ST 28 Sb/n Main ST over I 495 Ramp D
Fair Condition64 years old16,293 vehicles/day
Location
| State | Massachusetts |
| County | Essex |
| Location | 1.8 Mi N Andover Center |
| Carries | ST 28 Sb/n Main ST |
| Crosses | I 495 Ramp D |
| Coordinates | 42.68036, -71.15311 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 110.9 ft (33.8 m) |
| Max Span | 41.0 ft (12.5 m) |
| Deck Width | 44.9 ft (13.7 m) |
| Deck Area | 463.1 sq m |
| Main Spans | 3 |
| Year Built | 1962 (reconstructed 1988) |
Traffic
| Avg Daily Traffic | 16,293 (2024) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 1 |
Inspection & Ownership
| Last Inspection | 224 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | A090422YRDOTNBI |