cfs. Approximately 4,100 feet of 16-inch forcemain and 3,5(� feet of
, gravity storm drain would be installed from Birger Pond to Schwarz Pond
The average depth of the storm drain incIuded in this segment is seven
, feet.
Segment 2 - Construct a lift station at Schwarz Pond capable of pumping
' 14 cfs. Approximately 1,60Q feet of 18-inch forcemain would be installed
from Schwarz Pond to the east to the Armory Site Pond
'
Segrnent 3 - Construct a gravity storm drain outlet from the Armory Site
Pond to the east to Erickson Pond. The gravity storm drain outlet would
, _ include approximately 1,600 feet of 24-inch line. The average depth of the
storm drain included in this segment is 20 feet.
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' - - OSM Project No. 5162.10 Page 12
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, Segment 4 • Construct a lift station at Erickson Pond capable of pumping
10 cfs. Approximately 1,100 feet of 18-inch forcemain would be installed
that would discharge into a gravity sewer. Approximately 600 feet of 2'7-
, inch gravity storm drain will ultimately discharge to the area north of the
Business Park.
'
Segment 1 = $1,082,000
Segment 2 = $406,000
' Segment 3 = $191,500
Segment 4 = �687,000
, Total $2,366,500
' Estimated Project Cost: (Includes $166,0� for easement acquisition.)
Discussion: The construction of this altemati�e would provide storm drain
, outlets to four landlocked basins(Birger Pond, Schwarz Pond,Armory Site
Pond and Erickson Pond). As is the case with Birger Pond, as
' development occurs in their drainage districts,the stormwater elevation in
these ponds will continue to rise and will eventuaiiy +create flooding
conditions, Alternative E could be constructed in two phases with
' Segments 1 - 3 being completed initially and Segment 4 constructed when
the ultimate development occurs.
,
The proposed storm drain for Alternative E terminates at the north side
of 145th Street west of Biscayne Avenue. The ultimate outlet for this area
� could be to the east into the University of Minnesata property and
eventually to the Vermilion River. A second possible ultimate ouilet for
, this area could be through the Business Park storm drain system (if
capacity is available).
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, Aiternative F Lif� Station from Birger Pond to Daly Pond, Lif�
Station frorn Daly Pond to Armory S�te Pond,
Gravity Storm Drain fram Armory Site Pand to
' Erickson Pond, Lif� Station t�rom Erickson Pond to
the area north of the Business Park.
'
Improvement: As with Alternatives C, D and E, this alternative would
construct an outlet for Birger Pond flowing to the east, entirely within the
i City of Rosemount. There are four main segments involved with this
alternative.
'
Segment 1 From Birger Pond to Daly Pond
' Segment 2 From Daly Pond to Armory Site Pond
Segment 3 Armory Srte Pond to Erickson Pond
Segment 4 From Erickson Pond to the area narth of the Business Park
,
Segment 1 - Same as Alternatives C and D.
' e n _
S gme t Z After the construetion of the Birger Pond outiet, construct a
lift station capable of pumping 14 cfs at Daly Pond. The forcemain for
� this segment would be installed from Daly Pond to the east to Dodd
Boulevard and then to the south within the existing road right-of-way
, (approximately 3,000 feet of 18-inch forcemain). At a point approximately
250 feet north of the cemetery, the outlet pipe would change to a gravity
line draining to the south and into the Armory Site Pond (approxinnately
' 1,400 feet of 21-inch gravity storm drain). The average depth of the
gravity storm drain included in this segment is 10 feet.
�
Segment 3 - Same as Alternative E.
� Se ent 4 - Same as Alternative E.
�
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' -�—OSM Project No. 5162.10 page 14
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' Estimated Project Cost:
Segment 1 = $1,199,000
' Segment 2 = $?33,SOQ
Segment 3 = $191,500
� Segment 4 = ,�687.000
Total $2,811,040
�
(Includes $253,5�0 for easement acquisition.)
�
Discussion: Altemative F would provide an outlet for the Birger, Daly
and Erickson Ponds, which are listed as landlacked basins in the City of
' Rosemount Drainage Plan. This alternative differs from Alternative E in
that it does not drain stormwater into Schwarz Pond. The outlet far
� Schwarz Pond to the Armory Site Pond would be considered when
designing the storm drain improvements associated with this altemative.
