New Haven County, CT

891 public highway bridges

New Haven County Bridge Snapshot

New Haven County, Connecticut contains 891 public highway bridges in the FHWA National Bridge Inventory. Roughly 25.7% are rated “Good,” 45.2% “Fair,” 2.6% “Poor,” and 2.6% 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.

891

Total Bridges

25.7%

Good

2.6%

Poor

2.6%

Structurally Deficient

Condition Distribution

Good

25.7% (229)

Fair

45.2% (403)

Poor

2.6% (23)

SD

2.6% (23)

All Bridges (891)

Sort:

ROUTE 8

Over: METRO-NRTH RR&PRIVATE RD

.4 MILES NORTH OF EXIT 23, New Haven, CT

Built 1981 Load: 40.5 t ADT: 47,700

ROUTE 34

Over: NAUGATUCK RIVER

0.1 MI E OF ROUTE 8, New Haven, CT

Built 1959 Load: 40.8 t ADT: 33,800

ROUTE 8

Over: ABANDONED RAILROAD

0.4 MI N OF ROUTE 34, New Haven, CT

Built 1951 Load: 41.1 t ADT: 73,900

RACE HILL ROAD #1

Over: WEST RIVER

100 FT E OF ROUTE 77, New Haven, CT

Built 2002 Load: 41.1 t ADT: 379

PINE ORCHARD ROAD

Over: AMTRAK RAILROAD

0.6 MI N. OF ROUTE 146, New Haven, CT

Built 1988 Load: 41.1 t ADT: 1,000

INTERSTATE-95

Over: EAST RIVER

2.3 MI S OF ROUTE 79, New Haven, CT

Built 1957 Load: 41.5 t ADT: 54,500

INTERSTATE-91 NB

Over: AMTRAK RAILROAD

.11 MILES S OF ROUTE 22, New Haven, CT

Built 1965 Load: 41.5 t ADT: 43,200

WESTFIELD ROAD

Over: ABANDONED RAILROAD

210 FT E OF ROUTE 5, New Haven, CT

Built 1982 Load: 41.5 t ADT: 2,700

NICHOLS ROAD

Over: MAD RIVER

0.6 MI E OF ROUTE 69, New Haven, CT

Built 1935 Load: 41.7 t ADT: 3,340

ROUTE 313

Over: LITTLE RIVER

200 FEET EAST OF ROUTE 67, New Haven, CT

Built 1936 Load: 41.8 t ADT: 3,000

BLAKE STREET

Over: WEST RIVER

2 TENTHS EAST OF ROUTE 63, New Haven, CT

Built 1995 Load: 41.8 t ADT: 7,000

INTERSTATE-95

Over: RIVER RD &HAMMONASSET RV

2 MI N. OF ROUTE 79, New Haven, CT

Built 1957 Load: 42.1 t ADT: 52,200

I-84 RAMP 199

Over: MEADOW ST & MNRR ROADWAY

BANK ST TO I-84 WB, New Haven, CT

Built 1965 Load: 42.1 t ADT: 1,900

YORK STREET

Over: PARKING GARAGE

1 MILE WEST OF I-95, New Haven, CT

Built 1980 Load: 42.1 t ADT: 5,600

US ROUTE 1

Over: FARM RIVER

0.1 MI S OF ROUTE 142, New Haven, CT

Built 1938 Load: 42.4 t ADT: 25,500

ROUTE 34

Over: METRO NORTH RAILROAD

0.1 MI E OF ROUTE 8, New Haven, CT

Built 1951 Load: 42.4 t ADT: 42,300

ROUTE 69

Over: MAD RIVER

0.7 MI S OF ROUTE 322, New Haven, CT

Built 1935 Load: 42.4 t ADT: 10,400

ROUTE 67

Over: LITTLE RIVER

1.1 MI E OF ROUTE 42, New Haven, CT

Built 1933 Load: 42.6 t ADT: 13,700

INTERSTATE 95

Over: INDIAN RIVER

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

Built 1958 Load: 42.8 t ADT: 107,800

INTERSTATE-691 WB

Over: NOTCH ROAD

0.85 MI EAST OF RT 322, New Haven, CT

Built 1971 Load: 42.8 t ADT: 35,000

ROUTE 40 NB

Over: AMTRAK RAILROAD

0.1 MI S OF US ROUTE 5, New Haven, CT

Built 1971 Load: 42.8 t ADT: 22,000

ROUTE 67

Over: LITTLE RIVER

3.3 MILES WEST OF ROUTE 8, New Haven, CT

Built 1933 Load: 42.9 t ADT: 14,800

HORSEPOND ROAD

Over: AMTRAK RAILROAD

100 FT S OF NEW ROAD, New Haven, CT

Built 1998 Load: 43.0 t ADT: 3,100

ROUTE 22

Over: FARM RIVER

0.7 MI E OF ROUTE 17, New Haven, CT

Built 1935 Load: 43.1 t ADT: 12,200

