Bolshoy Ustinsky Bridge (1938)
The bridge is 40 meters wide and 478 meters long; main span is 134 meters long, having six parallel steel arches (span formula 50.5+134.0+50.5 meters). Orthotropic deck is supported by I-beams; there are six road lanes and two tram tracks on a raised divider. Two features make this bridge unique:
- There are no massive stone pillars: arches are set onto low pylons that do not protrude above street level. Each pylon rests on a flat slab measuring 31.2 by 40.0 meters.
- It is the only major downtown bridge that retains tram traffic (routes A, 3, 39 – the last and only tram line inside Garden Ring).
Bolshoy Ustinsky bridge was reconstructed in 1999-2000, replacing the roadway deck with an improved, lighter orthotropic type. It retained all original structural details.
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