HomeMy WebLinkAbout190716 4b Morningside FRRS Exec Summary Memo_11192018
Barr Engineering Co. 4300 MarketPointe Drive, Suite 200, Minneapolis, MN 55435 952.832.2600 www.barr.com
Memorandum
To: Jessica Wilson and Ross Bintner, City of Edina From: Cory Anderson, Sarah Stratton, and Janna Kieffer Subject: Morningside Neighborhood Flood Risk Reduction Strategy Conceptual Study Date: November 19, 2018 Project: 23271649.00
1.0 Purpose of Project and Project Background
This technical memorandum summarizes Barr Engineering Co.’s (Barr’s) preliminary evaluation and
conceptual design of potential flood risk reduction options for the Morningside neighborhood within the
city of Edina. This work included a high-level evaluation of potential flood risk reduction options and
development of associated planning-level opinion of probable construction costs. In parallel to Barr’s
work, city of Edina staff (City) have been working on an approach for summarizing impacted structures
and estimating potential flood damages and we understand that this damage information (dollars) will be
used in conjunction with the estimated project cost data developed by Barr to help City staff further
evaluate the costs and benefits of flood risk reduction opportunities in the study area.
2.0 Description of Existing Conditions
The Morningside/Weber Park area is described in the City’s 2018 Comprehensive Water Resources
Management Plan (CWRMP, reference (1)):
The Morningside/Weber Park area is in the far northeastern corner of Edina, bordering St. Louis Park to the
north and Minneapolis to the east. The area is characterized by numerous backyard depressions and several
large low-lying areas, including Weber Park. There are two large stormwater detention basins in the area,
one located just north of West 42nd Street between Lynn Avenue and Kipling Avenue, and the other located
just north of West 42nd Street and west of France Avenue South (in Weber Park). The area is drained by a
piped outlet that conveys stormwater to Lake Bde Maka Ska (formerly named Lake Calhoun) in Minneapolis.
The storm sewer and detention basins in this area were originally designed for the 2-percent-annual-chance
(50-year) storm event using TP-40 rainfall frequency estimates. Portions of this area have experienced flood
problems historically.
Model results indicate that approximately 65 principle structures and Avail Academy – Edina Campus
(formerly Calvin Christian School) may be directly impacted by the 1-percent-annual-chance (100-year)
flood elevations within this area. In the west part of this area, the flood elevation is approximately 872.1 feet
(subwatershed MS_26). In the southwest part of this area, the flood elevation is approximately 871.7 feet
(subwatershed MS_15). In the southeast part of this area, the flood elevation is approximately 870.1 feet
To: Jessica Wilson and Ross Bintner, City of Edina From: Cory Anderson, Sarah Stratton, and Janna Kieffer Subject: Morningside Neighborhood Flood Risk Reduction Strategy Conceptual Study Date: November 19, 2018 Page: 2
P:\Mpls\23 MN\27\23271649 Morningside FRRS Study\WorkFiles\Technical Summary Memo\Morningside FRRS Exec Summary Memo_11192018.docx
(subwatershed MS_52). In subwatersheds MS_40 and MS_39a and MS_39b, the flood elevation is 870.0 feet.
In the smaller depressions without outlets to storm sewer such as subwatersheds MS_58, MS_20, MS_22,
MS_57, MS_17, and MS_24, the peak flood elevations are 872.9 feet, 877.3 feet, 872.4 feet, 902.5 feet, 902.5
feet, and 872.1 feet respectively. Flood elevations in subwatersheds MS_20 and MS_22 are controlled by the
10-day snowmelt event, while flood elevations in the remaining subwatersheds are controlled by the 24-
hour duration event.
Flood inundation mapping for the 1-percent-annual-chance (100-year) and the 10-percent-annual-chance
(10-year) storm events can be found on Figure 12.3 of the CWRMP and on the City’s Interactive Web Map.
3.0 Potential Flood Risk Reduction Options
Several potential flood risk reduction options were evaluated using the City’s XP-SWMM model. Five
storm recurrence intervals (i.e., 5-year, 10-year, 25-year, 50-year, and 100-year 24-hour storm events) were
simulated for each flood risk reduction option to help understand the amount of improvement each
option can achieve depending on the severity of the rainfall event. Barr conducted a cursory evaluation of
potentially impacted structures for each potential flood risk reduction option to assess which options
provided the greatest level of flood risk reduction (in terms of a reduction in the number of impacted
structures). The seven options that provided the greatest level of flood risk reduction are described below
and additional details are also shown on the figures included in Attachment A.
• Option 2b: Increase the size of the main trunk storm sewer along West 42nd Street and Crocker
Avenue (up to 60”), including some of the lateral storm sewer (e.g., along Grimes Avenue, 24” to
48”), and construct a flood wall on the east and south sides of Weber Pond, between the pond
and the adjacent residential properties, tying into West 42nd Street on the south side of Weber
Pond (Figure A-1).
• Option 3a: Provide additional flood storage by excavating (i.e., lowering) the ballfield area of
Weber Park and reconstructing the fields, excavating the wooded area north of Weber Pond,
excavating and re-grading the low area between Lynn Avenue and Kipling Avenue north of West
42nd Street, lowering the open area between Susan Lindgren Elementary School and Monterey
Avenue (Yale Gardens Park), and excavating some of the backyards between 44th Street and
Branson Street. Additionally, construct a flood wall on the east and south sides of Weber Pond,
between the pond and the adjacent residential properties (also included in Option 2b), and
construct an earthen berm along the west side of Monterey Avenue between West 41st Street and
West 42nd Street. This option would also include installation of a culvert to connect Weber Pond
to the newly excavated storage in the wooded area north of West 41st Street (Figure A-2).
• Option 4a: Provide additional flood storage by excavating and re-grading the low area between
Lynn Avenue and Kipling Avenue north of West 42nd Street, and installing predictive pumping
To: Jessica Wilson and Ross Bintner, City of Edina From: Cory Anderson, Sarah Stratton, and Janna Kieffer Subject: Morningside Neighborhood Flood Risk Reduction Strategy Conceptual Study Date: November 19, 2018 Page: 3
P:\Mpls\23 MN\27\23271649 Morningside FRRS Study\WorkFiles\Technical Summary Memo\Morningside FRRS Exec Summary Memo_11192018.docx
systems from the aforementioned low area and Weber Pond to the park (Minikahda Vista Park)
north of Avail Academy – Edina Campus to free up flood storage capacity prior to significant
rainfall events (Figure A-3). The predictive pumping rates were chosen to draw down these two
water bodies from their normal levels to about 6-inches of water depth over a 24 hour period
(recognizing that predicting storms more than 24 hours in advance is challenging). For modeling
purposes, the pumping rates were assumed to be the same regardless of predicted precipitation
amounts in order to maximize available flood storage.
• Option 5a: Provide additional flood storage by installing underground storage in Weber Park
and the open area between Susan Lindgren Elementary School and Monterey Avenue (Yale
Gardens Park). Water would be diverted from the storm sewer to the underground storage by
installing three diversion weirs in the existing storm sewer manholes (Figure A-4). Pumps would
be used to draw down water levels in the underground storage after precipitation events (one
pump in each underground storage unit).
• Option 7b: A combination of Options 2b, 3a, and 4a (Figure A-5), which includes:
o Increasing the size of the trunk storm sewer along West 42nd Street and Crocker Avenue
(up to 60”) and some of the lateral storm sewer (e.g., along Grimes Avenue, 24” to 48”)
o Excavating additional flood storage in the low area between Lynn Avenue and Kipling
Avenue
o Installing predictive pumping systems
o Excavating (lowering) the open area between Susan Lindgren Elementary School and
Monterey Avenue (Yale Gardens Park)
o Constructing an earthen berm west of Monterey Avenue
o Constructing a flood wall east and south of Weber Pond
• Option 8: A more simple variant of Option 3a (Figure A-6), which includes:
o Excavating (i.e., lowering) the ballfields in Weber Park and excavating (to a greater extent,
and deeper, than in Option 3a) the wooded area north of Weber Pond
o Constructing a flood wall east and south of Weber Pond
o Modifying (lowering) the inverts of the storm sewer pipe from Weber Pond to
Minneapolis so that the normal water level of Weber Pond can be lowered by less than 2
feet.
• Option 9: A combination of Option 2b, parts of 5a, and 8 (Figure A-7), which includes:
o Increasing the size of the trunk storm sewer along West 42nd Street and Crocker Avenue
(up to 60”) and some of the lateral storm sewer (e.g., along Grimes Avenue, 24” to 48”)
o Constructing a flood wall on the east and south sides of Weber Pond
To: Jessica Wilson and Ross Bintner, City of Edina From: Cory Anderson, Sarah Stratton, and Janna Kieffer Subject: Morningside Neighborhood Flood Risk Reduction Strategy Conceptual Study Date: November 19, 2018 Page: 4
P:\Mpls\23 MN\27\23271649 Morningside FRRS Study\WorkFiles\Technical Summary Memo\Morningside FRRS Exec Summary Memo_11192018.docx
o Excavating (i.e., lowering) the ballfields at Weber Park and excavating (to a greater extent)
the wooded area north of Weber Pond.
o Modifying (lowering) the inverts of the storm sewer from Weber Pond to Minneapolis so
that the normal water level of Weber Pond can be lowered by less than 2 feet.
o Installing underground storage in Yale Gardens Park, the required diversion weir in the
nearby manhole structure, and the low-flow pump to drain the stored water.
