Linn-benton RD over Knapp Creek
Fair Condition54 years old730 vehicles/day
Location
| State | Iowa |
| County | Linn |
| Location | 082083108 |
| Carries | Linn-benton RD |
| Crosses | Knapp Creek |
| Coordinates | 41.86491, -91.83141 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 90.9 ft (27.7 m) |
| Max Span | 34.1 ft (10.4 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 271.5 sq m |
| Main Spans | 3 |
| Year Built | 1972 |
Traffic
| Avg Daily Traffic | 730 (2022) |
| Truck Traffic | 14% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000220480 |