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

ROUTE 8 NORTHBOUND

Good

Over: SR 711 (HUNTINGTON TPKE)

0.7 MI S OF ROUTE 108, CT

Built 1982 Load: 45.0 t ADT: 32,900

I-84 EB EXIT 25 RA

Good

Over: MAD RIVER

INTERSCT HARPERS FERRY RD, CT

Built 2018 Load: 45.0 t ADT: 5,500

INTERSTATE-95

Good

Over: ROUTE 100

0.6 MI N OF US ROUTE 1, CT

Built 1958 Load: 45.2 t ADT: 76,400

ROUTE 43

Good

Over: HOLLENBECK RIVER

.388 MI NORTH OF JCT 128, CT

Built 1989 Load: 45.2 t ADT: 400

MILL PLAIN ROAD

Good

Over: MILL RIVER

2.0 MI N OF I-95, CT

Built 2011 Load: 45.3 t ADT: 8,800

INTERSTATE-95

Good

Over: SR 740 (CEDAR STREET)

0.2 MI N OF US ROUTE 1, CT

Built 1958 Load: 45.4 t ADT: 62,500

ROUTE 58

Good

Over: ASPETUCK RIVER

0.4 MI N OF ROUTE 136, CT

Built 1947 Load: 45.4 t ADT: 4,600

INTERSTATE-395 NB

Good

Over: EAST FRANKLIN STREET

0.2 MI NORTH OF US RTE 6, CT

Built 1963 Load: 45.4 t ADT: 12,100

RUBBER AVENUE

Good

Over: LONG MEADOW POND BROOK

AT EDWARDS STREET, CT

Built 2010 Load: 45.4 t ADT: 10,900

MARION AVENUE

Good

Over: EIGHT MILE RIVER

475 FT E OF I-84, CT

Built 1979 Load: 45.4 t ADT: 12,400

NORTON ROAD

Good

Over: AMTRAK RAILROAD

300 FT EAST KENSINGTON RD, CT

Built 1979 Load: 45.4 t ADT: 5,300

SMOKEY HOLLOW ROAD

Good

Over: BANTAM RIVER

1 MI NORTH OF ROUTE 109, CT

Built 1956 Load: 45.4 t ADT: 247

ROUTE 70

Good

Over: QUINNIPIAC RIVER

1 MILE WEST OF RTE 71 JCT, CT

Built 1988 Load: 45.4 t ADT: 8,200

ROUTE 114

Good

Over: WEPAWAUG RIVER

0.3 MI N OF ROUTE 243, CT

Built 1936 Load: 45.4 t ADT: 7,200

RANDI DRIVE

Good

Over: HUZZLE GUZZLE BROOK

0.2 MI E OF ROUTE 79, CT

Built 1986 Load: 45.4 t ADT: 153

INTERSTATE-291 TR

Good

Over: ROUTE 218 & BRIARWOOD DR

RAMP FROM 291 WB TO 91 NB, CT

Built 1993 Load: 45.4 t ADT: 14,500

ENTRANCE TO MGM GA

Good

Over: UNNAMED STREAM

MASHANTUCKET PEQUOT RESER, CT

Built 2006 Load: 45.4 t ADT: 100

ROUTE 97

Good

Over: BYRON BROOK

1.5 MI SOUTH OF ROUTE 207, CT

Built 2012 Load: 45.6 t ADT: 5,100

ROUTE 17

Good

Over: HUBBARD STREET

1.14 MI SOUTH OF WB RTE 2, CT

Built 1953 Load: 45.7 t ADT: 13,000

ROUTE 2 WESTBOUND

Good

Over: I-84EB I-84TR 831 & 833

0.09 MI E OF OP I-84 EB, CT

Built 1964 Load: 45.7 t ADT: 8,400

STANTON HILL RD EX

Good

Over: YANTIC RIVER

75 FT N OF GILMAN ROAD, CT

Built 1963 Load: 45.7 t ADT: 400

ROUTE 163

Good

Over: OXOBOXO BROOK

1.6 MILES NORTH OF I-395, CT

Built 1993 Load: 45.7 t ADT: 5,600

I-84 EB EXIT 23 ON

Good

Over: I-84 EB EXIT 25 OFF RAMP

AT INTER WITH ROUTE 69, CT

Built 2018 Load: 45.7 t ADT: 8,200

INTERSTATE-95

Good

Over: SR 794 WESTBOUND

1.0 MI W OF US ROUTE 1, CT

Built 1958 Load: 45.8 t ADT: 74,800

US ROUTE 6

Good

Over: BLACKWELL BROOK

1 MILE WEST OF ROUTE 169, CT

