To: HONORABLE MAYOR AND From: Katy Allen
CITY COUNCIL
Subject: SAN TOMAS EXPRESSWAY Date: 05-19-03
TRUNK REHABILITATION
PHASE II PROJECT
Council District: 1
RECOMMENDATION
Approval of an agreement with Montgomery Watson Harza for consultant services including project design, preparation of construction documents and construction support services for the San Tomas Expressway Trunk Rehabilitation Phase II Project, for the period June 24, 2003 to January 30, 2005, in a total amount not to exceed $204,830.
BACKGROUND
The San Tomas Expressway Trunk Sewer serves portions of west San José and transmits additional flows accumulated in the West Valley Sanitation District (WVSD). The City and WVSD share the costs associated with maintaining this reinforced concrete pipe trunk sewer through a master agreement.
A condition assessment study and remote video inspection identified severe corrosion in the trunk sewer. The study recommended rehabilitation of the sewer to restore the structural integrity and extend the service life of the sewer.
Phase I of this rehabilitation project was completed in 2002. The Phase II project is located on Coakley Drive and Vicar Lane, between Moorpark and Williams Avenues, and on San Tomas Expressway between Williams and Campbell Avenues. The project will rehabilitate the large diameter reinforced concrete sewers with a cured-in-place liner. This rehabilitation process is less intrusive than the traditional open-cut replacement method and provides considerable cost savings.
As part of the construction process, upstream sewage flows must be diverted to adjacent pipelines and temporary surface pipelines which are located in the City of Campbell. The project requires multiple construction encroachment permits from Santa Clara County, the City of Campbell, the Campbell Union School District and the Santa Clara Valley Water District.
Due to the extensive sewer diversion planning and analysis involving multiple diversions and pumping locations, and the parallel coordination of multi-agency permits, the City has selected an engineering consultant firm with specialized expertise in hydraulic and environmental engineering. In addition, the consultant agreement includes the services of a transportation planning sub-consultant to develop the required stage construction and traffic control plans for use on all affected roadways in the City, Santa Clara County and the City of Campbell.
City staff has completed portions of the preliminary engineering work required for the project and will incorporate those work products into the project for use by the consultant during final design.
ANALYSIS
In September 2001, the City conducted a formal Request for Qualifications (RFQ) process to evaluate and pre-qualify engineering design consultants for a variety of design services, including sanitary sewer rehabilitation and design. This RFQ selection process was in accordance with the Public Works Department Policy for Retaining Consultants.
Montgomery Watson Harza (MWH) was selected for this project because of their extensive experience in sanitary sewer rehabilitation and hydraulic design. MWH will develop and analyze alternative designs, prepare pumping bypass requirements, provide design documents, coordinate with the Santa Clara County, the City of Campbell, Campbell Union School District and other agencies and provide construction support services.
MWH’s fee for basic services is $184,830 with an additional $20,000 allocated for additional consultant services. Staff considers the consultant’s fee for basic and additional services to be reasonable for the scope of the work.
Based on a cost sharing agreement executed on June 25, 2002 between WVSD and the City[c1], WVSD will reimburse the City 49 percent of the total project cost. The City will include WVSD in the development and design review process and meet with WVSD staff to discuss the progress of the project.
PUBLIC OUTREACH
In August 2001, a Request for Qualifications (RFQ) to perform engineering services was advertised in the San José Mercury News, the San José Post Record, and the City’s website. These services were related to Sanitary Sewer Master Plan, major interceptor pipeline design, storm drain, sanitary sewers, pump stations and miscellaneous pipeline projects. A total of 66 engineering firms requested a copy of the RFQ and 18 firms submitted statements of qualifications.
COORDINATION
This memo and agreement have been coordinated with the Department[c2]s of Finance, Planning, Building and Code Enforcement, the City Attorney’s Office and City Manager’s Budget Office.
COST IMPLICATIONS
1. AMOUNT OF RECOMMENDATION: $204,830
2. COST OF AGREEMENT:
Consultant Basic Services $184,830
Consultant Additional Services 20,000
TOTAL $204,830
3. SOURCE OF FUNDING: 540 - Sanitary Sewer Connection Fee Fund
4. FISCAL IMPACT: This project is consistent with the Council-approved Budget Strategy Economic Recovery section in that it will spur construction spending in our local economy. The annual operating and maintenance costs of this project have been reviewed, and it has been determined that the project will have a positive impact on the General Fund operating budget, in that it reduces ongoing maintenance needs.
BUDGET REFERENCE
|
Fund # |
Appn # |
Appn. Name |
RC # |
Total Appn.* |
Amt. for Contract |
2002-2003 Adopted Capital Budget Page |
Last Budget Action |
|
540 |
6595 |
San Tomas Expressway Trunk |
108143 |
3,601,000 |
204,830 |
697 |
|
* $171,379.99 of the Project Delivery Costs were expended or encumbered in prior fiscal years for the “San Tomas Expressway Trunk Rehabilitation, Phase II” project.
CEQA
Exempt, PP
02-10-277.
KATY ALLEN
Director, Public Works Department