Explanation
1. BACKGROUND: This legislation authorizes the Director of Public Utilities to modify (Mod #1) an existing engineering agreement with GS-Oh, Inc. (Gresham, Smith & Partners) in the amount of $20,914.77 for the Holt Ave. / Somersworth Dr. Stormwater System Improvement Contract Modification CIP 611010-100000. The proposed modification will allow the Division of Sewerage and Drainage Stormwater Section to mitigate flooding on street surface, backyards near Holt Ave. and Somersworth Drive. This modification will include pervious pavement parking lane engineering along Holt Ave. to mitigate street flooding and provide treatment to stormwater runoff prior to discharging into receiving stream.
The work to be performed is only a small change to the project. Only one to two sheets of construction plans will be modified and/or added. It is more cost effective to have the existing consultant complete the design rather than advertise for new engineering services.
Modification Information:
1.1 Amount of additional funds to be expended: $20,914.77
Original Contract Amount (EL012092): $229,394.02
Modification #1 (Current): $20,914.77
TOTAL CONTRACT AMOUNT INCLUDING THIS MODIFICATION........... $250,308.79
Maximum monetary obligation of the City under this contract as amended shall not exceed $250,308.79.
1.2 Reasons additional goods/services could not be foreseen.
Additional stormwater engineering work has been identified that was not known at the time the original engineering agreement was legislated, but is critical to the sewer system infrastructure.
1.3 Reason other procurement processes are not used:
Additional stormwater work has been identified that is part of this planned work.
1.4 How cost of modification was determined:
An engineering cost estimate was negotiated with the firm.
2. CONTRACT COMPLIANCE NO.: 62-1736493 | Exp. 01/05/2020 | MAJ | Vendor#: 009789
3. EMERGENCY DESIGNATION: Emergency designation is not requested at this time.
4. ECONOMIC ...
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