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)

SCOUT ROAD

Good

Over: LEE BROOK

100 FT W OF LEE FARM DR, New Haven, CT

Built 1990 Load: 32.7 t ADT: 400

SOUTH CURTIS STREE

Good

Over: MEETINGHOUSE BROOK

660 FT S OF CURTIS STREET, New Haven, CT

Built 1989 Load: 32.7 t ADT: 2,700

LONG HILL ROAD

Good

Over: SPINNING MILL BROOK

.13 mi. north of Route 1, New Haven, CT

Built 2018 Load: 32.7 t ADT: 3,700

ROUTE 322

Good

Over: LINDSLEY BROOK

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

Built 2013 Load: 33.0 t ADT: 4,800

ROUTE 150

Good

Over: MUDDY RIVER

1.4 MI S OF I-91, New Haven, CT

Built 1938 Load: 33.4 t ADT: 4,300

INTERSTATE-84

Good

Over: BEAVER POND BROOK

0.3 MI W OF SCOTT ROAD, New Haven, CT

Built 1960 Load: 33.7 t ADT: 92,200

PLANK ROAD

Good

Over: MAD RIVER

100'W OF HARPERS FERRY RD, New Haven, CT

Built 2015 Load: 34.0 t ADT: 3,100

REEDS GAP ROAD

Good

Over: FARM RIVER

0.5 MI S OF ROUTE 17, New Haven, CT

Built 2010 Load: 34.0 t ADT: 300

MANSFIELD DRIVE

Good

Over: FARM RIVER

1/4 mi. east of Route 17, New Haven, CT

Built 2004 Load: 34.0 t ADT: 1,020

GULF STREET

Good

Over: GULF POND

0.8 MI S OF ROUTE 162, New Haven, CT

Built 2006 Load: 34.2 t ADT: 5,182

ROUTE 15

Good

Over: MILL RIVER

0.1 MI N OF SR 717, New Haven, CT

Built 1943 Load: 34.7 t ADT: 72,300

INTERSTATE-95

Good

Over: NECK RIVER

0.9 MI S OF ROUTE 79, New Haven, CT

Built 1957 Load: 35.0 t ADT: 72,100

WILLOW ROAD

Good

Over: FARM RIVER

0.1 MI EAST OF RTE #100, New Haven, CT

Built 1980 Load: 35.0 t ADT: 828

SCHOOL GROUND ROAD

Good

Over: NOTCH HILL BROOK

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

Built 1941 Load: 35.6 t ADT: 5,500

ROUTE 15

Good

Over: LANE STREET

1.2 MILE WEST OF ROUTE 10, New Haven, CT

Built 1949 Load: 36.0 t ADT: 79,800

INTERSTATE-95

Good

Over: NAUGATUCK AVENUE

ABUTS N END OF 00135, New Haven, CT

Built 2016 Load: 36.0 t ADT: 88,400

ROUTE 17

Good

Over: PISTIPAUG POND BROOK

2.4 MI N. OF ROUTE 22, New Haven, CT

Built 2007 Load: 36.3 t ADT: 8,700

ROUTE 40 SB

Good

Over: HARTFORD TURNPIKE

AT EXIT 1 RTE 40, New Haven, CT

Built 1976 Load: 36.3 t ADT: 10,300

WESTFIELD ROAD

Good

Over: HARBOR BROOK

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

Built 1999 Load: 36.5 t ADT: 2,600

PECK LANE

Good

Over: TEN MILE RIVER

0.5 MI S OF I-691, New Haven, CT

Built 1996 Load: 36.6 t ADT: 2,769

ROUTE 243

Good

Over: WEPAWAUG RIVER

0.3 MI W OF ROUTE 114, New Haven, CT

Built 1993 Load: 37.1 t ADT: 5,000

INTERSTATE-91 SB

Good

Over: POOL ROAD

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

Built 1965 Load: 37.2 t ADT: 41,300

US ROUTE 5

Good

Over: ABANDONED RAILROAD

0.5 MI N OF I-691, New Haven, CT

Built 1989 Load: 37.2 t ADT: 13,300

CHURCH ST SOUTH #2

Good

Over: N HAVEN INTERLOCK AMTRAK

AT INT OF UNION AVE, New Haven, CT

Built 2003 Load: 37.2 t ADT: 5,600

ROUTE 40 NB

Good

Over: HARTFORD TURNPIKE

AT EXIT 1 RTE 40, New Haven, CT