4.0 Results
Barr provided tables of peak flood elevations to the City for a subsequent analysis of flood consequences
and damages (reference (2)). The tables summarized flood elevations, by subwatershed, under existing
conditions and under each of the seven flood risk reduction options for each of the five modeled
recurrence intervals. Barr and City staff then developed a method to estimate flood damages based on
the peak flood elevations and approximate home elevations. The goal of the analysis was to estimate
flood risk and associated impacts at a neighborhood-scale for varying storm events. The flood damage
estimates reflect “loss potential” in dollars, based on estimated flood loss potential tables published by
the Federal Emergency Management Agency (FEMA) (reference (3)) and assumptions or judgments about
the probability of damage given a flood level relative to the assumed (LiDAR-based) home elevations.
The methodology for quantifying flood risk accounts for probability of flood events, probability of
damage, and the magnitude of damages for existing conditions and for each of the seven flood risk
reduction options. This approach for quantifying flood risk considers damage due to potential direct
flooding of homes at the surface, indirect flooding of homes via groundwater, and flooding of homes via
sanitary sewer backups. The results are detailed in the City’s documentation (reference (4)) and are
summarized below to provide a comparison of relative flood risk reduction in terms of the number of
impacted principle structures. Please note that in the City’s documentation and the summary provided
below, principle structures are referred to as “homes”. Additionally, homes that are referred to as
“removed from risk” in the summary below are homes that are no longer at risk of damage by the three
damage modes considered for storm events that have a 1%, or greater, chance of occurring each year;
however, no home is ever removed from all flood risk. Homes described as “increased risk” would expect
higher peak flood levels for some or all of the storm events modeled, and subsequently, higher expected
damages in dollars. Conversely, homes described as “decreased risk” would expect lower peak flood levels
for some or all of the storm events modeled, and subsequently lower expected damages in dollars.
• Option 2b: 26 homes were completely removed from risk, the risk was decreased for 111 homes
throughout the area, and the risk was increased for 15 homes. These 15 homes are primarily
around Weber Pond where water would accumulate due to the additional conveyance of storm
sewer upstream. 6 of those homes where the risk increased would be protected by the flood wall,
increasing the total number of homes removed from risk to 32.
To: Jessica Wilson and Ross Bintner, City of Edina From: Cory Anderson, Sarah Stratton, and Janna Kieffer Subject: Morningside Neighborhood Flood Risk Reduction Strategy Conceptual Study Date: November 19, 2018 Page: 5
P:\Mpls\23 MN\27\23271649 Morningside FRRS Study\WorkFiles\Technical Summary Memo\Morningside FRRS Exec Summary Memo_11192018.docx
• Option 3a: 11 homes were completely removed from risk, the risk was decreased for 117 homes
throughout the area, and the risk was increased for one home, which is near Yale Gardens Park
where additional storage and the earthen berm would allow water to be stored to a higher
elevation. However, the berm would separate this home from the stored water and it would be
protected, increasing the total number of homes removed from risk to 12.
• Option 4a: 6 homes were completely removed from risk, the risk was decreased for 127 homes
throughout the area, and the risk was increased for 1 home. This 1 house is east of Weber Pond.
Refinement of the predictive pumping scheme may help in further protecting this home.
• Option 5a: 5 homes were completely removed from risk, the risk was decreased for 92 homes
throughout the area, and the risk was not increased for any homes.
• Option 7b: 38 homes were completely removed from risk, the risk was decreased for 150 homes
throughout the area, and the risk was increased for 1 home. This 1 house is near Yale Gardens
Park where additional storage and the earthen berm would store water higher. However, the
berm would separate this home from the stored water and it would be protected, increasing the
total number of homes removed from risk to 39.
• Option 8: 5 homes were completely removed from risk, the risk was decreased for 74 homes
throughout the area, and the risk was not increased for any homes.
• Option 9: 34 homes were completely removed from risk, the risk was decreased for 136 homes
throughout the area, and the risk was not increased for any homes.
5.0 Planning-Level Opinion of Probable Construction Cost
The Engineer’s planning-level opinions of probable construction cost have been developed for each of the
flood risk reduction options discussed in Section 3.0 and are included as Attachment B. The planning-
level opinions of probable construction cost are intended to provide assistance in evaluating and
comparing flood risk reduction options and should not be assumed as absolute values for given options.
These opinions of probable cost generally correspond to standards established by the Association for the
Advancement of Cost Engineering (AACE). This cost estimate is characterized by limited project definition,
wide-scale use of parametric models to calculate estimated costs (i.e., making extensive use of order-of-
magnitude costs from similar projects or proposals), and uncertainty. At this stage of planning, the range
of uncertainty of total project cost is high. Due to the early stage of the project, it is standard practice to
place a broad accuracy range around the point cost estimate. The estimated accuracy range for the
opinions of probable cost developed as part of this analysis is -30% to +50%. All estimated construction
costs are presented in 2018 U.S. dollars and include costs for engineering and project administration.
Quantities are estimated with calculations based on site development assumptions as described for each
potential flood risk reduction option. Dimensions, areas and volumes were assumed based on LiDAR
elevation data and current understanding of proposed grading. For each potential flood risk reduction
To: Jessica Wilson and Ross Bintner, City of Edina From: Cory Anderson, Sarah Stratton, and Janna Kieffer Subject: Morningside Neighborhood Flood Risk Reduction Strategy Conceptual Study Date: November 19, 2018 Page: 6
P:\Mpls\23 MN\27\23271649 Morningside FRRS Study\WorkFiles\Technical Summary Memo\Morningside FRRS Exec Summary Memo_11192018.docx
option considered, planning-level opinion of costs do not include land acquisition or coordination with
residents or other subcontractors.
The opinion of probable cost provided in this report is made on the basis of Barr Engineering’s experience
and qualifications and represents our best judgment as experienced and qualified professionals familiar
with the project. It is acknowledged that additional investigations and additional site specific information
that become available in the next stage of study or design may result in changes to the assumed
configuration, cost and functioning of project features. In addition, because we have no control over the
eventual cost of labor, materials, equipment or services furnished by others, or over the contractor’s
methods of determining prices, or over competitive bidding or market conditions, Barr cannot and does
not guarantee that proposals, bids, or actual costs will not vary from the planning-level opinion of
probable costs presented.
6.0 References
1. City of Edina. 2018 Comprehensive Water Resources Management Plan. Edina, MN : s.n., July 2018.
2. Barr Engineering Co. Annualized Damage Method - Barr to Edina Round 2 - with Macro.xlsm. [Excel File]
September 14, 2018.
3. FEMA. Estimated Flood Loss Potential Tables. Flood Loss Estimations 2017. [Online] [Original data
source: National Flood Services, FloodTools.com] [Cited: September 1, 2018.]
https://www.fema.gov/media-library-data/1499290622913-
0bcd74f47bf20aa94998a5a920837710/Flood_Loss_Estimations_2017.pdf.
4. City of Edina. Edina Morningside Neighborhood Flood Risk Reduction Concepts. Edina, MN : s.n.,
September 2018.
