ST189 Granby Rd over Water Seymour Brook
Hampden County, Massachusetts · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- ST189 Granby Rd over Water Seymour Brook in Hampden County, Massachusetts, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1904, making it 121 years old at the 2025 inventory.
- It carries about 2,068 vehicles a day (traffic count year 2018).
- Its listed owner is the state highway agency.
- It is one of 332 of the 429 inventoried bridges in Hampden County rated fair (77.4%); 32 (7.5%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: superstructure 6 to 5.
- Its most recent inspection on record is dated March 2024, on a 24-month routine inspection cycle.
- 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 → (42.06454, -72.8608)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Superstructure | 6 | 5 | Fair condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Concrete deck arch |
| Length | about 30 ft |
| Location | at Water Street |
| NBI structure number | G100170KTDOTNBI |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | March 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
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.