I 93 over Water Mystic River
Fair Condition63 years old250,350 vehicles/day
Location
| State | Massachusetts |
| County | Middlesex |
| Location | .8 Km S Of Jct I93&sr60 |
| Carries | I 93 |
| Crosses | Water Mystic River |
| Coordinates | 42.41476, -71.10389 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| 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 | 257.9 ft (78.6 m) |
| Max Span | 85.0 ft (25.9 m) |
| Deck Width | 139.4 ft (42.5 m) |
| Deck Area | 3340.5 sq m |
| Main Spans | 3 |
| Year Built | 1963 (reconstructed 2011) |
Traffic
| Avg Daily Traffic | 250,350 (2019) |
| Truck Traffic | 6% |
| Lanes On Bridge | 8 |
Inspection & Ownership
| Last Inspection | December 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | M120363B4DOTNBI |