HomeMy WebLinkAbout05/15/2012 Sewer Repairs using Cured-In-Place-Pipe (CIPP) (Engineering Services)Mount Prospect Public Works Department
?/ INTEROFFICE MEMORANDUM
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TO: VILLAGE MANAGER MICHAEL E. JANONIS
FROM: WATER/SEWER SUPERINTENDENT
DATE: MAY 7, 2012
SUBJ: ACCEPT CONSTRUCTION ENGINEERING PROPOSAL FOR CURED -
IN- PLACE -PIPE (CIPP) AND SPOT RELAY REPAIRS ($86,595)
BACKGROUND
In the current budget, staff requested funds for continuing the combined and separate sewer
system repairs. The combined sewer repairs were identified during the Combined Sewer
System Evaluation Study (CSSES) completed in 2004. In total, almost $15 million worth of
combined sewer repair work has been slated over fifteen years. The Village is beginning the
8th year of the project.
The CSSES was performed by consulting engineer, Baxter & Woodman of Crystal Lake, Illinois.
Due to the scale of this project, literally a multi - million dollar, multi -year effort; staff is
recommending the use of an engineering consultant part -time to assist Village staff in the
oversight of this program. The program for 2012 includes 16,690 lineal feet of cured-in- place-
piping (CIPP) and 32 pipe segment repairs for the spot relay repair project totaling
approximately 400 lineal feet of repairs on sewers ranging in diameter from 10 to 18 inches.
DISCUSSION
As noted, Baxter & Woodman prepared the initial CSSES. Consequently, they are very familiar
with the Village's infrastructure rehabilitation program and attuned to our customer oriented
work philosophies. Baxter & Woodman provided construction engineering services for last
year's CIPP and Spot Relay projects. They have provided similar services in each of the
previous seven years. All of these projects were prosecuted without incident and culminated in
a satisfactory completion.
The ongoing CIPP program continues to be as large and demanding as previous years. This
year's plans require additional materials testing and reporting. Thus staff is recommending the
continued use of consulting engineer, Baxter & Woodman on a part -time basis to assist with
these projects.
At staff's request, Baxter & Woodman submitted a proposal to supply limited engineering
assistance after contract award that includes half -time oversight of the CIPP project, 100%
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ACCEPT CONSTRUCTION ENGINEERING PROPOSAL FOR CURED -IN- PLACE -PIPE (CIPP)
AND SPOT RELAY REPAIR ($86,595)
MAY 7, 2012
construction observation of the spot relay work and overall contract administration for both
projects.
Their fee to provide these services is a not to exceed total of $86,595. The amount paid to
Baxter & Woodman in 2011 for this effort was $80,385.
The CIPP lining project is slightly larger than last year with 16,690 lineal feet planned for 2012
versus the 14,558 lineal feet in 2011. The spot relay work involves 32 pipe segments that will
involve the repair or replacement of approximately 400 lineal feet of pipe ranging in diameter
from 10 to 18 inches. The number of spot repair increased from 23 pipe segments in 2011 to
the planned 32 repairs. Overall, the scope of work for this year's project is larger than last year
and will require more construction engineering man - hours.
Engineering services for this type of work usually range between 8 -10% of the overall project
costs. When the fee is compared to the actual bid awards being considered by the Village
Board, the fee is slightly less than 9% of the proposed award amounts totaling $974,381. As
this is a not to exceed proposal, the fee will vary with the actual project costs but will not exceed
the $86,595.
RECOMMENDATION
I recommend that the Village Board authorize a contract with Baxter & Woodman, Consulting
Engineers of Crystal Lake, Illinois for specified construction engineering services associated
with the Sewer Line Spot Relay Repairs and the Sewer Rehabilitation using CIPP Process
projects in an amount not to exceed $86,595. Sufficient funds for this proposed contract exist in
the current budget.
Matt Overeem
I concur
Director of Public Works
CC: Village Clerk Lisa Angell
H: \Water \CIPP\2012 CIPP\2012 CIPP BW PSA board report revIdoc