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)

I-84 EB EXIT 25 OF

Good

Over: MAD RIVER

1600'+/- EAST OF ROUTE 69, New Haven, CT

Built 2018 Load: 50.5 t ADT: 5,500

PERRY MERRILL DRIV

Good

Over: STREAM

0.25 mi. west of Tyrol La, New Haven, CT

Built 2010 Load: 50.5 t ADT: 505

RIVER ROAD

Good

Over: FARM RIVER

0.2 MI S OF ROUTE 80, New Haven, CT

Built 2002 Load: 50.8 t ADT: 1,076

BRISTOL TOWN ROAD

Good

Over: EIGHT MILE BROOK

300' EAST FROM ROUTE 188, New Haven, CT

Built 1950 Load: 50.8 t ADT: 270

BRADLEY AVENUE

Good

Over: HARBOR BROOK

200 FT N OF COE AVENUE, New Haven, CT

Built 2006 Load: 50.9 t ADT: 7,100

I-95 SB & RAMP 347

Good

Over: FULTON TERRACE

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

Built 2006 Load: 51.2 t ADT: 44,700

I-84 EASTBOUND

Good

Over: MAD RIVER

250' W OF HARPERS FERRY, New Haven, CT

Built 2018 Load: 51.5 t ADT: 44,000

I-84 WESTBOUND

Good

Over: MAD RIVER

250' W OF HARPERS FERRY, New Haven, CT

Built 2018 Load: 51.5 t ADT: 42,700

W JOHNSON AVENUE

Good

Over: TEN MILE RIVER

0.5 MI W OF ROUTE 10, New Haven, CT

Built 1987 Load: 52.2 t ADT: 3,911

ROUTE 146

Good

Over: BRANFORD RIVER

1.5 MI E. OF US ROUTE 1, New Haven, CT

Built 1996 Load: 53.5 t ADT: 5,900

STATE STREET

Good

Over: MILL RIVER

1TENTH EAST OF MILL RV ST, New Haven, CT

Built 2016 Load: 53.5 t ADT: 7,200

SR 710

Good

Over: FULLING MILL BROOK

0.04 MI SO. OF EXIT 28 SB, New Haven, CT

Built 1998 Load: 53.8 t ADT: 3,500

BARRY ROAD

Good

Over: EIGHT MILE BROOK

0.5 MI W OF ROUTE 188, New Haven, CT

Built 2002 Load: 54.3 t ADT: 240

US ROUTE 1

Good

Over: WEPAWAUG RIVER

425 FT S OF ROUTE 121, New Haven, CT

Built 2016 Load: 54.4 t ADT: 21,200

RUBBER AVENUE

Good

Over: LONG MEADOW POND BROOK

JCT HOADLEY ST &RUBBER AV, New Haven, CT

Built 1983 Load: 54.4 t ADT: 10,900

ROUTE 8

Good

Over: CROSS ROAD

AT EXIT 25, New Haven, CT

Built 1981 Load: 55.3 t ADT: 47,600

ROUTE 69

Good

Over: MAD RIVER

SOUTH ENT.BRASS CITY MALL, New Haven, CT

Built 1997 Load: 55.3 t ADT: 19,400

INTERSTATE-95

Good

Over: WOODMONT ROAD NO. 1

3.7 MI S OF ROUTE 162, New Haven, CT

Built 2003 Load: 55.4 t ADT: 92,200

ROUTE 139

Good

Over: BRANFORD RIVER

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

Built 2017 Load: 55.4 t ADT: 8,500

I-91 TR 807,SR 702

Good

Over: POND HILL ROAD

I-91 TR 805, New Haven, CT

Built 1965 Load: 56.1 t ADT: 8,300

MILL ROAD

Good

Over: FARM RIVER

0.8 MI W OF ROUTE 22, New Haven, CT

Built 1998 Load: 56.1 t ADT: 2,800

BOWMAN DRIVE

Good

Over: BEACON HILL BROOK

500' SO OF ROUTE 63 JCT, New Haven, CT

Built 1982 Load: 56.2 t ADT: 660

INTERSTATE-91 NB

Good

Over: POOL ROAD

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

Built 1965 Load: 56.4 t ADT: 78,500

US ROUTE 5

Good

Over: MEETING HOUSE BROOK

0.2 MI N OF ROUTE 15, New Haven, CT

Built 1989 Load: 56.5 t ADT: 26,400

COUNTY ROAD

Good

Over: HAMMONASSET RIVER

1.3 MI. EAST OF ROUTE 79, New Haven, CT

Built 2022 Load: 57.0 t ADT: 163

BIRCH ROAD

Good

Over: AMTRAK RAILROAD