To: Jessica Wilson and Ross Bintner, City of Edina From: Cory Anderson, Sarah Stratton, and Janna Kieffer Subject: Morningside Neighborhood Flood Risk Reduction Strategy Conceptual Study Date: November 19, 2018 Page: 7
P:\Mpls\23 MN\27\23271649 Morningside FRRS Study\WorkFiles\Technical Summary Memo\Morningside FRRS Exec Summary Memo_11192018.docx
Attachment A
Map Figures of the Flood Improvement Options
970 foot flood wall (top elev=871 ft)
456717
45673
France Ave SW 44th St
W 42nd St Grimes Ave W 39th St Ewing Ave SMorningside Rd
W 40th St Alden Dr Scott Ter Lynn Ave Kipling Ave Wood Da
le
Ave
S
Branson St Crocker Ave Monterey Ave Sunnyside Rd Lynn Ave SVallacher Ave Joppa Ave SKipling Ave SNatchez Ave SW 41st St Inglewood Ave SDar
t
A
ve
W 40th La Eaton Pl Ottawa Ave SW 45th StOakdale Ave C
u
r
v
e
A
v
e
Inglewood AveW 42 1/2 St
Colgate
A
v
e
Glendale Ter
Little St Monterey Ave SNatchez Ave Waveland Ter Glenhurst Ave SSunnyside Ave Ewing Ave SOttawa Ave SLynn Ave W 41st St Ottawa Ave SW 40th St
W 45th St Oakdale
Ave
Figure A-1
PROPOSED FLOOD RISK
REDUCTION OPTION -
OPTION 2BMorningside Neighborhood City of Edina
Barr Footer: ArcGIS 10.6, 2018-07-06 12:23 File: I:\Client\Edina\Projects\Morningside FRRS 23271649\Maps\Figure X Option 2b.mxd User: sms
Option 2B Proposed Storm Sewer Size Increase (up to 60")
Option 2B Flood Wall
!>Existing Manhole/Catch Basin
Existing Storm Sewer
Subwatersheds
Parcels 0 240 480Feet
!;N
Note: Vertical datum for all listed elevations is NGVD29
Imagery: USDA NRCS NAIP, 2017
Excavate 4.3 ac-ft580 foot berm (top elev = 874 ft)
Excavate 16.3 ac-ft970 foot flood wall (top elev = 870 ft)
Excavate 8.0 ac-ft
Excavate 13.6 ac-ft
Excavate 2.3 ac-ft
456717
45673
France Ave SW 44th St
W 42nd St Grimes Ave W 39th St Ewing Ave SMorningside Rd
W 40th St Alden Dr Scott Ter Lynn Ave Kipling Ave Wood Da
le
Ave
S
Branson St Crocker Ave Sunnyside Rd Lynn Ave SVallacher Ave Joppa Ave SKipling Ave SNatchez Ave SW 41st St Inglewood Ave SDar
t
A
ve
W 40th La Eaton Pl Ottawa Ave SW 45th StOakdale Ave Cu
r
v
e
A
v
e
W 42 1/2 St
Colgate
A
v
e
Glendale Ter
Little St Monterey Ave SNatchez Ave Waveland Ter Glenhurst Ave SSunnyside Ave Ewing Ave SOttawa Ave SLynn Ave W 41st St Ottawa Ave SW 40th St
W 45th St Oa
k
da
le
A
ve
Figure A-2
PROPOSED FLOOD RISK
REDUCTION OPTION - OPTION 3AMorningside Neighborhood City of Edina
Barr Footer: ArcGIS 10.6, 2018-07-06 12:22 File: I:\Client\Edina\Projects\Morningside FRRS 23271649\Maps\Figure X Option 3a.mxd User: sms
Option 3A Berm / Flood Wall
Option 3A Excavation
Option 3A Culvert
!>Existing Manhole/Catch Basin
Existing Storm Sewer
Subwatersheds
Parcels 0 240 480Feet
!;N
Imagery: USDA NRCS NAIP, 2017
Note: Vertical datum for all listed elevations is NGVD29
456717
45673
France Ave SW 44th St
W 42nd St Grimes Ave W 39th St Ewing Ave SMorningside Rd
W 40th St Alden Dr Scott Ter Lynn Ave Kipling Ave Wood Da
le
Ave
S
Branson St Crocker Ave Monterey Ave Sunnyside Rd Lynn Ave SVallacher Ave Joppa Ave SKipling Ave SNatchez Ave SW 41st St Inglewood Ave SDar
t
A
ve
W 40th La Eaton Pl Ottawa Ave SW 45th StOakdale Ave C
u
r
v
e
A
v
e
Inglewood AveW 42 1/2 St
Colgate
A
v
e
Glendale Ter
Little St Monterey Ave SNatchez Ave Waveland Ter Glenhurst Ave SSunnyside Ave Ewing Ave SOttawa Ave SLynn Ave W 41st St Ottawa Ave SW 40th St
W 45th St Oakdale
Ave
Figure A-3
PROPOSED FLOOD RISK
REDUCTION OPTION - OPTION 4AMorningside Neighborhood City of Edina
Barr Footer: ArcGIS 10.6, 2018-07-06 12:26 File: I:\Client\Edina\Projects\Morningside FRRS 23271649\Maps\Figure X Option 4a.mxd User: sms
Option 4A Predictive Pumping
Option 4A Excavation
!>Existing Manhole/Catch Basin
Existing Storm Sewer
Subwatersheds
Parcels 0 240 480Feet
!;N
Imagery: USDA NRCS NAIP, 2017
Note: Vertical datum for all listed elevations is NGVD29
Excavate 9.4 ac-ft
Predictive Pumping at 4.2 cfs for 24 hrs Predictive Pumping at 9.3 cfs for 24 hrs
456717
45673
France Ave SW 44th St
W 42nd St Grimes Ave W 39th St Ewing Ave SMorningside Rd
W 40th St Alden Dr Scott Ter Lynn Ave Kipling Ave Wood Da
le
Ave
S
Branson St Crocker Ave Monterey Ave Sunnyside Rd Lynn Ave SVallacher Ave Joppa Ave SKipling Ave SNatchez Ave SW 41st St Inglewood Ave SDar
t
A
ve
W 40th La Eaton Pl Ottawa Ave SW 45th StOakdale Ave C
u
r
v
e
A
v
e
Inglewood AveW 42 1/2 St
Colgate
A
v
e
Glendale Ter
Little St Monterey Ave SNatchez Ave Waveland Ter Glenhurst Ave SSunnyside Ave Ewing Ave SOttawa Ave SLynn Ave W 41st St Ottawa Ave SW 40th St
W 45th St Oakdale
Ave
Figure A-4
PROPOSED FLOOD RISK
REDUCTION OPTION - OPTION 5AMorningside Neighborhood City of Edina
Barr Footer: ArcGIS 10.6, 2018-07-06 15:53 File: I:\Client\Edina\Projects\Morningside FRRS 23271649\Maps\Figure X Option 5a.mxd User: sms
Option 5A Underground Storage
Option 5A Weir
!>Existing Manhole/Catch Basin
Existing Storm Sewer
Subwatersheds
Parcels 0 240 480Feet
!;N
Note: Vertical datum for all listed elevations is NGVD29
Imagery: USDA NRCS NAIP, 2017
Underground Storage 5.7 ac-ft Underground Storage 47.6 ac-ft
970 foot flood wall (top elev = 871 ft)
Excavate 4.3 ac-ft580 foot berm (top elev = 874 ft)
456717
45673
France Ave SW 44th St
W 42nd St Grimes Ave W 39th St Ewing Ave SMorningside Rd
W 40th St Alden Dr Scott Ter Lynn Ave Kipling Ave Wood Da
le
Ave
S
Branson St Crocker Ave Monterey Ave Sunnyside Rd Lynn Ave SVallacher Ave Joppa Ave SKipling Ave SNatchez Ave SW 41st St Inglewood Ave SDar
t
A
ve
W 40th La Eaton Pl Ottawa Ave SW 45th StOakdale Ave Cu
r
v
e
A
v
e
Inglewood Ave W 42 1/2 St
Colgate
A
v
e
Glendale Ter
Little St Monterey Ave SNatchez Ave Waveland Ter Glenhurst Ave SSunnyside Ave Ewing Ave SOttawa Ave SLynn Ave W 41st St Ottawa Ave SW 40th St
W 45th St Oakdale
Ave
Figure A-5
PROPOSED FLOOD RISK
REDUCTION OPTION - OPTION 7BMorningside Neighborhood City of Edina
Barr Footer: ArcGIS 10.6, 2018-07-06 12:35 File: I:\Client\Edina\Projects\Morningside FRRS 23271649\Maps\Figure X Option 7b.mxd User: sms
Option 3A Berm / Flood Wall
Option 4A Predictive Pumping
Option 4A Excavation
Option 3A Excavation
!>Existing Manhole/Catch Basin
Existing Storm Sewer
Subwatersheds
Parcels 0 240 480Feet
!;N
Imagery: USDA NRCS NAIP, 2017
Note: Vertical datum for all listed elevations is NGVD29
Excavate 2.3 ac-ft
Excavate 9.4 ac-ft
Predictive Pumping at 9.3 cfs for 24 hrs
Predictive Pumping at 4.2 cfs for 24 hrs
456717
45673
France Ave SW 44th St
W 42nd St Grimes Ave W 39th St Ewing Ave SMorningside Rd
W 40th St Alden Dr Scott Ter Lynn Ave Kipling Ave Wood Da
le
Ave
S
Branson St Crocker Ave Monterey Ave Sunnyside Rd Lynn Ave SVallacher Ave Joppa Ave SKipling Ave SNatchez Ave SW 41st St Inglewood Ave SDar
t
A
ve
W 40th La Eaton Pl Ottawa Ave SW 45th StOakdale Ave Cu
r
v
e
A
v
e
Inglewood AveW 42 1/2 St
Colgate
A
v
e
Glendale Ter
