Structure 12295 · Bonneville County, ID
Carries US 20 over Oakland Waste Ditch, 4.8 W. Idaho Falls.
A culvert 22 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 | Idaho |
| County | Bonneville |
| Location | 4.8 W. Idaho Falls |
| Carries | US 20 |
| Crosses | Oakland Waste Ditch |
| Coordinates | 43.49703, -112.13786 |
| Material | Steel |
| Design | Culvert |
| Total Length | 22.0 ft (6.7 m) |
| Max Span | 22.0 ft (6.7 m) |
| Deck Width | 207.0 ft (63.1 m) |
| Deck Area | 422.8 sq m |
| Main Spans | 1 |
| Year Built | 1976 (reconstructed 1996) |
| Avg Daily Traffic | 4,800 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 5 |
| Last Inspection | November 2024 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 000000000012295 |
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.