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)

ROUTE 9 SOUTHBOUND

Unknown

Over: ROUTE 148 (WEST MAIN ST)

ROUTE 9 EXIT NO. 6, Middlesex, CT

Built 1967 ADT: 4,900

ROUTE 9 SOUTHBOUND

Unknown

Over: RTE 9 RAMP 043 & SR 901

AT END OF RT 99, Middlesex, CT

Built 1967 ADT: 3,800

ROUTE 9 NORTHBOUND

Unknown

Over: RTE 9 RAMP 043 & SR 901

END RT 99 AT RT 9, Middlesex, CT

Built 1968 ADT: 70

ROUTE 372

Unknown

Over: ROUTE 9

ROUTE 9 EXIT NO. 19, Middlesex, CT

Built 1967 ADT: 56,400

ROUTE 3

Unknown

Over: ROUTE 9

2.44 MI SOUTH OF OP I-91, Middlesex, CT

Built 1967 ADT: 75,400

EVERGREEN ROAD

Unknown

Over: ROUTE 9

1.1 MI S OF JCT ROUTE I91, Middlesex, CT

Built 1967 ADT: 75,400

COLES ROAD

Unknown

Over: ROUTE 9 SB & RAMP

0.9 MILE NORTH OF ROUTE 3, Middlesex, CT

Built 1967 ADT: 32,300

COLES ROAD

Unknown

Over: ROUTE 9 NORTHBOUND

.42 MI SOUTH JCT RTE I91, Middlesex, CT

Built 1968 ADT: 35,200

NORTH ROAD

Unknown

Over: ROUTE 9 SOUTHBOUND

OVERPASS ROUTE 9 SB, Middlesex, CT

Built 1988 ADT: 35,000

NORTH ROAD

Unknown

Over: ROUTE 9 NB & RAMP

OVERPASS ROUTE 9 NB, Middlesex, CT

Built 1988 ADT: 35,000

I-91 NB TR 818

Unknown

Over: INTERSTATE-91 NORTHBOUND

1.4 MI N OF ROUTE 373, Middlesex, CT

Built 1988 ADT: 49,100

Interstate 95

Unknown

Over: ROUTE 9 NB & I-95 TR 816

1.4 MI N OF ROUTE 154, Middlesex, CT

Built 1992 ADT: 10,900

DENNISON ROAD

Fair

Over: CONN VALLEY RAILROAD

580 FT N OF ROUTE 154, Middlesex, CT

Built 1910 Load: 19.8 t ADT: 1,274

ROUTE 80

Fair

Over: ROGERS POND

0.2 MI E OF ROUTE 9, Middlesex, CT

Built 1941 Load: 21.4 t ADT: 5,700

BERLIN STREET

Fair

Over: P & W RAILROAD

0.3 MI W OF ROUTE 66, Middlesex, CT

Built 1936 Load: 21.4 t ADT: 167

BEACH PARK ROAD

Fair

Over: HAMMOCK RIVER

0.5 MI S. OF US ROUTE 1, Middlesex, CT

Built 1947 Load: 21.9 t ADT: 3,039

UNION STREET

Fair

Over: DEEP RIVER

350 FT N OF ROUTE 80, Middlesex, CT

Built 1930 Load: 22.0 t ADT: 1,600

BRICKYARD ROAD

Fair

Over: MENUNKETESUCK RIVER

400' N OF FAIRY DELL ROAD, Middlesex, CT

Built 1934 Load: 23.0 t ADT: 919

INTERSTATE-91 NB

Fair

Over: MATTABESSET RIVER

475 FT S OF ROUTE 372, Middlesex, CT

Built 1965 Load: 23.7 t ADT: 55,300

ROUTE 17

Fair

Over: LONG HILL BROOK

1.3 MI. N OF ROUTE 155, Middlesex, CT

Built 1958 Load: 24.3 t ADT: 13,800

ROUTE 17 SB

Fair

Over: EAST MAIN STREET

0.1 MI SOUTH OF EXIT 10, Middlesex, CT

Built 1949 Load: 24.3 t ADT: 6,800

CLARK HILL ROAD

Fair

Over: ROARING BROOK

1.7 MI E. OF ROUTE 82, Middlesex, CT

Built 1935 Load: 26.6 t ADT: 2,121

ROUTE 9 SOUTHBOUND

Fair

Over: FILLEY ROAD

1/2 MI SO BEAVERMEADOW RD, Middlesex, CT

Built 1967 Load: 28.2 t ADT: 15,500

ROUTE 16

Fair

Over: POCOTOPAUG CREEK

425 FT E OF ROUTE 196, Middlesex, CT

Built 1939 Load: 29.2 t ADT: 6,300

ROUTE 82

Fair

Over: EIGHT MILE RIVER

0.6 MI E OF ROUTE 156, Middlesex, CT

Built 1925 Load: 29.2 t ADT: 3,300

ROUTE 157

Fair

