New Haven County, CT

891 public highway bridges

New Haven County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, New Haven County, Connecticut contains 891 public highway bridges. Roughly 25.7% are rated “Good,” 45.2% “Fair,” and 2.6% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

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

891

Total Bridges

25.7%

Good

45.2%

Fair

2.6%

Poor Condition

Condition Distribution

Good

25.7% (229)

Fair

45.2% (403)

Poor

2.6% (23)

All Bridges (891)

Sort:

I-91 NB & RAMP 136

Over: EAST STREET

1.2 MI N OF I-95, New Haven, CT

Built 1965 Load: 36.0 t ADT: 78,800

ROUTE 8 NORTHBOUND

Over: METRO-NORTH RAILROAD

.7 MI NO NUGTCK WTBRY TL, New Haven, CT

Built 1966 Load: 36.0 t ADT: 26,900

INDIAN NECK AVENUE

Over: BRANFORD RIVER

.5 MI NORTH OF ROUTE 146, New Haven, CT

Built 1991 Load: 36.3 t ADT: 3,860

HELLSTROM ROAD

Over: FARM RIVER

750 FT E. OF ROUTE 100, New Haven, CT

Built 1980 Load: 36.4 t ADT: 986

INTERSTATE 84 EB

Over: PETER ROAD

.9 MILE EAST OF ROUTE 172, New Haven, CT

Built 1963 Load: 36.6 t ADT: 36,400

I-84 TR 812

Over: RIVERSIDE ST,NAUGATUCK R

EXIT 19, 84 WB TO 8 SB, New Haven, CT

Built 1966 Load: 36.6 t ADT: 11,700

ROUTE 40 SB

Over: SOUTH NEW ROAD

0.2 MI S OF ROUTE 10, New Haven, CT

Built 1976 Load: 36.6 t ADT: 11,700

NAUGATUCK AVENUE

Over: METRO NORTH RAILROAD

0.2 MILE NORTH OF I95, New Haven, CT

Built 1913 Load: 36.8 t ADT: 3,790

ROUTE 8 NORTHBOUND

Over: NAUGATUCK RV-LOCAL ROADS

.27 MI NORTH OF TOWN LINE, New Haven, CT

Built 1966 Load: 36.9 t ADT: 27,300

ROUTE 68

Over: P&W RR

1.6 MI E OF I-91, New Haven, CT

Built 1967 Load: 37.0 t ADT: 13,200

MAPLE STREET

Over: NAUGATUCK RIVER

OFF EXIT 27 ROUTE 8 SB, New Haven, CT

Built 1912 Load: 37.2 t ADT: 13,000

COLLEGE STREET

Over: SOUTH SERVICE DRIVE

COLLEGE ST O S SERV DR, New Haven, CT

Built 2015 Load: 37.3 t ADT: 13,587

ROUTE 80

Over: HAMMONASSET RIVER

1.4 MI E OF ROUTE 79, New Haven, CT

Built 1934 Load: 37.6 t ADT: 4,600

SR 847 (THOMASTON

Over: NAUGATUCK RAILROAD

.6 MI NORTH OF W. MAIN ST, New Haven, CT

Built 1981 Load: 37.6 t ADT: 8,000

INTERSTATE-691 WB

Over: KNOTTER DRIVE

1.1 MI W OF ROUTE 10, New Haven, CT

Built 1986 Load: 37.6 t ADT: 28,500

INTERSTATE-91 NB

Over: AMTRAK RAILROAD

.65 MI N OF ROUTE 22, New Haven, CT

Built 1965 Load: 37.9 t ADT: 43,200

CEDAR STREET NO. 1

Over: METRO NORTH RAILROAD

0.3 MI S OF US ROUTE 1, New Haven, CT

Built 1906 Load: 37.9 t ADT: 3,092

SPRING STREET

Over: WEST RIVER

0.1 MI WEST OF RTE 10, New Haven, CT

Built 1999 Load: 38.1 t ADT: 5,100

INTERSTATE 84 EB

Over: SANDY HILL ROAD

0.6 MI E OF SOUTH ST BR, New Haven, CT

Built 1964 Load: 38.2 t ADT: 36,900

SR 723

Over: FULLING MILL BROOK

150 FT SOUTH OF ROUTE 68, New Haven, CT

Built 1959 Load: 38.2 t ADT: 10,400

ROUTE 68

Over: QUINNIPIAC RIVER

150' EAST OF ROUTE 150, New Haven, CT

Built 1965 Load: 38.2 t ADT: 20,900

INTERSTATE 84 WB

Over: BIOSKI ROAD

1.6 MI WEST OF ROUTE 63, New Haven, CT

Built 1964 Load: 38.6 t ADT: 36,800

ROUTE 67

Over: LITTLE RIVER

1.0 MI E OF ROUTE 42, New Haven, CT

Built 1933 Load: 38.8 t ADT: 13,700

US ROUTE 1

Over: HAMMONASSET RIVER

