Wyman Ave over Piscataqua Riv Back Chnl
Rockingham County, New Hampshire · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Wyman Ave over Piscataqua Riv Back Chnl in Rockingham 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 1941 and reconstructed in 1984, making it 84 years old at the 2025 inventory.
- It carries about 4,000 vehicles a day (traffic count year 2011).
- It is one of 87 of the 309 inventoried bridges in Rockingham County rated fair (28.2%); 22 (7.1%) 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 August 2023, on a 24-month routine inspection cycle.
- It has fracture-critical members (NBI item 92A): steel tension members without a redundant load path, which get their own scheduled inspections.
- 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 → (43.08508, -70.73578)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous steel girder and floorbeam |
| Length | about 200 ft |
| Location | 0.1 Km South of SR 103 |
| NBI structure number | 1NH0BR2 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
| Fracture critical (item 92A) | Yes |
Source: FHWA National Bridge Inventory, 2025 data as reported by the New Hampshire department of transportation.
Busiest bridges in Rockingham County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-95 over Access Road | 1950 | 86,429 | Fair |
| I-95 over Maplewood Avenue | 1970 | 76,465 | Fair |
| I-95 over Preble Way CSX | 1971 | 74,766 | Fair |
| I-95 over Piscataqua River | 1971 | 74,766 | Fair |
| I-95 over Market Street | 1970 | 70,573 | Good |
| US 4 Nh 16 Sp Tpk over Shawayttuck | 1983 | 68,236 | Good |
All bridges nearby: Rockingham County, NH bridge conditions · every bridge in Rockingham County · New Hampshire bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.