St146 SB over Water Blackstone River
Fair Condition29 years old28,704 vehicles/day
Location
| State | Massachusetts |
| County | Worcester |
| Location | .1 Mi. N. Of U.s.-20 |
| Carries | St146 SB |
| Crosses | Water Blackstone River |
| Coordinates | 42.21595, -71.78523 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 4 (Poor) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 670.6 ft (204.4 m) |
| Max Span | 172.2 ft (52.5 m) |
| Deck Width | 42.3 ft (12.9 m) |
| Deck Area | 2636.8 sq m |
| Main Spans | 4 |
| Year Built | 1997 |
Traffic
| Avg Daily Traffic | 28,704 (2023) |
| Truck Traffic | 19% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | M220597LWDOTNBI |