San Bruno CA Street Repair - UPDATE

Article Source: City of San Bruno CA

SUBJECT: Adopt Resolution Authorizing the City Manager to Execute a Contract with Pavement Engineering, Inc. for Pavement Evaluation Services in an Amount Not to Exceed $104,245

BACKGROUND:

The City's Capital Improvement Program (CIP) includes the Pavement Management Program (PMP) to repair and apply preventative maintenance treatment to local, collector, and arterial streets. The PMP provides an ongoing condition assessment of City streets and recommends the streets to be selected for rehabilitation to cost effectively maximize pavement longevity. Similar to other cities throughout the Bay Area, the City utilizes the Metropolitan Transportation Commission's (MTC) StreetSaver program to serve as a database for tracking the condition of streets throughout the City and to recommend streets to be selected for pavement maintenance.

StreetSaver maintains a database of the street conditions using a pavement condition index (PCI). PCI is a numerical index between 0 and 100 in which 0 represents a failed street and 100 represents a newly repaved street. PCI scores are available for the City's entire street network and it functions as an indicator for the general condition of a street. However, PCI is only a visual assessment of the amount of pavement surface defects or distresses observed and is not an indication for the condition of the pavement structure. The pavement structure of a roadway primarily consists of an asphalt concrete on the surface layer, aggregate base in the middle layer and a subgrade course consisting of soil on the bottom. An evaluation of these structural layers are necessary in order to properly recommend a pavement structural design to ensure that the proposed City's roadways for rehabilitation are properly constructed for the anticipated traffic volumes and lasts longer.

At the September 12, 2017 meeting the City Council approved a list of street segments to be included in the 2017-18 Rehabilitation Project. A list of the streets along with the paving limits is attached to this report. All of the streets have been identified to receive evaluation that includes deflection testing and pavement coring to better understand the pavement structure. This testing and evaluation work is intended to identify any roadway conditions that will require special consideration as part of the rehabilitation project design.

DISCUSSION:

The City issued a Request for Proposals (RFP) for pavement evaluation services for the 2017-18 Street Rehabilitation Project in September 2017. Staff received three proposals and conducted an evaluation based on the following criteria:

• Project understanding and innovative approach
• Qualifications and experience of the project manager and team
• Qualifications relating to pavement analysis and design
• Completion of similar projects and references

Based on the evaluation, staff is recommending Pavement Engineering, Inc. to provide the pavement evaluation services for the 2017-18 Street Rehabilitation Projeôt. Pavement Engineer, Inc. specializes in pavement management and rehabilitation and has over 30 years of experience. The firm has the qualifications and completed similar pavement analysis projects for the Cities of Concord, Larkspur, and Los Altos. The scope of work includes performing pavement deflecting testing, collecting pavement core samples, laboratory testing of subgrade soils, developing pavement rehabilitation recommendations, preparation of a pavement design report and providing construction support services.

Pavement Engineer, Inc. will perform deflection analysis in general conformance to California Test Method 356 at 100-foot intervals in each lane (minimum 10 tests per lane). In addition, the firm will perform pavement core at 500-foot maximum intervals over the street segment (minimum of two cores per street segment). Total pavement section at each core location will be measured and native soil sample will be obtained to determine the R-value of the subgrade. Native soil samples will be collected every 1,000-feet (minimum one per road segment).

For the project schedule, staff estimates that the pavement evaluation and report will take approximately three months to complete. Upon receiving the pavement rehabilitation recommendations from Pavement Engineering, Inc., the bid documents which include plans and specifications will be developed using in-house staff services with an anticipated completion by April 2018 for summer 2018 construction.

FISCAL IMPACT:

The FY 2017-18 CIP budget includes an appropriation for the Pavement Management Program to perform design and construction for the FY2017-18 Street Rehabilitation Project. There is currently a balance of approximately $3,680,000 for Street Rehabilitation Project in FY 2017-18 under the Pavement Management Program funded from Measure A, Gas Tax, and General Fund Capital Reserve which is sufficient to fund pavement evaluation services.

ALTERNATIVES:

• Direct further review of submitted proposals for selection of different firm.
• Direct staff to issue a new request for proposals and modify the scope of work as directed by the City Council.

RECOMMENDATION:

Adopt resolution authorizing the City Manager to execute a contract with Pavement Engineering, Inc. for pavement evaluation services in an amount not to exceed $104,245.

FULL Council Agenda Packet WITH Staff Reports can be viewed and downloaded from:

https://sanbruno.ca.gov/gov/elected_officials/city_council_minutes_n_agendas.htm

This document should be available late Friday before the Tuesday Council Meeting

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Robert Riechel

E=Mail: SanBrunoPatch.Robert@Yahoo.com

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Photo Credit: San Bruno CA Patch Archives

Source Credit: San Bruno CA City Council

Web Site: https://sanbruno.ca.gov

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