Structure 3929 · Knox County, ME
Carries Razorville RD over Jackson Str. (davis Str., 1.5 Mi E Jct 206.
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 | Maine |
| County | Knox |
| Location | 1.5 Mi E Jct 206 |
| Carries | Razorville RD |
| Crosses | Jackson Str. (davis Str. |
| Coordinates | 44.27779, -69.40698 |
| Material | Steel |
| Design | Culvert |
| Total Length | 20.7 ft (6.3 m) |
| Max Span | 20.7 ft (6.3 m) |
| Deck Area | 53.5 sq m |
| Main Spans | 1 |
| Year Built | 1947 |
| Avg Daily Traffic | 340 (2016) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
| Last Inspection | July 2024 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 4 — Foundations need monitoring |
| Structure Number | 3929 |
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.