HomeMy WebLinkAboutTask Order No. 6003-10180 with Forsgren for Sewer Line Replace Carlton�E IDIAN,�--.�-
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PURCHASING AGENT
33 E. Broadway Ave, Meridian, ID 83642
Phone: (208) 888-4433 x 417
Fax: (208) 887-4813
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Between
CITY OF MERIDIAN
AND
FORSGREN ASSOCIATES, INC.
This Task Order is issued by City and accepted by the Engineer pursuant to the mutual promises,
covenant and conditions contained in the Master Agreement between the above mentioned parties
dated January 19, 2010.
SEWER LINE REPLACEMENT — CARLTON (DESIGN)
SCOPE OF SERVICES
Project Understanding
• The length of the pipeline to be replaced is approximately 330 feet, from manhole to manhole.
Manholes are not anticipated to be replaced;
• The City wants to consider pipe bursting;
• The pipe is both concrete and some other unknown material (possibly ductile iron). There are no
significant bellies in the pipeline segment that have been identified via TV, therefore making pipe
bursting a viable option;
• Forsgren will be required to research, cost estimate, and compare the pros and cons of open trench
and pipe bursting for consideration and direction by the city;
• There are two sewer service lines expected that will need to be reconnected (two houses on SW
corner of 81h Avenue and Carlton);
• Groundwater conditions are unknown in the area;
• Meridian will use QLPE for DEQ's review, so no DEQ coordination will be required;
• Coordination with ACHD will be required to obtain necessary approvals to do the replacement. A
traffic control plan will be required;
• Construction staking, if open trench, will be the responsibility of the contractor;
• City of Meridian will perform construction inspection. Forsgren will perform submittal reviews, as-
builts, and any other engineering assistance requested during construction.
Project Approach
Subsurface and Utility Information: Forsgren Associates will strive to accurately verify and illustrate all
utility and sewer service locations within the project area by obtaining maps, potholing, as determined
necessary, and TV logs. The information gathered on utilities and subsurface will be shown on the plans to
alert the contractor of unique situations and obstacles that may be encountered.
Pipeline Replacement Alternative Discussion with City: With the field information in hand, a comparison
between open trench and pipe bursting will be prepared. A meeting with the City will be arranged to discuss
the pros and cons of the replacement techniques. Cost projections of the techniques will be prepared and
presented. Direction from the City as to the technique preference will be the outcome of this meeting.
Construction Plans, Specifications, and Bid Documents: Based on the decision and directive from the
City, Forsgren will proceed with preparing the appropriate construction drawings, specifications, and bid
documents for the selected Pipeline Replacement Alternative. Coordination with the City will take place to
ensure compliance with City standards and recommendations.
Information Needed from the City
Some specific items will need to be verified and presented in the construction plans, including:
• A determination of sewer flows in order to provide the contractor sufficient information to prepare a
Sewer Bypass Plan (which will be approved by the City).
• Pipe material(s) (if pipe bursting) needs to be verified as this may impact the type of pipe bursting
head the contractor uses and impact his cost.
Rim and invert manhole elevations.
Boiler plat documents (i.e. contract documents) that the City may have and requires to use.
TIME OF PERFORMANCE
Week of
Task Order approved and initiated May 24, 2010
Obtain Subsurface and Needed City Information June 7, 2010
Prepare Open Trench vs. Pipe Bursting Comparison
Discussion with City Staff June 14, 2010
Draft Plans, Specifications, and Bid Documents submitted to City for
Review and approval, ACHD permits 1 approvals obtained July 12, 2010
Final Plans, Specifications and Bid Documents submitted to City July 26, 2010
COMPENSATION
The following costs are not -to -exceed unless prior approval from the City is obtained:
Information gathering (subsurface 1 City) $ 700
Prepare Comparison, Attend City Staff meeting $1,500
Prepare Draft plans, specs, and bid documents; ACHD permits obtained $5,500
Prepare Final plans, specs, and bid documents $2,100
Pre-bid and pre -construction meetings, construction submittal reviews, and as-builts
drawings $1,200
Design Sub -total $11,000
Forsgre sociates, Inc.
BY.
Dated:
Approved as to C n end
BY: /
KEITAOATITSTJRCHMSSIAG AGENT
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