No preview available
HomeMy WebLinkAboutPW H St. Drainage ReportAgenda Item Meeting Date: May 5, 2014 Prepared by:Manager Approva Director of Public Works File No.: 08.02.245 SUBJECT: STAFF PRESENTATION REGARDING THE H STREET DRAINAGE REPAIR AND STREET REHABILITATION PROJECT. RECOMMENDATION Accept the staff report. Over the last few years the Department of Public Works has presented information to the City Council regarding the present condition of the City's drainage system. H Street is one of the older sections of San Rafael with a drainage system dating back to the early 1900's. In 20 10 the Department of Public Works initiated an investigation of roadway deterioration along sections of H Street between 5thAvenue and Forbes Avenue. Staff discovered a severely eroded corrugated metal pipe storm drain culvert, the bottom of which is completely missing. Further investigation revealed the presence of a dual drain system, with two culverts approximately 30 inches in diameter and approximately 5 feet apart. A sanitary sewer system, located between the two drainage culverts, adds complexity to the project. The City has been working with the San Rafael Sanitation District to design a project that repairs the deteriorated culvert system,, relocates the sanitary sewer line and resurfaces the roadway. We have already notified all utilities that may have facilities in the project area, many of which are quite old and potentially in disrepair. It is advantageous and cost-effective to repair or replace these systems prior to resurfacing the roadway and the subsequent initiation of a minimum 5 -year moratorium on excavation. City staff has contacted the Marin Municipal Water District (MMWD) and Pacific Gas & Electric (PG&E), both of whom have an interest in updating their facilities in the area. MMWD has completed their work on H Street. PG&E has notified the City that they will need to update their gas distribution facilities. PG&E will hydro -test a gas main along this roadway in the next few months and will remove a 1h minimum of two trees near the comer of 5 Avenue and H Street in order to update their gas facility. This is a complex project based on the multiple utilities in the area and the coordination needed to complete this project. The Department of Public Works will present plans, specifications and estimates for the culvert replacement project to the City Council within the next few weeks. We anticipate starting construction by July 1, 2014 and completing the drainage, sewer relocation and roadway improvements FOR CITY CLERK OVILY FI*le No.:If 0- Lf 0 C Coundil Meefing: Dilsposibon: * A Z 40 5D -1 M by September 30, 2014. PG&E will also need to complete the relocation of their distribution system and the hydro -test of their gas main during this 3 -month period. 1. Accept the report and authorize the Department of Public Works to proceed with project design 2. Request additional information 3. Reject the report FISCAL IMPACT None at this time MDO INSTRUCTIONS: USE THIS FORM WITH EACH SUBMITTAL OF A CONTRACT, AGREEMENT, ORDINANCE OR RESOLUTION BEFORE APPROVAL BY COUNCIL / AGENCY. STRA/ SRCC AGENDA ITEM NO. 7.c DATE OF MEETING: May 5, 2014 FROM: Nader D, STAFF PRESENTATION REGARDING THE H STREET DRAINAGE REPAIR AND STREET REHABILITATIO1 Department Head (signature) (LOWER HALF OF FORM FOR APPROVALS ONLY) APPROVED ♦ AGENCY AGENDA City Manager (signature) City Attorney (signature)