Valley Road over Dan Hole River
Carroll County, New Hampshire · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Valley Road over Dan Hole River in Carroll County, New Hampshire, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2007, making it 18 years old at the 2025 inventory.
- It carries about 216 vehicles a day (traffic count year 2023).
- Its listed owner is a city or municipal highway agency.
- It is one of 102 of the 193 inventoried bridges in Carroll County rated good (52.8%); 10 (5.2%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated October 2024, on a 24-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (43.75195, -71.19277)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Concrete frame |
| Length | about 30 ft |
| Location | 2.8 Mi Fr Old Nh Rte 16 |
| NBI structure number | 020401230023300 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 2024 |
| 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 Carroll County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Nh 16 NH113 over Pequawket Pond | 1940 | 19,487 | Fair |
| US302 Nh 16 over Artist Falls Brook | 1900 | 13,702 | Good |
| US302 over Saco River | 1972 | 13,313 | Fair |
| Nh 16 over Branch River | 1966 | 12,893 | Fair |
| Nh 16 over Saco River | 1945 | 12,188 | Fair |
| Nh 16 Nh 25 over Chocorua River | 1955 | 11,700 | Good |
All bridges nearby: Carroll County, NH bridge conditions · every bridge in Carroll County · New Hampshire bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.