Bridge conditions in Somerset County, Maine
173 inventoried bridges · 40 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
About one in 4 bridges in Somerset County is rated in poor condition: 40 of 173 on the federal inventory, one of the higher shares in Maine.
- 40 of the 173 bridges in Somerset County, Maine, are rated in poor condition (23.1%) in the 2025 National Bridge Inventory, as of .
- 36 bridges (20.8%) are rated good and 97 (56.1%) fair.
- The median Somerset County bridge was built in 1964.
- The busiest poor-rated bridge is Oxbow Rd over Interstate 95 NB & SB (built 1963), carrying about 10,232 vehicles a day.
Good 20.8% · Fair 56.1% · Poor 23.1% of 173 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 |
|---|---|---|---|
| Oxbow Rd over Interstate 95 NB & SB | 1963 | 10,232 | Poor |
| I 95 SB over Webb Road | 1964 | 9,250 | Poor |
| I 95 SB over Route 152 & Mcrr | 1964 | 8,970 | Poor |
| I 95 NB over Webb Road | 1964 | 8,530 | Poor |
| I 95 SB over Somerset Avenue | 1964 | 8,190 | Poor |
| Main St over Mill Canal | 1931 | 7,854 | Poor |
| I 95 NB over Somerset Avenue | 1964 | 7,220 | Poor |
| Old Point Av over Jones Brook | 1963 | 4,464 | Poor |
| N Main St over Sebasticook River | 1985 | 4,336 | Poor |
| Main St over Sebasticook River | 1935 | 3,860 | Poor |
| US 201 over Kelly Brook | 1952 | 2,300 | Poor |
| US Route 201 over East Branch Sandy Str | 1955 | 1,480 | Poor |
| Athens Rd over Higgins Brook | 1959 | 1,320 | Poor |
| Main St over Ferguson Stream | 1929 | 1,180 | Poor |
| Shadagee Rd over Kincaid Brook | 1940 | 1,127 | Poor |
| Brighton Rd over E.br.wesserunset Stream | 1935 | 1,020 | Poor |
| River Rd over Lemon Stream | 1923 | 659 | Poor |
| School St over Carrabasset River | 1923 | 653 | Poor |
| Notch Rd over Wesserunsett Stream | 1972 | 649 | Poor |
| Kennebec River Rd over Martin Stream | 1934 | 599 | Poor |
| Main St over Higgins Stream | 1930 | 550 | Poor |
| Ripley Rd over Ferguson Stream | 1938 | 335 | Poor |
| Dexter Rd over Ferguson Stream | 1939 | 250 | Poor |
| Water St over Overflow Br Sebasticook | 1925 | 210 | Poor |
| Long Falls Dam Rd over Michael Brook | 1932 | 200 | Poor |
| Main St over Pleasant Pond Stream | 1922 | 196 | Poor |
| Pleasant Pond Rd over Pleasant Pond Stream | 1945 | 180 | Poor |
| Huff Rd over Wesserunsett Stream | 1936 | 170 | Poor |
| Long Falls Dam Rd over Pond Stream | 1949 | 145 | Poor |
| Tannery Bridge Rd over Lemon Stream | 1950 | 90 | Poor |
| Sandy River Rd over Lemon Str | 1962 | 68 | Poor |
| Four Mile Square R over Hilton Brook | 1998 | 67 | Poor |
| Stewart Hill Rd over Cold Bk | 1978 | 63 | Poor |
| Red Bridge Rd over Carrabasset Str | 1936 | 52 | Poor |
| Back Rd over Sandy Stream | 1954 | 48 | Poor |
| Last Round UP Rd over Little Alder Brook | 1988 | 35 | Poor |
| Hall Farm Rd over Lemon Brook | 1975 | 31 | Poor |
| Old Sandy River Rd over Bog Stream | 1986 | 21 | Poor |
| Old Canada Rd over Austin Stream Overflow | 1916 | 20 | Poor |
| Road "f" over Hale Brook | 1990 | 2 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Island Av over Kennebec River | 1976 | 21,774 | Fair |
| US2 & US201 over Kennebec River | 1976 | 18,813 | Fair |
| Bridge St over W Channel Kennebec River | 2003 | 13,343 | Good |
| Bridge St over C Channel Kennebec River | 2003 | 13,237 | Good |
| I 95 over Route 201 (skowhegan Rd) | 1960 | 12,470 | Fair |
| Oxbow Rd over Interstate 95 NB & SB | 1963 | 10,232 | Poor |
| I 95 over M C RR | 1964 | 9,750 | Fair |
| I 95 SB over Webb Road | 1964 | 9,250 | Poor |
| I 95 SB over N Main St(madawaska Rd) | 1964 | 8,970 | Fair |
| I 95 SB over Sebasticook River | 1964 | 8,970 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Maine: Maine 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.