Structure 315591 · Story County, IA
Carries 190th ST over Dd 70, .25 Mi S Of NW Cor..
A culvert 25 ft across with 2 openings. 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 | Story |
| Location | .25 Mi S Of NW Cor. |
| Carries | 190th ST |
| Crosses | Dd 70 |
| Coordinates | 42.07797, -93.67392 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 24.6 ft (7.5 m) |
| Max Span | 11.2 ft (3.4 m) |
| Deck Area | 68.2 sq m |
| Main Spans | 2 |
| Year Built | 2017 |
| Avg Daily Traffic | 578 (2022) |
| Lanes On Bridge | 2 |
| Last Inspection | December 2022 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 000000000315591 |
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.