US 3 over Cone Brook
Fair Condition74 years old2,758 vehicles/day
Location
| State | New Hampshire |
| County | Coos |
| Location | 3.7 Mi NE Stratford Tl |
| Carries | US 3 |
| Crosses | Cone Brook |
| Coordinates | 44.81756, -71.56761 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 43.0 ft (13.1 m) |
| Max Span | 36.1 ft (11 m) |
| Deck Width | 35.1 ft (10.7 m) |
| Deck Area | 140.2 sq m |
| Main Spans | 1 |
| Year Built | 1952 |
Traffic
| Avg Daily Traffic | 2,758 (2023) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 005100590008900 |