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

INTERSTATE-84 WB

Fair

Over: SUNSET AVENUE #1

.6 MI E OF SOUTHINGTON TL, CT

Built 1965 Load: 50.2 t ADT: 45,500

EAST STREET

Fair

Over: AMTRAK RAILROAD

.1MI SOUTH OF HUMPHREY ST, CT

Built 1906 Load: 50.2 t ADT: 5,300

US ROUTE 7 NB

Fair

Over: STILL RIVER

.55 MI S OF US 202 JCT., CT

Built 1975 Load: 50.2 t ADT: 14,900

LOUGHLIN ROAD

Fair

Over: EIGHT MILE BROOK

0.4 MI N OF ROUTE 34, CT

Built 1956 Load: 50.2 t ADT: 1,080

WESTWAY ROAD

Fair

Over: SASCO BROOK

WESTPORT - FAIRFIELD TL, CT

Built 1955 Load: 50.2 t ADT: 1,060

ROUTE 81

Fair

Over: INDIAN RIVER

2.25 MI N. OF I-95, CT

Built 1988 Load: 50.2 t ADT: 7,000

W-N TURNING RDWY

Fair

Over: I-84/91 RAMPS CSO RR

I-84 WB EXIT 51, CT

Built 1990 Load: 50.2 t ADT: 23,900

INTERSTATE-91 SB

Fair

Over: AMTRAK RAILROAD

0.3 MILE SOUTH OF EXIT 34, CT

Built 1991 Load: 50.2 t ADT: 63,500

I-91 SOUTHBOUND AN

Fair

Over: I-84 ACCESS RAMP 331

400 SOUTH OF FOUNDERS BR, CT

Built 1998 Load: 50.2 t ADT: 51,000

INTERSTATE-95

Fair

Over: DAVIS AVENUE

.4 MI EAST OF EX 3, CT

Built 1958 Load: 50.4 t ADT: 117,700

INTERSTATE-95

Fair

Over: GRASMERE AVENUE

0.1 MI N OF I-95 EXIT 23, CT

Built 1958 Load: 50.4 t ADT: 121,100

INTERSTATE-95

Fair

Over: EAST TOWN ROAD

0.6 MI N OF US ROUTE 1, CT

Built 1958 Load: 50.4 t ADT: 99,700

ROUTE 8 NORTHBOUND

Fair

Over: LAUREL HILL ROAD

0.6 MILE NORTH OF EXIT 43, CT

Built 1966 Load: 50.4 t ADT: 10,550

NOROTON AVENUE

Fair

Over: INTERSTATE 95

AT EXIT 10, CT

Built 1958 Load: 50.5 t ADT: 9,300

INTERSTATE-95

Fair

Over: CENTER STREET

I-95 AT EXIT 19, CT

Built 1958 Load: 50.5 t ADT: 104,300

INTERSTATE-95

Fair

Over: ROUTE 154

1.3 MI S OF ROUTE 9, CT

Built 1957 Load: 50.5 t ADT: 49,300

ROUTE 8 NORTHBOUND

Fair

Over: HUNTINGDON AVENUE

.4MI S OF WTRBY WTRTWN TL, CT

Built 1964 Load: 50.5 t ADT: 17,900

INTERSTATE 691 EAS

Fair

Over: BEE STREET

0.2 MI WEST OF I-91, CT

Built 1965 Load: 50.5 t ADT: 22,500

INTERSTATE-691 WB

Fair

Over: US ROUTE 5

I 691 WB OVER ROUTE 5, CT

Built 1971 Load: 50.5 t ADT: 32,800

ROUTE 9 NORTHBOUND

Fair

Over: CANDLEWOOD HILL RD & BRK

0.5 MI WEST OF ROUTE 154, CT

Built 1965 Load: 50.5 t ADT: 17,500

COLBURN ROAD

Fair

Over: FURNACE BROOK

100 FT FR JCT ROUTE 19, CT

Built 1961 Load: 50.5 t ADT: 607

SUCKER BROOK ROAD

Fair

Over: SUCKER BROOK SPILLWAY

ADJ SUCKER BROOK DAM, CT

Built 1966 Load: 50.5 t ADT: 370

FINDLEY ROAD

Fair

Over: EAST ASPETUCK RIVER

25 FT N OF US ROUTE 202, CT

Built 1956 Load: 50.5 t ADT: 250

DEMING ROAD

Fair

Over: WILLOW BROOK

0.6 MI W OF US ROUTE 5, CT

Built 1970 Load: 50.5 t ADT: 2,081

AUGUR ROAD

Fair

Over: FARM RIVER

200 FT W OF ROUTE 22, CT

Built 1933 Load: 50.5 t ADT: 2,300

I-84 TR 803

Fair

