Structure 363895 · Linn County, IA
Carries Miller Road over Tower Creek, 000000000.
Set by its lowest-rated component: Deck and Superstructure at 5 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 slab bridge.
| State | Iowa |
| County | Linn |
| Location | 000000000 |
| Carries | Miller Road |
| Crosses | Tower Creek |
| Coordinates | 42.05526, -91.70695 |
| Material | Wood or Timber |
| Design | Slab |
| Total Length | 24.9 ft (7.6 m) |
| Max Span | 23.0 ft (7 m) |
| Deck Width | 24.6 ft (7.5 m) |
| Deck Area | 57 sq m |
| Main Spans | 1 |
| Year Built | 1996 |
| Avg Daily Traffic | 2,740 (2021) |
| Lanes On Bridge | 2 |
| Last Inspection | April 2023 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 000000000363895 |
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.