Little St Monterey Ave SNatchez Ave Waveland Ter Glenhurst Ave SSunnyside Ave Ewing Ave SOttawa Ave SLynn Ave W 41st St Ottawa Ave SW 40th St
W 45th St Oakdale
Ave
Figure A-6
PPROPOSED FLOOD RISK
REDUCTION OPTION - OPTION 8Morningside Neighborhood City of Edina
Barr Footer: ArcGIS 10.6, 2018-07-06 12:49 File: I:\Client\Edina\Projects\Morningside FRRS 23271649\Maps\Figure X Option 8.mxd User: sms
Option 8 Proposed Storm Sewer Invert Changes
Option 8 Berm
Option 8 Excavation
Option 8 Culvert
!>Existing Manhole/Catch Basin
Existing Storm Sewer
Subwatersheds
Parcels
0 240 480Feet
!;N
Note: Vertical datum for all listed elevations is NGVD29
Imagery: USDA NRCS NAIP, 2017
Excavate 16.3 ac-ftLower NWL by 1.93 ft 970 foot flood wall (top elev = 870 ft)
Excavate 23.3 ac-ft
456717
45673
France Ave SW 44th St
W 42nd St Grimes Ave W 39th St Ewing Ave SMorningside Rd
W 40th St Alden Dr Scott Ter Lynn Ave Kipling Ave Wood Da
le
Ave
S
Branson St Crocker Ave Monterey Ave Sunnyside Rd Lynn Ave SVallacher Ave Joppa Ave SKipling Ave SNatchez Ave SW 41st St Inglewood Ave SDar
t
A
ve
W 40th La Eaton Pl Ottawa Ave SW 45th StOakdale Ave C
u
r
v
e
A
v
e
Inglewood AveW 42 1/2 St
Colgate
A
v
e
Glendale Ter
Little St Monterey Ave SNatchez Ave Waveland Ter Glenhurst Ave SSunnyside Ave Ewing Ave SOttawa Ave SLynn Ave W 41st St Ottawa Ave SW 40th St
W 45th St Oakdale
Ave
Figure A-7
PROPOSED FLOOD RISK
REDUCTION OPTION - OPTION 9Morningside Neighborhood City of Edina
Barr Footer: ArcGIS 10.6, 2018-07-06 15:56 File: I:\Client\Edina\Projects\Morningside FRRS 23271649\Maps\Figure X Option 9.mxd User: sms
Option 8 Proposed Storm Sewer Invert Changes
Option 5A Underground Storage
Option 5A Weir
Option 8 Berm
Option 8 Excavation
Option 8 Culvert
!>Existing Manhole/Catch Basin
Existing Storm Sewer
Subwatersheds
Parcels
0 240 480Feet
!;N
Note: Vertical datum for all listed elevations is NGVD29
Imagery: USDA NRCS NAIP, 2017
UndergroundStorage 5.7 ac-ft
Excavate 16.3 ac-ftLower NWL by 1.93 ft 970 foot flood wall (top elev = 870 ft)
Excavate 23.3 ac-ft
To: Jessica Wilson and Ross Bintner, City of Edina From: Cory Anderson, Sarah Stratton, and Janna Kieffer Subject: Morningside Neighborhood Flood Risk Reduction Strategy Conceptual Study Date: November 19, 2018 Page: 15
P:\Mpls\23 MN\27\23271649 Morningside FRRS Study\WorkFiles\Technical Summary Memo\Morningside FRRS Exec Summary Memo_11192018.docx
Attachment B
Engineer’s Opinion of Probable Project Cost for Flood Improvement Options
PREPARED BY: BARR ENGINEERING COMPANY SHEET: 1 OF 7
BY:KJN2 DATE:7/6/2018
FEASIBILITY STUDY CHECKED BY: KAL DATE: 7/6/2018
ENGINEER'S OPINION OF PROBABLE PROJECT COST APPROVED BY:DATE:
PROJECT:Morningside FRRS Study ISSUED:DATE:
LOCATION:City of Edina ISSUED:DATE:
PROJECT #:23/27-1649.00 ISSUED:DATE:
OPINION OF COST - SUMMARY ISSUED:DATE:
Engineer's Opinion of Probable Project Cost
Morningside Flood Mitigation Feasibility Project
Option 2B
Cat.ESTIMATED
No.ITEM DESCRIPTION UNIT QUANTITY UNIT COST ITEM COST NOTES
A Mobilization/Demobilization (10%)LS 1 $240,000.00 $240,000.00 1,2,3,4,5,6
B Temporary Erosion Control LS 1 $30,000.00 $30,000.00 1,2,3,4,5,6
C Flotation Silt Curtain LF 900 $11.00 $9,900.00 1,2,3,4,5,6
D Remove and Dispose of Existing Storm Sewer LF 4,580 $20.00 $91,600.00 1,2,3,4,5,6
E Remove and Dispose of Existing Manhole/Catch Basin Each 22 $750.00 $16,500.00 1,2,3,4,5,6
F 24" RC Pipe Sewer (Furnish and Install) (12 - 13' depth)LF 278 $110.00 $30,580.00 1,2,3,4,5,6,7
G 36" RC Pipe Sewer (Furnish and Install) (8 - 13' depth)LF 710 $170.00 $120,700.00 1,2,3,4,5,6,7
H 48" RC Pipe Sewer (Furnish and Install) (15' depth)LF 368 $270.00 $99,360.00 1,2,3,4,5,6,7
I 60" RC Pipe Sewer (Furnish and Install) (8 - 10' depth)LF 840 $225.00 $189,000.00 1,2,3,4,5,6,7
J 60" RC Pipe Sewer (Furnish and Install) (10 - 16' depth)LF 2,630 $340.00 $894,200.00 1,2,3,4,5,6,7
K Construct Drainage Structure SD-48 LF 14 $372.00 $5,208.00 1,2,3,4,5,6
L Construct Drainage Structure SD-60 LF 56 $608.00 $34,048.00 1,2,3,4,5,6
M Construct Drainage Structure SD-72 LF 14 $804.00 $11,256.00 1,2,3,4,5,6
N Construct Drainage Structure SD-84 LF 224 $1,450.00 $324,800.00 1,2,3,4,5,6
O Casting Assembly Each 22 $750.00 $16,500.00 1,2,3,4,5,6
P Tie-In Existing Storm Sewer Main to Manhole Each 6 $1,000.00 $6,000.00 1,2,3,4,5,6
Q Connect CB Leads to Constructed Storm Sewer Each 38 $700.00 $26,600.00 1,2,3,4,5,6
R Excavation CY 1,110 $4.00 $4,440.00 1,2,3,4,5,6
S Offsite Disposal of Excavated Material CY 890 $16.00 $14,240.00 1,2,3,4,5,6
T Site Grading SY 2,230 $2.00 $4,460.00 1,2,3,4,5,6
U Reinforced Structural Concrete Flood Wall CY 450 $1,000.00 $450,000.00 1,2,3,4,5,6
V Clearing and Grubbing AC 1 $6,000.00 $6,000.00 1,2,3,4,5,6
W Tree 2", B&B Each 20 $500.00 $10,000.00 1,2,3,4,5,6
X Turf Establishment (w/ Disc Anchored Mulch)AC 1 $3,000.00 $3,000.00 1,2,3,4,5,6
CONSTRUCTION SUBTOTAL $2,638,000.00 1,2,3,4,5,6,7,8
CONSTRUCTION CONTINGENCY (30%)$791,000.00 1,5,8
ESTIMATED CONSTRUCTION COST $3,429,000.00 1,2,3,4,5,6,7,8
ENGINEERING, DESIGN, PERMITTING, AND CONSTRUCTION
OBSERVATION (30%)$1,029,000.00 1,2,3,4,5,8
RESIDENTIAL/CONSTRUCTION PERMANENT EASEMENT $11,000.00 1,2,3,5,8
ESTIMATED TOTAL PROJECT COST $4,469,000.00 1,2,3,4,5,6,7,8
-30%$3,129,000.00 5,8
50%$6,704,000.00 5,8
Notes
6 Estimate costs are to design, construct, and permit each alternative. The estimated costs do not include maintenance, monitoring or additional tasks
following construction.
8 Estimate costs are reported to nearest thousand dollars.
ESTIMATED ACCURACY RANGE
1 Limited Design Work Completed
2 Quantities Based on Design Work Completed.
3 Unit Prices Based on Information Available at This Time.
4 Minimal Soil and Field Investigations Completed. Costs do not included remediation of contaminated soils (if found).
5 This feasibility-level (Class 4, 10-15% design completion per ASTM E 2516-06) cost estimate is based on feasibility-level designs, alignments, quantities and
unit prices. Costs will change with further design. Time value-of-money escalation costs are not included. A construction schedule is not available at this
time. Contingency is an allowance for the net sum of costs that will be in the Final Total Project Cost at the time of the completion of design, but are not
included at this level of project definition. The estimated accuracy range for the Total Project Cost as the project is defined is -30% to +50%. The accuracy
range is based on professional judgement considering the level of design completed, the complexity of the project and the uncertainties in the project as
scoped. The contingency and the accuracy range are not intended to include costs for future scope changes that are not part of the project as currently
scoped or costs for risk contingency. Operation and Maintenance costs are not included.
