Fairfield County, CT

840 public highway bridges

Fairfield County Bridge Snapshot

Fairfield County, Connecticut contains 840 public highway bridges in the FHWA National Bridge Inventory. Roughly 18.3% are rated “Good,” 51.7% “Fair,” 3.6% “Poor,” and 3.6% 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.

840

Total Bridges

18.3%

Good

3.6%

Poor

3.6%

Structurally Deficient

Condition Distribution

Good

18.3% (154)

Fair

51.7% (434)

Poor

3.6% (30)

SD

3.6% (30)

All Bridges (840)

Sort:

CONGRESS STREET #1

Over: ROUTE 15

1.8 MI S OF ROUTE 58, Fairfield, CT

Built 1938 ADT: 66,420

BURR STREET

Over: ROUTE 15

BETWEEN EXITS 43 & 44, Fairfield, CT

Built 1939 ADT: 66,420

ROUTE 15

Over: ROUTE 58

AT EXITS 44 & 45, Fairfield, CT

Built 1938 ADT: 15,100

MOREHOUSE DR

Over: ROUTE 15

0.8 MI S OF ROUTE 59, Fairfield, CT

Built 1939 ADT: 71,020

ROUTE 59

Over: ROUTE 15

AT EXIT 46, Fairfield, CT

Built 1936 ADT: 72,920

PARK AVENUE

Over: ROUTE 15

1.4 MI S OF ROUTE 111, Fairfield, CT

Built 1940 ADT: 74,220

PLATTSVILLE ROAD

Over: ROUTE 15

2.6 MI S OF ROUTE 25, Fairfield, CT

Built 1939 ADT: 79,400

MADISON AVENUE

Over: ROUTE 15

0.6 MI S OF ROUTE 111, Fairfield, CT

Built 1939 ADT: 79,400

ROUTE 111

Over: ROUTE 15

ROUTE 15 EXIT NO. 48, Fairfield, CT

Built 2003 ADT: 68,400

FRENCHTOWN ROAD

Over: ROUTE 15

0.5 MI N OF ROUTE 111, Fairfield, CT

Built 1942 ADT: 87,800

PEQUONNOCK RIVER T

Over: ROUTE 15

0.2 MI N OF ROUTE 25, Fairfield, CT

Built 1935 ADT: 67,000

ROUTE 15

Over: ROUTE 127

1.4 MILES S OF ROUTE 8, Fairfield, CT

Built 1934 ADT: 9,800

JAMES FARM ROAD

Over: ROUTE 15

0.8 MI S OF ROUTE 110, Fairfield, CT

Built 1940 ADT: 85,600

ROUTE 15

Over: ROUTE 110

ROUTE 15 - EXIT NO. 53, Fairfield, CT

Built 1940 ADT: 21,500

INTERSTATE 84 EB

Over: ROUTE 25

EXIT 9 INTERSTATE 84, Fairfield, CT

Built 1960 ADT: 10,600

INTERSTATE 84 WB

Over: ROUTE 25

EXIT 9 INTERSTATE-84, Fairfield, CT

Built 1962 ADT: 10,600

INTERSTATE 84

Over: ROUTE 37 (NORTH STREET)

