Structure 6161 · Litchfield County, CT
Carries Dibble Hill Road over Mill Brook, 330 Ft S. Of Route 128.
Set by its lowest-rated component: Superstructure and Substructure at 7 of 9.
How ratings work21 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 deck arch.
| State | Connecticut |
| County | Litchfield |
| Location | 330 Ft S. Of Route 128 |
| Carries | Dibble Hill Road |
| Crosses | Mill Brook |
| Coordinates | 41.87515, -73.35205 |
| Material | Steel |
| Design | Arch - Deck |
| Total Length | 21.0 ft (6.4 m) |
| Max Span | 21.0 ft (6.4 m) |
| Deck Width | 80.1 ft (24.4 m) |
| Deck Area | 156.2 sq m |
| Main Spans | 1 |
| Year Built | 1970 |
| Avg Daily Traffic | 131 (2024) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | Town/Township Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 06161 |
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.