7 Furnish and Install pipe cost per lineal foot includes all trenching, bedding, backfilling, compaction, and disposal of excess materials
\\barr.com\projects\Mpls\23 MN\27\23271649 Morningside FRRS Study\WorkFiles\Cost Estimates\Engineers Opinion of Probable Cost_20180704.xlsx 1
PREPARED BY: BARR ENGINEERING COMPANY SHEET: 2 OF 7
BY:KJN2 DATE:7/6/2018
FEASIBILITY STUDY CHECKED BY: KAL DATE: 7/6/2018
ENGINEER'S OPINION OF PROBABLE PROJECT COST APPROVED BY:DATE:
PROJECT:Morningside FRRS Study ISSUED:DATE:
LOCATION:City of Edina ISSUED:DATE:
PROJECT #:23/27-1649.00 ISSUED:DATE:
OPINION OF COST - SUMMARY ISSUED:DATE:
Engineer's Opinion of Probable Project Cost
Morningside Flood Mitigation Feasibility Project
Option 3A
Cat.ESTIMATED
No.ITEM DESCRIPTION UNIT QUANTITY UNIT COST ITEM COST NOTES
A Mobilization/Demobilization (10%)LS 1 $270,000.00 $270,000.00 1,2,3,4,5,6
B Temporary Erosion Control LS 1 $30,000.00 $30,000.00 1,2,3,4,5,6
C Dewatering LS 1 $50,000.00 $50,000.00 1,2,3,4,5,6
D Flotation Silt Curtain LF 1,000 $11.00 $11,000.00 1,2,3,4,5,6
E Remove Existing Sports Infrastructure LS 1 $15,000.00 $15,000.00 1,2,3,4,5,6
F Excavation CY 72,903 $4.00 $291,613.33 1,2,3,4,5,6
G Off Site Disposal of Excavated Material CY 72,290 $16.00 $1,156,634.07 1,2,3,4,5,6
H Site Grading SY 125,540 $2.00 $251,080.00 1,2,3,4,5,6
I Place On-Site Soil for Berm Construction CY 1,504 $5.00 $7,518.52 1,2,3,4,5,6
J 36" RC Pipe Sewer (Furnish and Install) (5' - 8' depth)LF 50 $110.00 $5,500.00 1,2,3,4,5,6,7
K 36" RC Pipe Sewer Flared End Section (Furnish and Install)Each 2 $1,540.00 $3,080.00 1,2,3,4,5,6
L MnDOT Class IV RipRap with Filter Fabric TON 53 $100.00 $5,275.00 1,2,3,4,5,6
M Reinforced Structural Concrete Flood Wall CY 450 $1,000.00 $450,000.00 1,2,3,4,5,6
N Clearing and Grubbing AC 9 $6,000.00 $54,000.00 1,2,3,4,5,6
O Upland Native Vegetation AC 5 $5,000.00 $25,000.00 1,2,3,4,5,6
P Tree 2", B&B Each 150 $500.00 $75,000.00 1,2,3,4,5,6
Q Turf Establishment (w/ Disc Anchored Mulch)AC 17 $3,000.00 $52,314.05 1,2,3,4,5,6
R Sod SY 4,840 $6.00 $29,040.00 1,2,3,4,5,6
S Erosion Control Blanket SY 29,476 $2.00 $58,951.20 1,2,3,4,5,6
T Wetland Restoration AC 2.5 $10,000.00 $25,000.00 1,2,3,4,5,6
U Reconstruction of Baseball Field LS 1 $75,000.00 $75,000.00 1,2,3,4,5,6
V Reconstruction of Ice Rink LS 1 $25,000.00 $25,000.00 1,2,3,4,5,6
CONSTRUCTION SUBTOTAL $2,966,000.00 1,2,3,4,5,6,7,8
CONSTRUCTION CONTINGENCY (30%)$890,000.00 1,5,8
ESTIMATED CONSTRUCTION COST $3,856,000.00 1,2,3,4,5,6,7,8
ENGINEERING, DESIGN, PERMITTING, AND CONSTRUCTION
OBSERVATION (30%)$1,157,000.00 1,2,3,4,5,8
RESIDENTIAL/CONSTRUCTION PERMANENT EASEMENT $56,000.00 1,2,3,5,8
ESTIMATED TOTAL PROJECT COST $5,069,000.00 1,2,3,4,5,6,7,8
-30%$3,549,000.00 5,8
50%$7,604,000.00 5,8
Notes
6 Estimate costs are to design, construct, and permit each alternative. The estimated costs do not include maintenance, monitoring or additional tasks
following construction.
7 Furnish and Install pipe cost per lineal foot includes all trenching, bedding, backfilling, compaction, and disposal of excess materials
8 Estimate costs are reported to nearest thousand dollars.
ESTIMATED ACCURACY RANGE
1 Limited Design Work Completed
2 Quantities Based on Design Work Completed.
3 Unit Prices Based on Information Available at This Time.
4 Minimal Soil and Field Investigations Completed. Costs do not included remediation of contaminated soils (if found).
5 This feasibility-level (Class 4, 10-15% design completion per ASTM E 2516-06) cost estimate is based on feasibility-level designs, alignments, quantities and
unit prices. Costs will change with further design. Time value-of-money escalation costs are not included. A construction schedule is not available at this time.
Contingency is an allowance for the net sum of costs that will be in the Final Total Project Cost at the time of the completion of design, but are not included at
this level of project definition. The estimated accuracy range for the Total Project Cost as the project is defined is -30% to +50%. The accuracy range is based
on professional judgement considering the level of design completed, the complexity of the project and the uncertainties in the project as scoped. The
contingency and the accuracy range are not intended to include costs for future scope changes that are not part of the project as currently scoped or costs for
risk contingency. Operation and Maintenance costs are not included.
\\barr.com\projects\Mpls\23 MN\27\23271649 Morningside FRRS Study\WorkFiles\Cost Estimates\Engineers Opinion of Probable Cost_20180704.xlsx 2
PREPARED BY: BARR ENGINEERING COMPANY SHEET: 3 OF 7
BY:KJN2 DATE:7/6/2018
FEASIBILITY STUDY CHECKED BY: KAL DATE: 7/6/2018
ENGINEER'S OPINION OF PROBABLE PROJECT COST APPROVED BY:DATE:
PROJECT:Morningside FRRS Study ISSUED:DATE:
LOCATION:City of Edina ISSUED:DATE:
PROJECT #:23/27-1649.00 ISSUED:DATE:
OPINION OF COST - SUMMARY ISSUED:DATE:
Engineer's Opinion of Probable Project Cost
Morningside Flood Mitigation Feasibility Project
Option 4A
Cat.ESTIMATED
No.ITEM DESCRIPTION UNIT QUANTITY UNIT COST ITEM COST NOTES
A Mobilization/Demobilization (10%)LS 1 $186,000.00 $186,000.00 1,2,3,4,5,6
B Temporary Erosion Control LS 1 $30,000.00 $30,000.00 1,2,3,4,5,6
C Excavation CY 15,165 $4.00 $60,661.33 1,2,3,4,5,6
D Off Site Disposal of Excavated Material CY 15,165 $16.00 $242,645.33 1,2,3,4,5,6
E Site Grading SY 14,520 $2.00 $29,040.00 1,2,3,4,5,6
F
Opti CMAC Predictive Pumping Control System (Furnish and
Install)Each 2 $85,000.00 $170,000.00 1,2,3,4,5,6
G
2,000 GPM Pumping Station (Includes Building Structure,
Electric Supply, Control Panel)LS 1 $500,000.00 $500,000.00 1,2,3,4,5,6
H
4,000 GPM Pumping Station (Includes Building Structure,
Electric Supply, Control Panel)LS 1 $700,000.00 $700,000.00 1,2,3,4,5,6
I Pumping Station Outlet Piping (Furnish and Install)LF 1,116 $40.00 $44,640.00 1,2,3,4,5,6,7
J Pumping Station Inlet Suction Piping (Furnish and Install)LF 24 $40.00 $960.00 1,2,3,4,5,6,7
K Tie-In Storm Sewer to Existing Manhole Each 2 $1,000.00 $2,000.00 1,2,3,4,5,6
L Clearing and Grubbing AC 3.2 $6,000.00 $19,239.67 1,2,3,4,5,6
M Upland Native Vegetation AC 0.7 $5,000.00 $3,500.00 1,2,3,4,5,6
N Tree 2", B&B Each 50 $500.00 $25,000.00 1,2,3,4,5,6
O Turf Establishment (w/ Disc Anchored Mulch)AC 0.5 $3,000.00 $1,500.00 1,2,3,4,5,6
P Erosion Control Blanket SY 1,452 $2.00 $2,904.00 1,2,3,4,5,6
Q Wetland Restoration AC 2 $10,000.00 $20,000.00 1,2,3,4,5,6
CONSTRUCTION SUBTOTAL $2,038,000.00 1,2,3,4,5,6,7,8
CONSTRUCTION CONTINGENCY (30%)$611,000.00 1,5,8
ESTIMATED CONSTRUCTION COST $2,649,000.00 1,2,3,4,5,6,7,8
ENGINEERING, DESIGN, PERMITTING, AND CONSTRUCTION
OBSERVATION (30%)$795,000.00 1,2,3,4,5,8
ESTIMATED TOTAL PROJECT COST $3,444,000.00 1,2,3,4,5,6,7,8
-30%$2,411,000.00 5,8
50%$5,166,000.00 5,8
Notes
6 Estimate costs are to design, construct, and permit each alternative. The estimated costs do not include maintenance, monitoring or additional tasks
following construction.
7 Furnish and Install pipe cost per lineal foot includes all trenching, bedding, backfilling, compaction, and disposal of excess materials
8 Estimate costs are reported to nearest thousand dollars.
ESTIMATED ACCURACY RANGE
1 Limited Design Work Completed
2 Quantities Based on Design Work Completed.
3 Unit Prices Based on Information Available at This Time.
4 Minimal Soil and Field Investigations Completed. Costs do not included remediation of contaminated soils (if found).
5 This feasibility-level (Class 4, 10-15% design completion per ASTM E 2516-06) cost estimate is based on feasibility-level designs, alignments, quantities and
unit prices. Costs will change with further design. Time value-of-money escalation costs are not included. A construction schedule is not available at this time.
