ST 18 Main ST over Water Mill River
Fair Condition69 years old47,300 vehicles/day
Location
| State | Massachusetts |
| County | Norfolk |
| Location | .16 Km N Of ST 3 |
| Carries | ST 18 Main ST |
| Crosses | Water Mill River |
| Coordinates | 42.19601, -70.95574 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 7 (Good) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 36.1 ft (11 m) |
| Max Span | 17.1 ft (5.2 m) |
| Deck Width | 188.0 ft (57.3 m) |
| Deck Area | 630.3 sq m |
| Main Spans | 2 |
| Year Built | 1957 |
Traffic
| Avg Daily Traffic | 47,300 (2025) |
| Truck Traffic | 4% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 125 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | W32028349DOTNBI |