Fairfield County, CT

840 public highway bridges

Fairfield County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Fairfield County, Connecticut contains 840 public highway bridges. Roughly 18.3% are rated “Good,” 51.7% “Fair,” and 3.6% “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.

840
Total Bridges
18.3%
Good
51.7%
Fair
3.6%
Poor Condition

Condition Distribution

Good
18.3% (154)
Fair
51.7% (434)
Poor
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.

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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.