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 along the N-Line route. Other miscellaneous scope includes upgrades to the curve signal system, fire standpipe valves, cleaning the drain lines and painting the portals.
| Location: | San Francisco, California |
| Start Date: | May 2014 |
| Completion Date: | December 2015 |
| Contract Value: | $16,123,000 |
| Owner: | San Francisco Municipal Transportation Agency |
| Engineer: | San Francisco Municipal Transportation Agency |