HomeMy WebLinkAboutItem 8 2013-03-05-Olson-Lake-Trail-Report-Amendment
CERTIFICATION
FEASIBILITY REPORT
OLSON LAKE TRAIL
SANITARY SEWER EXTENSION
A JOINT EFFORT BETWEEN:
THE CITY OF LAKE ELMO, MINNESOTA
AND THE CITY OF OAKDALE, MINNESOTA
FEBRUARY 2013
AMENDED MARCH 2013
Lake Elmo Project No: 2012.124
Oakdale Project No. 2012‐05
I hereby certify that this plan, specification, or report was prepared by me, or under
my direct supervision, and that I am a duly Licensed Professional Engineer under the
laws of the State of Minnesota.
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Chad J. Isakson | License No. 49028 | March 5, 2013
651.300.4264
FOCUS Engineering, inc.
www.FOCUSengineeringinc.com
OLSON LAKE TRAIL
SANITARY SEWER EXTENSION
CITY OF LAKE ELMO PROJECT NO. 2012.124
CITY OF OAKDALE PROJECT NO. 2012‐05
REPORT AMENDMENT
This document officially amends the Olson Lake Trail Sanitary Sewer Extension Feasibility Report dated
February 2013 that was adopted by the Lake Elmo City Council on February 19, 2013 and by the Oakdale
City Council on February 26, 2013. The purpose of this amendment is to include one additional property
to the scope of improvements to be constructed in 2013, thereby extending sanitary sewer service to
the property located at 4709 Olson Lake Trail in Lake Elmo. This addition is being made at the request of
the property owner.
The scope of the improvements have been amended to include additional construction quantities
including sewer main pipe (580 LF total), service stub pipe, and one additional grinder station for the
added property. The estimated project costs have been amended for the 2013 proposed improvements
increasing the estimated costs from $128,000 to $141,000.
The unit assessment for the project will remain unchanged at $18,500. However, the initial project in
2013 will now serve seven (7) properties; two properties in Oakdale and five (5) properties in Lake Elmo.
The Lake Elmo preliminary assessment roll has been updated to include 4709 Olson Lake Trail. The
addition of one more property assessment for the 2013 project results in a reduction of the proposed
carrying costs for the cities; reducing it from $17,000 down to $11,500.
AMEMDED: PHASE 1: Total estimated cost for the Olson Lake Trail Sanitary Sewer Extension Project:
8‐INCH DIAMETER GRAVITY SANITARY SEWER EXTENSION (580 LF) $141,000
UNIT ASSESSMENT AMOUNT (7 BENEFITTING PROPERTIES) $18,500
CARRYING COSTS (TO BE RECOVERED FROM FUTURE IMPROVEMENTS) $11,500
NOTE: Carrying cost to be shared on pro rata basis: Lake Elmo = 62%; Oakdale = 38%
Revisions resulting from the added scope of this amendment are shown in the amended Figure 2 exhibit,
amended cost estimate for the 2013 proposed improvements, and the amended preliminary assessment
roll for Lake Elmo.
