State profile · Below median Poor share

Connecticut bridge safety

According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Connecticut.

4,365
Public bridges
27.8%
Good condition
4.7%
Poor condition

Connecticut holds 4,365 public highway bridges (#38 of 52 by inventory) with a 4.72% Poor share (#36 of 52 by Poor share).

That is 4.7% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 17 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.

Inventory: FHWA NBI 2024 · last ETL August 2026

Total Bridges

4,365

Public highway bridges in Connecticut

Good Condition

27.8%

1,213 bridges rated 7-9

-22.2pp vs 50% benchmark

Poor Condition

4.7%

206 bridges whose lowest applicable component is rated 0-4

-2.8pp vs national avg 7.5%

Connecticut vs national bridge condition

Connecticut - Good condition share 27.8%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Connecticut - Poor-condition share 15.7%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

Connecticut in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: Connecticut has 4,365 bridges and a 4.7% Poor-condition share in the 2024 NBI, rank #17 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: Connecticut has 4,365 bridges and a 4.7% Poor-condition share in the 2024 NBI, rank #17 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

Connecticut vs all states by public bridge inventory

Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges

4,365 38th of 54 higher than 16 of 54 states

States and territories, banded by public bridge inventory size

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · 2024

Read the rank neighborhood for Connecticut

The highlighted point is Connecticut: 4,365 bridges and 4.72% in Poor condition, rank #17 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Connecticut on that same Poor-share ordering:

  • Maryland: 5,484 bridges · 4.56% Poor
  • Oregon: 8,305 bridges · 4.61% Poor
  • Connecticut: 4,365 bridges · 4.72% Poor
  • Ohio: 26,729 bridges · 4.74% Poor
  • Colorado: 8,965 bridges · 4.82% Poor

The full national sortable table lives on the rankings page.

Material families in Connecticut

Exclusive FHWA material families across all 4,365 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains Connecticut’s inventory

State agency holds 65.3% of the 4,365 public highway bridges filed under Connecticut in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When Connecticut’s bridges were built

Pre-1950 construction accounts for 18.9% of the 4,365 bridges with a recorded original year in Connecticut. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

Connecticut27.8%67.5%GoodFairPoor
Bridge inventory deck-condition mix - Connecticut (FHWA NBI)

Counties (0)

Connecticut vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Connecticut on the same metric.

MD

Maryland

4.56% top marginal rate
Structure
Progressive
Burden @ $100K
$5,484

OR

Oregon

4.61% top marginal rate
Structure
Progressive
Burden @ $100K
$8,305
Selected

CT

Connecticut

4.72% top marginal rate
Structure
Progressive
Burden @ $100K
$4,365

OH

Ohio

4.74% top marginal rate
Structure
Progressive
Burden @ $100K
$26,729

CO

Colorado

4.82% top marginal rate
Structure
Progressive
Burden @ $100K
$8,965

Bridges Needing Most Attention in Connecticut

Six lowest-condition bridges in Connecticut, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

FALLS ROAD

Poor

Over: NONNEWAUG BROOK

300 E OF NONNEWAUG RD, CT

Built 1956 Load: 0.0 t ADT: 95

SHERMAN STREET

Poor

Over: YANTIC RIVER

1 MILE WEST ROUTE 2, CT

Built 1920 Load: 3.9 t

ROUTE 191

Poor

Over: SCANTIC RIVER

1.9 MI SOUTH OF RTE. 140, CT

Built 1925 Load: 5.8 t ADT: 1,500

RIVER BANK ROAD

Poor

Over: EAST BRANCH MIANUS RIVER

0.8 MI N OF ROUTE 15, CT

Built 1957 Load: 8.1 t ADT: 1,500

TRACY ROAD #1

Poor

Over: KITT BROOK

0.5 MI SOUTH OF ROUTE 14, CT

Built 1928 Load: 8.7 t ADT: 176

ROUTE 136

Poor

Over: SAUGATUCK RIVER

BETWEEN I-95 EXIT 17 & 18, CT

Built 1870 Load: 10.0 t ADT: 14,500

All Bridges in Connecticut

OLD ROUTE 79

Good

Over: AMTRAK RAILROAD

200 FT NORTH OF BRADLEY R, CT

Built 1992 Load: 46.3 t ADT: 676

SR 796 EASTBOUND

Good

Over: WELLINGTON ROAD EXT.

