Middlesex County, CT

304 public highway bridges

Middlesex County Bridge Snapshot

Middlesex County, Connecticut contains 304 public highway bridges in the FHWA National Bridge Inventory. Roughly 30.3% are rated “Good,” 46.1% “Fair,” 3.3% “Poor,” and 3.3% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in CT are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

304
Total Bridges
30.3%
Good
3.3%
Poor
3.3%
Structurally Deficient

Condition Distribution

Good
30.3% (92)
Fair
46.1% (140)
Poor
3.3% (10)
SD
3.3% (10)

All Bridges (304)

MIDDLEFIELD STREET

Fair

Over: COGINCHAUG RIVER

0.1 MI. W OF ROUTE 157, Middlesex, CT

Built 1900 Load: 43.4 t ADT: 1,622

SHIPYARD ROAD

Fair

Over: MINE BROOK

0.3 MI S OF ROUTE 151, Middlesex, CT

Built 1941 Load: 43.5 t ADT: 42

ROUTE 166

Fair

Over: AMTRAK RAILROAD

0.2 MI WEST OF US ROUTE 1, Middlesex, CT

Built 1933 Load: 43.5 t ADT: 12,500

ROUTE 9 SOUTHBOUND

Fair

Over: CEDAR GROVE TERRACE

1.0 MI S OF ROUTE 153, Middlesex, CT

Built 1966 Load: 43.7 t ADT: 17,500

ROUTE 9 NORTHBOUND

Fair

Over: TURKEY HILL ROAD

0.6 MI N OF ROUTE 82, Middlesex, CT

Built 1967 Load: 44.1 t ADT: 15,600

LIBERTY STREET #1

Fair

Over: AMTRAK RAILROAD

0.2 MI N OF US ROUTE 1, Middlesex, CT

Built 1992 Load: 44.2 t ADT: 2,900

ROUTE 154

Fair

Over: MILL CREEK

2.3 MI NORTH OF RTE 82, Middlesex, CT

Built 1928 Load: 44.6 t ADT: 4,200

INTERSTATE-95

Fair

Over: COW HILL ROAD

0.4 MI S OF ROUTE 81, Middlesex, CT

Built 1957 Load: 45.0 t ADT: 52,200

ROUTE 9 NORTHBOUND

Fair

Over: BARTHOLOMEW ROAD

0.6 MI S OF ROUTE 155, Middlesex, CT

Built 1959 Load: 46.3 t ADT: 22,700

INTERSTATE-395

Fair

Over: KATE DOWNING ROAD

3 MILES NORTH OF ROUTE201, Middlesex, CT

Built 1958 Load: 47.3 t ADT: 30,000

ROUTE 9 NORTHBOUND

Fair

Over: P&W RAILROAD

NEXT TO SEWAGE TREAT PLNT, Middlesex, CT

Built 1967 Load: 47.3 t ADT: 32,300

SR 602

Fair

Over: FALLS RIVER

1.1 MI N OF ROUTE 154, Middlesex, CT

Built 1983 Load: 47.6 t ADT: 4,100

ROUTE 17

Fair

Over: MAIN STREET EXTENSION

0.15 MI OFF RT9SB EXIT 13, Middlesex, CT

Built 1955 Load: 48.0 t ADT: 10,200

ROUTE 154

Fair

Over: SOUTH COVE

4.08 MI NORTH OF ROUTE 1, Middlesex, CT

Built 1994 Load: 48.0 t ADT: 1,700

ROUTE 145

Fair

Over: AMTRAK RAILROAD

0.2 MI N OF US ROUTE 1, Middlesex, CT

Built 1977 Load: 48.6 t ADT: 4,300

MINER STREET

Fair

Over: FALL BROOK

0.7 MI W OF ROUTE 217, Middlesex, CT

Built 1978 Load: 48.6 t ADT: 1,435

ROUTE 17

Fair

Over: CARR BROOK

1.6 MI N OF ROUTE 66, Middlesex, CT

Built 1938 Load: 48.6 t ADT: 3,200

JACKSON STREET #1

Fair

Over: P & W RAILROAD

0.1 MI N OF ROUTE 66, Middlesex, CT

Built 1936 Load: 49.0 t ADT: 56

INTERSTATE-91 NB

Fair

Over: NORTH ROAD

.57 MI NORTH OF ROUTE 372, Middlesex, CT

Built 1965 Load: 49.6 t ADT: 58,900

INTERSTATE 95 NORT

Fair

Over: CONNECTICUT RV, FERRY RD

.72 MI. OF ROUTE 156, Middlesex, CT

Built 1993 Load: 49.9 t ADT: 36,500

ROUTE 68

Fair

Over: ALLYNS BROOK

0.4 MI W OF RT 17, Middlesex, CT

Built 1929 Load: 50.2 t ADT: 8,900

ROUTE 81

Fair

Over: INDIAN RIVER

2.25 MI N. OF I-95, Middlesex, CT

Built 1988 Load: 50.2 t ADT: 7,000

ROUTE 9 NORTHBOUND

Fair

Over: CANDLEWOOD HILL RD & BRK

0.5 MI WEST OF ROUTE 154, Middlesex, CT

