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)

AMTRAK NE CORRIDOR

Unknown

Over: US ROUTE 1

1.4 MI EAST OF RTE 146, New Haven, CT

Built 1926 ADT: 8,900

ROUTE 15

Unknown

Over: US ROUTE 5

1.23 MI SOUTH OF MERIDEN, New Haven, CT

Built 1998 ADT: 24,700

ROUTE 8

Unknown

Over: ROUTE 34 & RR Drive

ROUTE 8, EXIT 15, New Haven, CT

Built 1951 ADT: 42,300

ROUTE 8

Unknown

Over: SR 727 SB PERSHING DRIVE

0.6 MI N OF ROUTE 34, New Haven, CT

Built 1951 ADT: 9,200

HAWKINS STREET

Unknown

Over: ROUTE 8

0.9 MILES NORTH ROUTE 34, New Haven, CT

Built 1952 ADT: 66,600

BLUFF STREET

Unknown

Over: ROUTE 8

1.3 MI N OF ROUTE 34, New Haven, CT

Built 1959 ADT: 65,000

ROUTE 334

Unknown

Over: ROUTE 8

2.9 MI NORTH OF ROUTE 34, New Haven, CT

Built 1959 ADT: 55,300

ROUTE 8

Unknown

Over: SR 728 (DERBY AVENUE)

.1 MI N OF EXIT 21 RTE 8N, New Haven, CT

Built 1961 ADT: 3,100

ROUTE 8

Unknown

Over: RTE 313 & NAUGATUCK RIV

0.3 MI S OF ROUTE 67, New Haven, CT

Built 1961 ADT: 3,000

ROUTE 8

Unknown

Over: RTE 67,METRO N & RAMP 49

ROUTE 8 AT EXIT 22, New Haven, CT

Built 1962 ADT: 2,700

ROUTE 8

Unknown

Over: ROUTE 63

1.2 MI NO BEACON FALLS TL, New Haven, CT

Built 1960 ADT: 12,400

ROUTE 8

Unknown

Over: SR 709 SOUTH MAIN STREET

AT EXIT 26 ROUTE 8 SB., New Haven, CT

Built 1960 ADT: 5,000

ROUTE 8

Unknown

Over: MAPLE & OAK ST, RAMP 063

ROUTE 8 EXIT 27, New Haven, CT

Built 1960 ADT: 3,300

ROUTE 8

Unknown

Over: ROUTE 8 RAMP 064

ROUTE 8 EXIT NO. 27, New Haven, CT

Built 1960 ADT: 1,100

ROUTE 8

Unknown

Over: ROUTE 8 SB ON RAMP

AT EXIT 28, New Haven, CT

Built 1960 ADT: 4,900

ROUTE 68

Unknown

Over: NAUG RV,RTE 8,MNRR,SR710

RT 68 OVER RTE 8,METRO N., New Haven, CT

Built 1960 ADT: 51,400

ROUTE 8

Unknown

Over: ROUTE 8 RAMP 069

EXIT 28 ROUTE 8 SB, New Haven, CT

Built 1960 ADT: 4,400

ROUTE 15

Unknown

Over: ROUTE 10

ROUTE 15 EXIT NO. 60, New Haven, CT

Built 1948 ADT: 13,500

FARMINGTON CANAL

Unknown

Over: ROUTE 10

0.9 MI N OF ROUTE 15, New Haven, CT

Built 1928 ADT: 18,400

ROUTE 15

Unknown

Over: SR 707(WHITNEY AVE.)

