Missouri River US 77 Bridge
Facts
- Overview
- Steel through arch bridge over Missouri River on US 77 in Sioux City
- Status
- Open to traffic
- History
- Built 1981; rehabilitated 1983
- Design
- Steel through arch
- Dimensions
-
Length of largest span: 425.2 ft.
Total length: 1,502.4 ft.
Deck width: 63.0 ft.
Vertical clearance above deck: 17.1 ft.
- Approximate latitude, longitude
- +42.48759, -96.41360 (decimal degrees)
42°29'15" N, 96°24'49" W (degrees°minutes'seconds") - Approximate UTM coordinates
- 14/712562/4707156 (zone/easting/northing)
- USGS topographic map
- Sioux City South
- Inventory numbers
- IA 52811 (Iowa bridge number)
BH 14776 (Bridgehunter.com ID) - Inspection (as of 06/2006)
- Deck condition rating: Satisfactory (6 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Good (7 out of 9)
Sufficiency rating: 79.6 (out of 100) - Average daily traffic (as of 2006)
- 28,600