Contingency is an allowance for the net sum of costs that will be in the Final Total Project Cost at the time of the completion of design, but are not included at
this level of project definition. The estimated accuracy range for the Total Project Cost as the project is defined is -30% to +50%. The accuracy range is based
on professional judgement considering the level of design completed, the complexity of the project and the uncertainties in the project as scoped. The
contingency and the accuracy range are not intended to include costs for future scope changes that are not part of the project as currently scoped or costs for
risk contingency. Operation and Maintenance costs are not included.
\\barr.com\projects\Mpls\23 MN\27\23271649 Morningside FRRS Study\WorkFiles\Cost Estimates\Engineers Opinion of Probable Cost_20180704.xlsx 3
PREPARED BY: BARR ENGINEERING COMPANY SHEET: 4 OF 7
BY:KJN2 DATE:7/6/2018
FEASIBILITY STUDY CHECKED BY: KAL DATE: 7/6/2018
ENGINEER'S OPINION OF PROBABLE PROJECT COST APPROVED BY:DATE:
PROJECT:Morningside FRRS Study ISSUED:DATE:
LOCATION:City of Edina ISSUED:DATE:
PROJECT #:23/27-1649.00 ISSUED:DATE:
OPINION OF COST - SUMMARY ISSUED:DATE:
Engineer's Opinion of Probable Project Cost
Morningside Flood Mitigation Feasibility Project
Option 5A
Cat.ESTIMATED
No.ITEM DESCRIPTION UNIT QUANTITY UNIT COST ITEM COST NOTES
A Mobilization/Demobilization LS 1 $576,000.00 $576,000.00 1,2,3,4,5,6
B Temporary Erosion Control LS 1 $30,000.00 $30,000.00 1,2,3,4,5,6
C Remove Existing Sports Infrastructure LS 1 $15,000.00 $15,000.00 1,2,3,4,5,6
D Excavation CY 785,587 $4.00 $3,142,346.67 1,2,3,4,5,6
E Excavate and Haul offsite CY 112,933 $16.00 $1,806,933.33 1,2,3,4,5,6
F Site Grading SY 43,560 $2.00 $87,120.00 1,2,3,4,5,6
G Salvage and Replace Existing Topsoil CY 7,260 $9.00 $65,340.00 1,2,3,4,5,6
H StormTrap Subsurface Storage CF 2,866,250 $6.00 $17,197,500.00 1,2,3,4,5,6
I 500 GPM Pump (Subsurface Storage Drawdown)Each 1 $30,000.00 $30,000.00 1,2,3,4,5,6
J 3,500 GPM Pump (Subsurface Storage Drawndown)Each 1 $300,000.00 $300,000.00 1,2,3,4,5,6
K 36" RC Pipe Sewer (Furnish and Install) (10' - 15' depth)LF 300 $215.00 $64,500.00 1,2,3,4,5,6,7
L 42" RC Pipe Sewer (Furnish and Install) (10' - 15' depth)LF 50 $270.00 $13,500.00 1,2,3,4,5,6,7
M
Construct Drainage Structure SD-72 w/ Weir
(Diversion Structure)Each 3 $15,000.00 $45,000.00 1,2,3,4,5,6
N Tie-In Existing Storm Sewer to Manhole Each 5 $1,000.00 $5,000.00 1,2,3,4,5,6
O Clearing and Grubbing AC 1 $6,000.00 $6,000.00 1,2,3,4,5,6
P Tree 2", B&B Each 25 $500.00 $12,500.00 1,2,3,4,5,6
Q Turf Establishment (w/ Disc Anchored Mulch)AC 9.0 $3,000.00 $27,000.00 1,2,3,4,5,6
R Reconstruction of Baseball Field LS 1 $75,000.00 $75,000.00 1,2,3,4,5,6
S Reconstruction of Ice Rink LS 1 $25,000.00 $25,000.00 1,2,3,4,5,6
CONSTRUCTION SUBTOTAL $23,524,000.00 1,2,3,4,5,6,7,8
CONSTRUCTION CONTINGENCY (30%)$7,057,000.00 1,5,8
ESTIMATED CONSTRUCTION COST $30,581,000.00 1,2,3,4,5,6,7,8
ENGINEERING, DESIGN, PERMITTING, AND CONSTRUCTION
OBSERVATION $1,100,000.00 1,2,3,4,5,8
ESTIMATED TOTAL PROJECT COST $31,681,000.00 1,2,3,4,5,6,7,8
-30%$22,177,000.00 5,8
50%$47,522,000.00 5,8
Notes
6 Estimate costs are to design, construct, and permit each alternative. The estimated costs do not include maintenance, monitoring or additional tasks
following construction.
7 Furnish and Install pipe cost per lineal foot includes all trenching, bedding, backfilling, compaction, and disposal of excess materials
8 Estimate costs are reported to nearest thousand dollars.
ESTIMATED ACCURACY RANGE
1 Limited Design Work Completed
2 Quantities Based on Design Work Completed.
3 Unit Prices Based on Information Available at This Time.
4 Minimal Soil and Field Investigations Completed. Costs do not included remediation of contaminated soils (if found).
5 This feasibility-level (Class 4, 10-15% design completion per ASTM E 2516-06) cost estimate is based on feasibility-level designs, alignments, quantities and
unit prices. Costs will change with further design. Time value-of-money escalation costs are not included. A construction schedule is not available at this time.
Contingency is an allowance for the net sum of costs that will be in the Final Total Project Cost at the time of the completion of design, but are not included at
this level of project definition. The estimated accuracy range for the Total Project Cost as the project is defined is -30% to +50%. The accuracy range is based
on professional judgement considering the level of design completed, the complexity of the project and the uncertainties in the project as scoped. The
contingency and the accuracy range are not intended to include costs for future scope changes that are not part of the project as currently scoped or costs for
risk contingency. Operation and Maintenance costs are not included.
\\barr.com\projects\Mpls\23 MN\27\23271649 Morningside FRRS Study\WorkFiles\Cost Estimates\Engineers Opinion of Probable Cost_20180704.xlsx 4
PREPARED BY: BARR ENGINEERING COMPANY SHEET: 5 OF 7
BY:KJN2 DATE:7/6/2018
FEASIBILITY STUDY CHECKED BY: KAL DATE: 7/6/2018
ENGINEER'S OPINION OF PROBABLE PROJECT COST APPROVED BY:DATE:
PROJECT:Morningside FRRS Study ISSUED:DATE:
LOCATION:City of Edina ISSUED:DATE:
PROJECT #:23/27-1649.00 ISSUED:DATE:
OPINION OF COST - SUMMARY ISSUED:DATE:
Engineer's Opinion of Probable Project Cost
Morningside Flood Mitigation Feasibility Project
Option 7B
Cat.ESTIMATED
No.ITEM DESCRIPTION UNIT QUANTITY UNIT COST ITEM COST NOTES
A Mobilization/Demobilization (10%)LS 1 $455,000.00 $455,000.00 1,2,3,4,5,6
B Temporary Erosion Control LS 1 $30,000.00 $30,000.00 1,2,3,4,5,6
C Excavation CY 26,923 $4.00 $107,693.33 1,2,3,4,5,6
D Off Site Disposal of Excavated Material CY 25,200 $16.00 $403,194.07 1,2,3,4,5,6
E Site Grading SY 40,712 $2.00 $81,424.44 1,2,3,4,5,6
Place On-Site Soil for Berm Construction CY 1,504 $5.00 $7,518.52 1,2,3,4,5,6
F Reinforced Structural Concrete Flood Wall CY 450 $1,000.00 $450,000.00 1,2,3,4,5,6
G Flotation Silt Curtain LF 900 $11.00 $9,900.00 1,2,3,4,5,6
H Remove and Dispose of Existing Storm Sewer LF 4,580 $20.00 $91,600.00 1,2,3,4,5,6
I Remove and Dispose of Existing Manhole/Catch Basin Each 22 $750.00 $16,500.00 1,2,3,4,5,6
J 24" RC Pipe Sewer (Furnish and Install) (12 - 13' depth)LF 278 $110.00 $30,580.00 1,2,3,4,5,6,7
K 36" RC Pipe Sewer (Furnish and Install) (8 - 13' depth)LF 710 $170.00 $120,700.00 1,2,3,4,5,6,7
L 48" RC Pipe Sewer (Furnish and Install) (15' depth)LF 368 $270.00 $99,360.00 1,2,3,4,5,6,7
M 60" RC Pipe Sewer (Furnish and Install) (8 - 10' depth)LF 840 $225.00 $189,000.00 1,2,3,4,5,6,7
N 60" RC Pipe Sewer (Furnish and Install) (10 - 16' depth)LF 2,630 $340.00 $894,200.00 1,2,3,4,5,6,7
O Construct Drainage Structure SD-48 LF 14 $372.00 $5,208.00 1,2,3,4,5,6
P Construct Drainage Structure SD-60 LF 56 $608.00 $34,048.00 1,2,3,4,5,6
Q Construct Drainage Structure SD-72 LF 14 $804.00 $11,256.00 1,2,3,4,5,6
R Construct Drainage Structure SD-84 LF 224 $1,450.00 $324,800.00 1,2,3,4,5,6
S Casting Assembly Each 22 $750.00 $16,500.00 1,2,3,4,5,6
T Tie-In Storm Sewer Main to Manhole Each 9 $1,000.00 $9,000.00 1,2,3,4,5,6
U Connect CB Leads to Constructed Storm Sewer Each 38 $700.00 $26,600.00 1,2,3,4,5,6
V
Opti CMAC Predictive Pumping Control System (Furnish and
Install)Each 2 $85,000.00 $170,000.00 1,2,3,4,5,6
W
2,000 GPM Pumping Station (Includes Building Structure,
Electric Supply, Control Panel)LS 1 $500,000.00 $500,000.00 1,2,3,4,5,6
X
4,000 GPM Pumping Station (Includes Building Structure,
Electric Supply, Control Panel)LS 1 $700,000.00 $700,000.00
Y Pumping Station Outlet Piping (Furnish and Install)LF 1,116 $40.00 $44,640.00 1,2,3,4,5,6,7
Z Pumping Station Inlet Suction Piping (Furnish and Install)LF 24 $40.00 $960.00 1,2,3,4,5,6,7
AA Clearing and Grubbing AC 6 $6,000.00 $33,994.49 1,2,3,4,5,6
BB Upland Native Vegetation AC 0.7 $5,000.00 $3,500.00 1,2,3,4,5,6
CC Wetland Restoration AC 2.0 $10,000.00 $20,000.00 1,2,3,4,5,6
DD Tree 2", B&B Each 150 $500.00 $75,000.00 1,2,3,4,5,6
EE Turf Establishment (w/ Disc Anchored Mulch)AC 4.7 $3,000.00 $14,134.85 1,2,3,4,5,6
FF Sod SY 4,840 $3.00 $14,520.00 1,2,3,4,5,6
GG Erosion Control Blanket SY 5,324 $2.00 $10,648.00 1,2,3,4,5,6
CONSTRUCTION SUBTOTAL $5,001,000.00 1,2,3,4,5,6,7,8
CONSTRUCTION CONTINGENCY (30%)$1,500,000.00 1,5,8
ESTIMATED CONSTRUCTION COST $6,501,000.00 1,2,3,4,5,6,7,8
ENGINEERING, DESIGN, PERMITTING, AND CONSTRUCTION
OBSERVATION (30%)$1,950,000.00 1,2,3,4,5,8
RESIDENTIAL/CONSTRUCTION PERMANENT EASEMENT $56,000.00 1,2,3,5,8
ESTIMATED TOTAL PROJECT COST $8,507,000.00 1,2,3,4,5,6,7,8
-30%$5,955,000.00 5,8
50%$12,761,000.00 5,8
Notes
6 Estimate costs are to design, construct, and permit each alternative. The estimated costs do not include maintenance, monitoring or additional tasks
following construction.
