Structure 303431 · Scott County, IA
Carries 305th ST over Stream, 080e31003.
Set by its lowest-rated component: Deck and Superstructure at 6 of 9.
How ratings work25 ft end to end. 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 or the layout of the shorter spans, so those are drawn as typical for a tee-beam bridge.
| State | Iowa |
| County | Scott |
| Location | 080e31003 |
| Carries | 305th ST |
| Crosses | Stream |
| Coordinates | 41.74962, -90.59191 |
| Material | Prestressed Concrete |
| Design | Tee Beam |
| Total Length | 24.9 ft (7.6 m) |
| Max Span | 24.0 ft (7.3 m) |
| Deck Width | 25.9 ft (7.9 m) |
| Deck Area | 60.0 sq m |
| Main Spans | 1 |
| Year Built | 1976 (reconstructed 2013) |
| Avg Daily Traffic | 90 (2022) |
| Lanes On Bridge | 2 |
| Last Inspection | April 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 000000000303431 |
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.