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Bridge conditions in New London County, Connecticut

442 inventoried bridges · 23 rated poor · 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

23 of the 442 bridges the federal inventory lists in New London County are rated poor; the rest split 121 good and 298 fair.

23 of the 442 bridges in New London County, Connecticut, are rated in poor condition (5.2%) in the 2025 National Bridge Inventory, as of August 20, 2026.
121 bridges (27.4%) are rated good and 298 (67.4%) fair.
The median New London County bridge was built in 1964.
The busiest poor-rated bridge is Interstate-95 over Route 161 (built 1958), carrying about 59,100 vehicles a day.

Good 27.4% · Fair 67.4% · Poor 5.2% of 442 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
Interstate-95 over Route 161	1958	59,100	Poor
Interstate 95 Nort over Thames Rv RR Local Roads	1943	42,600	Poor
Interstate-395 over Bishop Crossing Rd	1958	34,800	Poor
Interstate-95 SB over Route 12	1964	33,500	Poor
Interstate-95 Sout over Groton Reservoir	1964	30,500	Poor
US Rte 1 W Broad S over Pawcatuck River	1932	16,400	Poor
Route 32 over New England Central RR.	1941	11,800	Poor
Route 2 Eastbound over Route 85	1966	11,200	Poor
New London Tpke over Yantic River	1963	7,400	Poor
US Route 1 NB over I-95 Ramp 310 SR 641 SB	1973	6,100	Poor
Alpha Avenue over Amtrak RR & Local Roads	1940	4,200	Poor
Route 32 NB over I-95 US 1 NB SR 623&641	1974	3,000	Poor
Route 207 over Beaver Brook	1938	2,800	Poor
Route 156 over Four Mile River	1982	2,800	Poor
Groton Long Pt Rd over Palmer Cove	1935	2,025	Poor
Route 163 over Oxoboxo Brook	1925	1,600	Poor
Lawler Lane over Interstate-395	1958	700	Poor
Taylor Hill Road over Interstate-395	1958	645	Poor
Cranberry Pond Rd over Interstate 395	1958	537	Poor
Forge Hill Road over Pachaug River	1920	482	Poor
Salem Road over East Br Eight Mile River	1991	421	Poor
Colony Road over Latimer Brook	1982	328	Poor
Prospect Hill Road over Route 2	1959	162	Poor

Busiest bridges in the county

Bridge	Built	Vehicles/day	Condition
Interstate-95 over Latimers Brook	1958	72,700	Fair
Interstate-95 over Lyme Street	1948	69,600	Fair
Interstate-395 over Leffingwell Road	1958	63,200	Fair
Interstate-395 over Trading Cove Brook	1958	63,200	Fair
Interstate-95 over North Bride Brook Road	1958	61,700	Fair
Interstate-95 over Route 161	1958	59,100	Poor
Interstate-95 over Lieutenant River	1948	59,000	Fair
Interstate-95 over Route 156	1992	59,000	Fair
Interstate-395 over Oxoboxo Brk & Nec Aband.	1958	58,700	Fair
Interstate-395 over Raymond Hill Rd & Brook	1958	58,300	Fair

Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.

All of Connecticut: Connecticut 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.