Built 1965 Load: 50.5 t ADT: 17,500

ROUTE 9 SOUTHBOUND

Fair

Over: P&W RAILROAD

.2 MI NORTH OF RT 99, Middlesex, CT

Built 1967 Load: 50.6 t ADT: 33,400

ROUTE 157

Fair

Over: COGINCHAUG RIVER

AT MIDDLETOWN TOWN LINE, Middlesex, CT

Built 1936 Load: 50.7 t ADT: 2,600

ROUTE 17

Fair

Over: RESERVOIR BRK & CATTLE P

0.5 MI N OF ROUTE 17A, Middlesex, CT

Built 1925 Load: 51.2 t ADT: 7,200

ROUTE 157

Fair

Over: P&W RAILROAD

0.4 MI NORTH OF DURHAM TL, Middlesex, CT

Built 1980 Load: 54.4 t ADT: 4,100

US ROUTE 1

Fair

Over: OYSTER RIVER

0.1 MI S OF ROUTE 154, Middlesex, CT

Built 1971 Load: 56.0 t ADT: 13,800

INTERSTATE-95

Fair

Over: SCHOOL HOUSE ROAD

0.5 MI N OF ROUTE 166, Middlesex, CT

Built 1957 Load: 56.1 t ADT: 48,000

ROUTE 9 NORTHBOUND

Fair

Over: KELSEY HILL ROAD

1.1 MI S OF ROUTE 80, Middlesex, CT

Built 1967 Load: 57.3 t ADT: 17,000

CIDER MILL ROAD

Fair

Over: COGINCHAUG RIVER

235 FT E OF ROUTE 157, Middlesex, CT

Built 1933 Load: 59.0 t ADT: 1,050

ROUTE 3

Fair

Over: MATTABESSET RIVER

ADJ TO JUNC RTE 3 & 372, Middlesex, CT

Built 1933 Load: 63.8 t ADT: 15,300

ABNER LANE

Fair

Over: POND MEADOW BROOK

0.1 MI W OF ROUTE 148, Middlesex, CT

Built 1998 Load: 64.9 t ADT: 119

POND MEADOW ROAD

Fair

Over: FALLS RIVER

0.2 MI S OF MAIN ST NO 2, Middlesex, CT

Built 1980 Load: 65.4 t ADT: 1,100

INTERSTATE-95

Fair

Over: ELM STREET

0.8 MI N OF US ROUTE 1, Middlesex, CT

Built 1957 Load: 66.4 t ADT: 24,000

ROUTE 9 NORTHBOUND

Fair

Over: MATTABESSET RIVER

1.5 MI SOUTH OF ROUTE 72, Middlesex, CT

Built 1988 Load: 69.8 t ADT: 32,900

BELL STREET

Fair

Over: SAWMILL BROOK

200 FT N OF SAWMILL ROAD, Middlesex, CT

Built 1955 Load: 94.6 t ADT: 166

INTERSTATE-95

Fair

Over: PATCHOGUE RIVER

0.1 MI S OF ROUTE 153, Middlesex, CT

Built 1957 Load: 97.2 t ADT: 50,800

DENNISON ROAD

Fair

Over: FALLS RIVER

300 FT E OF CURIOSITY LN, Middlesex, CT

Built 1968 Load: 97.2 t ADT: 1,182

RIVER ROAD # 2

Fair

Over: BROOK

0.2 MI S OF AIRCRAFT ROAD, Middlesex, CT

Built 1970 Load: 97.2 t ADT: 53

WESLEYAN HILLS ROA

Fair

Over: LONG HILL BROOK

50 FEET WEST OF ROUTE 17, Middlesex, CT

Built 1960 Load: 97.2 t ADT: 2,299

ROUTE 82

Fair

Over: ROARING BROOK

0.2 MI W OF ROUTE 154, Middlesex, CT

Built 1982 Load: 97.2 t ADT: 7,600

CESCA LANE

Fair

Over: BALL BROOK

100 FT N OF HADDAM Q. RD, Middlesex, CT

Built 2000 Load: 97.2 t ADT: 208

ROUTES 9 & 17

Fair

Over: SUMNER BROOK

JCT OF RTES 9 & 17, Middlesex, CT

Built 1953 Load: 99.9 t ADT: 41,400

ROUTE 17

Fair

Over: SUMNER BROOK

0.4 MI S OF ROUTE 9, Middlesex, CT

Built 1955 Load: 99.9 t ADT: 4,600

SR 609

Fair

Over: MOODUS RIVER

0.2 MI WEST OF ROUTE 149, Middlesex, CT

Built 1930 Load: 99.9 t ADT: 1,900

ROUTE 151

Fair

Over: PINE BROOK

0.8 MI N OF ROUTE 196, Middlesex, CT

Built 1930 Load: 99.9 t ADT: 1,800

ROUTE 9 RAMP 028

Fair

Over: PONSET BROOK

ROUTE 9 NB EXIT 9 ON RAMP, Middlesex, CT

Built 1965 Load: 99.9 t ADT: 3,500

ROUTE 9

Fair

Over: FALLS RIVER

0.8 MI S OF ROUTE 154, Middlesex, CT

Built 1967 Load: 99.9 t ADT: 34,000

ROUTE 66

Fair

Over: ABANDONED RR & DRAINAGE

0.1 MI E OF ROUTE 16, Middlesex, CT

Built 1977 Load: 99.9 t ADT: 8,600

Related

Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial