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

REEDS GAP ROAD

Good

Over: FARM RIVER

0.5 MI S OF ROUTE 17, CT

Built 2010 Load: 34.0 t ADT: 300

TECHNOLOGY PARK DR

Good

Over: QUINEBAUG RIVER

400 FT W KENNEDY DR, CT

Built 2015 Load: 34.0 t ADT: 106

MANSFIELD DRIVE

Good

Over: FARM RIVER

1/4 mi. east of Route 17, CT

Built 2004 Load: 34.0 t ADT: 1,020

GULF STREET

Good

Over: GULF POND

0.8 MI S OF ROUTE 162, CT

Built 2006 Load: 34.2 t ADT: 5,182

SHARON STATION RD

Good

Over: WEBATUCK CREEK

.7 MI W. OF ROUTE 361, CT

Built 2000 Load: 34.2 t ADT: 713

U.S. ROUTE 6 WB

Good

Over: HOP RIVER TRAIL

.25 MI E OF JCT W RTE 66, CT

Built 1971 Load: 34.3 t ADT: 7,200

WATER STREET

Good

Over: HOUSATONIC RIVER

CANAAN-SALISBURY TOWNLINE, CT

Built 2016 Load: 34.3 t ADT: 280

ROUTE 156

Good

Over: EIGHT MILE RIVER

0.3 E OF ROUTE 82, CT

Built 1986 Load: 34.3 t ADT: 2,700

DISH MILL ROAD

Good

Over: PONSET BROOK

160 FT W OF ROUTE 81, CT

Built 1963 Load: 34.3 t ADT: 153

COBBLE ROAD

Good

Over: COBBLE BROOK

0.1 MI SOUTH JUNC US 7, CT

Built 2011 Load: 34.3 t ADT: 161

SHEAR SHOP ROAD

Good

Over: MASHEPAUG RIVER

0.2 mi North of Milton Rd, CT

Built 2008 Load: 34.3 t ADT: 100

OLD RTE 254-UPPER

Good

Over: NORTHFIELD BROOK

4.8 KM SW OF THOMASTON, CT

Built 1955 Load: 34.3 t ADT: 60

MAIN PARK ROAD

Good

Over: E.BRANCH NAUGATUCK RIVER

0.5 MI S OF NEWFIELD ROAD, CT

Built 1969 Load: 34.5 t ADT: 1

ROUTE 15

Good

Over: MILL RIVER

0.1 MI N OF SR 717, CT

Built 1943 Load: 34.7 t ADT: 72,300

ROUTE 72

Good

Over: MARSH BROOK

0.5 MILE NORTH OF ROUTE 6, CT

Built 2015 Load: 34.7 t ADT: 3,400

US ROUTE 1

Good

Over: PATTAGANSETT RIVER

0.6 MI S OF ROUTE 161, CT

Built 2017 Load: 34.7 t ADT: 7,300

MOSHER STREET

Good

Over: AMTRAK RAILROAD

0.4 MI E OF ROUTE 215, CT

Built 1936 Load: 34.7 t ADT: 3,680

WRIGHTS CROSSING R

Good

Over: MASHAMOQUET BROOK

.2 MI NORTH OF ROUTE 101, CT

Built 1999 Load: 34.7 t ADT: 643

INTERSTATE-95

Good

Over: NECK RIVER

0.9 MI S OF ROUTE 79, CT

Built 1957 Load: 35.0 t ADT: 72,100

INTERSTATE-91 SB

Good

Over: I-91 TR 801 & SR 724 EB

AT JCT OF RTE I 91 & I 95, CT

Built 1965 Load: 35.0 t ADT: 31,200

GIBSON HILL ROAD

Good

Over: QUANDUCK BROOK

100 SOUTH OF RIVER ROAD, CT

Built 1950 Load: 35.0 t ADT: 518

WILLOW ROAD

Good

Over: FARM RIVER

0.1 MI EAST OF RTE #100, CT

Built 1980 Load: 35.0 t ADT: 828

MATIANUCK AVENUE

Good

Over: I-291 RAMPS 001 & 002

100 FEET SOUTH OF RTE 218, CT

Built 1991 Load: 35.0 t ADT: 1,500

FLAT ROCK PLACE

Good

Over: WETLANDS

0.2 MI EAST OF ROUTE 153, CT

Built 1996 Load: 35.0 t ADT: 3,518

US ROUTE 44

Good

Over: ABINGTON BROOK

0.4 MILE EAST OF ROUTE 97, CT

Built 1942 Load: 35.2 t ADT: 6,600

ROUTE 195

Good

