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Agenda Item 22.

City Council Meeting

Meeting Date:	05/02/2017
FROM:	City Manager

Subject:

Plans and Specifications for Central Avenue and Tamarack Avenue Intersection Improvement, Project 7310

RECOMMENDATION

Approve Plans and Specifications and authorize City Clerk to advertise and receive bids.

BACKGROUND/DISCUSSION

The Central Avenue and Tamarack Intersection Improvement, Project 7310 (Project) is included in the FY 2016-2017 Capital Improvement Program (CIP). This Project will enhance the flow of traffic along Central Avenue in the westbound direction by adding a dedicated westbound right turn lane at the intersection of Tamarack Avenue. The additional right-of-way needed for this improvement has been previously dedicated at the northeast corner of the intersection.

This Project will widen the north side of Central Avenue east of Tamarack Avenue to provide a dedicated westbound right turn lane. The improvements will include modifying the traffic signal, and reconstruction of sidewalks, curb and gutter, and curb access ramps at the northeast corner of the intersection. In addition, Tamarack Avenue will also be reconstructed north of Central Avenue to approximately 250 feet northerly to provide a proper transition due to the existing steep street grade at Tamarack Avenue. The reconstruction of Tamarack Avenue may require a full or partial street closure during the construction period. The coordination and Right of Entry Agreements with several properties are in progress, including the apartment north of the gas station, Shell Gas Station, 7-11 Plaza and the property adjacent to 7-11 Plaza. Due to its proximity to Mariposa School, this improvement/street closure is scheduled to be constructed during the school break.

If approved, bids will be received on June 5, 2017, with award tentatively scheduled for the City Council meeting on June 20, 2017. Construction is anticipated to start in July 2017 and expected to be completed in September 2017. Staff is expecting to significantly complete the Project by the end of August with some lane closures in September to complete the Project. Staff ordered the Traffic Signal poles separate from the construction contract in April 2017 in order to meet the tight schedule for completion and to stay within the expected lead time for the procurement.

The plans and specifications are available at the City Engineer's Office for review or click the links below to review the documents online.

Plans - PN 7310 Central & Tamarack Intersection Imp. (3MB) Large File

Specifications - PN 7310 Central & Tamarack Intersection Imp. (17MB) Large File

FISCAL IMPACT/SUMMARY

The Project’s overall budget was estimated at $550,000 including design, construction, and construction management in the FY 2016/2017 CIP. However, based on the current probable construction estimate of approximately $600,000 inclusive of a 10% contingency, an additional $230,000 has been proposed for FY 2017-2018 within the annual CIP update to fully fund the Project. Therefore, if required based on the lowest responsible bid amount received, the construction contract award will be contingent on City Council's approval and adoption of the annual FY 2017/2018 CIP update, which is planned for June 2, 2017 or a separate budget resolution adjustment would be required at time of award. The Project is funded with Fund 220 (Gas Tax). Therefore, there is no General Fund impact.

The Project will widen the north side of Central Avenue east of Tamarack Avenue to construct a dedicated westbound right turn lane to enhance the westbound through traffic on Central Avenue. Plans and Specifications have been approved by the City Engineer and are ready for bid. Therefore, staff is recommending City Council consider approving the Plans and Specifications and authorization to advertise and receive bids for the Project.

RESPECTFULLY SUBMITTED:

William Gallardo, City Manager
Prepared by: Raul Lising, P.E., Assistant City Engineer
Concurrence: Steve Kooyman, P.E., City Engineer; Tony Olmos, P.E., Public Works Director