River Road over Guinea Brook
Litchfield County, Connecticut · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- River Road over Guinea Brook in Litchfield County, Connecticut, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1986, making it 39 years old at the 2025 inventory.
- It carries about 400 vehicles a day (traffic count year 2013).
- Its listed owner is a town or township highway agency.
- It is one of 284 of the 470 inventoried bridges in Litchfield County rated fair (60.4%); 35 (7.4%) are rated poor.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (41.81483, -73.37719)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Timber slab |
| Length | about 28 ft |
| Location | 0.4 Mi S. of Route 4 |
| NBI structure number | 05362 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Connecticut department of transportation.
Busiest bridges in Litchfield County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Interstate-95 over Route 10 | 1957 | 132,600 | Good |
| Interstate-95 over Richards Avenue | 1956 | 115,900 | Fair |
| US 202 & Route 67 over Housatonic River | 1953 | 23,800 | Fair |
| Route 8 Northbound over Laurel Hill Road | 1966 | 22,000 | Fair |
| US Route 44 Rte 1 over Still River | 1949 | 18,500 | Poor |
| Route 8 Northbound over Branch Brook | 1964 | 16,800 | Poor |
All bridges nearby: Litchfield County, CT bridge conditions · every bridge in Litchfield County · Connecticut bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.