Built 1985 Load: 45.9 t ADT: 9,100

WILLARD AVENUE

Good

Over: INTERSTATE-95

2.0 MI N OF ROUTE 145, CT

Built 1958 Load: 46.0 t ADT: 2,480

US ROUTE 1

Good

Over: BRANFORD RIVER

0.5 MI S OF I-95, CT

Built 1958 Load: 46.0 t ADT: 14,400

ROUTE 4

Good

Over: FARMINGTON RIVER

.2 MI WEST JCT ROUTE 10, CT

Built 1955 Load: 46.0 t ADT: 23,900

ROUTE 9 SOUTHBOUND

Good

Over: ROUTE 372

0.15 MI W OF US ROUTE 5, CT

Built 1962 Load: 46.0 t ADT: 29,400

ROUTE 349 SB

Good

Over: AMTRAK RAILROAD

0.9 MI S OF I-95, CT

Built 1966 Load: 46.0 t ADT: 8,300

ROUTE 349 NB

Good

Over: AMTRAK RAILROAD

1 MILE S OF INTERSTATE-95, CT

Built 1966 Load: 46.0 t ADT: 7,900

ROUTE 8 SOUTHBOUND

Good

Over: CAPITOL AVENUE

2.4 MI N. OF I-95, CT

Built 1972 Load: 46.0 t ADT: 46,600

ROUTE 8 NORTHBOUND

Good

Over: CAPITOL AVENUE

2.4 MILES NORTH OF I-95, CT

Built 1972 Load: 46.0 t ADT: 44,500

DODGE AVENUE

Good

Over: TUTTLE BROOK

0.5 MI W OF HEMINGWAY AVE, CT

Built 2010 Load: 46.0 t ADT: 3,100

SKIFF STREET

Good

Over: MILL RIVER

0.4 MI E OF ROUTE 10, CT

Built 1931 Load: 46.0 t ADT: 24,000

TUTTLE AVENUE

Good

Over: MILL RIVER

0.2 MI EAST OF ROUTE 10, CT

Built 1920 Load: 46.0 t ADT: 974

US ROUTE 1

Good

Over: LATIMER BROOK

0.1 MI N OF ROUTE 161, CT

Built 1984 Load: 46.0 t ADT: 14,700

KNIFE SHOP ROAD

Good

Over: NORTHFIELD POND BROOK

200 NORTH OF RT 254, CT

Built 2007 Load: 46.0 t ADT: 800

DISCOVERY DRIVE

Good

Over: SALAMANDER BROOK

SOUTH OF ROUTE 44 INTER., CT

Built 2015 Load: 46.0 t ADT: 3,800

DIVISION STREET

Good

Over: MAD RIVER

ADJ TO ROUTE 44, CT

Built 1956 Load: 46.2 t ADT: 1,364

INTERSTATE-95

Good

Over: ROUTE 10

1.5 MILES SOUTH OF I-91, CT

Built 1957 Load: 46.3 t ADT: 113,800

INTERSTATE-95

Good

Over: LAUREL STREET

0.1 MI S OF ROUTE 100, CT

Built 1958 Load: 46.3 t ADT: 76,400

ROUTE 72 SB

Good

Over: ROUTE 10

1.5 MI WEST OF I-84, CT

Built 1975 Load: 46.3 t ADT: 26,800

WEST MIDDLE TPKE.

Good

Over: BIGELOW BROOK

1 MILE EAST OF JCT US 44, CT

Built 1975 Load: 46.3 t ADT: 13,300

NORTH POND STREET

Good

Over: PAN AM RAILROAD

NEAR CURTISS STREET, CT

Built 1924 Load: 46.3 t ADT: 3,675

DAY STREET

Good

Over: BLADENS RIVER

0.2 MILE EAST OF ROUTE 67, CT

Built 2009 Load: 46.3 t ADT: 2,689

PARKER BRIDGE ROAD

Good

Over: HOP RIVER

3500FT FR JCT BUNKER HILL, CT

Built 2008 Load: 46.3 t ADT: 475

WOODSTOCK AVE #1

Good

Over: LITTLE RIVER

1050SOUTH OF ROUTE 171, CT

Built 2020 Load: 46.3 t ADT: 1,452

BEAR HILL ROAD

Good

Over: BLADEN RIVER

660 FT N OF ROUTE 67, CT

Built 1999 Load: 46.3 t ADT: 396

BARNES HILL ROAD

Good

Over: BURLINGTON BROOK

100 FT NORTH OF ROUTE 4, CT

Built 1956 Load: 46.3 t ADT: 261

Showing 3,601-3,650 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.