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

EAST PEARL STREET

Fair

Over: E BRANCH NAUGATUCK RIVER

600 EAST OF MAIN STREET, CT

Built 1988 Load: 39.1 t ADT: 4,800

JAMES STREET

Fair

Over: INTERSTATE-95

0.4 MI N OF NEW YORK, CT

Built 1958 Load: 39.2 t ADT: 1,914

CHERRY HILL ROAD

Fair

Over: INTERSTATE-95

0.5 MI N OF US ROUTE 1, CT

Built 1958 Load: 39.2 t ADT: 1,125

U.S. ROUTE 6

Fair

Over: PEQUABUCK RIVER

JCT OF RT 6 & RT 72, CT

Built 1957 Load: 39.2 t ADT: 15,700

INTERSTATE 84 EB

Fair

Over: LONG MEADOW ROAD

1.3 MI E MDBRY-SOBRY TL, CT

Built 1964 Load: 39.2 t ADT: 36,900

SR 597 NORTHBOUND

Fair

Over: CANAL ST RAILS TO TRAILS

0.2 MI N OF ROUTE 10, CT

Built 1963 Load: 39.2 t ADT: 4,300

ROUTE 8 SOUTHBOUND

Fair

Over: ROUTE 262

1.3 MI NO OF WATERBURY TL, CT

Built 1964 Load: 39.2 t ADT: 15,100

INTERSTATE-95 SB

Fair

Over: COW HILL ROAD

0.8 MI SOUTH OF ROUTE 27, CT

Built 1964 Load: 39.2 t ADT: 26,100

US ROUTE 1

Fair

Over: PEQUOTSEPOS COVE

0.1 MI N OF ROUTE 27, CT

Built 1994 Load: 39.2 t ADT: 8,900

INTERSTATE-691 EB

Fair

Over: NOTCH ROAD

0.8 M E OF SOUTHINGTON, CT

Built 1971 Load: 39.2 t ADT: 35,000

I-84 RAMPS 181&184

Fair

Over: I-84 and I-84 Ramp 181

.6 MI E PLAINVILLE-N.B.TL, CT

Built 1969 Load: 39.2 t ADT: 3,900

US ROUTE 1+SR 722

Fair

Over: PEQUONNOCK RIVER

0.2 MI E OF ROUTE 8, CT

Built 1972 Load: 39.2 t ADT: 40,100

ROUTE 71

Fair

Over: HERALD SQ COLUMUS BL RR

NEAR LAQUINTA INN POLICE, CT

Built 1971 Load: 39.2 t ADT: 12,700

OLD GRASSY HILL RD

Fair

Over: WEPAWAUG RIVER

0.1 MI E OF ROUTE 121, CT

Built 1941 Load: 39.2 t ADT: 6,400

BUCKINGHAM DRIVE

Fair

Over: RIPPOWAM RIVER

375 FT E OF ROUTE 104, CT

Built 2005 Load: 39.2 t ADT: 2,090

PECK LANE

Fair

Over: INTERSTATE-691

0.7 MI WEST OF EXIT 3, CT

Built 1986 Load: 39.2 t ADT: 2,400

ROUTE 10

Fair

Over: WILLOW BROOK

3.4 MI N OF ROUTE 40, CT

Built 1991 Load: 39.2 t ADT: 15,300

SR 796 WESTBOUND

Fair

Over: WELLINGTON ROAD EXT.

2.5 MI N OF US ROUTE 1, CT

Built 1992 Load: 39.2 t ADT: 5,800

ROUTE 47

Fair

Over: SHEPAUG RIVER

0.1 MI SOUTH OF ROUTE 109, CT

Built 1950 Load: 39.3 t ADT: 3,300

SR 500N I-84 TR 8

Fair

Over: I-84 WB & I-84 RAMP 701

0.3 MI NORTH OF ROUTE 2, CT

Built 1964 Load: 39.3 t ADT: 4,000

ROUTE 156

Fair

Over: BLACK HALL RIVER

2.7 MI E OF I-95, CT

Built 1936 Load: 39.4 t ADT: 4,300

ROUTE 159

Fair

Over: WATER WORKS BROOK

200 FT NORTH WINDSOR TL., CT

Built 1988 Load: 39.4 t ADT: 2,700

INTERSTATE-95

Fair

Over: METRO NORTH RAILROAD

0.1 M S OF EX 35 I-95, CT

Built 1957 Load: 39.5 t ADT: 95,100

INTERSTATE-91

Fair

Over: SR 530 (AIRPORT ROAD)

.2 MI WEST OF BRAINARD RD, CT

Built 1964 Load: 39.5 t ADT: 107,800

ROUTE 9 SOUTHBOUND

Fair

Over: MATTABESSET RIVER

0.28 MI NORTH OF ROUTE 66, CT

Built 1960 Load: 39.5 t ADT: 34,600

CONGRESS STREET #1

Fair

Over: ROUTE 15

1.8 MI S OF ROUTE 58, CT

Built 1938 Load: 39.5 t ADT: 650

INTERSTATE-84 EB

Fair

Over: ABANDONED B&M RR

0.2 MI West of Exit 32, CT

Built 1963 Load: 39.5 t ADT: 40,800

SR 668 - BUTTS BRI

Fair

Over: QUINEBAUG RIVER

0.4 MI FROM ROUTE 169, CT

Built 1937 Load: 39.5 t ADT: 2,200

ROUTE 222

Fair

Over: NAUGATUCK RAILROAD CO.

