Griffin Mill Road over Maple Falls Brook
Poor Condition176 years old208 vehicles/day
Location
| State | New Hampshire |
| County | Rockingham |
| Location | 300 Yds N. Of Nh 121 |
| Carries | Griffin Mill Road |
| Crosses | Maple Falls Brook |
| Coordinates | 43.00560, -71.34909 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 1 (Imminent Failure) |
| Superstructure | 1 (Imminent Failure) |
| Substructure | 1 (Imminent Failure) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 28.9 ft (8.8 m) |
| Max Span | 24.0 ft (7.3 m) |
| Deck Width | 14.4 ft (4.4 m) |
| Deck Area | 38.7 sq m |
| Main Spans | 1 |
| Year Built | 1850 (reconstructed 1991) |
Traffic
| Avg Daily Traffic | 208 (2023) |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 16 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 001300950012700 |