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)

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

Related

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