St109 Main ST over Water Charles River
Fair Condition126 years old14,554 vehicles/day
Location
| State | Massachusetts |
| County | Norfolk |
| Location | At Millis T.l. |
| Carries | St109 Main ST |
| Crosses | Water Charles River |
| Coordinates | 42.18114, -71.32268 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Concrete |
| Design | Arch - Deck |
| Total Length | 66.9 ft (20.4 m) |
| Max Span | 62.3 ft (19 m) |
| Deck Width | 50.2 ft (15.3 m) |
| Deck Area | 312.1 sq m |
| Main Spans | 1 |
| Year Built | 1900 (reconstructed 1958) |
Traffic
| Avg Daily Traffic | 14,554 (2023) |
| Truck Traffic | 15% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | M110032AJDOTNBI |