Category Archives: Railway

Caltrain, San Mateo Bridges Replacement Project

This project consists of the replacement of four active railroad bridges in the City of San Mateo.  Major elements of each bridge are reinforced concrete abutments and wing walls on micropile-supported, cast-in-place footings.  The new bridges are assembled adjacent to the existing structures and during each 54-hour shutdown, the existing bridge is...

MUNI Sunset Tunnel Trackway Improvement Project, SFMTA #1270

The work includes replacing the existing tie and ballast tracks; replacing existing overhead catenary system (OCS), including messenger wires, trolley wires and various components.  Seismic upgrade for portal retaining walls; upgrading traction power cable infrastructure; adding a new accessible key stop at Judah and 28th Street.   New VTAG loops at nine intersections...