Aerial NWP Railroad train trestle drawbridge Larkspur and Greenbrae Boardwalk Houseboats - DJI.Greenbrae Boardwalk, Kentfield, California, United States.Historic Drawbridge The counter weight drawbridge (bascule bridge) was built in 1924 replacing an earlier bridge. Third rail electric suburban trains used the line until 1941 with freight surviving much later. The "last run" to San Rafael was in the summer of 1986. The last train to Sausalito was in November of 1971. The line later ended in Corte Madera at the Handi-Kup company, the only customer south of the bridge until about 1970, it was later called WinCup, and is now a large housing complex. The Southern rail line was originally built in 1884, connecting San Rafael to points south. South of the bridge trains could travel to Corte Madera, Tiburon, Mill Valley and Sausalito and back up the Ross Valley. This track structure is one of the last substantial remaining parts of Marin's North Western Railroad in addition to a few tunnels and depots. Greenbrae Boardwalk The Greenbrae Boardwalk borders the Corte Madera Creek on the east side of Highway 101 in Marin County. It's an unusual habitat and community consisting of about 49 homes. Originally in the early 1900's many were ark like floating homes on boat-like hulls. Most have been remodeled and made more substantial structures and built on pilings. Truly some of the more unique and sometimes rustic homes in Marin. A long wooden boardwalk above the pickleweed salt marsh is the only land access on foot or by bike. The first waterline came to the boardwalk in 1921, electricity in 1946, postal delivery in 1948, and sewage installation by 1961. Residents have told stories of dramatic storms and the joys and challenges of living over the mud.