Hwy Wiley St over Water Mill River
Middlesex County, Massachusetts · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Hwy Wiley St over Water Mill River in Middlesex County, Massachusetts, 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 1971, making it 54 years old at the 2025 inventory.
- It carries about 475 vehicles a day (traffic count year 2024).
- Its listed owner is a town or township highway agency.
- It is one of 170 of the 821 inventoried bridges in Middlesex County rated good (20.7%); 91 (11.1%) 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 July 2024, 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 → (42.49838, -71.04677)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 7 | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 27 ft |
| Location | .16 Km. S. of Rt. 129 |
| NBI structure number | W010282DCMUNNBI |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2024 |
| 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 Middlesex County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 93 over St 60 Eb/salem St | 1961 | 266,500 | Fair |
| I 93 over St 60 Wb/salem St | 1961 | 266,500 | Fair |
| I 93 over Water Mystic River | 1963 | 250,350 | Fair |
| I 93 over Hwy Valley St & Fllswy | 1961 | 210,316 | Fair |
| I 93 over Hwy Montvale Ave | 1958 | 208,231 | Fair |
| I 93 over I 95 /ST128 | 1957 | 200,824 | Poor |
All bridges nearby: Middlesex County, MA bridge conditions · every bridge in Middlesex County · Massachusetts bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.