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

SUNSET HILL ROAD

Fair

Over: INTERSTATE-395

3.17 MI NORTH PUTNAM TL., CT

Built 1967 Load: 23.3 t ADT: 70

ROUTE 8 SOUTHBOUND

Fair

Over: PEQUONNOCK RIVER & TRAIL

1.8 MI S OF ROUTE 15, CT

Built 1971 Load: 23.3 t ADT: 28,600

US ROUTE 44

Fair

Over: I84 & RAMPS-RTE-I384RAMP

.6 MI E OF E. HARTFORD TL, CT

Built 1985 Load: 23.3 t ADT: 14,400

HIGH STREET

Fair

Over: INTERSTATE 84 & RAMPS

SO END OF BR CHAPEL ST SO, CT

Built 1988 Load: 23.3 t ADT: 3,900

BURNHAM STREET W.

Fair

Over: INTERSTATE-291

1.6 MI E OF ROUTE 30, CT

Built 1993 Load: 23.3 t ADT: 2,300

US ROUTE 5

Fair

Over: FRESHWATER BROOK

500 FT SOUTH OF RTE 220, CT

Built 1934 Load: 23.7 t ADT: 12,100

US ROUTE 44

Fair

Over: SPRUCE BROOK

50 EAST OF ROUTE 219, CT

Built 1941 Load: 23.7 t ADT: 10,700

ROUTE 75

Fair

Over: STONY BROOK

0.8 MI SOUTH OF ROUTE 168, CT

Built 1956 Load: 23.7 t ADT: 8,100

INTERSTATE 84 WEST

Fair

Over: HRRC & BOULEVARD ROAD

1.6 MI WEST OF SR 816, CT

Built 1962 Load: 23.7 t ADT: 38,400

ROUTE 15 NB

Fair

Over: INTERSTATE-91 & RAMP 145

2.8 MILES NORTH OF RTE 5, CT

Built 1964 Load: 23.7 t ADT: 37,100

INTERSTATE-91 NB

Fair

Over: MATTABESSET RIVER

475 FT S OF ROUTE 372, CT

Built 1965 Load: 23.7 t ADT: 55,300

I-95 SB TR 804

Fair

Over: I-95 RAMP & LOCAL AVEs

ROUTE 8 SB EXIT 1, CT

Built 2002 Load: 23.7 t ADT: 23,300

BYRAM ROAD

Fair

Over: METRO-NORTH RAILROAD

0.3 MI N I-95 EXIT NO. 2, CT

Built 1892 Load: 23.7 t ADT: 8,800

HOLLOW TREE RDG RD

Fair

Over: INTERSTATE 95

BETWEEN EXIT 9 AND 10, CT

Built 1958 Load: 24.0 t ADT: 5,175

US ROUTE 7

Fair

Over: NORWALK RIVER

200 NORTH TOPSTONE ROAD, CT

Built 1957 Load: 24.0 t ADT: 15,500

U.S. ROUTE 44

Fair

Over: SKUNGAMAUG RIVER

1MI EAST OF RT 31 MAIN ST, CT

Built 1928 Load: 24.0 t ADT: 8,300

INTERSTATE-91 SB

Fair

Over: MIDDLETOWN AVENUE

0.49 MI N OF SB OP RTE 99, CT

Built 1964 Load: 24.0 t ADT: 71,900

INTERSTATE-84 WB

Fair

Over: AMTRAK;LOCAL RDS;PARKING

0.8 MI N OF JCT SR 504 SB, CT

Built 1965 Load: 24.0 t ADT: 76,800

NORTH MOUNTAIN RD.