Madison\Clinton Townline, New Haven, CT

Built 1961 Load: 38.9 t ADT: 8,000

ROUTE 313

Over: NAUGATUCK RIVER

450 FEET EAST OF ROUTE 8, New Haven, CT

Built 1958 Load: 38.9 t ADT: 9,900

ROUTE 8 SOUTHBOUND

Over: STEELE BROOK

1.2 MILES NORTH OF I-84, New Haven, CT

Built 1965 Load: 38.9 t ADT: 25,900

ROUTE 8 NORTHBOUND

Over: BANK & S.LEONARD STREETS

.6 MI SOUTH OF INTERST 84, New Haven, CT

Built 1966 Load: 38.9 t ADT: 25,300

COURT STREET

Over: METRO NORTH RAILROAD

1 TENTH EAST OF STATE ST, New Haven, CT

Built 1907 Load: 38.9 t ADT: 408

FERRY STREET

Over: AMTRAK RAILROAD

0.03 MI E OF JCT RTE 5, New Haven, CT

Built 1912 Load: 38.9 t ADT: 13,600

ROUTE 67

Over: NAUGATUCK RIVER

JUST WEST OF ROUTE 313, New Haven, CT

Built 1936 Load: 39.0 t ADT: 15,600

WHITFIELD STREET

Over: SLUICE CREEK

1 MILE SOUTH OF RTE 146, New Haven, CT

Built 1999 Load: 39.1 t ADT: 1,872

INTERSTATE 84 EB

Over: LONG MEADOW ROAD

1.3 MI E MDBRY-SOBRY TL, New Haven, CT

Built 1964 Load: 39.2 t ADT: 36,900

INTERSTATE-691 EB

Over: NOTCH ROAD

0.8 M E OF SOUTHINGTON, New Haven, CT

Built 1971 Load: 39.2 t ADT: 35,000

OLD GRASSY HILL RD

Over: WEPAWAUG RIVER

0.1 MI E OF ROUTE 121, New Haven, CT

Built 1941 Load: 39.2 t ADT: 6,400

ROUTE 10

Over: WILLOW BROOK

3.4 MI N OF ROUTE 40, New Haven, CT

Built 1991 Load: 39.2 t ADT: 15,300

SR 796 WESTBOUND

Over: WELLINGTON ROAD EXT.

2.5 MI N OF US ROUTE 1, New Haven, CT

Built 1992 Load: 39.2 t ADT: 5,800

INTERSTATE-95

Over: METRO NORTH RAILROAD

0.1 M S OF EX 35, I-95, New Haven, CT

Built 1957 Load: 39.5 t ADT: 95,100

I-91 132,134,136

Over: STATE STREET

0.1 MI E OF ORANGE STREET, New Haven, CT

Built 1965 Load: 39.5 t ADT: 20,800

OLD STATE ROAD #3

Over: LITTLE RIVER

100' EAST OF JCT RT 67&42, New Haven, CT

Built 2001 Load: 39.5 t ADT: 407

CHAPEL STREET

Over: MILL RIVER

500' EAST OF EAST STREET, New Haven, CT

Built 1992 Load: 39.5 t ADT: 7,794

WESTFIELD ROAD

Over: HARBOR BROOK

0.3 MI E OF US ROUTE 5, New Haven, CT

Built 1938 Load: 39.8 t ADT: 2,700

INTERSTATE 84 WB

Over: LONG MEADOW ROAD

1.3 MI E MDBY-SOBRY TL, New Haven, CT

Built 1964 Load: 39.9 t ADT: 36,800

KIRKHAM STREET

Over: AMTRAK RAILROAD

0.5 MI S. OF ROUTE 146, New Haven, CT

Built 1892 Load: 40.0 t ADT: 5,000

ROUTE 243

Over: RACE BROOK

0.6 MILE WEST ROUTE 313, New Haven, CT

Built 1996 Load: 40.2 t ADT: 3,100

ROUTE 8 SOUTHBOUND

Over: METRO NORTH RAILROAD

.7 MI N OF NAUG./WTBY TL, New Haven, CT

Built 1966 Load: 40.2 t ADT: 25,800

INTERSTATE-91 NB

Over: CSX RAILROAD

2.3 MI N OF ROUTE 17, New Haven, CT

Built 1965 Load: 40.3 t ADT: 58,600

ROUTE 68

Over: HOP BROOK

AT JUNCTION WITH ROUTE 63, New Haven, CT

Built 1933 Load: 40.4 t ADT: 10,800

ROUTE 103

Over: MUDDY RIVER

1.2 MI N0 MONTOWESE AVE, New Haven, CT

Built 1961 Load: 40.5 t ADT: 7,700

ROUTE 8 NORTHBOUND

Over: NICHOLS DRIVE

1.3 MILE NORTH OF EXIT 29, New Haven, CT

Built 1965 Load: 40.5 t ADT: 27,000

WASHINGTON AVE #3

Over: NAUGATUCK RIVER

0.2 MI E OF RT 8 SB EX.30, New Haven, CT

Built 1956 Load: 40.5 t ADT: 6,000

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

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