`' Altemative F could be constructed in three phases with Segment 1 being
completed imtially and Segments 2 and 3 constructed next when the
ultimate development occurs in the Daly Pond Drainage District. Finally,
' as development occurs in the Erickson Pond Drainage District, Segment
4 will need to be constructed.
�
As with Alternative E, the termination point for this altemative is in the
area north of the Business Park. The outlet for this area could be to the
, University of Minnesota property or through the Business Park storm
drain system.
'
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'
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� 5. SUMMARY, CONCLUSIONS AND RECOMMENDATIONS
We have reviewed the existing drainage system for the Buger Pond District and
' have determined that the majority of the stormwater system in the district
functions adequately, however, the stormwater levels in Birger Pond have
� continued to rise, as development has occuned. Cunently, there is no
stormwater outlet for Birger Pond.
� Additionally, the Shannon Oaks District (located north of the Birger Pond
District)has experienced flooding conditions. The recommended drainage system
� improvements for the Shannon Oaks District include constructing a lift station
capable of pumping 2 cfs from Pond SHA 75 into the Birger Pond District. With
' the proposed Shannon Oaks District outletting stormwater into Birger Pond and
the continued development in the district, it is apparent that a stormwater outlet
will need to be provided at Birger Pond.
'
As shown in Section 4.1 of this report, the temporary stormwater outlet pumping
� scenarios reviewed will provide only short-term relief to the flooding condition
at Birger Pond.
, A summary of the estimated project costs for the permanent outlet alternatives
is listed as follows:
�
Alternative A = $1,014,0�0 (plus future storm drain improvements at the
Apple Valley Gravel Pit)
i Alternative B = $1,233,000 (plus future storm drain improvements at the
Appie Valley Gravel Pit)
' Alternative C = $3,051,000 (plus future storm drain improvements at
Pond MUR 170)
Alternative D = $4,573,500 {plus future storm drain improvements at
' Pond MUR 170)
Alternative E _ $2,366,500 (plus future storm drain improvements in the
� area north of the Business Park)
'� Alternative F = $2,811,000 (plus future storm drain improvements in the
area north of the Business Park)
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� -�-�.-OSM Project No. 5162.10 - Page 16
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� Each of the alternatives would provide a stormwater outlet for Birger Pond,
however, Alternative F is the recommended alternative.
� Altematives A and B were the lowest cost, however, each of these alternatives
involved storm drain construction and stormwater discharge in the City of Apple
� Valley. Due to the potential for future financial obligations related to stormwater
improvements for the City of Apple Valley, these alternatives were not
recommended.
�
Altematives C and D would provide a stormwater outlet for Birger Pond entirely
� within the City of Rosemount and would provide stormwater outlets for two
additional landlocked basins. However, the reason these altematives were not
� recommended was their high project costs.
_ Alternative E would also provide a stormwater outlet for Birger Pond entirely
rwithin the City of Rosemount and would provide stormwater outIets for three
additional landlocked basins. However, increasing the stormwater flow into
� Schwarz Pond (adjacent to Rosemount High School) would create a flooding
situation at Rosemount High School if the lift station in this location were to ever
not operate properly. -
�
As with Alternatives C - E, Altemative F would provide a stormwater outlet for
: � Birger Pond entirely within the City of Rosemount and wouid provide stormwater
outlets for two additional landlocked basins in the existing development
conditions. Segment 1 of Alternative F could be constructed initially with the
� additional segments construeted as development occurs. (Estimated project cost
for Segment 1 = $1,199,OOQ.)
