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)

SIMPAUG TURNPIKE

Good

Over: METRO-NORTH RAILROAD

300-FT EAST O MARCHANT RD, Fairfield, CT

Built 2012 Load: 33.9 t ADT: 1,800

ROUTE 8 NORTHBOUND

Good

Over: ARMSTRONG ROAD

2.5 NORTH OF ROUTE 15, Fairfield, CT

Built 1975 Load: 34.0 t ADT: 31,800

HANOVER ROAD

Good

Over: HOUSATONIC RAILROAD

JCT OF BLVD & HANOVER RD, Fairfield, CT

Built 1919 Load: 35.4 t ADT: 1,300

ASH CREEK BLVD

Good

Over: MNRR & CONST COMMENT WAY

0.2 MI SOUTH ROUTE 1, Fairfield, CT

Built 2010 Load: 35.5 t ADT: 4,373

ONEIDA DRIVE

Good

Over: SMITH COVE

0.25 MILE SOUTH OF I-95, Fairfield, CT

Built 2021 Load: 35.6 t ADT: 220

VALLEY ROAD

Good

Over: HORSE TAVERN BROOK

1000 FT EAST OF ROUTE 59, Fairfield, CT

Built 2019 Load: 36.0 t ADT: 1,250

US RTE 7 SB TR 801

Good

Over: PERRY AVENUE

US ROUTE 7 SB EXIT NO. 3, Fairfield, CT

Built 1990 Load: 36.0 t ADT: 2,900

ROUTE 110

Good

Over: FREEMAN BROOK

0.4 MI S OF ROUTE 15, Fairfield, CT

Built 2016 Load: 36.3 t ADT: 10,700

ROUTE 53

Good

Over: SAUGATUCK RIVER

2.6 MI N OF ROUTE 107, Fairfield, CT

Built 2016 Load: 36.6 t ADT: 3,900

ROUTE 15

Good

Over: PEQUONNOCK RIVER

0.3 MI N OF ROUTE 25, Fairfield, CT

Built 1935 Load: 36.6 t ADT: 67,000

HARBOR ROAD

Good

Over: MILL RIVER

500 FT SOUTH OF US RTE 1, Fairfield, CT

Built 1927 Load: 36.8 t ADT: 1,600

MARIOMI ROAD

Good

Over: SILVERMINE RIVER

300' EAST OF VALLEY ROAD, Fairfield, CT

Built 2013 Load: 36.9 t ADT: 800

MUSKET RIDGE ROAD

Good

Over: BALL POND BROOK

500' W OF WOOD CREEK ROAD, Fairfield, CT

Built 2010 Load: 36.9 t ADT: 80

MERIDIAN RIDGE DR

Good

Over: STREAM

0.4 M W JUNC OLD HAWLEY R, Fairfield, CT

Built 2008 Load: 36.9 t ADT: 107

SOUTH PARK AVENUE

Good

Over: MILL RIVER

150 FT W OF BUCK HILL RD, Fairfield, CT

Built 2020 Load: 37.3 t ADT: 2,130

INTERSTATE-95

Good

Over: HOUSATONIC RIVER

0.3 MI W OF I95 EX 34, Fairfield, CT

Built 2017 Load: 37.6 t ADT: 88,400

HALES ROAD

Good

Over: METRO-NORTH RAILROAD

0.5 MI W HILLS POINT RD, Fairfield, CT

Built 1910 Load: 38.2 t ADT: 1,080

US ROUTE 1

Good

Over: STONEY BROOK

0.7 MI SOUTH OF I-95 UP, Fairfield, CT

Built 1986 Load: 38.5 t ADT: 11,800

TRINITY PASS ROAD

Good

Over: RIPPOWAM RIVER

300'W OF PONUS RIDGE ROAD, Fairfield, CT

Built 1990 Load: 38.7 t ADT: 1,165

WALNUT HILL ROAD

Good

Over: LIMEKILN BROOK

4000 FT N OF RTS 58&302, Fairfield, CT

Built 2014 Load: 38.8 t ADT: 7,845

SSR 490

Good

Over: POOTATUCK RIVER

1500' E OF NUNNAWAUK ROAD, Fairfield, CT

Built 1998 Load: 38.8 t ADT: 11,100

PLUMTREES ROAD

Good

Over: EAST SWAMP BROOK

JCT OF WALNUT HILL ROAD, Fairfield, CT

Built 2016 Load: 39.2 t ADT: 6,600

SHERWOOD AVENUE

Good

Over: BYRAM RIVER

OVER BYRAM RIVER, Fairfield, CT

Built 2010 Load: 39.2 t ADT: 3,935

VALLEY ROAD

Good

Over: SILVERMINE RIVER

JCT OF DEEP VALLEY ROAD, Fairfield, CT

Built 1951 Load: 39.5 t ADT: 905

THE BOULEVARD

Good

Over: HOUSATONIC RAILROAD

1 MI NORTH OF RTE 6 INTER, Fairfield, CT

Built 1989 Load: 39.9 t ADT: 1,263

LANE STREET

Good

