Mississippi River US 18 Bridge
Facts
- Overview
- Steel through arch bridge over Mississippi River on US 18 between Marquette and Prairie du Chien
- Status
- Open to traffic
- History
- Built 1974
- Design
- Steel through arch
- Dimensions
-
Length of largest span: 462.3 ft.
Total length: 2,561.8 ft.
Deck width: 40.0 ft.
Vertical clearance above deck: 23.3 ft.
- Approximate latitude, longitude
- +43.04390, -91.17759 (decimal degrees)
43°02'38" N, 91°10'39" W (degrees°minutes'seconds") - Inventory numbers
- IA 20515 (Iowa bridge number)
BH 13196 (Bridgehunter.com ID) - Inspection (as of 07/2005)
- Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Good (7 out of 9)
Appraisal: Not deficient
Sufficiency rating: 75.0 (out of 100) - Average daily traffic (as of 2004)
- 7,500