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)

ROUTE 17

Fair

Over: LITTLE RIVER

200 FT EAST OF I-91, New Haven, CT

Built 1965 Load: 46.0 t ADT: 23,100

ROUTE 8 NORTHBOUND

Fair

Over: WASHINGTON AVENUE

.7 MI SOUTH OF I-84, New Haven, CT

Built 1965 Load: 46.0 t ADT: 25,400

ROUTE 63

Fair

Over: HOP BROOK

1 MI SOUTH OF RT 84, New Haven, CT

Built 1966 Load: 46.0 t ADT: 13,300

ROUTE 68

Fair

Over: FULLING MILL BROOK

1.0 MI E OF ROUTE 63, New Haven, CT

Built 1933 Load: 46.2 t ADT: 12,300

ROUTE 8 NORTHBOUND

Fair

Over: STEELE BROOK

1 MILE SOUTH OF EXIT 36, New Haven, CT

Built 1965 Load: 46.3 t ADT: 26,300

BRISTOL STREET #1

Fair

Over: NAUGATUCK RIVER

OFF PLATTS MILL ROAD, New Haven, CT

Built 1956 Load: 46.3 t ADT: 2,100

ROUTE 40 NB

Fair

Over: SOUTH NEW ROAD

0.2 MI S OF ROUTE 10, New Haven, CT

Built 1976 Load: 46.3 t ADT: 11,300

GRAND AVENUE

Fair

Over: MILL RIVER EAST

.2 MI EAST OF EAST STREET, New Haven, CT

Built 1982 Load: 46.5 t ADT: 14,400

UNIVERSAL DR NORTH

Fair

Over: CSX RAILROAD

0.2 MI. N Montowese Ave., New Haven, CT

Built 1983 Load: 47.0 t ADT: 671

GRAND AVENUE

Fair

Over: MILL RIVER WEST

1 TENTH EAST OF EAST ST, New Haven, CT

Built 1982 Load: 47.1 t ADT: 14,400

INTERSTATE-91 NB

Fair

Over: MUDDY RIVER

.8 MI SO OF ROUTE 40, New Haven, CT

Built 1965 Load: 47.2 t ADT: 55,750

PEARL STREET

Fair

Over: BLADENS RIVER

0.1 MI SOUTH OF ROUTE 67, New Haven, CT

Built 1924 Load: 47.4 t ADT: 2,333

ROUTE 172

Fair

Over: TRANSYLVANIA BROOK

1 MI SOUTH OF JCT RTE 67, New Haven, CT

Built 1935 Load: 47.6 t ADT: 3,900

INTERSTATE-91 SB

Fair

Over: SACKETT POINT ROAD

0.7 MI S OF ROUTE 40, New Haven, CT

Built 1965 Load: 47.6 t ADT: 54,700

ROUTE 67

Fair

Over: LITTLE RIVER

JUNCTION ROUTE 42 AND 67, New Haven, CT

Built 1933 Load: 47.8 t ADT: 13,900

ROUTE 8

Fair

Over: FULLING MILL BROOK

0.9 MILE SO. WATERBURY TL, New Haven, CT

Built 1960 Load: 48.0 t ADT: 51,400

ROUTE 15

Fair

Over: CIRCULAR AVENUE

O/CIRCULAR AVENUE, New Haven, CT

Built 1948 Load: 48.0 t ADT: 77,800

EAST AURORA STREET

Fair

Over: STEELE BROOK

150 FT NORTH OF ROUTE 73, New Haven, CT

Built 1963 Load: 48.0 t ADT: 8,300

ROUTE 150

Fair

Over: QUINNIPIAC RIVER

AT JCT RTE 68 & RTE 150, New Haven, CT

Built 1951 Load: 48.3 t ADT: 13,800

CHESHIRE STREET

Fair

Over: QUINNIPIAC RIVER

0.3 MI N OF ROUTE 70, New Haven, CT

Built 1957 Load: 48.3 t ADT: 3,962

RIVER ROAD

Fair

Over: POMPERAUG RIVER

NEAR I-84 EXIT 13, New Haven, CT

Built 1962 Load: 48.6 t ADT: 2,000

HANOVER STREET

Fair

Over: HARBOR BROOK

660 FT E OF COE AVE, New Haven, CT

Built 1930 Load: 48.6 t ADT: 6,700

ROUTE 8 NORTHBOUND

Fair

Over: FIFTH STREET

0.9 MILES SOUTH OF I-84, New Haven, CT

Built 1965 Load: 48.9 t ADT: 25,400

HOWARD AVENUE

Fair

Over: METRO NORTH RAILROAD

1.0 MILE NORTH OF I 95, New Haven, CT

Built 1920 Load: 48.9 t ADT: 7,100

ROUTE 34

Fair

Over: EIGHT MILE BROOK

2 MILES WEST OF RTE 188, New Haven, CT

Built 1924 Load: 49.0 t ADT: 9,800

FALLS AVENUE

Fair

Over: STEELE BROOK

200' NORTH OF ROUTE 73, New Haven, CT

