Structure 1604 · Middlesex County, CT
Carries Ssr 434 over Brook, 3.0 Mi W Of Route 82.
Set by its lowest-rated component: Superstructure and Substructure at 6 of 9.
How ratings work24 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 | Middlesex |
| Location | 3.0 Mi W Of Route 82 |
| Carries | Ssr 434 |
| Crosses | Brook |
| Coordinates | 41.47742, -72.34194 |
| Material | Masonry |
| Design | Arch - Deck |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 24.0 ft (7.3 m) |
| Deck Width | 27.2 ft (8.3 m) |
| Deck Area | 60.6 sq m |
| Main Spans | 1 |
| Year Built | 1937 (reconstructed 1988) |
| Avg Daily Traffic | 500 (2021) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
| Last Inspection | December 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is on the National Register of Historic Places |
| Scour Critical | 7 — Countermeasures installed |
| Structure Number | 01604 |
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.