Built 1976 Load: 37.3 t ADT: 20,400

CORBIN ROAD

Good

Over: FARM RIVER

210 FT E. OF ROUTE 100, New Haven, CT

Built 1980 Load: 37.3 t ADT: 600

BRADLEY ROAD

Good

Over: WEST RIVER

100 FT E OF ROUTE 69, New Haven, CT

Built 1999 Load: 37.3 t ADT: 3,890

BEACH STREET

Good

Over: CSX RAILROAD

550 FT E OF ROUTE 103, New Haven, CT

Built 1978 Load: 37.6 t ADT: 3,435

ROUTE 63

Good

Over: WOOSTER BROOK

0.1 MILE SOUTH OF I-84, New Haven, CT

Built 2018 Load: 37.6 t ADT: 15,200

I-95 SB RAMPS M&P

Good

Over: EAST STREET & P&W RR

AT WEST END OF Q-BRIDGE, New Haven, CT

Built 2016 Load: 37.8 t ADT: 22,310

LONG MEADOW ROAD

Good

Over: LONG MEADOW POND

OVER LONG MEADOW POND, New Haven, CT

Built 2011 Load: 37.8 t ADT: 1,648

ROUTE 68

Good

Over: TEN MILE RIVER

1.0 MI W OF ROUTE 70, New Haven, CT

Built 1987 Load: 37.8 t ADT: 6,700

ROUTE 71

Good

Over: SODOM BROOK

0.8 MILE SOUTH OF I-691, New Haven, CT

Built 2019 Load: 37.9 t ADT: 141,900

ROUTE 70

Good

Over: BROAD BROOK

320 FT W OF MERIDEN T.L., New Haven, CT

Built 2013 Load: 38.0 t ADT: 1,600

SR 724 WESTBOUND

Good

Over: BREWERY STREET

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

Built 2011 Load: 38.1 t ADT: 37,750

MAPLE STREET

Good

Over: FARM RIVER

0.1 MI S OF ROUTE 100, New Haven, CT

Built 2011 Load: 38.1 t ADT: 1,444

I-691 TR 804

Good

Over: KNOTTER DRIVE

I-691 WB EXIT NO. 2, New Haven, CT

Built 1986 Load: 38.2 t ADT: 9,700

ROUTE 22

Good

Over: MILL RIVER

.2 MI E OF ROUTE 10, New Haven, CT

Built 2002 Load: 38.6 t ADT: 4,200

I-84 WB EXIT 25A

Good

Over: BEAVER POND BROOK

I-84 WB EXIT 25A, New Haven, CT

Built 2006 Load: 38.6 t ADT: 4,500

INTERSTATE-84 WB

Good

Over: PIERPONT ROAD

.8 MI WEST OF CHESHIRE TL, New Haven, CT

Built 2006 Load: 38.9 t ADT: 50,850

HILLFIELD ROAD

Good

Over: EATON BROOK

1.4 mi West of RT 10, New Haven, CT

Built 2015 Load: 38.9 t ADT: 311

INTERSTATE-95

Good

Over: MOOSE HILL ROAD

1.9 MI S OF ROUTE 77, New Haven, CT

Built 1958 Load: 39.5 t ADT: 59,500

ROUTE 114

Good

Over: RACE BROOK

0.2 MI N OF ROUTE 34, New Haven, CT

Built 2016 Load: 39.5 t ADT: 6,500

EAST LIBERTY ST

Good

Over: MAD RIVER

1.0 MILE EAST OF SR 847, New Haven, CT

Built 1907 Load: 39.5 t ADT: 3,500

ROUTE 8 RAMP 031

Good

Over: METRO-NORTH & RR DRIVE

ROUTE 8, EXIT 15, New Haven, CT

Built 1996 Load: 39.8 t ADT: 7,900

ROUTE 71

Good

Over: HARBOR BROOK

0.2 MI S OF COOPER ST., New Haven, CT

Built 2012 Load: 39.8 t ADT: 7,200

ROUTE 121

Good

Over: WEPAWAUG RIVER

0.2 MI S OF ROUTE 15, New Haven, CT

Built 1984 Load: 39.9 t ADT: 5,800

SPRUCE BROOK ROAD

Good

Over: TRANSYLVANIA BRK OVRFLOW

300' west of Route 172, New Haven, CT

Built 2018 Load: 39.9 t ADT: 364

ROUTE 69

Good

Over: HAMILTON PARK ROAD

0.4 MILE NORTH OF I-84, New Haven, CT

Built 1949 Load: 40.1 t ADT: 19,400

INTERSTATE-691 EB

Good

Over: KNOTTER DRIVE

1.1 MI W OF ROUTE 10, New Haven, CT

Built 1986 Load: 40.5 t ADT: 28,500

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.