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

EVERGREEN ROAD

Fair

Over: ROUTE 9

1.1 MI S OF JCT ROUTE I91, CT

Built 1967 Load: 33.6 t ADT: 4,700

GRISTMILL RD

Fair

Over: MOODUS RIVER

0.25 MI W OF ROUTE 149, CT

Built 1956 Load: 33.6 t ADT: 150

SOUTH ROAD

Fair

Over: ROCK BROOK

2.5 MILE SOUTH OF ROUTE 4, CT

Built 1985 Load: 33.6 t ADT: 437

HILLS POINT ROAD

Fair

Over: INTERSTATE-95

1.3 MI N. OF ROUTE 136, CT

Built 1958 Load: 33.7 t ADT: 4,100

PLAINS ROAD NO. 1

Fair

Over: INTERSTATE-95

0.9 MI S OF SR 796, CT

Built 1957 Load: 33.7 t ADT: 13,600

INTERSTATE-395

Fair

Over: SR 642 WEST TOWN STREET

0.5 MI N OF ROUTE 2 & 32, CT

Built 1958 Load: 33.7 t ADT: 35,300

INTERSTATE 84 EB

Fair

Over: US RTE 6 RTE 67 STREAM

INTERSTATE-84 EXIT 15, CT

Built 1963 Load: 33.7 t ADT: 30,900

ROUTE 102

Fair

Over: COOPER POND BROOK

JCT OF RTE 7 AND RTE 102, CT

Built 1958 Load: 33.7 t ADT: 5,200

INTERSTATE-91 NB

Fair

Over: PROVIDENCE& WORCESTER RR

0.1 MI N OF ROCKY HILL TL, CT

Built 1964 Load: 33.7 t ADT: 64,400

INTERSTATE-91 SB

Fair

Over: PROVIDENCE& WORCESTER RR

0.1 MI N OF ROCKY HILL TL, CT

Built 1964 Load: 33.7 t ADT: 65,600

COMMERCE STREET

Fair

Over: ROUTE 2

.77 MI N OF NEIPSIC EXIT9, CT

Built 1964 Load: 33.7 t ADT: 2,692

ROUTE 234

Fair

Over: INTERSTATE-95 NORTHBOUND

2 MILES NORTH OF ROUTE 27, CT

Built 1964 Load: 33.7 t ADT: 1,400

INTERSTATE-95 NB

Fair

Over: ROUTE 216

2.7 MI N OF ROUTE 49, CT

Built 1964 Load: 33.7 t ADT: 14,500

I-95 SB TR 822

Fair

Over: INTERSTATE-95 NB

I-95 SB EXIT NO. 87, CT

Built 1964 Load: 33.7 t ADT: 4,200

INTERSTATE-691

Fair

Over: AMTRAK YARD & STATE ST

1.9 MI WEST OF ROUTE 91, CT

Built 1970 Load: 33.7 t ADT: 75,500

ROUTE 9 NORTHBOUND

Fair

Over: NEDOBITY ROAD

2.9 MI N OF ROUTE 81, CT

Built 1965 Load: 33.7 t ADT: 17,100

ROUTE 8 NORTHBOUND

Fair

Over: NAUGATUCK RAILROAD CO.

