Structure 30570 · Jasper County, IA
Carries Ia 14 over Drainage Ditch, 0.5 Mi N Of N Jct SR F62.
A culvert 24 ft across. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights, so those are drawn as typical for a culvert.
| State | Iowa |
| County | Jasper |
| Location | 0.5 Mi N Of N Jct SR F62 |
| Carries | Ia 14 |
| Crosses | Drainage Ditch |
| Coordinates | 41.58732, -93.09701 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 24.0 ft (7.3 m) |
| Deck Area | 106.6 sq m |
| Main Spans | 1 |
| Year Built | 1971 |
| Avg Daily Traffic | 3,730 (2022) |
| Truck Traffic | 13% |
| Lanes On Bridge | 2 |
| Last Inspection | February 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 000000000030570 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.