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)

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.

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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.