Griffin Road over Griffin Brook
Good Condition18 years old96 vehicles/day
Location
| State | New Hampshire |
| County | Merrimack |
| Location | 1/4 Mi Center Hill RD Jct |
| Carries | Griffin Road |
| Crosses | Griffin Brook |
| Coordinates | 43.20373, -71.29331 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 9 (Excellent) |
| Culvert | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 22.0 ft (6.7 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Area | 48.9 sq m |
| Main Spans | 1 |
| Year Built | 2008 |
Traffic
| Avg Daily Traffic | 96 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 007901510009700 |