�
If initially, only the stormwater outiet for Birger Pond is constructed to Daly Pond
(Segment 1) a 100-year,24-hour rainfall event would produce an estimated HWL
� ` at Daly Pond of 938.0 (assuming the stormwater elevation in Daly Pond is at its
NWL when the critical rainfall event occurs). Storm events of a greater
� magnitude than the 100-year, 24-hour rainfall could produce a flooding condition
at Daly Pond. It will be necessary to monitor the stormwater levels in Daly Fond
� to ensure that a flooding condition does not occur. As development occurs in the
drainage district, the HWL in Daly Pond will rise and Segments 2 and 3 will need
'
� -- OSM Project No. 5 i62.10 - Page 17
�
�
� to be constructed,which will provide an outlet for Daly Pond to the Armory Site
Pond and then to Erickson Pond. When the outlet for Daly Pond is constructed,
the 100-year, 24-hour rainfall event will then produce a HWL of 934.0 which is
� within the existing drainage easement for the Rosemount Hills' 3rd Additian
development located adjacent to Daly Pond. Again, the starmwater level in
� Erickson Pond should then be monitored and when the stormwater level in
Erickson Pond reaches its HWL, Segment 4 will need to be constructed.
� If the outlet for Schwarz Pond is constructed prior to the Birger Pond/Daly Pond
outlet, the additional flow from these drainage districts should be considered.
� Funding for this project will come from assessments to the benefitting properties
and the Trunk Stormwater Utility Fund
�
�
�
�
�
�
�
�'
�
�
�
� -�-OSM Project No. 5162.10 Page 18
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Drawn By: Drawing Title Comm. No.
�� R.c.o. °s�;,���„ DRAINAGE AREA MAP s�62.�0
Yayeron & E�IRGER POND
�ote� Asso���t�s. �n�. pRAINAGE PLAN UPDATE Figure
»� Lnjineen■ Archit�cb • Planuen�3urve�on
� �i2sis� � P.�k p�.«ani.r. srrs r.�a.e. ���.,..d ROSEMOUNT,MIN`NESOTA �
Ylaa�apolfs.YM S3�t6-1Y1!�612396-ST7S
� .
� Nkti:2C�2
,?ev.3,'tiz
� 1NNESOTA N}/C�t'OC�1'c�pI1IC SUI"Vejf
Cw_p�rtment of � Natural Resources RQpQ�
� 6�vision of �aters
Project Loke Na.
Eir er Pond 19-224W
� C�Y County Req. N�.
r�ear P,osemount Dakota 94-101
Sec. 19; 24 Twp. 115 Rng' Wc�tershed
� 19; 2Q Metropo]itan
SURV�Y DA;�: 5/24/94
SURVEY Crr�'�N: Scherek, Mall , Woodrich
� IAK�SZ�
Meond�red Area Acres Q Non-meandered
Pk3nimetered Area Acres �Unknown
�' DATUt�!ADJU�'TMENT
LJ a:sumed ❑ i9i2 - Q 1929 ❑ 1988 Source: Di vi sion of 6laters
� CONi;'cOl��hJCHMARK .
Locv';on: ati outlet of Long i.ake (19-22) (NW-SE-NW, Sec. 24-115-ZO)
c'�evcsion: 908.52
Cescr�ticn: chiseled "X" at center of upstream (west) headwaTl of 4'W x 6'H concrete
� box culvert under G.S.A.H. 31 between Long and Farquar Lakes
� SU2V�{WCSRK COMPLETFD , •
� fe��els ❑topo9�aP�Y ❑cross sections ❑ profites '(�Cj ONW
�t1 e�cbGsh benchmarics ❑outtet elevotions ❑o#her.
� W.�,�,� �V�tS .
?-��gh�st REcorded: Water Surface: 897.46, 5/24/94
LowE;t Recorded: OHW Eiev: 895.9
�<cn�Q; Highest Known: 8g$.2 {di stinct stai nl i r��
� OL`1�� on tree�
) i
G��ecclDescription: considered to be landlocked �
� ;
�
'
<;;nc:.fi c"levation&Description: highwater runout would be at least 910 as per the i '
� contours on the
1967 USGS quadrangle E
��hc-Ma7�cs s�r
� ; Locc�ion: at SW side of basin (SE-SE-SE-NE, Sec. 24-115-ZO)
tlevotion: 897.70
Cesc:��tion. north edge of cast�ng< for storm sewer manhole at waters edge and
� approximately 25' to 30' E-SE of the centerline of the trail/oTd drive to farm (green
post wfth "MH" sign on it next to manhole)
�oc�ion; at SE side of basin (SE-SE-SW-NW, Sec. 19-115-19}
� =ev�icn: 903.59
Descn�tion: head of bolt attaching hinge for trashguard to the top of a 36" concrete
inlet culvert
�
�;zacrad ��
� Jot�n M. Scherek �h rrtie Survey Crew Supv. �°te 5f27/94
FIGURE 3
:��;. � .
