Launched in 1948, the Martha S., was powered by two diesel engines making total 470 horsepower, and was 80 feet in length and 30 feet in beam.
 Its maximum capacity was 12 cars, or a single tractor-trailer truck alone, but it was unable to accommodate highway legal double tractor-trailer trucks.
The ferry was in service from its launch until its retirement on Sunday, July 7, 2013.
The vessel was named in honor of Martha Shain, the wife of State Highway Director Clarence Shain at the time it was put in service.
Launched in 1948, the Martha S., was powered by two diesel engines making total 470 horsepower, and was 80 feet in length and 30 feet in beam.  Its maximum capacity was 12 cars, or a single tractor-trailer truck alone, but it was unable to accommodate highway legal double tractor-trailer trucks. The ferry was in service from its launch until its retirement on Sunday, July 7, 2013. The vessel was named in honor of Martha Shain, the wife of State Highway Director Clarence Shain at the time it was put in service.
Keller Ferry