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

Fair

Over: SR 728 (DERBY AVENUE)

.1 MI N OF EXIT 21 RTE 8N, CT

Built 1961 Load: 24.9 t ADT: 52,800

ROUTE 33

Fair

Over: NORWALK RIVER & MNRR

RT 7 & RT 33 @ RR STA, CT

Built 1940 Load: 24.9 t ADT: 12,100

US ROUTE 44

Fair

Over: FARMINGTON RIVER

0.2 MI. WEST OF CANTON TL, CT

Built 1958 Load: 24.9 t ADT: 10,200

SR 727

Fair

Over: NAUGATUCK RIVER & MNRR

0.2 MI W OF RT 115, CT

Built 1960 Load: 24.9 t ADT: 7,800

ROUTE 2 WESTBOUND

Fair

Over: QUARRY ROAD

.5 MILE WEST UP ROUTE 83, CT

Built 1961 Load: 24.9 t ADT: 22,700

SIGOURNEY STREET

Fair

Over: CENTRAL NEW ENGLAND RR

0.3 MI S OF US ROUTE 44, CT

Built 1912 Load: 24.9 t ADT: 7,600

BANK STREET

Fair

Over: NAUGATUCK RIVER

200 FT SOUTH W.LIBERTY ST, CT

Built 1956 Load: 24.9 t ADT: 7,800

ROUTE 25 NORTHBOUN

Fair

Over: PEQUONNOCK RIVER

0.7 MI NORTH OF ROUTE 15, CT

Built 1980 Load: 24.9 t ADT: 20,400

US ROUTE 44 WB

Fair

Over: I-91 NB C-D RDWY & RAMP

AT WEST END BULKELEY BRG, CT

Built 1960 Load: 24.9 t ADT: 10,100

COMSTOCK BRIDGE RD

Fair

Over: DICKERSON CREEK

0.8 MI N OF ROUTE 16, CT

Built 1978 Load: 25.1 t ADT: 520

I-95 RAMPS TO US 1

Fair

Over: INTERSTATE-95

EXIT 5, CT

Built 1958 Load: 25.3 t ADT: 9,200

ROUTE 14

Fair

Over: QUINNEBAUG RIVER

0.4 MI E OF ROUTE 169, CT

Built 1951 Load: 25.3 t ADT: 5,900

ROUTE 2 WESTBOUND

Fair

Over: WEST ROAD

2 MILES WEST OF ROUTE 66, CT

Built 1966 Load: 25.3 t ADT: 21,000

INTERSTATE-395 SB

Fair

Over: ROUTE 101

2.81 MI SO OF PUTNAM TL, CT

Built 1967 Load: 25.3 t ADT: 12,300

INTERSTATE-395 NB

Fair

Over: WILSONVILLE ROAD

.35 MI NORTH OF ROUTE 200, CT

Built 1967 Load: 25.3 t ADT: 10,200

INTERSTATE-395 SB

Fair

Over: WILSONVILLE ROAD

3.5 MI NORTH OF ROUTE 200, CT

Built 1967 Load: 25.3 t ADT: 9,500

NORTH BIGELOW ROAD

Fair

Over: LITTLE RIVER

650 FEET NORTH OLD RTE 6, CT

Built 1946 Load: 25.3 t ADT: 320

TWIN BRIDGE ROAD

Fair

Over: IRON STREAM

1.0 MI S OF ROUTE 80, CT

Built 1900 Load: 25.3 t ADT: 258

ROUTE 10

Fair

Over: INTERSTATE 691

I-691 EXIT 3, CT

Built 1984 Load: 25.3 t ADT: 14,700

I-84 EB HOV & WB R

Fair

Over: I-84 EB RTE 15 RAMP A

SILVER LA. ON & OFF RAMPS, CT

Built 1987 Load: 25.3 t ADT: 4,300

DUGAN ROAD

Fair

Over: KENT FALLS BROOK

0.5 MI E JUNC CARTER ROAD, CT

Built 1954 Load: 25.3 t ADT: 54

OLD RIDGEBURY ROAD

Fair

Over: I-84 & EXIT RAMPS

I-84 EXIT 2, CT

Built 1983 Load: 25.4 t ADT: 1,200

ROUTE 14A

Fair

Over: MOOSUP RIVER

2 MILES EAST OF ROUTE 49, CT

Built 1925 Load: 25.5 t ADT: 2,000

I-95 RAMP 093

Fair

Over: KOSSUTH STREET

I-95 SB ON-RAMP EXIT 28, CT

Built 2006 Load: 25.6 t ADT: 4,400

ROUTE 10

Fair

Over: WEST BRANCH SALMON BROOK

0.8 MI SOUTH OF ROUTE 20, CT

Built 1935 Load: 25.6 t ADT: 10,000