:K .
� - The Q.H.W. 1eve1 of the basin is based on the av
7 wlvch we documented (o� e erage reduced elevation of the 6 best trees of the
distinct stainline at 898.2, a r e c ent w a s h l i ne a�8 98e1�d' �d white pine). W e al s o r e c or d e d a
� � a t o e i n t h e l a k e a t 8 9 3.5.
We also tied in a iake gauge located near the stonn sewer inlet on the SE sid
bottom of the gauge reads 898.00, and the tt� reads 904.00. e of the basin, The
� gauge was g97.9L �'�P Our elevation at tho
bottom of the
� In conjunction with our work on Basin 19-224W we also obt '
uned these elevations:
Water level, Long Lake(19-22)
Present runout of Long Lake(on rocks 11'upstreazn of box 902.31
�� culvert under C
.S.A.H. 31)
Water level, Farquaz Lake�(19_23� 902.2
� 898.I7
� •
'� .
�
� •
t ,
�
�
� TABtE 4
� B/RGER POND OUTLET STUDY
ALTERNAtIVE"C"
� PREL/MINARY COST ESTlMATE
SEGMENT 1 BIRGER TO DALY
LIFT STATION &APPURT. LS 1 S300,�0 $30Q,000
� FORCEMAW 16"PVC LF 4400 $4Q 5176,0�
� GRAVITY LINE 21"RCP � � $30 S60,p�
MH'S&OUTLET EA 7 $2,000 $14,�0
� � RESTORATION
STREET LS 1 5136,000 S136,000
DRIVEWAYS LS 1 S7,500 S7,500
� TURF LS 1 $28,500 528,500
SEGMENT 1 -TOTAL CONSTRUCTION COSTS $722,ppp
� 15%CONTWGENCIES $�pg,�p
SUBTOTAL $ggp,ppp
30�ENGINEERING, �EGAL&ADMINISTRATION $249,000
SUBTOTAL S 1,079,000
�
EASEMENTS TEMPORARY AC 3 $20,000 560,000
� PERMANENT AC 2.40 $25,000 560,000
SUBTOTA� $�20,�p
SEGMENT 1 -TOTAL PROJECT COSTS $�,�qq,ppp
� SEGMENT 2
DALY TO ROSE (FM/LS)
LIFT STATION &APPURT. LS 1 $250,�0 $250,000
� FORCEMRIN 18"PVC
LF 3300 S45 5148,500
18"PVC JACKED 100 S200 520,000
� GRAVITY L1NE 21°RCP LF 1600 S35 556.000
MH'S&OUTLET EA 5 $2,000 510,000
� RESTORATION
STREET LS 1 550,000 550,000
TURF LS 1 522�0 522,000 '
� SEGMENT 2-TOTAL CONSTRUCTION COSTS $�,500 '
15%CONTINGENCIES $83,ppp �
, SUBTOTAL $�qp,�
30%ENGINEERING, LEGAL,&ADMINISTRATION $�q2,p�
SUBTOTAL S832,000
� EASEMENTS TEMPORARY AC 1.8 S20,000 $36,000
PERMANENT AC 0.8 $25,�0 S20,000
� .
