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)

FERRY STREET

Fair

Over: QUINNIPIAC RIVER

1.2 MI SOUTH JCT I-91 NB, New Haven, CT

Built 1940 Load: 24.0 t ADT: 5,500

ROUTE 67

Fair

Over: LITTLE RIVER

0.3 MI WEST OF ROUTE 8, New Haven, CT

Built 1950 Load: 24.3 t ADT: 17,200

OREGON ROAD

Fair

Over: QUINNIPIAC RIVER

ADJACENT TO ROUTE 70, New Haven, CT

Built 1963 Load: 24.3 t ADT: 5,700

SR 727

Fair

Over: NAUGATUCK RIVER & MNRR

0.2 MI W OF RT 115, New Haven, CT

Built 1960 Load: 24.9 t ADT: 7,800

BANK STREET

Fair

Over: NAUGATUCK RIVER

200 FT SOUTH W.LIBERTY ST, New Haven, CT

Built 1956 Load: 24.9 t ADT: 7,800

TWIN BRIDGE ROAD

Fair

Over: IRON STREAM

1.0 MI S OF ROUTE 80, New Haven, CT

Built 1900 Load: 25.3 t ADT: 258

ROUTE 8 SOUTHBOUND

Fair

Over: PAN AM SO. RR SPUR LINE

BETWEEN EXITS 35 & 36, New Haven, CT

Built 1964 Load: 25.6 t ADT: 27,050

CHAPEL STREET

Fair

Over: METRO NORTH

100 FT EAST OF STATE ST., New Haven, CT

Built 1994 Load: 25.9 t ADT: 7,700

ROUTE 80

Fair

Over: WEST RIVER

265 FT W OF ROUTE 77, New Haven, CT

Built 1934 Load: 26.6 t ADT: 7,100

INTERSTATE 84 WB

Fair

Over: PETER ROAD

.9 MI E OF ROUTE 172, New Haven, CT

Built 1963 Load: 26.6 t ADT: 36,100

FAIR STREET

Fair

Over: METRO NORTH RAILROAD

275 FT E. OF STATE STREET, New Haven, CT

Built 1998 Load: 26.6 t ADT: 2,200

FROST ROAD

Fair

Over: MAD RIVER

0.2 MILE EAST OF ROUTE 69, New Haven, CT

Built 1965 Load: 26.6 t ADT: 11,000

ROUTE 67

Fair

Over: EIGHT MILE BROOK

OXFORD-SOUTHBURY T.L., New Haven, CT

Built 1934 Load: 26.9 t ADT: 11,800

GRAND AVENUE

Fair

Over: QUINNIPIAC RIVER

100' E OF FRONT STREET, New Haven, CT

Built 1900 Load: 27.2 t ADT: 2,400

MULBERRY POINT RD

Fair

Over: AMTRAK RAILROAD

100 FT S OF ROUTE 146, New Haven, CT

Built 1988 Load: 27.2 t ADT: 2,930

INTERSTATE-691

Fair

Over: COLONY STREET

0.6 MI WEST OF ROUTE 5, New Haven, CT

Built 1971 Load: 27.9 t ADT: 72,400

RIVER ROAD #2

Fair

Over: MILL RIVER

0.4 MI E OF ROUTE 10, New Haven, CT

Built 1939 Load: 27.9 t ADT: 717

INTERSTATE-691 EB

Fair

Over: TEN MILE RIVER

7.5 MI W OF INTERSTATE-91, New Haven, CT

Built 1986 Load: 27.9 t ADT: 28,500

ROUTE 188

Fair

Over: LONG SWAMP BROOK

0.4 MI S OF I-84, New Haven, CT

Built 1944 Load: 28.0 t ADT: 3,200

ROUTE 79

Fair

Over: AMTRAK RAILROAD

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

Built 1957 Load: 28.2 t ADT: 13,400

US ROUTE 1 & PW RR

Fair

Over: QUINNIPIAC RIVER

0.2 MI S OF I-95 Q-BRIDGE, New Haven, CT

Built 2002 Load: 28.5 t ADT: 12,400

ROUTE 64

Fair

Over: HOP BROOK

1.5 MI E OF ROUTE 188, New Haven, CT

Built 1928 Load: 28.5 t ADT: 10,000

INTERSTATE 84 WB

Fair

Over: SANDY HILL ROAD

2.0 MI W OF RT 63, New Haven, CT

Built 1964 Load: 28.5 t ADT: 36,800

HAMDEN HILLS DRIVE

Fair

Over: SHEPARD BROOK & RR TRAIL

300 FT W OF GLEN RIDGE RD, New Haven, CT

Built 1991 Load: 28.5 t ADT: 5,690

INTERSTATE-84 WB

Fair

Over: SHADDUCK ROAD

0.4 MI W OF ROUTE 188, New Haven, CT

Built 1964 Load: 28.8 t ADT: 35,300

INTERSTATE-691