7 Furnish and Install pipe cost per lineal foot includes all trenching, bedding, backfilling, compaction, and disposal of excess materials
8 Estimate costs are reported to nearest thousand dollars.
ESTIMATED ACCURACY RANGE
1 Limited Design Work Completed
2 Quantities Based on Design Work Completed.
3 Unit Prices Based on Information Available at This Time.
4 Minimal Soil and Field Investigations Completed. Costs do not included remediation of contaminated soils (if found).
5 This feasibility-level (Class 4, 10-15% design completion per ASTM E 2516-06) cost estimate is based on feasibility-level designs, alignments, quantities and
unit prices. Costs will change with further design. Time value-of-money escalation costs are not included. A construction schedule is not available at this time.
Contingency is an allowance for the net sum of costs that will be in the Final Total Project Cost at the time of the completion of design, but are not included at
this level of project definition. The estimated accuracy range for the Total Project Cost as the project is defined is -30% to +50%. The accuracy range is based
on professional judgement considering the level of design completed, the complexity of the project and the uncertainties in the project as scoped. The
contingency and the accuracy range are not intended to include costs for future scope changes that are not part of the project as currently scoped or costs for
risk contingency. Operation and Maintenance costs are not included.
\\barr.com\projects\Mpls\23 MN\27\23271649 Morningside FRRS Study\WorkFiles\Cost Estimates\Engineers Opinion of Probable Cost_20180704.xlsx 5
PREPARED BY: BARR ENGINEERING COMPANY SHEET: 6 OF 7
BY:KJN2 DATE:7/6/2018
FEASIBILITY STUDY CHECKED BY: KAL DATE: 7/6/2018
ENGINEER'S OPINION OF PROBABLE PROJECT COST APPROVED BY:DATE:
PROJECT:Morningside FRRS Study ISSUED:DATE:
LOCATION:City of Edina ISSUED:DATE:
PROJECT #:23/27-1649.00 ISSUED:DATE:
OPINION OF COST - SUMMARY ISSUED:DATE:
Engineer's Opinion of Probable Project Cost
Morningside Flood Mitigation Feasibility Project
Option 8
Cat.ESTIMATED
No.ITEM DESCRIPTION UNIT QUANTITY UNIT COST ITEM COST NOTES
A Mobilization/Demobilization (10%)LS 1 $278,000.00 $278,000.00 1,2,3,4,5,6
B Temporary Erosion Control LS 1 $30,000.00 $30,000.00 1,2,3,4,5,6
C Dewatering LS 1 $50,000.00 $50,000.00 1,2,3,4,5,6
D Flotation Silt Curtain LF 1,000 $11.00 $11,000.00 1,2,3,4,5,6
E Remove Existing Sports Infrastructure LS 1 $15,000.00 $15,000.00 1,2,3,4,5,6
F Excavation CY 64,998 $4.00 $259,992.00 1,2,3,4,5,6
G Off Site Disposal of Excavated Material CY 64,778 $16.00 $1,036,448.00 1,2,3,4,5,6
H Site Grading SY 87,070 $2.00 $174,140.00 1,2,3,4,5,6
I Reinforced Structural Concrete Flood Wall CY 450 $1,000.00 $450,000.00 1,2,3,4,5,6
J Remove and Dispose of Existing Storm Sewer LF 1,190 $20.00 $23,800.00 1,2,3,4,5,6
K Remove and Dispose of Existing Manhole/Catch Basin Each 4 $750.00 $3,000.00 1,2,3,4,5,6
L 30" RC Pipe Sewer (Furnish and Install) (8 - 16' depth)LF 910 $160.00 $145,600.00 1,2,3,4,5,6,7
M 42" RC Pipe Sewer (Furnish and Install) (8 - 16' depth)LF 280 $250.00 $70,000.00 1,2,3,4,5,6,7
N Construct Drainage Structure SD-60 LF 16 $608.00 $9,728.00 1,2,3,4,5,6
O Construct Drainage Structure SD-72 LF 42 $804.00 $33,768.00 1,2,3,4,5,6
P Casting Assembly Each 4 $750.00 $3,000.00 1,2,3,4,5,6
Q Tie-In Storm Sewer Main to Manhole Each 3 $1,000.00 $3,000.00 1,2,3,4,5,6
R Connect CB Leads to Constructed Storm Sewer Each 2 $700.00 $1,400.00 1,2,3,4,5,6
S 6' x 8' Box Culvert (Furnish and Install)LF 100 $1,000.00 $100,000.00 1,2,3,4,5,6,7
T 6' x 8' Box Culvert End Section (Furnish and Install)Each 4 $10,000.00 $40,000.00 1,2,3,4,5,6
U MnDOT Class IV RipRap with Filter Fabric TON 248 $100.00 $24,800.00 1,2,3,4,5,6
V Clearing and Grubbing AC 5 $6,000.00 $30,000.00 1,2,3,4,5,6
W Upland Native Vegetation AC 4.5 $5,000.00 $22,500.00 1,2,3,4,5,6
X Tree 2", B&B Each 100 $500.00 $50,000.00 1,2,3,4,5,6
Y Turf Establishment (w/ Disc Anchored Mulch)AC 13.0 $3,000.00 $38,969.01 1,2,3,4,5,6
Z Erosion Control Blanket SY 24,200 $2.00 $48,400.00 1,2,3,4,5,6
AA Reconstruction of Baseball Field LS 1 $75,000.00 $75,000.00 1,2,3,4,5,6
BB Reconstruction of Ice Rink LS 1 $25,000.00 $25,000.00 1,2,3,4,5,6
CC Wetland Restoration AC 0.5 $10,000.00 $5,000.00 1,2,3,4,5,6
CONSTRUCTION SUBTOTAL $3,058,000.00 1,2,3,4,5,6,7,8
CONSTRUCTION CONTINGENCY (30%)$917,000.00 1,5,8
ESTIMATED CONSTRUCTION COST $3,975,000.00 1,2,3,4,5,6,7,8
ENGINEERING, DESIGN, PERMITTING, AND CONSTRUCTION
OBSERVATION (30%)$1,193,000.00 1,2,3,4,5,8
RESIDENTIAL/CONSTRUCTION PERMANENT EASEMENT $11,000.00 1,2,3,5,8
ESTIMATED TOTAL PROJECT COST $5,179,000.00 1,2,3,4,5,6,7,8
-30%$3,626,000.00 5,8
50%$7,769,000.00 5,8
Notes
6 Estimate costs are to design, construct, and permit each alternative. The estimated costs do not include maintenance, monitoring or additional tasks
following construction.