1.3 MI EAST OF ROUTE 10, New Haven, CT

Built 1946 ADT: 13,500

ROUTE 15

Unknown

Over: SR 796

0.8 MI N OF ROUTE 110, New Haven, CT

Built 1940 ADT: 28,700

DERBY MILFORD ROAD

Unknown

Over: ROUTE 15

3.7 MI N. OF ROUTE 110, New Haven, CT

Built 1941 ADT: 95,800

ROUTE 121

Unknown

Over: ROUTE 15

1.3 MI S OF ROUTE 34, New Haven, CT

Built 1941 ADT: 94,600

ROUTE 34

Unknown

Over: ROUTE 15

ROUTE 15 EXIT 57/58, New Haven, CT

Built 1941 ADT: 66,100

ROUTE 114

Unknown

Over: ROUTE 15

0.9 MI N OF ROUTE 34, New Haven, CT

Built 1949 ADT: 72,300

JOHNSON ROAD

Unknown

Over: ROUTE 15

1.1 MI N OF ROUTE 114, New Haven, CT

Built 1949 ADT: 72,300

ROUTE 15

Unknown

Over: ROUTE 243

1 MILE WEST OF ROUTE 63, New Haven, CT

Built 1948 ADT: 8,200

ROUTE 15

Unknown

Over: ROUTE 63

3.7 MI W. OF ROUTE 10, New Haven, CT

Built 1948 ADT: 11,600

ROUTE 15

Unknown

Over: ROUTE 69 & WEST RIVER

.3MI NO OF RT 63 & 69 INT, New Haven, CT

Built 1949 ADT: 15,300

WOODIN STREET

Unknown

Over: ROUTE 15

2.3 MI S OF ROUTE 10, New Haven, CT

Built 1949 ADT: 79,200

WINTERGREEN AVENUE

Unknown

Over: ROUTE 15

1.5 MI SOUTH OF RTE 10, New Haven, CT

Built 1949 ADT: 73,900

BENHAM STREET

Unknown

Over: ROUTE 15

0.3 MI S OF ROUTE 10, New Haven, CT

Built 1949 ADT: 77,800

SKIFF STREET

Unknown

Over: ROUTE 15

0.8 MI N OF ROUTE 10, New Haven, CT

Built 1948 ADT: 72,600

ROUTE 15

Unknown

Over: SR 717 (DIXWELL AVE)

0.7 MI S OF ROUTE 40, New Haven, CT

Built 1946 ADT: 14,000

RIDGE ROAD # 1

Unknown

Over: ROUTE 15

0.5 MI SOUTH OF ROUTE 22, New Haven, CT

Built 1949 ADT: 70,400

HARTFORD TPKE #1

Unknown

Over: ROUTE 15

1 TENTH SOUTH OF ROUTE 22, New Haven, CT

Built 1947 ADT: 70,400

ROUTE 22

Unknown

Over: ROUTE 15

AT EXIT 63 OF ROUTE 15, New Haven, CT

Built 1947 ADT: 67,800

UPPER STATE STREET

Unknown

Over: ROUTE 15

.3 MILES NORTH ROUTE 22, New Haven, CT

Built 1947 ADT: 68,200

ROUTE 150

Unknown

Over: ROUTE 15

AT EXIT 65 OF ROUTE 15 NB, New Haven, CT

Built 1947 ADT: 61,100

ROUTE 15

Unknown

Over: ROUTE 68

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

Built 1946 ADT: 19,400

YALE AVENUE

Unknown

Over: ROUTE 15

0.5 MI N OF ROUTE 68, New Haven, CT

Built 1947 ADT: 76,400

BALDWIN AVENUE

Unknown

Over: ROUTE 15

.3 MILES NORTH I-691, New Haven, CT

Built 1946 ADT: 24,600

CHURCH ST SOUTH #1

Unknown

Over: ROUTE 34

BTWN N & S FRONTAGE ROADS, New Haven, CT

Built 1960 ADT: 43,000

INTERSTATE-84 WB

Unknown

Over: ROUTE 70

2.4 MI W OF I-691, New Haven, CT

Built 1961 ADT: 13,700

INTERSTATE-84 EB

Unknown

Over: ROUTE 70

2.4 MI W OF I-691, New Haven, CT

Built 1961 ADT: 13,700

AMTRAK

Unknown

Over: ROUTE 71

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

Built 1841 ADT: 10,700

BRANFORD STEAM RR

Unknown

Over: ROUTE 80

0.1 MI W OF ROUTE 139, New Haven, CT

Built 2006 ADT: 19,100

ICHABOD ROAD

Unknown

Over: INTERSTATE 84

BTWN I-84 EXITS 13 & 14, New Haven, CT

Built 1963 ADT: 75,100

INTERSTATE 84 EB

Unknown

Over: ROUTE 172

AT EXIT 14, New Haven, CT

Built 1963 ADT: 8,200

INTERSTATE 84 WB

Unknown

Over: ROUTE 172

EXIT 14, New Haven, CT

Built 1963 ADT: 8,200
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.