Over: SKUNGAMAUG RIVER

700 SOUTH OF I-84, CT

Built 2017 Load: 35.3 t ADT: 9,400

SR 500 TR 801

Good

Over: I-84 EB AND I-84 TR 833

NB ACCESS FROM ROUTE 2 WB, CT

Built 1964 Load: 35.3 t ADT: 3,900

PARK STREET

Good

Over: ABANDONED RAILROAD

AT INTERSECTION W/ NEW ST, CT

Built 1941 Load: 35.3 t ADT: 1,887

WEST MAIN STREET

Good

Over: HOCKANUM RIVER

500 FEET EAST OF SR 527, CT

Built 2014 Load: 35.3 t ADT: 697

US ROUTE 44

Good

Over: HOUSATONIC RIVER

INT US 44 & CT RTE 126, CT

Built 1990 Load: 35.3 t ADT: 4,300

ROUTE 305

Good

Over: INTERSTATE-91 SOUTHBOUND

AT EXIT 37, CT

Built 1990 Load: 35.3 t ADT: 16,700

SOUTH MAIN STREET

Good

Over: MOOSUP RIVER

2000 WEST OF ROUTE 14, CT

Built 1997 Load: 35.4 t ADT: 2,482

HANOVER ROAD

Good

Over: HOUSATONIC RAILROAD

JCT OF BLVD & HANOVER RD, CT

Built 1919 Load: 35.4 t ADT: 1,300

ROUTE 213

Good

Over: AMTRAK RAILROAD

1.0 MI S OF US ROUTE 1, CT

Built 1930 Load: 35.5 t ADT: 11,000

ASH CREEK BLVD

Good

Over: MNRR & CONST COMMENT WAY

0.2 MI SOUTH ROUTE 1, CT

Built 2010 Load: 35.5 t ADT: 4,373

SOCIETY ROAD

Good

Over: INTERSTATE 95

1.3 MILE S ROUTE 161, CT

Built 2015 Load: 35.6 t ADT: 2,800

ROUTE 190

Good

Over: MIDDLE RIVER

2 MI EAST OF ROUTE 30, CT

Built 1936 Load: 35.6 t ADT: 7,400

STILLWELL DRIVE

Good

Over: QUINNIPIAC RIVER

0.6 MI. SOUTH OF ROUTE 10, CT

Built 2013 Load: 35.6 t ADT: 2,000

BITGOOD ROAD

Good

Over: PACHAUG RIVER

1850 FT N OF ROUTE 138, CT

Built 2011 Load: 35.6 t ADT: 364

SCHOOL GROUND ROAD

Good

Over: NOTCH HILL BROOK

0.3 MI N. OF US ROUTE 1, CT

Built 1941 Load: 35.6 t ADT: 5,500

PORCHUCK ROAD

Good

Over: EAST BRANCH BYRAM RIVER

O/E BRANCH BYRAM RV, CT

Built 2009 Load: 35.6 t ADT: 790

FORD HILL ROAD

Good

Over: HOLLENBECK RIVER

165 FT W. OF ROUTE 43, CT

Built 1955 Load: 35.6 t ADT: 191

GOSHEN HILL ROAD #

Good

Over: BARTLETT BROOK

.7 MILES WEST OF RTE. 16, CT

Built 2003 Load: 35.6 t ADT: 775

INTERSTATE-91 NB

Good

Over: MDC SEWER PIPE

UNDER CHARTER OAK BRIDGE, CT

Built 1991 Load: 35.6 t ADT: 32,800

TOBACCO STREET

Good

Over: TEN MILE RIVER

1.75 WEST OF RTE 87, CT

Built 2010 Load: 35.6 t ADT: 850

ONEIDA DRIVE

Good

Over: SMITH COVE

0.25 MILE SOUTH OF I-95, CT

Built 2021 Load: 35.6 t ADT: 220

ROUTE 15

Good

Over: LANE STREET

1.2 MILE WEST OF ROUTE 10, CT

Built 1949 Load: 36.0 t ADT: 79,800

ROUTE 2 EASTBOUND

Good

Over: CAMP MOWEEN ROAD

1.2 MILES WEST OF EXIT 22, CT

Built 1970 Load: 36.0 t ADT: 11,900

VALLEY ROAD

Good

Over: HORSE TAVERN BROOK

1000 FT EAST OF ROUTE 59, CT

Built 2019 Load: 36.0 t ADT: 1,250

LATHROP ROAD

Good

Over: LATHROP BROOK

0.1MI SO OF I-395, CT

Built 2017 Load: 36.0 t ADT: 2,018

Showing 3,301-3,350 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.