I-91 RAMP 139

Over: NO NOTABLE FEATURE

I91SB ON RAMP (WILLOW ST), New Haven, CT

Built 1965 Load: 43.1 t ADT: 6,000

ROUTE 8 SOUTHBOUND

Over: NICHOLS DRIVE

1.1 MILE SOUTH OF EXIT 30, New Haven, CT

Built 1965 Load: 43.1 t ADT: 27,600

SOUTH LEONARD ST

Over: NAUGATUCK RIVER

0.1 MI WEST OF SO MAIN ST, New Haven, CT

Built 1956 Load: 43.1 t ADT: 950

ROUTE 162

Over: OYSTER RIVER

370 FT W OF SR 705, New Haven, CT

Built 1987 Load: 43.1 t ADT: 8,700

SR 724 EASTBOUND

Over: BREWERY STREET

250FT SOUTH OF US 1, New Haven, CT

Built 1960 Load: 43.4 t ADT: 47,375

INTERSTATE-91 SB

Over: CSX RAILROAD

2.3 MI N OF ROUTE 17, New Haven, CT

Built 1965 Load: 43.4 t ADT: 54,700

YORK STREET

Over: WEST RIVER

50 FT E OF US ROUTE 1, New Haven, CT

Built 1993 Load: 43.5 t ADT: 262

INTERSTATE-95

Over: SCHOOL HOUSE ROAD

INTERSTATE-95 EXIT NO. 35, New Haven, CT

Built 1957 Load: 43.7 t ADT: 89,900

SR 847

Over: HANCOCK BROOK

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

Built 1934 Load: 43.7 t ADT: 10,200

EDUCATIONAL WAY

Over: COVE RIVER

260 FT E OF SR 705, New Haven, CT

Built 1999 Load: 43.7 t ADT: 858

I-91 TR 808 & SR 7

Over: POND HILL ROAD

0.7 MI WEST OF I91, New Haven, CT

Built 1965 Load: 44.4 t ADT: 7,600

INTERSTATE-95

Over: EAST RIVER ROAD

2.1 MI NORTH OF ROUTE 77, New Haven, CT

Built 1957 Load: 44.7 t ADT: 54,500

CHURCH STREET

Over: CHURCH STREET TUNNEL

100' SOUTH OF GEORGE ST, New Haven, CT

Built 1963 Load: 44.7 t ADT: 15,300

INTERSTATE-95

Over: MILL PLAIN ROAD

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

Built 1958 Load: 45.0 t ADT: 70,500

GRAND AVENUE

Over: METRO NORTH RAILROAD

50' EAST OF STATE STREET, New Haven, CT

Built 1933 Load: 45.0 t ADT: 9,800

US ROUTE 5

Over: QUINNIPIAC RIVER

.2 MI S OF INTERSTATE-91, New Haven, CT

Built 1973 Load: 45.4 t ADT: 19,200

I-91 NB RAMP 138

Over: MILL RIVER

I-91 NB EXIT NO. 5, New Haven, CT

Built 1965 Load: 45.4 t ADT: 11,300

INTERSTATE-91 SB

Over: AMTRAK RAILROAD

.14 MILES S OF ROUTE 22, New Haven, CT

Built 1965 Load: 45.4 t ADT: 45,400

ROUTE 69

Over: STREAM

0.6 MI. SO. OF WOLCOTT TL, New Haven, CT

Built 1969 Load: 45.4 t ADT: 23,400

CAMP STREET #1

Over: HARBOR BROOK

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

Built 1895 Load: 45.4 t ADT: 2,870

LOPUS ROAD

Over: METRO-NORTH RAILROAD

.4 MILES S OF MAIN STREET, New Haven, CT

Built 1991 Load: 45.4 t ADT: 500

ROUTE 68

Over: FULLING MILL BROOK

1.3 MI E OF ROUTE 63, New Haven, CT

Built 1933 Load: 45.5 t ADT: 12,300

I-91 SB & RAMP C

Over: WILLOW STREET

330 FT W OF US RT 5, New Haven, CT

Built 1965 Load: 45.7 t ADT: 67,400

CHAPEL STREET

Over: PROV & WORC RAILROAD

100FT EAST OF EAST STREET, New Haven, CT

Built 1912 Load: 45.8 t ADT: 8,452

INTERSTATE-95

Over: IVY STREET

1.7 MI S. OF US ROUTE 1, New Haven, CT

Built 1958 Load: 46.0 t ADT: 70,500

ROUTE 8 SB

Over: NB ACC LOWER DERBY AVE

3.7 MI NORTH OF ROUTE 34, New Haven, CT

Built 1961 Load: 46.0 t ADT: 27,000

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

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

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026