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

US RTE 7 SB TR 801

Good

Over: PERRY AVENUE

US ROUTE 7 SB EXIT NO. 3, CT

Built 1990 Load: 36.0 t ADT: 2,900

INTERSTATE-95

Good

Over: NAUGATUCK AVENUE

ABUTS N END OF 00135, CT

Built 2016 Load: 36.0 t ADT: 88,400

ROUTE 4

Good

Over: BLOODY BROOK

2.3 MI E OF ROUTE 7 OVLP, CT

Built 2014 Load: 36.3 t ADT: 2,900

ROUTE 17

Good

Over: PISTIPAUG POND BROOK

2.4 MI N. OF ROUTE 22, CT

Built 2007 Load: 36.3 t ADT: 8,700

U.S. ROUTE 6

Good

Over: SOUTH BROOK

0.2 MI W OF ROUTE 64, CT

Built 1973 Load: 36.3 t ADT: 11,700

ROUTE 110

Good

Over: FREEMAN BROOK

0.4 MI S OF ROUTE 15, CT

Built 2016 Load: 36.3 t ADT: 10,700

ROUTE 40 SB

Good

Over: HARTFORD TURNPIKE

AT EXIT 1 RTE 40, CT

Built 1976 Load: 36.3 t ADT: 10,300

ROUTE 154

Good

Over: FALLS RIVER

0.6 MI S OF ROUTE 9, CT

Built 1982 Load: 36.3 t ADT: 5,800

WOOD CREEK ROAD

Good

Over: WEEKEEPEEMEE RIVER

0.2 MI EAST OF JUDGE LANE, CT

Built 1956 Load: 36.3 t ADT: 393

WESTFIELD ROAD

Good

Over: HARBOR BROOK

0.3 MI E OF US ROUTE 5, CT

Built 1999 Load: 36.5 t ADT: 2,600

ROUTE 53

Good

Over: SAUGATUCK RIVER

2.6 MI N OF ROUTE 107, CT

Built 2016 Load: 36.6 t ADT: 3,900

ROUTE 234

Good

Over: ANGUILLA BROOK

2.6 MI E OF I-95, CT

Built 2018 Load: 36.6 t ADT: 5,200

PECK LANE

Good

Over: TEN MILE RIVER

0.5 MI S OF I-691, CT

Built 1996 Load: 36.6 t ADT: 2,769

FARMINGTON AVENUE

Good

Over: MATTABESSET RIVER

500 FT FROM JCT ROUTE 372, CT

Built 2017 Load: 36.6 t ADT: 2,983

PECK ORCHARD ROAD

Good

Over: BROOK

0.8 MILE NORTH OF RTE 189, CT

Built 2018 Load: 36.6 t ADT: 452

ROUTE 15

Good

Over: PEQUONNOCK RIVER

0.3 MI N OF ROUTE 25, CT

Built 1935 Load: 36.6 t ADT: 67,000

SR 661

Good

Over: WILLIMANTIC RIVER NECRR

BETWEEN MAIN& PLEASANT ST, CT

Built 2000 Load: 36.7 t ADT: 15,400

HARBOR ROAD

Good

Over: MILL RIVER

500 FT SOUTH OF US RTE 1, CT

Built 1927 Load: 36.8 t ADT: 1,600

SCOTT ROAD

Good

Over: INTERSTATE-84

0.07 MILES SOUTH RTE 801, CT

Built 2018 Load: 36.9 t ADT: 15,800

ROUTE 4

Good

Over: ROARING BROOK

AT JCT ROUTE 167, CT

Built 2015 Load: 36.9 t ADT: 18,900

LOWER LANE

Good

Over: MATTABESSET RIVER

0.2 MI S OF ROUTE 372, CT

Built 1970 Load: 36.9 t ADT: 3,502

TIMES FARM ROAD

Good

Over: HOP RIVER

.29 MI EAST OF US ROUTE 6, CT

Built 1935 Load: 36.9 t ADT: 169

CHASE ROAD

Good

Over: FIVE MILE RIVER

.5 MI WEST OF E PUTNAM RD, CT

Built 2015 Load: 36.9 t ADT: 333

MARIOMI ROAD

Good

Over: SILVERMINE RIVER

300 EAST OF VALLEY ROAD, CT

Built 2013 Load: 36.9 t ADT: 800

MUSKET RIDGE ROAD

Good

Over: BALL POND BROOK

500 W OF WOOD CREEK ROAD, CT

Built 2010 Load: 36.9 t ADT: 80

MERIDIAN ST EXT

Good

