Structure 33350 · Lemhi County, ID
Carries US 93 over N. Fork Salmon River, 16.0 N. North Fork.
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 | Idaho |
| County | Lemhi |
| Location | 16.0 N. North Fork |
| Carries | US 93 |
| Crosses | N. Fork Salmon River |
| Coordinates | 45.60722, -113.96528 |
| Material | Steel |
| Design | Culvert |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 24.0 ft (7.3 m) |
| Deck Width | 63.3 ft (19.3 m) |
| Deck Area | 140.9 sq m |
| Main Spans | 1 |
| Year Built | 1997 |
| Avg Daily Traffic | 670 (2023) |
| Truck Traffic | 37% |
| Lanes On Bridge | 2 |
| Last Inspection | August 2024 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 000000000033350 |
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.