US 20 W Main St over Water Br Walker Brook
Hampden County, Massachusetts · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 20 W Main St over Water Br Walker Brook in Hampden County, Massachusetts, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 7 (good condition) on the 0-9 scale.
- It was built in 2013, making it 12 years old at the 2025 inventory.
- It carries about 2,008 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 65 of the 429 inventoried bridges in Hampden County rated good (15.2%); 32 (7.5%) 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 February 2025, on a 24-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 → (42.27401, -72.99957)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Superstructure | 7 | 7 | Good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Concrete frame |
| Length | about 41 ft |
| Location | Mile Marker 33.9 |
| NBI structure number | C11033BCQDOTNBI |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | February 2025 |
| Inspection interval (item 91) | 24 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 Massachusetts department of transportation.
Busiest bridges in Hampden County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 91 over Hwy Main St (S End) | 1963 | 210,733 | Fair |
| I 91 over Comb Sts/csx/gwrr/garag | 1971 | 143,144 | Fair |
| I 91 over Hwy Arch St | 1968 | 134,428 | Fair |
| I 91 over Other Building | 1967 | 132,311 | Fair |
| I 91 over ST116 Main St (N End) | 1967 | 129,457 | Fair |
| I 91 over Hwy City Sts&garage | 1971 | 125,740 | Fair |
All bridges nearby: Hampden County, MA bridge conditions · every bridge in Hampden County · Massachusetts bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.