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)

Sort:

ROUTE 8 SOUTHBOUND

Over: HUNTINGDON AVENUE

.4MI S OF WTRBY WTOWN TL, New Haven, CT

Built 1964 Load: 52.4 t ADT: 17,500

DAVIS STREET

Over: LAKE WHITNEY

0.2 MI E OF WHITNEY AVE, New Haven, CT

Built 1992 Load: 52.6 t ADT: 9,355

COPSE ROAD

Over: AMTRAK RAILROAD

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

Built 1910 Load: 52.7 t ADT: 1,700

INTERSTATE-91 SB

Over: POND HILL ROAD

INTERSTATE-91 EXIT NO. 13, New Haven, CT

Built 1965 Load: 52.8 t ADT: 36,700

INTERSTATE-95

Over: ALLING CROSSING ROAD

0.5 MILE S OF ROUTE 162, New Haven, CT

Built 1957 Load: 53.1 t ADT: 107,900

O'NEILL ROAD

Over: EIGHT MILE BROOK

0.2 MI WEST OF ROUTE 188, New Haven, CT

Built 1956 Load: 53.7 t ADT: 490

ROUTE 8

Over: DIVISION STREET

1.5 MI NORTH OF ROUTE 34, New Haven, CT

Built 1956 Load: 53.8 t ADT: 59,000

ROUTE 67

Over: POMPERAUG RIVER

.5 WEST OF RT. 6 & 67, New Haven, CT

Built 1958 Load: 54.1 t ADT: 5,900

INTERSTATE-691 WB

Over: FUTURE I-691 TR 804

0.06 MI N OF WB OP RTE 15, New Haven, CT

Built 1965 Load: 54.1 t ADT: 40,100

TEMPLE STREET

Over: FARMINGTON CANAL GREENWA

0.1 MI S OF TRUMBULL ST., New Haven, CT

Built 1900 Load: 54.1 t ADT: 4,200

INTERSTATE-91

Over: GRAND AVENUE

0.7 MI N OF I-95, New Haven, CT

Built 1965 Load: 54.4 t ADT: 135,400

ROUTE 8 SOUTHBOUND

Over: WASHINGTON AVENUE

.7 MI SOUTH OF I-84, New Haven, CT

Built 1965 Load: 54.4 t ADT: 25,600

ROUTE 8 RAMP 128

Over: RIVERSIDE STREET SB

EXIT 32 ROUTE 8 NB, New Haven, CT

Built 1966 Load: 54.4 t ADT: 3,000

HUNTINGDON AVENUE

Over: NAUGATUCK RIVER

NEAR EXIT 36 ROUTE 8 NB, New Haven, CT

Built 1971 Load: 54.4 t ADT: 24,900

MAPLE STREET

Over: WEPAWAUG RIVER

0.2 MI SO. OF US ROUTE 1, New Haven, CT

Built 1951 Load: 54.4 t ADT: 540

ROUTE 8 RAMP 063

Over: NAUGATUCK RIVER FLOOD PL

EXIT 27, ROUTE 8 S.B., New Haven, CT

Built 1960 Load: 54.6 t ADT: 5,000

ROUTE 8 RAMP 077

Over: BANK STREET

NB ON RAMP FROM S.LEONARD, New Haven, CT

Built 1965 Load: 54.8 t ADT: 5,100

RUBBER AVENUE

Over: LONG MEADOW POND BROOK

AT NEUMANN STREET, New Haven, CT

Built 1983 Load: 55.0 t ADT: 7,300

ROUTE 15

Over: WEPAWAUG RIVER

0.2 MILES NORTH ROUTE 34, New Haven, CT

Built 1949 Load: 55.4 t ADT: 72,300

SR 796

Over: MEADOW STREET

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

Built 1940 Load: 55.4 t ADT: 5,900

ROUTE 15 RAMP 148

Over: WILLOW BROOK

.2 MILES N. OF E. MAIN ST, New Haven, CT

Built 1964 Load: 55.4 t ADT: 7,900

INTERSTATE-691 WB

Over: GRAVEL STREET

.31 EAST OF EXIT ROUTE 5, New Haven, CT

Built 1965 Load: 56.2 t ADT: 41,200

EAST MAIN STREET

Over: HARBOR BROOK

190 FT E OF STATE ST, New Haven, CT

Built 1960 Load: 56.2 t ADT: 8,700

ROUTE 8 NB

Over: RAMP FROM LOWER DERBY RD

.8M S OF ENT 21 ROUTE 8NB, New Haven, CT

Built 1961 Load: 56.4 t ADT: 52,800

INTERSTATE 84 WB

Over: WASHINGTON STREET

.25 MILES WEST OF EXIT 24, New Haven, CT

Built 1980 Load: 56.4 t ADT: 46,700

