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

U.S. ROUTE 202

Fair

Over: E BRANCH NAUGATUCK RIVER

0.4 MILE WEST OF ROUTE 8, CT

Built 1957 Load: 48.5 t ADT: 15,900

INTERSTATE-95

Fair

Over: RITCH AVENUE

RITCH AV.5 MILE E OF EX.2, CT

Built 1958 Load: 48.6 t ADT: 111,200

US ROUTE 6 EB

Fair

Over: SR 695 WEST BOUND

.4 MI WEST OF R.I. S.L., CT

Built 1958 Load: 48.6 t ADT: 3,200

ROUTE 195

Fair

Over: NEW ENGLAND CENTRAL RR

0.1 MILE NORTH OF RTE. 32, CT

Built 1959 Load: 48.6 t ADT: 11,600

U.S. ROUTE 6 WB

Fair

Over: MANSFIELD CITY ROAD

1.28 MI E OF WINDHAM T L, CT

Built 1972 Load: 48.6 t ADT: 7,383

ROUTE 72 WB

Fair

Over: ROUTE 372

0.2 MILES EAST ROUTE 10, CT

Built 1975 Load: 48.6 t ADT: 28,000

INTERSTATE-91 NB

Fair

Over: ROUTE 150

I-91 EXIT NO. 14, CT

Built 1965 Load: 48.6 t ADT: 32,800

ROUTE 9 NORTHBOUND

Fair

Over: ROUTE 153 & ROUTE 154

3.1 MI S OF ROUTE 80, CT

Built 1966 Load: 48.6 t ADT: 14,700

ROUTE 145

Fair

Over: AMTRAK RAILROAD

0.2 MI N OF US ROUTE 1, CT

Built 1977 Load: 48.6 t ADT: 4,300

BLACK BRIDGE ROAD

Fair

Over: W BR FARMINGTON RIVER

BETWEEN RTE 44 & RTE 219, CT

Built 1999 Load: 48.6 t ADT: 121

RIVER ROAD

Fair

Over: POMPERAUG RIVER

NEAR I-84 EXIT 13, CT

Built 1962 Load: 48.6 t ADT: 2,000

MINER STREET

Fair

Over: FALL BROOK

0.7 MI W OF ROUTE 217, CT

Built 1978 Load: 48.6 t ADT: 1,435

ROUTE 319

Fair

Over: MIDDLE RIVER

0.7 MI EAST OF ROUTE 190, CT

Built 1983 Load: 48.6 t ADT: 3,500

HANOVER STREET

Fair

Over: HARBOR BROOK

660 FT E OF COE AVE, CT

Built 1930 Load: 48.6 t ADT: 6,700

ROUTE 17

Fair

Over: CARR BROOK

1.6 MI N OF ROUTE 66, CT

Built 1938 Load: 48.6 t ADT: 3,200

ROUTE 3 SOUTHBOUND

Fair

Over: INTERSTATE-91 & TR804

ROUTE 3 SB OVER I-91, CT

Built 1994 Load: 48.6 t ADT: 23,000

WEST MOUNTAIN RD

Fair

Over: CHERRY BROOK

100 FT WEST OF ROUTE 179, CT

Built 1956 Load: 48.8 t ADT: 875

MILLER POND ROAD

Fair

Over: INTERSTATE-395

1.8 MI N OF ROUTE 85, CT

Built 1957 Load: 48.9 t ADT: 138

ROUTE 138

Fair

Over: INTERSTATE-395

0.3 MI EAST OF ROUTE 164, CT

Built 1958 Load: 48.9 t ADT: 7,200

U.S. ROUTE 5

Fair

Over: HOCKANUM RIVER

0.2 MILE NORTH OF RTE 15, CT

Built 1941 Load: 48.9 t ADT: 21,000

ROUTE 12

Fair

Over: FRENCH RIVER

1.5 MILES N OF ROUTE 200, CT

Built 1937 Load: 48.9 t ADT: 4,000

INTERSTATE-691 EB

Fair

Over: INTERSTATE-691 TR 802

ROUTE 691 OVER TR 802, CT

Built 1965 Load: 48.9 t ADT: 23,250

ROUTE 8 NORTHBOUND

Fair

Over: FIFTH STREET

0.9 MILES SOUTH OF I-84, CT

Built 1965 Load: 48.9 t ADT: 25,400

INTERSTATE-395 SB

Fair

Over: PROV & WORC RAILROAD

North of Tracy Road, CT

Built 1968 Load: 48.9 t ADT: 16,700

TRIANGLE STREET

Fair

Over: METRO-NORTH RAILROAD

990FT N OF ROUTE 136, CT

Built 1967 Load: 48.9 t ADT: 4,538