Over: AMTRAK RAILROAD

0.4 MI WEST OF US ROUTE 1, CT

Built 1992 Load: 36.9 t ADT: 4,342

I-91 SB RAMP 204

Good

Over: I-91 SB TR 855

0.2 MI S OF ROUTE 218, CT

Built 1990 Load: 36.9 t ADT: 7,800

MERIDIAN RIDGE DR

Good

Over: STREAM

0.4 M W JUNC OLD HAWLEY R, CT

Built 2008 Load: 36.9 t ADT: 107

ROUTE 243

Good

Over: WEPAWAUG RIVER

0.3 MI W OF ROUTE 114, CT

Built 1993 Load: 37.1 t ADT: 5,000

ROUTE 138

Good

Over: PACHAUG RIVER

2.4 MI EAST OF ROUTE 164, CT

Built 1953 Load: 37.2 t ADT: 7,400

INTERSTATE-91 SB

Good

Over: POOL ROAD

0.4 MI N OF US ROUTE 5, CT

Built 1965 Load: 37.2 t ADT: 41,300

US ROUTE 5

Good

Over: ABANDONED RAILROAD

0.5 MI N OF I-691, CT

Built 1989 Load: 37.2 t ADT: 13,300

ROUTE 12

Good

Over: MOOSUP RIVER

.2 MILE SOUTH OF ROUTE 14, CT

Built 1993 Load: 37.2 t ADT: 6,300

CHURCH ST SOUTH #2

Good

Over: N HAVEN INTERLOCK AMTRAK

AT INT OF UNION AVE, CT

Built 2003 Load: 37.2 t ADT: 5,600

INTERSTATE-91 SB

Good

Over: US ROUTE 1

0.1 MI N OF I-95, CT

Built 2014 Load: 37.3 t ADT: 31,200

ROUTE 40 NB

Good

Over: HARTFORD TURNPIKE

AT EXIT 1 RTE 40, CT

Built 1976 Load: 37.3 t ADT: 20,400

SOUTH PARK AVENUE

Good

Over: MILL RIVER

150 FT W OF BUCK HILL RD, CT

Built 2020 Load: 37.3 t ADT: 2,130

CORBIN ROAD

Good

Over: FARM RIVER

210 FT E. OF ROUTE 100, CT

Built 1980 Load: 37.3 t ADT: 600

BRADLEY ROAD

Good

Over: WEST RIVER

100 FT E OF ROUTE 69, CT

Built 1999 Load: 37.3 t ADT: 3,890

INTERSTATE-95

Good

Over: HOUSATONIC RIVER

0.3 MI W OF I95 EX 34, CT

Built 2017 Load: 37.6 t ADT: 88,400

INTERSTATE-91 SB

Good

Over: INTERSTATE-95 RAMP 317

0.3 MI N OF I-95, CT

Built 2013 Load: 37.6 t ADT: 31,200

ROUTE 160

Good

Over: INTERSTATE-91 SOUTHBOUND

0.4 MILE EAST OF ROUTE 3, CT

Built 2019 Load: 37.6 t ADT: 9,400

ROUTE 160

Good

Over: INTERSTATE-91 NORTHBOUND

1.69 MI W OF RTE 99 JUNCT, CT

Built 2019 Load: 37.6 t ADT: 9,400

BEACH STREET

Good

Over: CSX RAILROAD

550 FT E OF ROUTE 103, CT

Built 1978 Load: 37.6 t ADT: 3,435

MILE CREEK ROAD

Good

Over: BLACKHALL RIVER

1 MI E. OF ROUTE 156, CT

Built 1955 Load: 37.6 t ADT: 2,162

BOULEVARD

Good

Over: TROUT BROOK

225W INT TROUT BROOK DR, CT

Built 1983 Load: 37.6 t ADT: 4,610

ROUTE 63

Good

Over: WOOSTER BROOK

0.1 MILE SOUTH OF I-84, CT

Built 2018 Load: 37.6 t ADT: 15,200

I-95 SB RAMPS M&P

Good

Over: EAST STREET & P&W RR

AT WEST END OF Q-BRIDGE, CT

Built 2016 Load: 37.8 t ADT: 22,310

LONG MEADOW ROAD

Good

Over: LONG MEADOW POND

OVER LONG MEADOW POND, CT

Built 2011 Load: 37.8 t ADT: 1,648

ROUTE 68

Good

Over: TEN MILE RIVER

1.0 MI W OF ROUTE 70, CT

Built 1987 Load: 37.8 t ADT: 6,700

Showing 3,351-3,400 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.