Structure 80405000001036 · Unicoi County, TN
Carries Nfsr 25 over Longarm Branch, Longarm Branch.
A culvert 20 ft across with 3 openings. 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 | Tennessee |
| County | Unicoi |
| Location | Longarm Branch |
| Carries | Nfsr 25 |
| Crosses | Longarm Branch |
| Coordinates | 36.12667, -82.53694 |
| Material | Aluminum/Wrought Iron/Cast Iron |
| Design | Culvert |
| Total Length | 20.3 ft (6.2 m) |
| Max Span | 20.3 ft (6.2 m) |
| Deck Area | 26.7 sq m |
| Main Spans | 3 |
| Year Built | 2012 |
| Avg Daily Traffic | 20 (1999) |
| Lanes On Bridge | 1 |
| Last Inspection | April 2024 |
| Inspection Frequency | Every 24 months |
| Owner | U.S. Forest Service |
| Historical Significance | Historical significance is not determined |
| Scour Critical | 4 — Foundations need monitoring |
| Structure Number | 080405000001036 |
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.