Over: ASMUN BROOK

0.1 MI N OF ROUTE 68, Middlesex, CT

Built 1920 Load: 29.2 t ADT: 4,100

INTERSTATE-91 NB

Fair

Over: SMITH STREET

1.49 MI SOUTH OF RTE 372, Middlesex, CT

Built 1965 Load: 29.2 t ADT: 55,300

ROUTE 82

Fair

Over: RUTH HILL RD&ROARING BK

1 MI W OF ROUTE 154, Middlesex, CT

Built 1971 Load: 29.4 t ADT: 7,600

ROUTE 9 SOUTHBOUND

Fair

Over: HUBBARD ROAD

1.0 MI S OF ROUTE 80, Middlesex, CT

Built 1966 Load: 29.5 t ADT: 15,600

KELSEYTWN BRDGE RD

Fair

Over: MENUNKETESUCK RIVER

250 FT W OF RESERVOIR RD, Middlesex, CT

Built 1938 Load: 29.8 t ADT: 584

US ROUTE 1

Fair

Over: PATCHOGUE RIVER

1.1 MI S OF ROUTE 153, Middlesex, CT

Built 1925 Load: 30.5 t ADT: 7,400

ROUTE 9 NORTHBOUND

Fair

Over: MATTABESSET RIVER

0.1 MI SO. OF CROMWELL TL, Middlesex, CT

Built 1960 Load: 31.1 t ADT: 33,100

ROUTE 9 NORTHBOUND

Fair

Over: BEAVER MEADOW ROAD

ROUTE 9 EXIT NO. 8, Middlesex, CT

Built 1966 Load: 31.4 t ADT: 15,100

ESSEX STREET

Fair

Over: PRATT COVE

0.5 MI E OF ROUTE 154, Middlesex, CT

Built 1999 Load: 31.7 t ADT: 1,400

STRICKLAND ROAD

Fair

Over: COGINCHAUG RIVER

0.3 MI E OF RTE 157, Middlesex, CT

Built 1936 Load: 31.8 t ADT: 1,234

SR 625

Fair

Over: AMTRAK RAILROAD

0.2 MI N OF US ROUTE 1, Middlesex, CT

Built 1890 Load: 32.1 t ADT: 3,700

INTERSTATE-91 SB

Fair

Over: EVERGREEN ROAD

.69 MI SO OF RTE 9 O-PASS, Middlesex, CT

Built 1965 Load: 32.4 t ADT: 58,900

SSR 434

Fair

Over: BROOK

6.7 MI N OF ROUTE 82, Middlesex, CT

Built 1937 Load: 32.7 t ADT: 500

SSR 434

Fair

Over: BROOK

3.0 MI W OF ROUTE 82, Middlesex, CT

Built 1937 Load: 32.7 t ADT: 500

SSR 434

Fair

Over: MUDDY BROOK

2.8 MI W OF ROUTE 82, Middlesex, CT

Built 1937 Load: 32.7 t ADT: 700

ROUTE 3

Fair

Over: P & W RAILROAD

0.2 MI N OF ROUTE 66, Middlesex, CT

Built 1974 Load: 32.7 t ADT: 13,500

DEPOT ROAD

Fair

Over: PONSET BROOK

0.1 MI FROM RT 154, Middlesex, CT

Built 1983 Load: 32.7 t ADT: 408

SCOVIL ROAD

Fair

Over: CANDLEWOOD HILL BROOK

AT JCT OF CANDLEHILL ROAD, Middlesex, CT

Built 1983 Load: 32.7 t ADT: 463

ROUTE 148

Fair

Over: PATTACONK BROOK

0.3 MI E OF ROUTE 9, Middlesex, CT

Built 1984 Load: 32.7 t ADT: 3,600

ROUTE 148

Fair

Over: PATTACONK BROOK

0.6 MI E OF ROUTE 9, Middlesex, CT

Built 1984 Load: 32.7 t ADT: 3,600

CHENEY STREET

Fair

Over: BROOK

0.1 MI W OF MAIN ST, Middlesex, CT

Built 1983 Load: 32.7 t ADT: 127

ROUTE 196

Fair

Over: POCOTOPAUG CREEK

0.64 MILES SOUTH OF RT-66, Middlesex, CT

Built 1913 Load: 32.7 t ADT: 3,100

BEAVER MEADOW ROAD

Fair

Over: BEAVER MEADOW BROOK

0.2 MI WEST OF ROUTE 9, Middlesex, CT

Built 1983 Load: 32.7 t ADT: 1,000

ROUTE 145

Fair

Over: MENUNKETESUCK RIVER

0.6 MI S OF I-95, Middlesex, CT

Built 1988 Load: 32.7 t ADT: 7,700

CHESTNUT HILL ROAD

Fair

Over: PINE BROOK

0.1 MI S OF ROUTE 16, Middlesex, CT

Built 1987 Load: 32.7 t ADT: 280

Related

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