2.5 MI N OF US ROUTE 1, CT

Built 1992 Load: 46.3 t ADT: 18,300

OLD CLINTON ROAD

Good

Over: AMTRAK RAILROAD

1.4 MI E OF ROUTE 145, CT

Built 1997 Load: 46.5 t ADT: 2,400

OLD TURNPIKE NORTH

Good

Over: KONKAPOT RIVER

SO OF SODOM RD INT., CT

Built 2009 Load: 46.5 t ADT: 760

OLD CLINTONVLLE RD

Good

Over: MUDDY RIVER

0.2 MI EAST OF ROUTE 22, CT

Built 2005 Load: 46.7 t ADT: 995

BELL STREET

Good

Over: SALMON BROOK

.25 MI (N) INT RTE 94, CT

Built 2008 Load: 46.7 t ADT: 1,773

RIVERSVILLE ROAD

Good

Over: EAST BRANCH BYRAM RIVER

200 SOUTH OF RTE.15 OP, CT

Built 2014 Load: 46.7 t ADT: 3,940

WAVERLY ROAD

Good

Over: FARMILL RIVER

0.5 MI N OF ROUTE 108, 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, CT

Built 1991 Load: 46.7 t ADT: 24,000

WEST ROAD

Good

Over: E. BRANCH NAUGATUCK RV.

0.5 MILES WEST OF RT 263, CT

Built 2017 Load: 46.7 t ADT: 550

JARVIS STREET

Good

Over: TEN MILE RIVER

1.4 M WEST OF ROUTE 10, CT

Built 1979 Load: 46.8 t ADT: 2,200

STONEMILL ROAD #1

Good

Over: FENTON RIVER

.1MI SO OF CHAFFEEVLLE RD, CT

Built 2012 Load: 47.0 t ADT: 127

I-84 EB OFF RAMP

Good

Over: ROUTE 30 (HARTFORD TPKE)

EXIT 64, CT

Built 1981 Load: 47.0 t ADT: 8,000

OLD GREENWOODS RD

Good

Over: GREENWOODS BROOK

AT ROUTE 37 INTERSECTION, CT

Built 2010 Load: 47.0 t ADT: 54

ROUTE 148

Good

Over: WHALEBONE CREEK

0.8 MI W OF ROUTE 82, CT

Built 1928 Load: 47.1 t ADT: 300

INTERSTATE-95

Good

Over: STATE STREET

0.3 MI N OF ROUTE 77, CT

Built 1958 Load: 47.2 t ADT: 57,400

BEACHSIDE AVENUE

Good

Over: METRO NORTH RAILROAD

125 FT S OF I-95, CT

Built 1982 Load: 47.2 t ADT: 2,526

CENTER ROAD

Good

Over: ASPETUCK RESERVOIR

0.1 MI E OF ROUTE 58, CT

Built 1958 Load: 47.2 t ADT: 2,866

INTERSTATE-95

Good

Over: US ROUTE 1 SOUTHBOUND

0.4 MI N OF ROUTE 130, CT

Built 2014 Load: 47.3 t ADT: 88,400

BURNHAM STREET

Good

Over: MATTABESSET RIVER

575 FT W. OF R0UTE 372, CT

Built 2019 Load: 47.3 t ADT: 5,151

JELLIFF MILL ROAD

Good

Over: NOROTON RIVER

0.1 MI WEST OF ROUTE 106, CT

Built 2018 Load: 47.3 t ADT: 1,940

ROUTE 15

Good

Over: WHEELERS FARM ROAD

1.5 MI N OF ROUTE 110, CT

Built 1993 Load: 47.3 t ADT: 88,000

NEW WHITFIELD ST

Good

Over: AMTRAK RAILROAD

0.5 MI SOUTH OF RTE 146, CT

Built 1940 Load: 47.5 t ADT: 2,500

INTERSTATE 84 EB

Good

Over: SR 824 (WOODLAND RD.)

