Structure L50081005+06001 · Teton County, MT
Carries 6th LN NE over Drainage 129, 13m SW Dutton.
23 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 multi-beam bridge.
| State | Montana |
| County | Teton |
| Location | 13m SW Dutton |
| Carries | 6th LN NE |
| Crosses | Drainage 129 |
| Coordinates | 47.76578, -111.85936 |
| Material | Wood or Timber |
| Design | Stringer/Multi-beam |
| Total Length | 22.6 ft (6.9 m) |
| Max Span | 21.0 ft (6.4 m) |
| Deck Width | 24.3 ft (7.4 m) |
| Deck Area | 51.1 sq m |
| Main Spans | 1 |
| Year Built | 1974 |
| Avg Daily Traffic | 100 (2025) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
| Last Inspection | January 2025 |
| 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 | L50081005+06001 |
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.