W Hopkinton Road over Contoocook River
Merrimack County, New Hampshire · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- W Hopkinton Road over Contoocook River in Merrimack County, New Hampshire, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1853 and reconstructed in 1996, making it 172 years old at the 2025 inventory.
- It carries about 558 vehicles a day (traffic count year 2023).
- Its listed owner is a city or municipal highway agency.
- It is one of 153 of the 326 inventoried bridges in Merrimack County rated fair (46.9%); 27 (8.3%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated June 2023, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (43.19269, -71.74878)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Timber through truss |
| Length | about 168 ft |
| Location | 206 Ft Fr Clement Hill R |
| NBI structure number | 012900550011200 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | June 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the New Hampshire department of transportation.
Busiest bridges in Merrimack County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-93 Fee Tpk Ramp over Hackett Hill Road | 1978 | 86,013 | Fair |
| I-93 Fee Tpk over Cross Road | 1956 | 82,029 | Fair |
| I-93 Fee Tpk over Ramp A-b | 1957 | 79,640 | Fair |
| I-93 Fee Tpk over Dow Road | 1957 | 78,501 | Fair |
| I-93 Fee Tpk over Robinson Road | 1957 | 78,501 | Fair |
| I-93 Fee Tpk over US 3 Manchester Street | 2000 | 75,054 | Good |
All bridges nearby: Merrimack County, NH bridge conditions · every bridge in Merrimack County · New Hampshire bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.