HOWARD AVENUE

Fair

Over: METRO NORTH RAILROAD

1.0 MILE NORTH OF I 95, CT

Built 1920 Load: 48.9 t ADT: 7,100

PONUS RIDGE ROAD

Fair

Over: COLLINS POND

500NORTH OF CLEARVIEW LA, CT

Built 1957 Load: 48.9 t ADT: 1,590

INTERSTATE-95

Fair

Over: BPORT HARBOR RT 130 MNRR

I-95 EXIT 27 - EXIT 28, CT

Built 1959 Load: 49.0 t ADT: 127,900

US ROUTE 6

Fair

Over: QUINEBAUG RIVER

.1 MILE WEST OF ROUTE 12, CT

Built 1957 Load: 49.0 t ADT: 17,500

ROUTE 34

Fair

Over: EIGHT MILE BROOK

2 MILES WEST OF RTE 188, CT

Built 1924 Load: 49.0 t ADT: 9,800

ROUTE 75

Fair

Over: FARMINGTON RIVER

1.13 MI S OF WNDSR LKS TL, CT

Built 1953 Load: 49.0 t ADT: 9,000

ROUTE 112

Fair

Over: SALMON CREEK

INTERSECT WHITE HOLLOW RD, CT

Built 1958 Load: 49.0 t ADT: 3,300

ROUTE 8 NORTHBOUND

Fair

Over: REYNOLDS BRIDGE ROAD

0.1 MI NORTH WATERTOWN TL, CT

Built 1964 Load: 49.0 t ADT: 16,900

INTERSTATE-91 SB

Fair

Over: ROUTE 150

I-91 EXIT NO. 14, CT

Built 1965 Load: 49.0 t ADT: 32,700

TAINTOR STREET

Fair

Over: STONY BROOK

1.0 MILE SOUTH OF SR 526, CT

Built 2001 Load: 49.0 t ADT: 505

WELLS ROAD

Fair

Over: EAST BRANCH SALMON BROOK

0.6 Mi N of Route 189, CT

Built 1956 Load: 49.0 t ADT: 1,985

FRENCH STREET

Fair

Over: STEELE BROOK

500 FEET EAST OF ROUTE 63, CT

Built 1983 Load: 49.0 t ADT: 5,199

JACKSON STREET #1

Fair

Over: P & W RAILROAD

0.1 MI N OF ROUTE 66, CT

Built 1936 Load: 49.0 t ADT: 56

FALLS AVENUE

Fair

Over: STEELE BROOK

200 NORTH OF ROUTE 73, CT

Built 1940 Load: 49.0 t ADT: 4,300

SR 565

Fair

Over: RATTLESNAKE BROOK

0.5 MILE EAST OF RTE. 179, CT

Built 1993 Load: 49.0 t ADT: 6,600

ROUTE 3

Fair

Over: GREAT MEADOW RD & CT RV.

.22MI N OF ACCESS TO I-91, CT

Built 1959 Load: 49.1 t ADT: 55,100

DRAIN STREET

Fair

Over: LITTLE RIVER

500 FEET FROM JCT ROUTE 6, CT

Built 1970 Load: 49.1 t ADT: 193

INTERSTATE-95

Fair

Over: BOSTWICK AVE

0.3 MI N OF ROUTE 130, CT

Built 2006 Load: 49.2 t ADT: 129,100

INTERSTATE-95

Fair

Over: ROUTE 121

0.8 MI S OF US ROUTE 1, CT

Built 1958 Load: 49.2 t ADT: 113,500

I-84 EASTBOUND

Fair

Over: HOUSATONIC RIVER

OVER HOUSATONIC RIVER, CT

Built 1953 Load: 49.2 t ADT: 76,300

ROUTE 149

Fair

Over: JEREMY RIVER

0.9 MI S OF ROUTE 2, CT

Built 1999 Load: 49.2 t ADT: 5,100

ROUTE 173

Fair

Over: AMTRAK RAILROAD & BUSWAY

1.5 MILES NORTH ROUTE 175, CT

Built 1938 Load: 49.2 t ADT: 17,100

ROUTE 272

Fair

Over: W.BRANCH NAUGATUCK RIVER

2.6 MILES NORTH OF RTE. 4, CT

Built 1954 Load: 49.2 t ADT: 2,200

US ROUTE 7 NB

Fair

Over: US ROUTE 202

AT RTE. 7 FEDERAL RD EXIT, CT

Built 1975 Load: 49.2 t ADT: 10,000

ROUTE 108

Fair

Over: ROUTE 15

ROUTE 15 EXIT NO. 51, CT

Built 1983 Load: 49.2 t ADT: 8,100

Showing 2,151-2,200 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.