Over: MEANS BROOK

0.1 MI E OF HUNTINGTON RD, Fairfield, CT

Built 2020 Load: 40.5 t ADT: 120

ROUND HILL ROAD

Good

Over: CONVERSE POND BROOK

NEAR EXIT 28-ROUTE 15, Fairfield, CT

Built 2018 Load: 41.5 t ADT: 6,760

EDMOND ROAD

Good

Over: UNNAMED TRIBUTARY

SW OF I-84 EXIT10 ON-RAMP, Fairfield, CT

Built 2020 Load: 41.8 t ADT: 2,000

BUTTON SHOP ROAD

Good

Over: HOUSATONIC RR

.5 MI.EAST OF RTE.25, Fairfield, CT

Built 1911 Load: 42.6 t ADT: 2,200

ROUTE 39

Good

Over: MORRISSEY BROOK

1.2 MI N OF INT OF 37&39, Fairfield, CT

Built 2006 Load: 42.8 t ADT: 1,300

ROUTE 127

Good

Over: PEQUONNOCK RIVER

0.4 MI N OF ROUTE 15, Fairfield, CT

Built 1980 Load: 42.9 t ADT: 11,400

CENTRAL AVENUE

Good

Over: METRO NORTH RAILROAD

0.5 MI SOUTH OF ROUTE 1, Fairfield, CT

Built 1903 Load: 43.1 t ADT: 7,600

SASCO CREEK ROAD

Good

Over: METRO-NORTH RAILROAD

350 FT S OF I-95, Fairfield, CT

Built 1920 Load: 43.6 t ADT: 840

WALNUT TREE HILLRD

Good

Over: POOTATUCK RIVER

300 FT NORTH OF SR 816, Fairfield, CT

Built 1938 Load: 44.1 t ADT: 184

SAWMILL ROAD #1

Good

Over: BALL POND BROOK

.5 MI N E OF ROUTE 37 JCT, Fairfield, CT

Built 2019 Load: 44.1 t ADT: 2,532

SOUTH PARK AVENUE

Good

Over: MILL RIVER

1.0 MI N OF ROUTE 15, Fairfield, CT

Built 2021 Load: 44.7 t ADT: 4,260

BAYBERRY LANE #2

Good

Over: ASPETUCK RIVER

0.1 MI NORTH OF ROUTE 136, Fairfield, CT

Built 2022 Load: 44.7 t ADT: 676

ROUTE 8 SOUTHBOUND

Good

Over: OLD STRATFORD ROAD

3.3 MI N OF ROUTE 15, Fairfield, CT

Built 1975 Load: 44.8 t ADT: 26,400

ROUTE 35

Good

Over: RIDGEFIELD BROOK

0.8 MI N OF ROUTE 116, Fairfield, CT

Built 2018 Load: 45.0 t ADT: 16,800

MILL PLAIN ROAD

Good

Over: MILL RIVER

2.0 MI N OF I-95, Fairfield, CT

Built 2011 Load: 45.3 t ADT: 8,800

ROUTE 58

Good

Over: ASPETUCK RIVER

0.4 MI N OF ROUTE 136, Fairfield, CT

Built 1947 Load: 45.4 t ADT: 4,600

ROUTE 8 SOUTHBOUND

Good

Over: CAPITOL AVENUE

2.4 MI N. OF I-95, Fairfield, CT

Built 1972 Load: 46.0 t ADT: 46,600

ROUTE 8 NORTHBOUND

Good

Over: CAPITOL AVENUE

2.4 MILES NORTH OF I-95, Fairfield, CT

Built 1972 Load: 46.0 t ADT: 44,500

WAVERLY ROAD

Good

Over: FARMILL RIVER

0.5 MI N OF ROUTE 108, Fairfield, CT

Built 2019 Load: 46.7 t ADT: 3,270

SR 806

Good

Over: LIMEKILN BROOK

0.2 MI S OF I-84 EXIT 8, Fairfield, CT

Built 1991 Load: 46.7 t ADT: 24,000

OLD GREENWOODS RD

Good

Over: GREENWOODS BROOK

AT ROUTE 37 INTERSECTION, Fairfield, CT

Built 2010 Load: 47.0 t ADT: 54

BEACHSIDE AVENUE

Good

Over: METRO NORTH RAILROAD

125 FT S OF I-95, Fairfield, CT

Built 1982 Load: 47.2 t ADT: 2,526

CENTER ROAD

Good

Over: ASPETUCK RESERVOIR

0.1 MI E OF ROUTE 58, Fairfield, CT

Built 1958 Load: 47.2 t ADT: 2,866

JELLIFF MILL ROAD

Good

Over: NOROTON RIVER

0.1 MI WEST OF ROUTE 106, Fairfield, CT

Built 2018 Load: 47.3 t ADT: 1,940

ROUTE 137

Good

Over: RIPPOWAM RIVER

0.1 MI NORTH OF ROUTE 15, Fairfield, CT

Built 2023 Load: 47.6 t ADT: 14,900

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

Related

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