This is an interactive 2-track bridge based on the PRR span over the Baltimore River
at 18th Street in Chicago, Illinois. This version is interactive to open the bridge at the approach of a boat which
has been set up as a locomotive riding on the invisible tracks in the water. Vertical clearence = 155 ft if the water
level is set at -3 meters (-9 ft 0.0 in). Many thanks to Mike Kiehl (Etrains48) for the pics and info.
The blue invisible tracks are at ground level (0 ft 0.0 in).
The green invisible tracks are set at -10 meters (-32 ft 9.0 in).
Water level should be set at -3 meters (-9 ft 10.0 in).
IMPORTANT! This item can be made interactive to control trains crossing the span. See the README file in the folder
for instructions.