IDOT Structure Number 022-9516. Our structural engineer performed a thorough design check of the bridge substructure and superstructure when one of span lengths changed. The structure is a partially curved six-span bridge with 82" plate girders on stub abutments and multi-column piers. Bridge length was 1062 ft (116‘-145‘-150‘-205‘-215‘-181‘). Images below are samples of surveying work being done in various locations.
Survey at dawn.
Survey retention pond mapping.
Image of strip mine pits.
Surveying in the winter.