APPENDIX
A JOINT EFFORT OF THE CITY OF OAKDALE AND LAKE ELMO, MN
FOCUS PROJECT NO. 2012.124
ENGINEER'S OPINION OF PROBABLE COST
8‐INCH TRUNK SEWER EXTENSION ‐ PROPOSED 2013 IMPROVEMENTS
DATE: MARCH 2013
Item Description Quantity Unit Unit price Total Cost
1 MOBILIZATION 1.00 LS $3,500.00 $3,500
2 TRAFFIC CONTROL 1.00 LS $1,750.00 $1,750
3SALVAGE & REINSTALL MAILBOX 2.00 EA $75.00 $150
4SALVAGE & REINSTALL POST & SIGN 1.00 EA $100.00 $100
5REMOVE & DISPOSE OF EXIST. BITUMINOUS PAVEMENT 150.00 SY $4.00 $600
6SILT FENCE 580.00 LF $2.00 $1,160
7REMOVE TREE INCLUDING STUMP (OVER 4") 22.00 EA $200.00 $4,400
8 CONNECT TO EXISTING MANHOLE 1.00 EA $750.00 $750
98" DIP, CLASS 50 SANITARY SEWER 20.00 LF $42.00 $840
10 8" PVC, SDR 35 SANITARY SEWER (0'‐10' DEPTH) 330.00 LF $28.00 $9,240
11 8" PVC, SDR 35 SANITARY SEWER (10'‐15' DEPTH) 230.00 LF $31.00 $7,130
12 48" DIAMETER SAN. MANHOLE (0'‐10' DEPTH) 3.00 EA $2,500.00 $7,500
13 48" DIAMETER SAN. MANHOLE EXTRA DEPTH (>10' DEPTH) 2.00 LF $200.00 $400
14 4" ON 8" PVC, SDR 35 WYE BRANCH 7.00 EA $100.00 $700
15 4" PVC, SDR 26 SOLVENT WELD SERVICE PIPE 245.00 LF $25.00 $6,125
16 8" DIP OUTSIDE DROP 5.00 LF $300.00 $1,500
17 TRENCH STABILIZATION ROCK 580.00 LF $3.00 $1,740
18 TELEVISING 580.00 LF $1.50 $870
19 INDIVIDUAL HOME GRINDER STATION 5.00 EA $8,000.00 $40,000
20 SPWEA240B BITUMINOUS WEARING COURSE, DRIVEWAYS 27.00 TN $95.00 $2,565
21 BITUMINOUS MATERIAL FOR TACK COAT 8.00 GA $2.50 $20
22 CL. 5 AGGREGATE BASE 55.00 TN $20.00 $1,100
23 TOPSOIL 161.00 CY $14.00 $2,254
24 SEEDING 0.20 AC $2,000.00 $400
25 WOOD FIBER BLANKET 967.00 SY $1.50 $1,451
26 OFF ROAD STRUCTURE MARKER 3.00 EA $100.00 $300
Subtotal Estimated Construction Cost:$96,000
Contingencies:$14,000
Easement and Right‐of‐way Acquisition: $0
Engineering Services (Report, Design and Construction Administration): $19,000
Full‐Time Construction Observation: $6,000
Geotechnical Engineering:$2,000
Legal, Fiscal and Administration:$4,000
Total Estimated Project Cost:$141,000
OLSON LAKE TRAIL SANITARY SEWER EXTENSION
*The estimated costs are according to average prices received on similar projects in other areas. The actual costs for this project will be determined through a
bidding process and can vary with market conditions at the time of the bid.
City of Oakdale and Lake Elmo, MN.
Olson Lake Trail Sanitary Sewer Extension
Project No. 2012.124
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CITY OF OAKDALE AND LAKE ELMO, MN.MARCH 2013OLSON LAKE TRAIL SANITARY SEWER EXTENSION ‐ AMENDED REPORTLAKE ELMO PRELIMINARY ASSESSMENT ROLLPAGE 1 of 1 NO. NAMEPID UNITS1 HAIDER ANTHONY J & DIANE M 4575 OLSON LAKE TRAIL LAKE ELMO 55042 08.029.21.14.0009 12 GRAHAM RICHARD C TRS 4635 OLSON LAKE TRAIL LAKE ELMO 55042 08.029.21.14.0005 13 KVAASE JOYCE 4655 OLSON LAKE TRAIL LAKE ELMO 55042 08.029.21.14.0055 14 TAYLOR REBECCA M 4671 OLSON LAKE TRAIL LAKE ELMO 55042 08.029.21.14.0050 15 SCHULTZ CHARLES A & MARCIA R ANDERSON 4709 OLSON LAKE TRAIL LAKE ELMO 55042 08.029.21.14.0010 1TOTAL 5ADDRESS