Bridge conditions in Rockingham County, New Hampshire
309 inventoried bridges · 22 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
22 of the 309 bridges the federal inventory lists in Rockingham County are rated poor; the rest split 200 good and 87 fair.
- 22 of the 309 bridges in Rockingham County, New Hampshire, are rated in poor condition (7.1%) in the 2025 National Bridge Inventory, as of .
- 200 bridges (64.7%) are rated good and 87 (28.2%) fair.
- The median Rockingham County bridge was built in 1981.
- The busiest poor-rated bridge is Nh 33 over Winnicut River (built 1959), carrying about 17,736 vehicles a day.
Good 64.7% · Fair 28.2% · Poor 7.1% of 309 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Nh 33 over Winnicut River | 1959 | 17,736 | Poor |
| US 1 over CSX | 1935 | 15,436 | Poor |
| US 1 over Csx(abd) | 1936 | 14,314 | Poor |
| Nh 1A over Hampton River | 1949 | 9,402 | Poor |
| Maplewood Avenue over North Mill Pond | 1940 | 5,829 | Poor |
| Bridge Street over Spicket River | 1900 | 4,883 | Poor |
| NH152 over North River | 1925 | 3,719 | Poor |
| Nh 1B over Little Harbor | 1942 | 3,359 | Poor |
| NH111A over Exeter River | 1978 | 3,259 | Poor |
| Hall Road over Little Cohas Brook | 1974 | 1,964 | Poor |
| Hanson Road over Exeter River | 1932 | 1,854 | Poor |
| Cate Street over Hodgson Brook | 1940 | 1,096 | Poor |
| Causeway Road over Mill Creek | 1940 | 639 | Poor |
| Whitehall Road over Powwow River | 1976 | 586 | Poor |
| Dudley Road over Lamprey River | 1914 | 547 | Poor |
| Coakley Road over Hodgson Brook | 1940 | 480 | Poor |
| Pond Road over CSX | 1920 | 438 | Poor |
| Old Deerfield Road over Brook | 1920 | 250 | Poor |
| Scribner Road over Exeter River | 1941 | 234 | Poor |
| Griffin Mill Road over Maple Falls Brook | 1850 | 208 | Poor |
| Shepard Home Road over Exeter River | 1986 | 208 | Poor |
| Hilldale Ave over Powwow River | 1920 | 208 | Poor |
Busiest bridges in the 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 |
| US 4 Nh 16 Sp Tpk over Gosling Road | 1993 | 59,897 | Good |
| NH101 over Tower Hill Road | 1964 | 52,392 | Fair |
| I-93 NB over NH111A | 2011 | 52,370 | Good |
| I-95 SB over CSX | 1972 | 48,687 | Good |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of New Hampshire: New Hampshire bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.