EXIT 2, CT

Built 1984 Load: 47.5 t ADT: 34,300

I-95 RAMP 164

Good

Over: INTERSTATE-95

0.2 MI S OF ROUTE 337, CT

Built 2006 Load: 47.6 t ADT: 9,900

I-84 WESTBOUND

Good

Over: MAD RIVER

1600+/- EAST OF ROUTE 69, CT

Built 2018 Load: 47.6 t ADT: 48,700

ROUTE 137

Good

Over: RIPPOWAM RIVER

0.1 MI NORTH OF ROUTE 15, CT

Built 2023 Load: 47.6 t ADT: 14,900

ROUTE 148

Good

Over: BROOK

0.2 MI E OF ROUTE 79, CT

Built 2015 Load: 47.6 t ADT: 1,900

NORTH SHORE ROAD

Good

Over: BUTTERNUT BROOK

.5 MILE NORTH OF RTE.202, CT

Built 2016 Load: 47.6 t ADT: 1,108

CAVALRY ROAD

Good

Over: W BRANCH SAUGATUCK RV

0.7 MI WEST OF ROUTE 57, CT

Built 2022 Load: 47.6 t ADT: 715

BLACKS ROAD

Good

Over: HONEYPOT BROOK

0.8 MI E OF ROUTE 10, CT

Built 2014 Load: 47.6 t ADT: 1,458

INTERSTATE-91 NB

Good

Over: HAYDEN STATION ROAD

200 FEET NORTH OF EXIT 40, CT

Built 1992 Load: 47.7 t ADT: 39,400

VALLEY STREET #1

Good

Over: WEST RIVER

.4 MI WEST OF BLAKE ST, CT

Built 1983 Load: 47.9 t ADT: 11,500

SCOTLAND ROAD

Good

Over: HOCKANUM RIVER

0.3 MI SOUTH OF ROUTE 44, CT

Built 1985 Load: 47.9 t ADT: 13,640

BLACKS ROAD

Good

Over: QUINNIPIAC RIVER

1.2 MI E OF ROUTE 10, CT

Built 1987 Load: 47.9 t ADT: 1,453

COLUMBUS BOULEVARD

Good

Over: SR 598 (WHITEHEAD HWY)

0.5 MI S OF I-84 OVERPASS, CT

Built 2005 Load: 48.0 t ADT: 16,100

ROUTE 80

Good

Over: DEEP RIVER

1.1 MI W OF ROUTE 9, CT

Built 2021 Load: 48.0 t ADT: 6,100

DART HILL ROAD

Good

Over: HOCKANUM RIVER

1000 FT WEST OF ROUTE 83, CT

Built 2023 Load: 48.0 t ADT: 4,700

CHERRY HILL ROAD

Good

Over: COGINCHAUG RIVER

0.1 S OF ROUTE 157, CT

Built 2000 Load: 48.0 t ADT: 2,786

ROUTE 72

Good

Over: CAMP STREET

800 FT NORTH OF ROUTE 177, CT

Built 1980 Load: 48.0 t ADT: 10,700

WILMOT ROAD

Good

Over: WINTERGREEN BROOK

1 MI NORTH OF ROUTE 10, CT

Built 2017 Load: 48.0 t ADT: 737

JAMES STREET

Good

Over: SILVERMINE RIVER

0.2 MI SOUTH OF PERRY AVE, CT

Built 1956 Load: 48.0 t ADT: 10,300

BAILIWICK ROAD

Good

Over: BYRAM RIVER

RIVERSVILLE & BAILIWICK, CT

Built 1955 Load: 48.0 t ADT: 675

INTERSTATE-95

Good

Over: CAMPBELL AVENUE

1.2 MI S OF ROUTE 10, CT

Built 1956 Load: 48.3 t ADT: 105,300

RIVER STREET

Good

Over: HOCKANUM RIVER

AT JCT WEST MAIN STREET, CT

Built 2010 Load: 48.3 t ADT: 1,286

MILL STREET

Good

Over: GREAT BROOK

500 WEST OF GROVE STREET, CT

Built 2018 Load: 48.3 t ADT: 520

ROUTE 148

Good

Over: PATTACONK BROOK

0.5 MI W OF ROUTE 9, CT

Built 1939 Load: 48.3 t ADT: 5,000

US ROUTE 7

Good

Over: EDDYS COVE

.1 MI SOUTH OF JCT US 44, CT

Built 1989 Load: 48.3 t ADT: 6,200

GARFIELD STREET

Good

Over: MILL POND BROOK

450 FT EAST OF ROUTE 173, CT

Built 2008 Load: 48.3 t ADT: 3,121

MIDDLE BEACH ROAD

Good

Over: FENCE CREEK

0.4 MI E OF EAST WHARF RD, CT

Built 2002 Load: 48.4 t ADT: 1,050

Showing 3,651-3,700 of 4,365 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

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

What to do with this

Use Connecticut's inventory picture to drill to a county or a specific span.

  • Browse counties in Connecticut and open the highest-Poor shares first. County list
  • See where this state sits among peers on Poor-condition share. State rankings
  • Compare this state with another jurisdiction on the same measures. State compare

NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Connecticut Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.