INTERSTATE 691 WES

Over: BEE STREET

0.2 MI WEST OF I-91, New Haven, CT

Built 1965 Load: 56.7 t ADT: 20,700

INTERSTATE-91 NB

Over: WILLOW STREET

150 FT W OF US RT 5, New Haven, CT

Built 1965 Load: 57.0 t ADT: 67,300

INTERSTATE-91 NB

Over: HUMPHREY STREET

1.1 MI N OF I-95, New Haven, CT

Built 1965 Load: 57.2 t ADT: 68,800

INTERSTATE-91 SB

Over: HUMPHREY STREET

1.1 MI N OF I-95, New Haven, CT

Built 1965 Load: 57.3 t ADT: 69,000

INTERSTATE-91 NB

Over: POND HILL ROAD

INTERSTATE-91 EXIT NO. 13, New Haven, CT

Built 1965 Load: 57.3 t ADT: 41,800

MIDDLETOWN AVENUE

Over: QUINNIPIAC RIVER

100' NORTH OF FRONT ST, New Haven, CT

Built 1989 Load: 57.3 t ADT: 13,545

INTERSTATE-91 SB

Over: AMTRAK RAILROAD

.68 MILES N OF ROUTE 22, New Haven, CT

Built 1965 Load: 57.7 t ADT: 39,900

ROUTE 34

Over: WEST RIVER

0.2 MI W OF ROUTE 10, New Haven, CT

Built 1925 Load: 58.0 t ADT: 22,100

INTERSTATE-691 EB

Over: GRAVEL STREET

.5 MI WEST OF EXIT 10, New Haven, CT

Built 1965 Load: 59.3 t ADT: 41,200

CROWN STREET

Over: CHURCH STREET TUNNEL

BETWEEN CHURCH & TEMPLE, New Haven, CT

Built 1963 Load: 59.3 t ADT: 4,500

I-91 N.B. RAMPS

Over: WILLOW BROOK

I-91 N.B. EXIT NO. 16, New Haven, CT

Built 1964 Load: 59.6 t ADT: 4,800

I-84 RAMP 202

Over: BANK STREET

EB On Ramp from Meadow St, New Haven, CT

Built 1965 Load: 59.6 t ADT: 3,800

INTERSTATE 84 EB

Over: WASHINGTON STREET

.25 MILES WEST OF EXIT 24, New Haven, CT

Built 1980 Load: 59.8 t ADT: 41,300

INTERSTATE-95

Over: WEST AVENUE

2.1 MI S OF ROUTE 121, New Haven, CT

Built 1957 Load: 59.9 t ADT: 97,600

ROUTE 15 SB

Over: QUINNIPIAC RIVER

1 MI. NO. OF JCT RTE 150, New Haven, CT

Built 1946 Load: 59.9 t ADT: 35,800

INTERSTATE-91 SB

Over: STODDARD AVENUE

RT5 TO BROADWY TO ELM ST., New Haven, CT

Built 1965 Load: 60.5 t ADT: 45,400

I-91 SB & TR 813

Over: BEE STREET

.18 MI SO OF I-691 EB OP, New Haven, CT

Built 1965 Load: 61.7 t ADT: 22,500

ROUTE 15

Over: AMTRAK RAILROAD

600 FT SOUTH OF ROUTE 5, New Haven, CT

Built 1947 Load: 61.9 t ADT: 69,500

ROUTE 34

Over: DERBY CANAL

0.8 MI W OF ROUTE 8, New Haven, CT

Built 1952 Load: 61.9 t ADT: 9,600

POND LILY AVENUE

Over: WEST RIVER

AT JCT OF WHALLEY AV, New Haven, CT

Built 1991 Load: 62.1 t ADT: 7,300

INTERSTATE-95

Over: LONG WHARF DRIVE

0.5 MI N. OF ROUTE 10, New Haven, CT

Built 1958 Load: 62.2 t ADT: 125,900

I-91 RAMP 136

Over: HUMPHREY STREET

1.1 MI N OF I-95, New Haven, CT

Built 1965 Load: 62.4 t ADT: 10,000

ROUTE 15

Over: QUINNIPIAC STREET

0.7 MI N OF NO HAVEN T.L, New Haven, CT

Built 1947 Load: 62.5 t ADT: 66,900

HOSLEY AVENUE

Over: AMTRAK RAILROAD

200' S OF INTERSTATE-95, New Haven, CT

Built 1887 Load: 63.4 t ADT: 340

INTERSTATE-91 SB

Over: BALDWIN AVENUE

.74 MI NO I-691 & RTE 66, New Haven, CT

Built 1964 Load: 63.5 t ADT: 53,500

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

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

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026