St 1 A/main St over RR Mbta
Essex County, Massachusetts · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- St 1 A/main St over RR Mbta in Essex County, Massachusetts, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1907 and reconstructed in 1931, making it 118 years old at the 2025 inventory.
- It carries about 3,500 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 66 of the 397 inventoried bridges in Essex County rated poor (16.6%); 66 (16.6%) are rated poor.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (42.73583, -70.86139)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 4 | Poor condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete |
| Length | about 123 ft |
| Location | 1.6 Mi N Rowley Town Hall |
| NBI structure number | R1100132PDOT634 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Massachusetts department of transportation.
Busiest bridges in Essex County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 93 over ST213 WB | 1959 | 186,800 | Fair |
| I 93 over Hwy Dascomb Rd | 1957 | 145,580 | Fair |
| I 93 over ST213 EB | 1959 | 144,946 | Fair |
| I 95 /ST128 over I 95 Ramp J | 1988 | 144,936 | Fair |
| I 95 /ST128 over Hwy Main St | 1948 | 143,473 | Fair |
| US 1 Newbrprt Tpk over I 95 /ST128 | 1963 | 140,655 | Poor |
All bridges nearby: Essex County, MA bridge conditions · every bridge in Essex County · Massachusetts bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.