I 495 SB over Water Assabet River
Poor Condition63 years old47,879 vehicles/day
Location
| State | Massachusetts |
| County | Middlesex |
| Location | 0.25 Mi NW RT 290 |
| Carries | I 495 SB |
| Crosses | Water Assabet River |
| Coordinates | 42.36838, -71.59530 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 83.0 ft (25.3 m) |
| Max Span | 78.1 ft (23.8 m) |
| Deck Width | 56.1 ft (17.1 m) |
| Deck Area | 432.6 sq m |
| Main Spans | 1 |
| Year Built | 1963 |
Traffic
| Avg Daily Traffic | 47,879 (2023) |
| Truck Traffic | 19% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 723 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | H2501627GDOTNBI |