Manter Mill Road over Cohas Brook
Good Condition26 years old511 vehicles/day
Location
| State | New Hampshire |
| County | Rockingham |
| Location | 0.25ml Junc. Old Derry RD |
| Carries | Manter Mill Road |
| Crosses | Cohas Brook |
| Coordinates | 42.93792, -71.37020 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 8 (Very Good) |
| Culvert | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 34.1 ft (10.4 m) |
| Max Span | 32.2 ft (9.8 m) |
| Deck Area | 75.9 sq m |
| Main Spans | 1 |
| Year Built | 2000 |
Traffic
| Avg Daily Traffic | 511 (2023) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 015400890018700 |