Operation Middle bridge with steel plates on wooden pillows make walking easier. All points are the left and right ends of the bridge to be used intermittently to train maneuvering while sailing through.
The walk in the middle of the bridge with steel sleepers on a paved walking easier. A break point on both the left and right sides of the bridge periodically. To avoid a train passing by.
A walk in the middle bridge steel plate on the sleeper to crab walking easier. A resting point for both the left and right sides of the bridge from time to time. To use as a dodge while sailing through train.