Structure 530A1860001 · Loudon County, TN
Carries Powerhouse Access over Muddy Creek, Ft Loudoun Dam.
A culvert 21 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 | Tennessee |
| County | Loudon |
| Location | Ft Loudoun Dam |
| Carries | Powerhouse Access |
| Crosses | Muddy Creek |
| Coordinates | 35.79167, -84.24750 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 21.0 ft (6.4 m) |
| Max Span | 17.1 ft (5.2 m) |
| Deck Area | 62.7 sq m |
| Main Spans | 1 |
| Year Built | 1940 |
| Avg Daily Traffic | 50 (2021) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
| Last Inspection | September 2023 |
| Inspection Frequency | Every 24 months |
| Owner | Code 67 |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 530A1860001 |
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.