Over: I-84 WB RT 7 NB BEAVER B

US RT 7 SB TO I-84 EB, CT

Built 1960 Load: 50.6 t ADT: 8,000

ROUTE 156

Fair

Over: AMTRAK RAILROAD

5.4 MI E OF I-95, CT

Built 1957 Load: 50.6 t ADT: 2,600

ROUTE 9 SOUTHBOUND

Fair

Over: P&W RAILROAD

.2 MI NORTH OF RT 99, CT

Built 1967 Load: 50.6 t ADT: 33,400

ROUTE 8 NORTHBOUND

Fair

Over: PAN AM SO. RR SPUR LINE

0.2 MI N OF ROUTE 73, CT

Built 1964 Load: 50.7 t ADT: 26,300

ROUTE 157

Fair

Over: COGINCHAUG RIVER

AT MIDDLETOWN TOWN LINE, CT

Built 1936 Load: 50.7 t ADT: 2,600

INTERSTATE-95

Fair

Over: ROUTE 135

I-95 SB EXIT NO. 22, CT

Built 1958 Load: 50.8 t ADT: 115,100

PROSPECT AVENUE

Fair

Over: ROUTE 8

0.1 MI S OF ROUTE 110, CT

Built 1950 Load: 50.8 t ADT: 5,463

INTERSTATE-84

Fair

Over: GREAT PLAIN ROAD

BETWEEN EXITS 6 & 7, CT

Built 1960 Load: 50.8 t ADT: 126,900

ROUTE 8 NORTHBOUND

Fair

Over: PORTER STREET

1 MI SOUTH OF I-84 INTER., CT

Built 1965 Load: 50.8 t ADT: 25,500

CAMP STREET

Fair

Over: AMTRAK RAILROAD

300 FROM STATE STREET, CT

Built 1899 Load: 50.8 t ADT: 5,600

SEELEY ROAD

Fair

Over: NORWALK RIVER

EAST OF ROUTE 7, CT

Built 1955 Load: 50.8 t ADT: 947

RUGG BROOK ROAD

Fair

Over: MAD RIVER

250 SOUTH OF ROUTE 44, CT

Built 1956 Load: 50.8 t ADT: 135

NOYES AVENUE NO. 1

Fair

Over: AMTRAK RAILROAD

0.5 MI S OF US ROUTE 1, CT

Built 1987 Load: 50.8 t ADT: 673

US ROUTE 202

Fair

Over: NEPAUG RIVER

1.2 MILES EAST OF RTE 219, CT

Built 1989 Load: 50.8 t ADT: 10,000

ROUTE 15

Fair

Over: SR 796

0.8 MI N OF ROUTE 110, CT

Built 1940 Load: 50.9 t ADT: 76,900

FLANDERS ROAD

Fair

Over: INTERSTATE-95 SB

1.2 MI N OF ROUTE 117, CT

Built 1964 Load: 50.9 t ADT: 1,700

BOOM BRIDGE ROAD

Fair

Over: INTERSTATE-95

1.7 MI N OF ROUTE 49, CT

Built 1964 Load: 50.9 t ADT: 176

ROUTE 8 NORTHBOUND

Fair

Over: ROUTE 8 SB RAMP 126

ROUTE 8 NB EXIT NO. 2, CT

Built 1968 Load: 50.9 t ADT: 47,900

INDIAN FIELD ROAD

Fair

Over: METRO NORTH RAILROAD

NORTH OF I-95 EXIT NO. 4, CT

Built 1900 Load: 50.9 t ADT: 7,100

LONG HILL DRIVE

Fair

Over: CONN. SOUTHERN RAILROAD

100 FEET NORTH TOLLAND ST, CT

Built 1909 Load: 50.9 t ADT: 4,730

INTERSTATE-84 WB

Fair

Over: ROUTE 30 & 83 (OVERLAP)

0.6 MI WEST OF DOBSON RD, CT

Built 1982 Load: 50.9 t ADT: 47,700

INTERSTATE-95

Fair

Over: COMPO ROAD SOUTH

BETWEEN EXIT 17 AND 18, CT

Built 1957 Load: 51.0 t ADT: 110,000

RTE 103(MAPLE AVE)

Fair

Over: CSX RAILROAD

2.0 MI S OF ROUTE 22, CT

Built 1961 Load: 51.1 t ADT: 7,500

BLAKE STREET

Fair

Over: TOWN FARM BROOK

150 W. OF FARNHAM AVENUE, CT

Built 1939 Load: 51.1 t ADT: 7,000

INTERSTATE-95

Fair

Over: SOUND BEACH AVENUE

0.2 M EAST OF I95 EXIT 5, CT

Built 1958 Load: 51.2 t ADT: 121,100

Showing 2,251-2,300 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.