ABS Empire
Back in 1993, the Watertown sub was still awash in original Milwaukee Road ABS signals, many which were originally installed as semaphores and later modified. The easy I.D. was the abnormally large base that at one time housed the mechanicals for the blade movement such as shown here. Inside these bases was a simple terminal block for the signal wires. On this April day, Amtrak Empire Builder #7 rips past the ABS signal at Hartland, WI at its 79mph limit.
ABS Empire
Back in 1993, the Watertown sub was still awash in original Milwaukee Road ABS signals, many which were originally installed as semaphores and later modified. The easy I.D. was the abnormally large base that at one time housed the mechanicals for the blade movement such as shown here. Inside these bases was a simple terminal block for the signal wires. On this April day, Amtrak Empire Builder #7 rips past the ABS signal at Hartland, WI at its 79mph limit.