ROUTE 222 OVER RAILROAD, CT

Built 1960 Load: 39.5 t ADT: 900

US ROUTE 6

Fair

Over: U.S. ROUTE 6 EXPRESSWAY

06 MI E OF JNCT RTE 66, CT

Built 1973 Load: 39.5 t ADT: 16,400

I-91 132 134 136

Fair

Over: STATE STREET

0.1 MI E OF ORANGE STREET, CT

Built 1965 Load: 39.5 t ADT: 20,800

ROUTE 40 NB

Fair

Over: US ROUTE 5

AT EXIT 1 NORTHBOUND, CT

Built 1972 Load: 39.5 t ADT: 10,100

ATTAWAUGAN CR ROAD

Fair

Over: INTERSTATE 395-SB

2 MI NORTH OF ROUTE 101, CT

Built 1968 Load: 39.5 t ADT: 8,800

ROUTE 8NB & TR806

Fair

Over: WARREN STREET

0.2 MI OFF EXIT 27A I-95, CT

Built 1969 Load: 39.5 t ADT: 21,500

ROUTE 8 NORTHBOUND

Fair

Over: GRAND STREET

1.6 MI N OF I-95, CT

Built 1969 Load: 39.5 t ADT: 52,100

U.S. ROUTE 7 NB &

Fair

Over: ROUTE 123

1.8 MILE NORTH OF I-95, CT

Built 1970 Load: 39.5 t ADT: 26,200

SOUTH MAIN STREET

Fair

Over: CANAL

1000 FT SOUTH OF ROUTE 14, CT

Built 1950 Load: 39.5 t ADT: 5,500

OLD STATE ROAD #3

Fair

Over: LITTLE RIVER

100 EAST OF JCT RT 67&42, CT

Built 2001 Load: 39.5 t ADT: 407

HIGHLAND AVE NO 1

Fair

Over: METRO NORTH RAILROAD

0.9 MI N OF ROUTE 136, CT

Built 1982 Load: 39.5 t ADT: 4,200

HILLS POINT ROAD

Fair

Over: METRO NORTH RAILROAD

100 FT S OF I-95, CT

Built 1900 Load: 39.5 t ADT: 4,350

INTERSTATE-91 SB

Fair

Over: LEIBERT ROAD

0.5 MILE SOUTH OF EXIT 33, CT

Built 1991 Load: 39.5 t ADT: 76,500

CHAPEL STREET

Fair

Over: MILL RIVER

500 EAST OF EAST STREET, CT

Built 1992 Load: 39.5 t ADT: 7,794

ROUTE 17 RAMP 007

Fair

Over: NEW LONDON TURNPIKE

0.26 MI S JCT ROUTE 17 SB, CT

Built 1952 Load: 39.6 t ADT: 3,100

ROUTE 8

Fair

Over: ROUTE 34 & RR Drive

ROUTE 8 EXIT 15, CT

Built 1951 Load: 39.6 t ADT: 73,300

EAST STREET SOUTH

Fair

Over: BANTAM RIVER

500 NO. OF RESERVOIR RD, CT

Built 1956 Load: 39.7 t ADT: 585

I84 TR836 &BIKEWAY

Fair

Over: HOCKANUM RIVER & BIKEWAY

.45M N OF EXIT 59 I-84 WB, CT

Built 1987 Load: 39.7 t ADT: 17,200

ROUTE 83

Fair

Over: SCANTIC RIVER

0.1 MI SOUTH OF MASS S.L., CT

Built 1927 Load: 39.8 t ADT: 2,900

ROUTE 216

Fair

Over: GREEN FALLS RIVER

1.0 MI E OF ROUTE 49, CT

Built 1965 Load: 39.8 t ADT: 900

WESTFIELD ROAD

Fair

Over: HARBOR BROOK

0.3 MI E OF US ROUTE 5, CT

Built 1938 Load: 39.8 t ADT: 2,700

CD WB ROADWAY

Fair

Over: I84 RAMP J(RT44 - I84WB)

1.2 MI E OF 84-384 SPLIT, CT

Built 1984 Load: 39.8 t ADT: 17,200

Showing 1,501-1,550 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.