Bog Road over Patten Brook
Fair Condition76 years old96 vehicles/day
Location
| State | New Hampshire |
| County | Grafton |
| Location | 0.5mi S Alexandria Ctr |
| Carries | Bog Road |
| Crosses | Patten Brook |
| Coordinates | 43.60824, -71.79322 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 29.9 ft (9.1 m) |
| Max Span | 25.9 ft (7.9 m) |
| Deck Width | 16.1 ft (4.9 m) |
| Deck Area | 44.6 sq m |
| Main Spans | 1 |
| Year Built | 1950 (reconstructed 2014) |
Traffic
| Avg Daily Traffic | 96 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 000301740011600 |