400th Ave. over South Branch Elk River
Fair Condition37 years old80 vehicles/day
Location
| State | Iowa |
| County | Clinton |
| Location | 083e63102 |
| Carries | 400th Ave. |
| Crosses | South Branch Elk River |
| Coordinates | 41.94845, -90.31521 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 8 (Very Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Tee Beam |
| Total Length | 41.0 ft (12.5 m) |
| Max Span | 40.0 ft (12.2 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 91.2 sq m |
| Main Spans | 1 |
| Year Built | 1989 |
Traffic
| Avg Daily Traffic | 80 (2022) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 48 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000125891 |