7 Furnish and Install pipe cost per lineal foot includes all trenching, bedding, backfilling, compaction, and disposal of excess materials
8 Estimate costs are reported to nearest thousand dollars.
ESTIMATED ACCURACY RANGE
1 Limited Design Work Completed
2 Quantities Based on Design Work Completed.
3 Unit Prices Based on Information Available at This Time.
4 Minimal Soil and Field Investigations Completed. Costs do not included remediation of contaminated soils (if found).
5 This feasibility-level (Class 4, 10-15% design completion per ASTM E 2516-06) cost estimate is based on feasibility-level designs, alignments, quantities and
unit prices. Costs will change with further design. Time value-of-money escalation costs are not included. A construction schedule is not available at this time.
Contingency is an allowance for the net sum of costs that will be in the Final Total Project Cost at the time of the completion of design, but are not included at
this level of project definition. The estimated accuracy range for the Total Project Cost as the project is defined is -30% to +50%. The accuracy range is based
on professional judgement considering the level of design completed, the complexity of the project and the uncertainties in the project as scoped. The
contingency and the accuracy range are not intended to include costs for future scope changes that are not part of the project as currently scoped or costs for
risk contingency. Operation and Maintenance costs are not included.
\\barr.com\projects\Mpls\23 MN\27\23271649 Morningside FRRS Study\WorkFiles\Cost Estimates\Engineers Opinion of Probable Cost_20180704.xlsx 6
PREPARED BY: BARR ENGINEERING COMPANY SHEET: 7 OF 7
BY:KJN2 DATE:7/6/2018
FEASIBILITY STUDY CHECKED BY: KAL DATE: 7/6/2018
ENGINEER'S OPINION OF PROBABLE PROJECT COST APPROVED BY:DATE:
PROJECT:Morningside FRRS Study ISSUED:DATE:
LOCATION:City of Edina ISSUED:DATE:
PROJECT #:23/27-1649.00 ISSUED:DATE:
OPINION OF COST - SUMMARY ISSUED:DATE:
Engineer's Opinion of Probable Project Cost
Morningside Flood Mitigation Feasibility Project
Option 9
Cat.ESTIMATED
No.ITEM DESCRIPTION UNIT QUANTITY UNIT COST ITEM COST NOTES
A Mobilization/Demobilization (10%)LS 1 $741,000.00 $741,000.00 1,2,3,4,5,6
B Temporary Erosion Control LS 1 $30,000.00 $30,000.00 1,2,3,4,5,6
C Dewatering LS 1 $50,000.00 $50,000.00 1,2,3,4,5,6
D Flotation Silt Curtain LF 1,000 $11.00 $11,000.00 1,2,3,4,5,6
E Remove Existing Sports Infrastructure LS 1 $15,000.00 $15,000.00 1,2,3,4,5,6
F Excavation CY 113,398 $4.00 $453,592.00 1,2,3,4,5,6
G Off Site Disposal of Excavated Material CY 101,885 $16.00 $1,630,154.67 1,2,3,4,5,6
H Site Grading SY 96,750 $2.00 $193,500.00 1,2,3,4,5,6
I Salvage and Replace Existing Topsoil CY 7,260 $9.00 $65,340.00 1,2,3,4,5,6
J Reinforced Structural Concrete Flood Wall CY 450 $1,000.00 $450,000.00 1,2,3,4,5,6
K 6' x 8' Box Culvert (Furnish and Install)LF 100 $1,000.00 $100,000.00 1,2,3,4,5,6,7
L 6' x 8' Box Culvert End Section (Furnish and Install)Each 4 $10,000.00 $40,000.00 1,2,3,4,5,6
M MnDOT Class IV RipRap with Filter Fabric TON 248 $100.00 $24,800.00 1,2,3,4,5,6
N Remove and Dispose of Existing Storm Sewer LF 5,770 $20.00 $115,400.00 1,2,3,4,5,6
O Remove and Dispose of Existing Manhole/Catch Basin Each 26 $750.00 $19,500.00 1,2,3,4,5,6
P 24" RC Pipe Sewer (Furnish and Install) (12 - 13' depth)LF 278 $110.00 $30,580.00 1,2,3,4,5,6,7
Q 30" RC Pipe Sewer (Furnish and Install) (8 - 16' depth)LF 910 $160.00 $145,600.00 1,2,3,4,5,6,7
R 36" RC Pipe Sewer (Furnish and Install) (8 - 13' depth)LF 710 $170.00 $120,700.00 1,2,3,4,5,6,7
S 42" RC Pipe Sewer (Furnish and Install) (8 - 16' depth)LF 280 $250.00 $70,000.00 1,2,3,4,5,6,7
T 48" RC Pipe Sewer (Furnish and Install) (15' depth)LF 368 $270.00 $99,360.00 1,2,3,4,5,6,7
U 60" RC Pipe Sewer (Furnish and Install) (8 - 10' depth)LF 840 $225.00 $189,000.00 1,2,3,4,5,6,7
V 60" RC Pipe Sewer (Furnish and Install) (10 - 16' depth)LF 2,630 $340.00 $894,200.00 1,2,3,4,5,6,7
W Construct Drainage Structure SD-48 LF 14 $372.00 $5,208.00 1,2,3,4,5,6
X Construct Drainage Structure SD-60 LF 72 $608.00 $43,776.00 1,2,3,4,5,6
Y Construct Drainage Structure SD-72 LF 70 $804.00 $56,280.00 1,2,3,4,5,6
A Construct Drainage Structure SD-84 LF 224 $1,450.00 $324,800.00 1,2,3,4,5,6
AA Casting Assembly Each 26 $750.00 $19,500.00 1,2,3,4,5,6
BB Tie-In Storm Sewer Main to Manhole Each 9 $1,000.00 $9,000.00 1,2,3,4,5,6
CC Connect CB Leads to Constructed Storm Sewer Each 40 $700.00 $28,000.00 1,2,3,4,5,6
DD 72" Diameter Weir Manhole (Diversion Structure)Each 1 $15,000.00 $15,000.00 1,2,3,4,5,6
EE StormTrap Subsurface Storage CF 304,920 $6.00 $1,829,520.00 1,2,3,4,5,6
FF 500 GPM Pump (Subsurface Storage Drawdown)Each 1 $30,000.00 $30,000.00 1,2,3,4,5,6
GG Clearing and Grubbing AC 5 $6,000.00 $30,000.00 1,2,3,4,5,6
HH Upland Native Vegetation AC 5 $5,000.00 $22,500.00 1,2,3,4,5,6
II Tree 2", B&B Each 100 $500.00 $50,000.00 1,2,3,4,5,6
JJ Turf Establishment (w/ Disc Anchored Mulch)AC 15.0 $3,000.00 $44,969.01 1,2,3,4,5,6
KK Erosion Control Blanket SY 24,200 $2.00 $48,400.00 1,2,3,4,5,6
LL Reconstruction of Baseball Field LS 1 $75,000.00 $75,000.00 1,2,3,4,5,6
MM Reconstruction of Ice Rink LS 1 $25,000.00 $25,000.00 1,2,3,4,5,6
NN Wetland Restoration AC 0.5 $10,000.00 $5,000.00 1,2,3,4,5,6
CONSTRUCTION SUBTOTAL $8,151,000.00 1,2,3,4,5,6,7,8
CONSTRUCTION CONTINGENCY (30%)$2,445,000.00 1,5,8
ESTIMATED CONSTRUCTION COST $10,596,000.00 1,2,3,4,5,6,7,8
ENGINEERING, DESIGN, PERMITTING, AND CONSTRUCTION
OBSERVATION (30%)$3,179,000.00 1,2,3,4,5,8
RESIDENTIAL/CONSTRUCTION PERMANENT EASEMENT $11,000.00 1,2,3,5,8
ESTIMATED TOTAL PROJECT COST $13,786,000.00 1,2,3,4,5,6,7,8
-30%$9,651,000.00 5,8
50%$20,679,000.00 5,8
Notes
6 Estimate costs are to design, construct, and permit each alternative. The estimated costs do not include maintenance, monitoring or additional tasks following
construction.
7 Furnish and Install pipe cost per lineal foot includes all trenching, bedding, backfilling, compaction, and disposal of excess materials
8 Estimate costs are reported to nearest thousand dollars.
ESTIMATED ACCURACY RANGE
1 Limited Design Work Completed
2 Quantities Based on Design Work Completed.
3 Unit Prices Based on Information Available at This Time.
4 Minimal Soil and Field Investigations Completed. Costs do not included remediation of contaminated soils (if found).
5 This feasibility-level (Class 4, 10-15% design completion per ASTM E 2516-06) cost estimate is based on feasibility-level designs, alignments, quantities and unit
prices. Costs will change with further design. Time value-of-money escalation costs are not included. A construction schedule is not available at this time.
Contingency is an allowance for the net sum of costs that will be in the Final Total Project Cost at the time of the completion of design, but are not included at this
level of project definition. The estimated accuracy range for the Total Project Cost as the project is defined is -30% to +50%. The accuracy range is based on
professional judgement considering the level of design completed, the complexity of the project and the uncertainties in the project as scoped. The contingency
and the accuracy range are not intended to include costs for future scope changes that are not part of the project as currently scoped or costs for risk contingency.
Operation and Maintenance costs are not included.
\\barr.com\projects\Mpls\23 MN\27\23271649 Morningside FRRS Study\WorkFiles\Cost Estimates\Engineers Opinion of Probable Cost_20180704.xlsx 7