ROUTE 8 SOUTHBOUND

Fair

Over: PAN AM SO. RR SPUR LINE

BETWEEN EXITS 35 & 36, CT

Built 1964 Load: 25.6 t ADT: 27,050

POWDER MILL ROAD

Fair

Over: NEPAUG RIVER

0.3MI N OF TOWN BRIDGE RD, CT

Built 2000 Load: 25.6 t ADT: 70

ROUTE 30

Fair

Over: HOCKANUM RIVER

100 WEST OF ROUTE 83, CT

Built 1981 Load: 25.6 t ADT: 30,100

HAMMOND HILL ROAD

Fair

Over: LITTLE RIVER

0.5 MILES NORTH OF RTE 97, CT

Built 1941 Load: 25.6 t ADT: 204

ROUTE 263

Fair

Over: HIGHLAND LAKE OUTLET

0.3 MI. WEST OF ROUTE 44, CT

Built 1957 Load: 25.6 t ADT: 2,200

ROUTE 49

Fair

Over: PACHAUG RIVER

.6 MI NORTH OF ROUTE 138, CT

Built 1934 Load: 25.9 t ADT: 2,100

ROUTE 197

Fair

Over: QUINEBAUG RIVER

.2 MI WEST OF ROUTE 131, CT

Built 1931 Load: 25.9 t ADT: 2,500

I-84 RAMP 200

Fair

Over: I-84 RAMPS 199&202 BANK

EXIT 22 EB RT 84, CT

Built 1966 Load: 25.9 t ADT: 7,600

CHESTNUT HILL ROAD

Fair

Over: ROUTE 2

0.9 MI E OF ROUTE 354, CT

Built 1966 Load: 25.9 t ADT: 2,300

ROUTE 2A

Fair

Over: NECRR P&WRR & THAMES RV

1.0 MILE EAST OF JCT 32, CT

Built 1967 Load: 25.9 t ADT: 21,200

ROUTE 97

Fair

Over: ABANDONED CANAL

.1 MI NORTH OF ROUTE 207, CT

Built 1967 Load: 25.9 t ADT: 2,400

WIG HILL ROAD

Fair

Over: ROUTE 9

0.46 MI N OF MAIN ST UP, CT

Built 1968 Load: 25.9 t ADT: 250

INTERSTATE-384 WB

Fair

Over: BIRCH MOUNTAIN BROOK

0.1 MILE WEST OF EXIT 4, CT

Built 1970 Load: 25.9 t ADT: 19,350

CHAPEL STREET

Fair

Over: METRO NORTH

100 FT EAST OF STATE ST., CT

Built 1994 Load: 25.9 t ADT: 7,700

NOTCH ROAD

Fair

Over: DEP TRAIL ABANDONED RR

25 SOUTH OF RTE 6 & 44, CT

Built 1951 Load: 25.9 t ADT: 1,254

CHURCH HILL ROAD #

Fair

Over: ASPETUCK RIVER

.5 MI E OF ROUTE 58, CT

Built 1957 Load: 25.9 t ADT: 2,070

WAHNEE ROAD

Fair

Over: E BRANCH NAUGATUCK RIVER

.1 MI WEST OF NEWFIELD RD, CT

Built 1987 Load: 25.9 t ADT: 686

INTERSTATE-91 NB

Fair

Over: US5 RTE 15 & I-91 TR861

.54 MI NO OF SR 530, CT

Built 1990 Load: 25.9 t ADT: 53,900

ROUTE 309

Fair

Over: STRATTON BROOK

0.3 MILE WEST OF RTE. 167, CT

Built 1992 Load: 25.9 t ADT: 3,800

ROUTE 218

Fair

Over: BEAMANS BROOK

1.4 MILES W OF ROUTE 187, CT

Built 1992 Load: 25.9 t ADT: 22,700

US ROUTE 6

Fair

Over: PEQUABUCK RIVER

2000FT WEST OF RTE 10 INT, CT

Built 1993 Load: 25.9 t ADT: 22,900

KENNEDY ROAD

Fair

Over: AMTRAK RR & PARKING LOT

APPRX 1050 W/ROUTE 159, CT

Built 1987 Load: 26.1 t ADT: 800

SR 807

Fair

Over: NORTHFIELD BROOK

0.1 MI NORTH OF ROUTE 254, CT

Built 1956 Load: 26.2 t ADT: 11,800

INTERSTATE-91 NB

Fair

Over: ELM STREET

0.5 MILE SOUTH OF EXIT 25, CT

Built 1964 Load: 26.2 t ADT: 75,450

ROUTE 190

Fair

Over: FURNACE BROOK

0.25 MILE WEST OF RTE 19, CT

Built 1963 Load: 26.2 t ADT: 9,200

Showing 201-250 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.