Lower Ridge Road over Academy Brook
Fair Condition95 years old533 vehicles/day
Location
| State | New Hampshire |
| County | Merrimack |
| Location | 1.6 Mi Fr Nh 106 |
| Carries | Lower Ridge Road |
| Crosses | Academy Brook |
| Coordinates | 43.35848, -71.44653 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Arch - Deck |
| Total Length | 44.9 ft (13.7 m) |
| Max Span | 44.9 ft (13.7 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 100.0 sq m |
| Main Spans | 1 |
| Year Built | 1931 |
Traffic
| Avg Daily Traffic | 533 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 015501640012400 |