0.4 MI N OF ROUTE 222, CT

Built 1966 Load: 33.7 t ADT: 11,800

PEARL STREET

Fair

Over: ROUTE 190

0.5 MILE WEST OF I-91, CT

Built 1966 Load: 33.7 t ADT: 3,812

LAFAYETTE SQUARE

Fair

Over: ROUTE 8

0.9 MI N OF I-95, CT

Built 1968 Load: 33.7 t ADT: 7,400

BANCROFT ROAD

Fair

Over: I-84 & BANCROFT BROOK

BETWEEN I-84 EXITS 11&12, CT

Built 1979 Load: 33.7 t ADT: 390

BALDWIN STREET #1

Fair

Over: I-84 RAMPS & LOCAL RDS

BETWEEN I84 EXIT 23 & 24, CT

Built 1978 Load: 33.7 t ADT: 13,400

ROUTE 175

Fair

Over: CTFASTRAK BUSWAY

.2 MI E OF NEW BRITAIN TL, CT

Built 2014 Load: 33.7 t ADT: 27,900

ROUTE 25 SOUTHBOUN

Fair

Over: PEQUONNOCK RIVER

0.7 MI S OF ROUTE 111, CT

Built 1979 Load: 33.7 t ADT: 17,300

ROUTE 15 TR 807

Fair

Over: PEQUONNOCK RIVER

ROUTE 15 SB EXIT 49, CT

Built 1980 Load: 33.7 t ADT: 7,200

MURPHY ROAD

Fair

Over: SUSQUETONSCUT BROOK

900 NORTH OF ROUTE 87, CT

Built 2001 Load: 33.7 t ADT: 1,550

NEW ROAD

Fair

Over: MILL RIVER

0.5 MI S OF SR 453, CT

Built 1935 Load: 33.7 t ADT: 1,125

US ROUTE 7

Fair

Over: NORWALK RIVER

BEFORE EXIT 3 - RTE 7 NB, CT

Built 1991 Load: 33.7 t ADT: 39,600

US ROUTE 44 EB

Fair

Over: JIM BROOK

0.9 MILE WEST OF RTE. 167, CT

Built 2004 Load: 33.7 t ADT: 26,800

MASON LANE

Fair

Over: STREAM

0.5 MI EAST OF BATTLE ST., CT

Built 2008 Load: 33.7 t ADT: 106

INTERSTATE-95

Fair

Over: KEELER AVENUE

1.0 MI N OF US ROUTE 1, CT

Built 1956 Load: 34.0 t ADT: 115,900

INTERSTATE 95

Fair

Over: BROAD STREET

0.2 MI N OF ROUTE 8, CT

Built 1959 Load: 34.0 t ADT: 102,700

I-95 & I-95 RAMP 1

Fair

Over: I-95 RAMPS 115 & 117

1.7 MI N OF ROUTE 130, CT

Built 1957 Load: 34.0 t ADT: 86,600

COMSTOCK HILL AVEN

Fair

Over: ROUTE 15

0.8 MI S OF US ROUTE 7, CT

Built 1938 Load: 34.0 t ADT: 1,500

GRUMMAN AVENUE

Fair

Over: ROUTE 15

1.39 MILES NORTH OF US 7, CT

Built 1938 Load: 34.0 t ADT: 3,000

POTTER SCHOOL ROAD

Fair

Over: INTERSTATE 84

.76 MI W OF ASHFORD TL., CT

Built 1960 Load: 34.0 t ADT: 1,173

ROUTE 47

Fair

Over: BEE BROOK

1 MILE SOUTH OF ROUTE 202, CT

Built 1959 Load: 34.0 t ADT: 1,900

ROUTE 57

Fair

Over: WEST BRANCH SAUGATUCK RI

250 FT N OF ROUTE 53, CT

Built 2015 Load: 34.0 t ADT: 6,200

ROUTE 63

Fair

Over: WEST RIVER

105 FT N OF ROUTE 10, CT

Built 1921 Load: 34.0 t ADT: 23,100

ROUTE 71A

Fair

Over: MATTABESSET RIVER

0.5 MILE N OF ROUTE 71, CT

Built 1935 Load: 34.0 t ADT: 7,100

INTERSTATE 84 WB

Fair

Over: US RTE 6 RTE 67 STREAM

I-84 WB EXIT NO. 15, CT

Built 1963 Load: 34.0 t ADT: 30,000

INTERSTATE-691 WB

Fair

Over: RESERVOIR AVE & STREAM

0.9 MI EAST OF RT 322, CT

Built 1971 Load: 34.0 t ADT: 35,200

ROUTE 8 NORTHBOUND

Fair

Over: FARMILL RV & BEARD SAWM

N OF ROUTE 8 EXIT 12, CT

Built 1975 Load: 34.0 t ADT: 32,300

ROUTE 8 SOUTHBOUND

Fair

Over: FARMILL RV & BEARD SAWM

N OF ROUTE 8 EXIT 12, CT

Built 1975 Load: 34.0 t ADT: 33,400

ROUTE 9 SOUTHBOUND

Fair

Over: NEDOBITY ROAD

2.9 MI N of RT 81, CT

Built 1965 Load: 34.0 t ADT: 18,300

INTERSTATE-84 WB

Fair

Over: RT 72 NB RR & RT 372

I-84/RT 72 INTERCHANGE 11, CT

Built 1969 Load: 34.0 t ADT: 41,500

ROUTE 372

Fair

Over: ROUTE 72

CORBIN AVE, CT

Built 1970 Load: 34.0 t ADT: 18,900

SOUTH ROAD

Fair

Over: ROUTE 9 SOUTHBOUND

SOUTH OF FARMINGTON STACK, CT

Built 1969 Load: 34.0 t ADT: 4,000

ROUTE 9 SOUTHBOUND

Fair

Over: SOUTH STREET

1/4 MILE NORTH BERLIN TL, CT

Built 1969 Load: 34.0 t ADT: 38,300

FLOOD ROAD

Fair

Over: DICKINSON CREEK

1.3 MILES EAST OF RTE 66, CT

Built 1950 Load: 34.0 t ADT: 200

STURGES ROAD

Fair

Over: MILL RIVER

JCT OF MILL HILL TERRACE, CT

Built 1935 Load: 34.0 t ADT: 4,140

Showing 1,051-1,100 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.