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

CORAM AVENUE

Fair

Over: ROUTE 8

300 FT S OF ROUTE 110, CT

Built 1950 Load: 43.9 t ADT: 5,000

MINOR ROAD

Fair

Over: LEADMINE BROOK

4.8 KM N OF THOMASTON, CT

Built 1939 Load: 44.0 t ADT: 50

INTERSTATE 95

Fair

Over: MYRTLE AVENUE NO. 1

150 FT S OF ROUTE 8, CT

Built 1958 Load: 44.1 t ADT: 107,100

ROUTE 2 EASTBOUND

Fair

Over: ENSIGN STREET

.5 MILE EAST OF EXIT 5, CT

Built 1962 Load: 44.1 t ADT: 33,850

ROBERTS STREET

Fair

Over: ROUTE 9

1.7 MI SOUTH OF ROUTE 66, CT

Built 1958 Load: 44.1 t ADT: 258

SR 608

Fair

Over: YANTIC RIVER

1.49 MI EAST OF BOZRAH TL, CT

Built 1941 Load: 44.1 t ADT: 1,200

MAYFLOWER STREET

Fair

Over: INTERSTATE-84

BETWEEN EXITS 41 & 43 I84, CT

Built 1965 Load: 44.1 t ADT: 3,000

I-84 WB & TR 827

Fair

Over: EAST RIVER DRIVE

0.4 MILE E OF HARTFORD TL, CT

Built 1964 Load: 44.1 t ADT: 53,800

ROUTE 9 NORTHBOUND

Fair

Over: TURKEY HILL ROAD

0.6 MI N OF ROUTE 82, CT

Built 1967 Load: 44.1 t ADT: 15,600

ROUTE 9 SOUTHBOUND

Fair

Over: ROUTE 148 (WEST MAIN ST)

ROUTE 9 EXIT NO. 6, CT

Built 1967 Load: 44.1 t ADT: 15,000

ROUTE 85

Fair

Over: INTERSTATE-384

0.5 MI SOUTH OF ROUTE 44, CT

Built 1968 Load: 44.1 t ADT: 4,800

OLD CATHOLE ROAD

Fair

Over: INTERSTATE 84

0.6 MILE SOUTH OF RTE 74, CT

Built 1978 Load: 44.1 t ADT: 1,700

STERLING HILL ROAD

Fair

Over: EKONK BROOK

575 FT EAST OF GENDRON RD, CT

Built 2012 Load: 44.1 t ADT: 1,358

POVERTY HOLLOW RD.

