The Conrail Track Geometry Train crosses over Starrucca Creek on the Starrucca Viaduct as it rolls EB up the hill towards Gulf Summit. #1935 was the regular, system wide, assigned engine for this train. The first car is an ex NYC baggage car, Conrail 23. The stone viaduct was built 1846-1847, is 1,200 ft long, 98 ft high, and has 17 arches.