�
�
TABLE 4
� SUBTOTAL 56�
$ ,
� SEGMENT 2-TOTAL PROJECT COSTS $ggg,(�
SEGMENT 3 ROSE TO MUR {FM/LS UPSTREAM)
� GRAVITY LJNE
30"RCP LF 23� S1� $230,0�
30"RCP(JACKED) LF 100 $300 $30,000
� 24"RCP LF 2000 $75 S150.�0
24"RCP(JACKED) LF 1� S300 $30,000
MH'S&OUTLET EA 15 $5,000 $75,0�
� RESTORATION
TURF LS 1 $40.000 $40.000
� SEGMENT 3-TOTAL CONSTRUCTION COSTS $555,�0
15�CONTINGENCIES ggg,ppp
SUBTOTAL �g,p�
� 30�ENGINEERING, LEGAI�&ADMINISTRATION $191,0�
SUBTOTAL $g2q,ppp
�� EASEMENTS TEMPORARY AC 3 S20,000 Sb0,�0
PERMANENT AC 3 525,�0 S75,000
� SUBTOTAL $135,(�0
SEGMENT 3-TOTAL PROJECT COSTS $q�q,�
� ALTERNATIVE"C"TOTAL PROJECT COST S2,931,�
�
�
�
�
�
�
�
�,
�
TABLE 5
� B/RGER POND OUTtET STUDY
ALTERNAT/VE"D"
� PREUM/NARY COST EST/MATE
SEGMENT 1 BIRGER TO DALY
UFT STATION &APPURT. � � $gpp,ppp 5300,pp�
� FORCEMAIN 16"PVC LF 4400 $40 176
$ ,000
� GRAVITY LINE 21"
RCP LF 2000 $30 560,000
MH'S&OUTLET EA 7 520� S14,�
� RESTORATION
STREETS LS 1 S13b.000 S136,000
� DRIVEWAYS LS 1 57.500 S7.5�
TURF LS 1 $28,500 528,500
� SEGMENT 1 -TOTAL CONSTRUCTION COSTS $722�p
15°°�CONT. s��g,�
SUBTOTAL 5830,000
� 30%ENGINEERING, LEGAL&ADMINISTRATION $249,�0
SUBTOTAL $1,079,000
� ERSEMENTS TEMPORARY AC 3 $20,�0 S60,000'
PERMANENT AC 2.40 $25,000 560,000
SUBTOTAL S 12�,�
� SEGMENT 1 -TOTAL PROJECT COSTS 51,199,t�0
SEGMENT 2 DALY TO ROSE (GRAVITI�
� LIFT STATION &APPURT. LS 0 N/A S0
fORCEMAIN LS 0 N/A S0
� GRAVITY LINE 27°RCP lF 3700 $85 5314,500
MH'S&OUTLET EA 10 55,000 $50,000
EARTHW4RK CY 110�0 53 S330,000
� RESTORATION
STREETS LS 1 S15,000 515,�00
� TURF LS 1 $80,000 $80,Q00
SEGMENT 2-TOTAL CONSTRUCTION COSTS $789,500
� 15�CONT. S 11$,000
SUBTOTAL 5907,500
30°,�ENGINEERING, LEGAL,&ADMINISTRATION $272,ppp
� SUBTOTAL S 1.179,500
EASEMENTS TEMPORARY AC 8 $20,000 $160,�0
�
�
�
TABLE 5
� PERMANENT AC 1.6 S25,0�
540,000
SUBTOTAI $2�0,000
� SEGMENT 2-TOTAL PROJECT COSTS $1,379,5�
� SEGMENT 3 ROSE TO MUR (GRAVtTY UPSTREAM)
GRAVITY LINE
30N RCP LF 2300 $100 S230,000
� 30"RCP(JACKED) LF 100 5300 530,000
24" RCP LF 20� S75 $150.000
24"RCP(JACKED) LF 100 S300 S30.�0
� MH'S&OUTLET EA 15 S10,000 $150,�
EARTHWORK CY 1fi00Q0 S3 $480,�
� RESTORATION
TURF LS 1 S80,�0 $80,000
� SEGMENT 3-TOTAL CONSTRUCTION COSTS $1,150,�0
15%CONT. $�73,ppp
SUBTOTAL $1,323,000
� 30%ENGINEERING, LEGAL,&ADMINISTRATION $397,000
SUBT�TAL S�,7�p,ppp
EASEMENTS TEMPORARY AC 10 $20,000 $200,000
, PERMANENT AC 3 $25,�Q S75,000
SUBTOTAL $275,000
� SEGMENT 3-TOTAI PROJECT COSTS $�,qq5,ppp
ALTERNATIVE"D°TOTAL PROJECT COST S4;573,500
�
�
�
�
i
1
1
!
