CA PRA GOGA 109(1), 108(1), 107(1) & 418(1), Conzelman Road and Various, Golden Gate National Recreation Area

PROJECT DETAILS: The project is located approximately 10 miles north of San Francisco, California in Golden Gate National Recreation Area. The proposed project has three schedules. Schedule A, B and C will rehabilitate 5.1, 6.0 and 7.3 miles of roadways (respectively) within the Marin Headlands. These roads include Conzelman Road, McCullough Road, Danes Drive, Field Road and East Road. The routes are entirely within the Golden Gate NRA. Project work includes rehabilitation, parking lot improvements, sight distance improvements, spot reconstruction, minor drainage improvements, and resurfacing of the existing roadway, parking areas, and pullouts. Roadway rehabilitation consists of widening the roadway; removing the existing asphalt pavement; grading the roadway to improve superelevation, crown and profile; and resurfacing with hot asphalt concrete pavement. Roadway reconstruction includes intersection realignments to improve safety, construction of a new roundabout and loop turnaround, an MSE wall on Conzelman Road, and minor alignment shifts for safety improvements.



Work includes removing the existing pavement; minor excavation and embankment to construct the subgrade; placing of aggregate base and recycled asphalt pavement; and resurfacing with hot asphalt concrete pavement. In addition, project work includes the removal of inferior subgrade material (sub-excavation), drainage improvements (new and replacement culverts, culvert/drop inlet installations and extensions, cleaning culverts, rundown and dissipater construction, concrete curb and gutter construction, and riprap installation); rock cuts for sight distance improvements, and other incidentals. The roadway is currently open to public traffic. Road closures will be allowed on East Road and Conzelman Road with restrictions. Alternating one-way traffic will be permitted on the other roads, with short delays and other limitations. The work is anticipated to take two construction seasons starting in January 2010 and ending in September 2011.



PLEASE NOTE: The Invitation for Bid is anticipated to be available for download on or after September 28, 2009, from the Federal Business Opportunities (FBO) website at www.fedbizopps.gov. PLANS WILL BE AVAILABLE FOR DOWNLOAD IN ADOBE (.pdf) FORMAT ONLY ON CFLHD's WEBSITE at ttp://www.cflhd.gov/procurement/construction/advertised-projects.cfm under the Project Name. Other information regarding this solicitation will also be available at the above website.



Technical questions specific to the project will only be addressed by FHWA via written correspondence to e-mail address CFLContracts@fhwa.dot.gov or FAX to (720) 963-3360.