HWY S Union ST over Rr Mbta/bmrr
Fair Condition99 years old28,500 vehicles/day
Location
| State | Massachusetts |
| County | Essex |
| Location | .8 Km So Merrimac River |
| Carries | HWY S Union ST |
| Crosses | Rr Mbta/bmrr |
| Coordinates | 42.70164, -71.15341 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 74.1 ft (22.6 m) |
| Max Span | 34.1 ft (10.4 m) |
| Deck Width | 66.9 ft (20.4 m) |
| Deck Area | 461.0 sq m |
| Main Spans | 2 |
| Year Built | 1927 (reconstructed 1993) |
Traffic
| Avg Daily Traffic | 28,500 (2024) |
| Truck Traffic | 3% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | L0402332DDOT634 |