0.4 MI N OF PINE ORCHARD, New Haven, CT

Built 1988 Load: 57.3 t ADT: 1,189

ROUTE 63

Good

Over: NAUGATUCK RV, MNRR & ELM

0.1 MI N OF RTE 8 EXIT 26, New Haven, CT

Built 2011 Load: 57.7 t ADT: 14,500

INTERSTATE 91 NB

Good

Over: CHAPEL STREET

0.1 M N OF I-95, New Haven, CT

Built 1965 Load: 58.0 t ADT: 72,800

INTERSTATE 91 SB

Good

Over: CHAPEL STREET

0.5 M N OF I-95, New Haven, CT

Built 1965 Load: 58.0 t ADT: 63,400

DEFCO PARK ROAD

Good

Over: AMTRAK RAILROAD

500' WEST OF ROUTE 5, New Haven, CT

Built 1961 Load: 58.7 t ADT: 4,480

RUBBER AVENUE EXT.

Good

Over: LONG MEADOW POND BROOK

OVER LONG MEADOW POND BRK, New Haven, CT

Built 1956 Load: 58.9 t ADT: 2,600

VELVET STREET

Good

Over: MUDDY RIVER

0.5 Mi. West of Rte 17, New Haven, CT

Built 1988 Load: 59.9 t ADT: 1,400

INTERSTATE-91 NB

Good

Over: STODDARD AVENUE

RTE5 TO BROADWY TO ELM ST, New Haven, CT

Built 1965 Load: 60.5 t ADT: 95,200

OLIVE STREET

Good

Over: AMTRAK RAILROAD

100' EAST OF STATE STREET, New Haven, CT

Built 1998 Load: 60.7 t ADT: 4,800

INTERSTATE-95

Good

Over: COPSE ROAD

0.5 MI SOUT OF ROUTE 79, New Haven, CT

Built 1957 Load: 61.2 t ADT: 57,100

MARION ROAD

Good

Over: TEN MILE RIVER

0.2 MI W OF ROUTE 70, New Haven, CT

Built 1991 Load: 61.8 t ADT: 668

BLATCHLEY AVENUE

Good

Over: AMTRAK RAILROAD

.1 MILES SOUTH ROUTE 5, New Haven, CT

Built 1989 Load: 62.0 t ADT: 3,770

SHERMAN AVENUE

Good

Over: FARMINGTON CANAL GREENWA

0.2 MI W OF ROUTE 10, New Haven, CT

Built 1980 Load: 62.2 t ADT: 8,400

SHARON ROAD

Good

Over: MAD RIVER

.3 MI EAST OF ROUTE 69, New Haven, CT

Built 1975 Load: 62.5 t ADT: 8,600

SR707/WHITNEY AVE

Good

Over: MILL RIVER

.1 MILE SOUTH OF ROUTE 15, New Haven, CT

Built 1991 Load: 62.6 t ADT: 12,500

CLARK STREET

Good

Over: METRO NORTH RAILROAD

0.1 MI N OF BRIDGEPORT AV, New Haven, CT

Built 2006 Load: 63.0 t ADT: 7,905

HATFIELD HILL ROAD

Good

Over: WEST RIVER

0.3 MI E OF ROUTE 69, New Haven, CT

Built 1999 Load: 63.8 t ADT: 462

ROUTE 15

Good

Over: TOELLES ROAD

.3 MILES WEST OF ROUTE 5, New Haven, CT

Built 1947 Load: 64.8 t ADT: 68,200

WALL STREET

Good

Over: WHARTON BROOK

0.1 MI E. OF S. ELM ST, New Haven, CT

Built 2006 Load: 65.0 t ADT: 425

EAST JOHNSON AVE

Good

Over: QUINNIPIAC RIVER

1.1 MI E OF ROUTE 10, New Haven, CT

Built 2016 Load: 65.8 t ADT: 4,700

FLAX MILL LANE

Good

Over: WEPAWAUG RIVER

660 FT W OF ROUTE 121, New Haven, CT

Built 2020 Load: 66.7 t ADT: 707

ROUTE 8

Good

Over: JACKSON STREET

2.0 MI N OF ROUTE 34, New Haven, CT

Built 1957 Load: 67.1 t ADT: 63,800

GRANDVIEW AVENUE

Good

Over: ROBBINS STREET

AT SW CORNER OF HOSPITAL, New Haven, CT

Built 1995 Load: 68.0 t ADT: 8,100

ARCH STREET

Good

Over: LONG MEADOW POND BROOK

AT JCT OF RUBBER AVE&ARCH, New Haven, CT

Built 1982 Load: 68.0 t ADT: 1,570

OLD ROUTE 63

Good

Over: HOP BROOK

8.05 KM W OF WATERBURY, New Haven, CT

Built 1935 Load: 68.0 t ADT: 30

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

Related

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