,
TABI.E 6
' , B/RGER POND OUTLET STUDY
ALTERNAT/VE"E"
� PREL/M/NARY COST EST/MATE
SEGMENT 1 BIRGER- FORCEMAIN/GRAVITY
LIFT STATION &APPURT. LS � S2pp,ppp $2pp,ppp
� FORCEMAIN 16"PVC LF 4100 ' $40 1
S 64,000
� GRAVtTY LINE 18"RCP LF 35� $30 $105,000
MH'S&OUTLET EA 10 $1,500 $15,�
� RESTORATION
STREETS LS 1 $136,000 S136,000
DRIVEWAYS LS 1 S7,500 57,500
� TURF LS 1 $39,500 S39,50Q
SEGMENT 1 -TOTAL CONSTRUCTION COSTS $�7,ppp
� 15%CONT. S 100,�0
SUBTOTAL S76?,OCjO
309'o ENGINEERING, LEGAL,&ADMINISTRATION $230,000
, SUBTOTAL $997,000
EASEMENTS TEMPORARY AC 3.00 $20,000 $60,000
� PERMANENT AC 1.00 $25,000 525,000
SUBTOTAL $85,ppp
� SEGMENT 1 -TOTAL PROJECT COSTS $�,p$2,p(�
SEGMENT 2 SCHWARZ TO ARMORY
, LIFT STATION &APPURT. LS 1 S200,000 $2�.000
FORCEMAIN 18"PVC LF 1600 S40 Sb4,00Q
,
RESTORATION LS 1 $7,000 $7,0�
� SEGMENT 2-TOTAL CONSTRUCTION COSTS 5271,ppp
15%CONT. $41,000
SUBTOTAL 5312,000
� 30�ENGINEERING, LEGAL,&ADMINISTRATION $qq,p�
SUBTOTAI 5406,000
iEASEMENTS TEMPORARY AC 0 S20,000 SO
PERMANENT AC 0 $25,OQ0 S0
SUBTOTAL SO
, SEGMENT 2-TOTAL PROJECT COSTS
S4o6,000
,
�
�
TABLE 6
ISEGMENT 3 ARMORY TO ERICKSON
� GRAVITY LINE
24"RCP LF 1500 $35 $52500
18°RCP(JACKED) LF 1� $250 $25.�0
� MH'S&OUTLET EA 8 51,5� S12,000
RESTORATION � � $g,ppp $g,ppp
' ` SEGMENT 3 -TOTAL CONSTRUCTIQN COSTS $q7,�
15R6 CONT. S 15.000
� SUBTOTAL S112,500
30%ENGINEERING, LEGAL,&ADMINISTRATION $34,ppp
SUBTOTAL S 146,500
, EASEMENTS TEMPORARY AC 1 $20,000 $20,000
PERMANENT AC 1 $25,0� $25,000
� SUBTOTAI. $q,5,pp0
SEGMENT 3-TOTAL PROJECT COSTS $�q�,5pp
, SEGMENT 4 ERiCKSON TO BUS. PK
� IIFT STATION &APPURT. LS 1 5300,�0 5300,000
FORCEMAIN 20"PVC LF 1000 S50 $50,000�
� 20u JACKING PIPE LF 100 $200 S20,�0
GRAVIN 27°RCP LF 500 S40 S20,000
27"RCP(JACKING) LF 100 S300 530.�
, MH'S/OUTLETS EA 4 $1,5� $6,000
RESTORATION
rTURF LS 1 $10,000 510,000
SEGMENT 4-TOTAL CONSTRUCTION COSTS $436,000
� 15%CONT. $�,�
SUBTOTAL $501,OQ0
309b ENGINEERING, LEGAL,&ADMINISTRATION $150,ppp
� SUBTOTAL $651.000
EASEMENTS TEMPORARY AC 0.80 520,000 $I6,000
� PERMANENT AC 0.80 S25,000 S20,000
SUBTOTAL $36,000
� SEGMENT 4-TOTAL PROJECT COSTS $687,ppp
ALTERNATIVE "E"TOTAL PROJECT COST � S2,366,500
i
1
�
TABLE 7
� B/RGER PONQ OUTI.ET STUDY
AlTEI?NAT/VE"F"
� PREUM/NARY COST ESTIMAlE
SEGMENT 1 BIRGER TO DALY
LIFfi STATION&APPURT. LS 1 $3�,� $3�,000
� I FORCEMAIN 16"PVC LF 44� 54� 5176,�0
, GRAVITY IINE 18"RCP LF 20� $30 $b0.000
MH'S&OUTLET EA 7 $2,000 $14,000
, RESTORATION
STREETS LS 1 S13b,� 5136,000
DRIVEWAYS LS 1 $7,5� 57.5�
, TURF LS 1 $28,500 S28,500
SEGMENT 1 -TOTAL CONSTRUCTION COSTS $722,�0
15%CONT. $108,000
, SUBTOTAL S830,OOQ
30%ENGWEERING, LEGAL&ADMINISTRATION $249,�0
SUBTOTAL S 1,079,OOQ
' EASEMENTS TEMPORARY AC 3.00 20� 60 000
S . S .