Fair

Over: ASPETUCK RIVER

OFF MEEKER HILL RD, CT

Built 1984 Load: 44.1 t ADT: 1,710

I-384 RAMP 003

Fair

Over: I-384 TR 801

115EAST OF E HARTFORD TL, CT

Built 1987 Load: 44.1 t ADT: 3,700

US ROUTE 5 NB

Fair

Over: ROUTE 15

1.2 MILES NORTH OF I-691, CT

Built 1946 Load: 44.1 t ADT: 8,500

INTERSTATE-291 WB

Fair

Over: I-84 AND I-84 RAMP 305

.5(E)OF OVERPASS ROUTE 44, CT

Built 1994 Load: 44.1 t ADT: 10,000

JOHN STREET

Fair

Over: EAST BRANCH BYRAM RIVER

1 MILE W ROUND HILL RD, CT

Built 2013 Load: 44.1 t ADT: 1,725

LIBERTY STREET #1

Fair

Over: AMTRAK RAILROAD

0.2 MI N OF US ROUTE 1, CT

Built 1992 Load: 44.2 t ADT: 2,900

INTERSTATE 95

Fair

Over: YELLOW MILL POND&RTE 130

INTERSTATE 95 EXIT 29, CT

Built 1958 Load: 44.4 t ADT: 117,900

INTERSTATE-395

Fair

Over: ROUTE 201

1.8 MI NORTH OF ROUTE 138, CT

Built 1958 Load: 44.4 t ADT: 28,400

ROUTE 361

Fair

Over: MUDGE POND BROOK

INTR SILVER LAKE SHORE RD, CT

Built 1957 Load: 44.4 t ADT: 1,200

ROUTE 171

Fair

Over: INTERSTATE-84

0.5 MI FR MASS STATE LINE, CT

Built 1954 Load: 44.4 t ADT: 1,800

ROUTE 58

Fair

Over: SAMP MORTAR RESERVOIR

50 SOUTH OF ARROWHEAD LA, CT

Built 1941 Load: 44.4 t ADT: 15,700

INTERSTATE 84

Fair

Over: STARR AVENUE

0.3 MI WEST ROUTE 39, CT

Built 1962 Load: 44.4 t ADT: 108,000

INTERSTATE 91

Fair

Over: WETHERSFIELD COVE

.4 MI. S HARTFORD TOWN LN, CT

Built 1964 Load: 44.4 t ADT: 123,800

ROUTE 179

Fair

Over: NEDS BROOK

0.2 MILE NORTH OF SR 565, CT

Built 1958 Load: 44.4 t ADT: 6,300

ROUTE 8 NORTHBOUND

Fair

Over: HILL STREET

0.3 MI SOUTH OF ROUTE 202, CT

Built 1966 Load: 44.4 t ADT: 12,400

ROUTE 8 SOUTHBOUND

Fair

Over: WINTHROP STREET

400 FEET NORTH OF EXIT 44, CT

Built 1964 Load: 44.4 t ADT: 8,800

INTERSTATE-691 EB

Fair

Over: ROUTE 15

02 MI WEST EXIT ROUTE 15, CT

Built 1965 Load: 44.4 t ADT: 23,300

I-91 TR 808 & SR 7

Fair

Over: POND HILL ROAD

0.7 MI WEST OF I91, CT

Built 1965 Load: 44.4 t ADT: 7,600

ROUTE 8 & ON RAMP

Fair

Over: STREAMING GROUND BROOK

0.7 MI S OF ROUTE 110, CT

Built 1950 Load: 44.4 t ADT: 60,200

ROUTE 8 SOUTHBOUND

Fair

Over: U.S. ROUTE 6 EASTBOUND

0.2 MILE SOUTH OF EXIT 38, CT

Built 1966 Load: 44.4 t ADT: 11,200

ROUTE 8 NORTHBOUND

Fair

Over: U. S. ROUTE 6 EASTBOUND

.1 MI NORTH OF ROUTE 254, CT

Built 1966 Load: 44.4 t ADT: 12,000

ROUTE 2 EASTBOUND

Fair

Over: ROUTE 149

ROUTE 2 EXIT NO. 16, CT

Built 1968 Load: 44.4 t ADT: 16,100

FAIRVIEW AVENUE

Fair

Over: PROV & WORC RAILROAD

900 FT N OF I-95, CT

Built 2002 Load: 44.4 t ADT: 4,100

ROUTE 216

Fair

Over: SPAULDING BROOK

0.6 MI EAST OF ROUTE 49, CT

Built 2009 Load: 44.4 t ADT: 900

SSR 478

Fair

Over: EAST ASPETUCK RIVER

AT OUTLET OF LAKE WARMAUG, CT

Built 1988 Load: 44.4 t ADT: 600

I-84 RAMP 299

Fair

Over: I-84 RAMP 191 & 06871T

I-84 EB EXIT 48A OFF RAMP, CT

Built 1987 Load: 44.4 t ADT: 5,000

BECKLEY ROAD

Fair

Over: ROUTE 9

0.5 MILE NORTH OF RTE 372, CT

Built 1988 Load: 44.4 t ADT: 1,974

MASON ROAD

Fair

Over: BLACKWELL BROOK

.2 MILE WEST OF ROUTE 169, CT

Built 1991 Load: 44.4 t ADT: 1,208

ROUTE 2

Fair

Over: SR 517 SB

AT EXIT 5 A, CT

Built 1962 Load: 44.5 t ADT: 62,300

I-95 RAMP 350

Fair

Over: METRO-NORTH & LOCAL RDS

I-95 SB EXIT 8 OFF RAMP, CT

Built 1999 Load: 44.5 t ADT: 9,700

ROUTE 22

Fair

Over: ROUTE 15

AT EXIT 63 OF ROUTE 15, CT

Built 1947 Load: 44.6 t ADT: 15,800

BRIGHAM ROAD

Fair

Over: WILLIMANTIC RIVER

AT MANSFIELD TOWN LINE, CT

Built 1956 Load: 44.6 t ADT: 108

ROUTE 154

Fair

Over: MILL CREEK

2.3 MI NORTH OF RTE 82, CT

Built 1928 Load: 44.6 t ADT: 4,200

INTERSTATE-95

Fair

Over: EAST RIVER ROAD

2.1 MI NORTH OF ROUTE 77, CT

Built 1957 Load: 44.7 t ADT: 54,500

ROUTE 8 RAMP 25

Fair

Over: HULL AVE & PRIVATE DRIVE

RT 8 EX 14 (JCT RT 110), CT

Built 1990 Load: 44.7 t ADT: 2,700

OAK STREET

Fair

Over: ROUTE 2

0.2 MILE EAST OF ROUTE 94, CT

Built 1964 Load: 44.7 t ADT: 10,800

FLANDERS ROAD

Fair

Over: INTERSTATE-95 NB

1.2 MI N OF ROUTE 117, CT

Built 1964 Load: 44.7 t ADT: 1,700

Showing 1,851-1,900 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.