Fair

Over: I-84 WESTBOUND & RAMPS

At Exit 35 Westbound, CT

Built 1968 Load: 24.0 t ADT: 675

FERRY STREET

Fair

Over: QUINNIPIAC RIVER

1.2 MI SOUTH JCT I-91 NB, CT

Built 1940 Load: 24.0 t ADT: 5,500

MILL HILL ROAD

Fair

Over: METRO NORTH RAILROAD

100 FT N OF US TE 1, CT

Built 1982 Load: 24.0 t ADT: 4,200

SOUTH STREET

Fair

Over: LITTLE JACKS BROOK

250 SOUTH OF HIGH BR RD, CT

Built 1930 Load: 24.0 t ADT: 898

INTERSTATE 91 NB

Fair

Over: KENEY PARK RD& MEADOW BK

0.3 MILE NORTH OF EXIT 34, CT

Built 1988 Load: 24.0 t ADT: 67,000

U.S. ROUTE 1 SB

Fair

Over: INTERSTATE 95

300 W OF MEADOW BROOK RD, CT

Built 1958 Load: 24.3 t ADT: 11,800

ROUTE 15

Fair

Over: ROUTE 69 & WEST RIVER

.3MI NO OF RT 63 & 69 INT, CT

Built 1949 Load: 24.3 t ADT: 58,500

ROUTE 17

Fair

Over: LONG HILL BROOK

1.3 MI. N OF ROUTE 155, CT

Built 1958 Load: 24.3 t ADT: 13,800

ROUTE 17 SB

Fair

Over: EAST MAIN STREET

0.1 MI SOUTH OF EXIT 10, CT

Built 1949 Load: 24.3 t ADT: 6,800

ROUTE 67

Fair

Over: LITTLE RIVER

0.3 MI WEST OF ROUTE 8, CT

Built 1950 Load: 24.3 t ADT: 17,200

INTERSTATE-95 NB

Fair

Over: ROUTE 2

1 MILE WEST OF ROUTE 49, CT

Built 1964 Load: 24.3 t ADT: 13,600

US ROUTE 6 EB

Fair

Over: ABANDONED RAILROAD

0.1 MI E OF COLUMBIA T.L., CT

Built 1971 Load: 24.3 t ADT: 8,950

WILLOW STREET

Fair

Over: I91 RMPS 139&141 MILL RV

EXIT # 6 OFF I-91 NB, CT

Built 1965 Load: 24.3 t ADT: 3,600

OREGON ROAD

Fair

Over: QUINNIPIAC RIVER

ADJACENT TO ROUTE 70, CT

Built 1963 Load: 24.3 t ADT: 5,700

KIRBY BROOK ROAD

Fair

Over: KIRBY BROOK

0.2 MI W OF ROUTE 199, CT

Built 1956 Load: 24.3 t ADT: 20

FORBES STREET

Fair

Over: INTERSTATE-84

0.4 MILE NORTH OF SR 502, CT

Built 1985 Load: 24.3 t ADT: 6,972

I-84 & U.S. 44

Fair

Over: CONNECTICUT SOUTHERN RR

0.1 MILE WEST OF CT RIVER, CT

Built 1961 Load: 24.3 t ADT: 102,900

ROUTE 10

Fair

Over: SALMON BROOK

0.7 MILE NORTH OF RTE. 20, CT

Built 1942 Load: 24.4 t ADT: 7,800

ROUTE 15

Fair

Over: ROUTE 104

1.2 MI S OF ROUTE 137, CT

Built 1936 Load: 24.5 t ADT: 64,420

LOVERS LANE

Fair

Over: LOVERS LANE BROOK

0.2 MILE SOUTH OF ROUTE 4, CT

Built 1935 Load: 24.5 t ADT: 765

ROUTE 2

Fair

Over: MAPLE STREET

AT EXIT 5 C, CT

Built 1951 Load: 24.6 t ADT: 60,500

ROUTE 12

Fair

Over: SHETUCKET RIVER

AT ROUTE 2 OVERLAP, CT

Built 1954 Load: 24.6 t ADT: 14,600

NORTH STREET

Fair

Over: ROUTE 15

At Route 15 Exit 31, CT

Built 1937 Load: 24.6 t ADT: 7,200

ROUTE 132

Fair

Over: WEEKEEPEEMEE RIVER

1.5 MILES NO OF ROUTE 147, CT

Built 1934 Load: 24.6 t ADT: 1,800

SOUTH QUAKER LANE

Fair

Over: INTERSTATE-84

0.4 MILE SOUTH OF PARK RD, CT

Built 1965 Load: 24.6 t ADT: 8,900

RT 64 EB/I-84 RAMP

Fair

Over: INTERSTATE 84

.4 MI EAST OF RTE 63, CT

Built 1965 Load: 24.6 t ADT: 8,200

I-84 TR 814

Fair

Over: SR 536 (WOODFORD AVENUE)

RTE 72 NB RAMP TO 84 WB, CT

Built 1969 Load: 24.6 t ADT: 5,900

PROSPECT STREET

Fair

Over: INTERSTATE-384

0.5 MILE WEST OF ROUTE 83, CT

Built 1968 Load: 24.6 t ADT: 2,020

PIGEON HILL ROAD

Fair

Over: INTERSTATE 91

0.75 MI. NO. OF ROUTE 305, CT

Built 1989 Load: 24.6 t ADT: 2,500

ANN UCCELLO STREET

Fair

Over: INTERSTATE-84 & RAMPS

.24 MI W OF O-PASS RTE 44, CT

Built 1991 Load: 24.6 t ADT: 3,500

INTERSTATE-95

Fair

Over: NORWALK RV HENDRICKS AVE

BETWEEN EXITS 15 & 16, CT

Built 1957 Load: 24.9 t ADT: 128,600

INTERSTATE-95

Fair

Over: MOFFIT STREET

0.7 MI N OF ROUTE 113, CT

Built 1959 Load: 24.9 t ADT: 101,700

Showing 151-200 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.