PERMANENT AG 2.40 525,0� S60,000
, SUBTOTAL S 120,000
SEGMENTI -70TALPROJECTCOSTS $1,199,000
' SEGMENT 2 DAIY TO ARMURY
� LIFT STATION&APPURT. LS 1 S250,000 S250,000
FORCEMAIN 18"PVC LF 3000 $40 S120.�0
' GRAVITIF LINE 21"RCP LF 1400 535 $49,t�0
MH'S&OUTLET EA 5 S2,000 S10,000
RESTORATION LS 1 $27,0� S27,000
, SEGMENT 2-TOTAL CONSTRUCTION COSTS $456,000
15%CONT. S68,�0
SUBTOTAI $524,000
� 30%ENGINEERING, LEGAL&ADMINISTRATION 5157,000
SUBTOTAL $681.000
� EASEMENTS TEMPORARY AC 2A S20,000 S40,000
PERMANENT AC 0.5 S25,000 S12,500
SUBTOTAL 552.50Q
� SEGMENT 2-TOTAL PROJECT COSTS
S733,500
�
�
'
TABLE 7
I SEGMENT 3 ARMORY POND TO ERIC 3
K ON
� GRAVIIY LINE
24°RCP LF 15� $35 S52.500
18°RCP(JACKED) LF 1� $250 525.�0
' MH'S&OUTLET EA 8 $1,�0 $12,000
RESTORATION LS 1 $8,� 58,�
' SEGMENT 3 -TOTAL CQNSTRUCTION COSTS 597,500
15%CONT. S 15,000
I ' SUBT�TAL $112,500
30%ENGINEERING, LEGAL,&ADMINISTRATION $34,Q00
SUBTOTAL S 14b;500
' EASEMENTS TEMPORARY AC 1 $20,�0 $20,000
PERMANENT AC 1 525,000 525,�0
SUBTOTAL $45,000
' SEGMENT 3-TOTAL PROJECT COST
S S141,500
' SEGMENT 4 ERICKSON TO BUS. PK
LIFT STATION&APPURT. LS 1 $3�.000 S3Q0,000
'' FORCEMAIN 20"PVC l.F 1�0 S50 50 000.
$
20"JACKING PIPE LF 1� $2� 520,000
' GRAVITY 27"RCP LF 50Q 540 520,000
27"RCP(JACKING) LF 100 $3� $30,000
� MH'S/OUTLETS EA 4 51,500 56,000
RESTORATION
� TURF LS 1 S10,0(�0 S10.000
SEGMENT 4-TOTAL CONSTRUCTION COSTS $436,ppp
' 15%GONT. 565,000
SUBTOTAL $501,ppp
309'o ENGINEERING, LEGAL,&ADMINISTRATION $�5p,(�p
SUBTOTAL 5651,000
,
EASEMENTS TEMPORARY AC 0.80 S20,000 $16,000
PERMANENT AC 0.80 S2b,000 S20,000
` SUBTOTAL S3b,000
SEGMENT 4-TOTAL PROJECT COSTS $687,OOp �
� �� ��
ALTERNATIVE F
T T
O AL PROJECT COST 2 811 000
S
�
'