Built 1940 Load: 49.0 t ADT: 4,300

PORTER AVENUE

Fair

Over: HOP BROOK

.1 MI EAST OF ROUTE 63, New Haven, CT

Built 1940 Load: 49.3 t ADT: 5,900

ROUTE 162

Fair

Over: INDIAN RIVER

2.4 MI E OF US ROUTE 1, New Haven, CT

Built 1988 Load: 49.6 t ADT: 13,200

PLEASANT POINT RD

Fair

Over: AMTRAK RAILROAD

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

Built 1988 Load: 49.6 t ADT: 132

INTERSTATE-691 WB

Fair

Over: LEWIS AVE

AT EXIT 6, New Haven, CT

Built 1971 Load: 50.1 t ADT: 35,300

INTERSTATE-95

Fair

Over: BRANFORD STEAM RAILROAD

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

Built 1958 Load: 50.2 t ADT: 65,200

EAST STREET

Fair

Over: AMTRAK RAILROAD

.1MI SOUTH OF HUMPHREY ST, New Haven, CT

Built 1906 Load: 50.2 t ADT: 5,300

LOUGHLIN ROAD

Fair

Over: EIGHT MILE BROOK

0.4 MI N OF ROUTE 34, New Haven, CT

Built 1956 Load: 50.2 t ADT: 1,080

INTERSTATE-95

Fair

Over: EAST TOWN ROAD

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

Built 1958 Load: 50.4 t ADT: 99,700

ROUTE 8 NORTHBOUND

Fair

Over: HUNTINGDON AVENUE

.4MI S OF WTRBY WTRTWN TL, New Haven, CT

Built 1964 Load: 50.5 t ADT: 17,900

INTERSTATE 691 EAS

Fair

Over: BEE STREET

0.2 MI WEST OF I-91, New Haven, CT

Built 1965 Load: 50.5 t ADT: 22,500

AUGUR ROAD

Fair

Over: FARM RIVER

200 FT W OF ROUTE 22, New Haven, CT

Built 1933 Load: 50.5 t ADT: 2,300

ROUTE 8 NORTHBOUND

Fair

Over: PAN AM SO. RR SPUR LINE

0.2 MI N OF ROUTE 73, New Haven, CT

Built 1964 Load: 50.7 t ADT: 26,300

ROUTE 8 NORTHBOUND

Fair

Over: PORTER STREET

1 MI SOUTH OF I-84 INTER., New Haven, CT

Built 1965 Load: 50.8 t ADT: 25,500

RTE 103(MAPLE AVE)

Fair

Over: CSX RAILROAD

2.0 MI S OF ROUTE 22, New Haven, CT

Built 1961 Load: 51.1 t ADT: 7,500

BLAKE STREET

Fair

Over: TOWN FARM BROOK

150' W. OF FARNHAM AVENUE, New Haven, CT

Built 1939 Load: 51.1 t ADT: 7,000

I-84 RAMP 198

Fair

Over: NO NOTABLE FEATURE

WESTBOUND ON RAMP BANK ST, New Haven, CT

Built 1967 Load: 51.2 t ADT: 4,600

PLEASANT POINT RD

Fair

Over: ABANDONED TROLLEY LINE

1 MI SOUTH OF ROUTE 146, New Haven, CT

Built 1989 Load: 51.2 t ADT: 114

NICHOLS ROAD

Fair

Over: MAD RIVER

0.6 MI E OF ROUTE 69, New Haven, CT

Built 1935 Load: 51.4 t ADT: 3,340

ROUTE 8

Fair

Over: HOUSATONIC RAILROAD

AT EXIT 15, New Haven, CT

Built 1950 Load: 51.8 t ADT: 73,500

INTERSTATE-91 NB

Fair

Over: BALDWIN AVENUE

.75 MI NO I-691 & RTE 66, New Haven, CT

Built 1964 Load: 51.8 t ADT: 54,500

MATHER STREET

Fair

Over: FARMINGTON CANAL GREENWA

0.1 MI E OF ROUTE 10, New Haven, CT

Built 1942 Load: 51.8 t ADT: 4,800

INTERSTATE-95

Fair

Over: ORANGE AVENUE

0.3 MI N OF ROUTE 121, New Haven, CT

Built 1958 Load: 52.2 t ADT: 113,500

ROUTE 15

Fair

Over: GILBERT AVE

1.2 MILE WEST OF ROUTE 10, New Haven, CT

Built 1949 Load: 52.2 t ADT: 77,800

HICKS AVENUE

Fair

Over: AMTRAK RAILROAD

.2 MILE W OF N COLONY ST, New Haven, CT

Built 1988 Load: 52.2 t ADT: 1,600

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

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.