Cotter RD over Miller Creek
Fair Condition40 years old59 vehicles/day
Location
| State | Iowa |
| County | Black Hawk |
| Location | 87-12-04-02-10 |
| Carries | Cotter RD |
| Crosses | Miller Creek |
| Coordinates | 42.37458, -92.25967 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 100.1 ft (30.5 m) |
| Max Span | 39.0 ft (11.9 m) |
| Deck Width | 25.3 ft (7.7 m) |
| Deck Area | 234.8 sq m |
| Main Spans | 3 |
| Year Built | 1986 |
Traffic
| Avg Daily Traffic | 59 (2022) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000073961 |