Thorpe Street Ext over Boggs Pond Brook
Fairfield County, Connecticut · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Thorpe Street Ext over Boggs Pond Brook in Fairfield County, Connecticut, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 2003, making it 22 years old at the 2025 inventory.
- It carries about 3,140 vehicles a day (traffic count year 2022).
- Its listed owner is a city or municipal highway agency.
- It is one of 189 of the 862 inventoried bridges in Fairfield County rated good (21.9%); 33 (3.8%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated April 2022, on a 48-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (41.40576, -73.45884)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 7 | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 25 ft |
| Location | 0.1 E of Route 39 |
| NBI structure number | 05097 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | April 2022 |
| Inspection interval (item 91) | 48 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Connecticut department of transportation.
Busiest bridges in Fairfield County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Interstate-95 over Kings Hwy-goodwives Rv | 1952 | 154,700 | Fair |
| Interstate-95 over Bostwick Ave | 2006 | 154,600 | Fair |
| Interstate-95 over Bport Harbor Rt 130 Mnrr | 1959 | 153,100 | Fair |
| Interstate-95 over Norwalk Rv Hendricks Ave | 1957 | 147,500 | Fair |
| Interstate-95 over Route 136 | 1952 | 143,900 | Fair |
| Interstate-95 over Metro North RR & Station | 1958 | 143,300 | Fair |
All bridges nearby: Fairfield County, CT bridge conditions · every bridge in Fairfield County · Connecticut bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.