JCT OF RT 37, Fairfield, CT

Built 1960 ADT: 20,700

INTERSTATE 84

Over: ROUTE 39

0.4 MI S OF ROUTE 37, Fairfield, CT

Built 1962 ADT: 22,700

KENOSIA AVENUE

Over: I-84 & HOUSATONIC RR

1 MI W RT 7 & 84 SPLIT, Fairfield, CT

Built 1962 ADT: 81,600

WESTVILLE AVE EXT

Over: INTERSTATE 84

0.7 MI E OF US ROUTE 7, Fairfield, CT

Built 1962 ADT: 116,800

MADISON AVENUE

Over: INTERSTATE 84

0.2 MI WEST OF ROUTE 37, Fairfield, CT

Built 1962 ADT: 99,000

INTERSTATE-84 EB

Over: SR 805, EAGLE RD, & HRR

.42 MI WEST OF US ROUTE 6, Fairfield, CT

Built 1962 ADT: 21,100

INTERSTATE 84 WB

Over: SR 805, EAGLE RD, & HRR

EXIT 7, Fairfield, CT

Built 1962 ADT: 21,100

SR 911 (NEWTOWN RO

Over: INTERSTATE 84

EXIT 8, ROUTE 84 & US 6, Fairfield, CT

Built 1962 ADT: 67,200

GARELLA ROAD

Over: INTERSTATE 84

.4 MI EAST OF BETHEL TL, Fairfield, CT

Built 1962 ADT: 78,500

VAIL ROAD

Over: INTERSTATE 84

BETWEEN EXITS 8 & 9, Fairfield, CT

Built 1962 ADT: 78,500

OLD HAWLEYVILLE RD

Over: INTERSTATE 84

BETWEEN EXITS 8 & 9, Fairfield, CT

Built 1962 ADT: 78,500

SECOR ROAD

Over: INTERSTATE 84

BETWEEN EXITS 8 AND 9, Fairfield, CT

Built 1962 ADT: 78,500

OLD HAWLEYVILLE RD

Over: INTERSTATE 84

.6 MI WEST OF RT 25, Fairfield, CT

Built 1962 ADT: 78,500

TUNNEL ROAD

Over: INTERSTATE 84

0.8 MI E OF ROUTE 25, Fairfield, CT

Built 1962 ADT: 76,400

CURRITUCK ROAD

Over: INTERSTATE 84

1.7 MI E OF ROUTE 25, Fairfield, CT

Built 1962 ADT: 76,400

PARMALEE HILL ROAD

Over: INTERSTATE 84

1.9 MI EAST OF ROUTE 25, Fairfield, CT

Built 1962 ADT: 76,400

SCHOOL HOUSE HILL

Over: INTERSTATE 84

0.5 WEST OF EXIT 10, Fairfield, CT

Built 1962 ADT: 76,400

HOUSATONIC RR

Over: ROUTE 133

0.2 MILES EAST OF ROUTE 7, Fairfield, CT

Built 1933 ADT: 6,800

HILLANDALE ROAD #1

Over: SSR 476

1.0 MI N OF I-95, Fairfield, CT

Built 1959 ADT: 11,700

HOUSATONIC RR

Over: ROUTE 111

0.1 MI S OF ROUTE 34, Fairfield, CT

Built 1963 ADT: 4,100

LONG HILL CROSS RD

Over: ROUTE 8

.6 MI NORTH OF EXIT 12, Fairfield, CT

Built 1975 ADT: 65,100

CONSTITUTION BLVD

Over: ROUTE 8

.1 MI N OF EXT 13 RTE 8 S, Fairfield, CT

Built 1975 ADT: 60,200

SR 734 (DANIELS FA

Over: ROUTE 25

1.4 MI N OF ROUTE 15, Fairfield, CT

Built 1975 ADT: 31,000

WOODCREST AVENUE

Over: ROUTE 8 & MERRITT BLVD

0.8 MI N OF ROUTE 15, Fairfield, CT

Built 1975 ADT: 79,500

HUNTINGTON ROAD

Over: ROUTE 8

1.3 MI N OF ROUTE 15, Fairfield, CT

Built 1975 ADT: 60,300

INTERSTATE 84 EB

Over: I-84 RAMP 028

I-84 EB JUST PAST EXIT 11, Fairfield, CT

Built 1972 ADT: 5,500

INTERSTATE 84 WB

Over: ROUTE 34

0.25 MI EAST OF EXIT 11, Fairfield, CT

Built 1972 ADT: 5,900

INTERSTATE 84 EB

Over: ROUTE 34

.25 MILES WEST OF EXIT 11, Fairfield, CT

Built 1972 ADT: 5,900

INTERSTATE 84 WB

Over: INTERSTATE 84 RAMP 028

1 MI EAST OF EXIT 10, Fairfield, CT

Built 1972 ADT: 5,500

PHILO CURTIS RD #1

Over: I-84 WB & I-84 RAMP 031

I-84 AT EXIT 11, Fairfield, CT

Built 1973 ADT: 4,700

I-84 RAMP 031

Over: ROUTE 34

OVER RTE 34, Fairfield, CT

Built 1973 ADT: 13,500

I-84 RAMP 030

Over: ROUTE 34

Over ROUTE 34, Fairfield, CT

Built 1973 ADT: 13,500

I-84 RAMP 031

Over: I-84 EB & I-84 RAMP 028

I-84 WB EX 11 RMP TO RT34, Fairfield, CT

Built 1973 ADT: 5,500

I-84 RAMP 031

Over: INTERSTATE 84 WB

I-84 WB EXIT 11, Fairfield, CT

Built 1973 ADT: 32,100

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

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