Fair

Over: CENTER STREET

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

Built 1971 Load: 28.8 t ADT: 75,500

HERITAGE ROAD

Fair

Over: POMPERAUG RIVER

.5 MI WEST OF ROUTE 6, New Haven, CT

Built 1971 Load: 28.8 t ADT: 4,300

INTERSTATE-691 WB

Fair

Over: TEN MILE RIVER

7.5 MI W OF INTERSTATE-91, New Haven, CT

Built 1986 Load: 28.8 t ADT: 28,500

ROUTE 67

Fair

Over: LITTLE RIVER

1.3 MI WEST OF ROUTE 8, New Haven, CT

Built 1926 Load: 28.8 t ADT: 14,600

ROUTE 8 SOUTHBOUND

Fair

Over: PORTER STREET

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

Built 1965 Load: 29.2 t ADT: 25,600

ROUTE 322

Fair

Over: MAD RIVER

105 FT E. OF ROUTE 69, New Haven, CT

Built 1997 Load: 29.5 t ADT: 6,600

ROUTE 8 SOUTHBOUND

Fair

Over: FIFTH STREET

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

Built 1965 Load: 29.5 t ADT: 25,600

FLOOD BRIDGE ROAD

Fair

Over: POMPERAUG RIVER

1/4 MI WEST OF SO MAIN ST, New Haven, CT

Built 1979 Load: 29.5 t ADT: 432

ANDREW AVENUE

Fair

Over: LONG MEADOW POND BROOK

200 FT SO JCT RUBBER AVE, New Haven, CT

Built 1931 Load: 29.5 t ADT: 1,000

US ROUTE 1

Fair

Over: EAST RIVER

0.5 MI E OF ROUTE 146, New Haven, CT

Built 1971 Load: 29.8 t ADT: 12,500

INTERSTATE-95

Fair

Over: GRETA STREET

0.2 MI N OF ROUTE 162, New Haven, CT

Built 1957 Load: 30.1 t ADT: 114,100

INTERSTATE 95

Fair

Over: LAKE SALTONSTALL

0.5 MI N OF ROUTE 100, New Haven, CT

Built 1998 Load: 30.1 t ADT: 84,500

ROUTE 15

Fair

Over: CONNOLLY PKWY

0.2 MI N OF ROUTE 10, New Haven, CT

Built 1948 Load: 30.5 t ADT: 69,700

WALLACE STREET

Fair

Over: AMTRAK RAILROAD

.2 MI NORTH GRAND AVENUE, New Haven, CT

Built 1906 Load: 30.5 t ADT: 2,242

OAK STREET NO. 2

Fair

Over: QUINNIPIAC RIVER

0.1 MI W OF ROUTE 71, New Haven, CT

Built 1989 Load: 30.5 t ADT: 2,596

ROUTE 8

Fair

Over: HULL STREET

2.4 MI NORTH OF ROUTE 34, New Haven, CT

Built 1956 Load: 30.8 t ADT: 63,800

ROUTE 73

Fair

Over: STEELE BROOK

250' EAST OF WATERTOWN TL, New Haven, CT

Built 1914 Load: 30.8 t ADT: 11,300

SR 717

Fair

Over: MILL RIVER

0.3 MI E OF ROUTE 10, New Haven, CT

Built 1948 Load: 30.8 t ADT: 18,600

INTERSTATE-691 EB

Fair

Over: RESERVOIR AVE & STREAM

0.6 MI E OF I 691 EXIT 4, New Haven, CT

Built 1970 Load: 30.8 t ADT: 34,800

RIVER STREET

Fair

Over: WEPAWAUG RIVER

0.2 MI E OF ROUTE 162, New Haven, CT

Built 1934 Load: 30.8 t ADT: 15,210

LANE STREET

Fair

Over: WILMOT BROOK

100 FT N OF ROUTE 15, New Haven, CT

Built 1949 Load: 30.8 t ADT: 4,200

CHATFIELD STREET

Fair

Over: BLADENS RIVER

0.1 MI N OF ROUTE 67, New Haven, CT

Built 1989 Load: 30.8 t ADT: 354

I-91 NB RAMP 140

Fair

Over: MILL RIVER

RAMP FROM WILLOW ST TO 91, New Haven, CT

Built 1965 Load: 31.1 t ADT: 4,000

DEPOT STREET

Fair

Over: NAUGATUCK RIVER

OFF NORTH MAIN STREET, New Haven, CT

Built 1935 Load: 31.3 t ADT: 1,500

SR 853

Fair

Over: NAUGATUCK RIVER,S DIV ST

0.1 MI W OF ROUTE 115, New Haven, CT

Built 2004 Load: 31.4 t ADT: 14,700
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.