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

291 RMP & DEERF RD

Good

Over: DECKERS BROOK

0.1 MILE EAST OF RTE. 159, CT

Built 1993 Load: 49.9 t ADT: 10,000

I-84 WB EXIT 24 ON

Good

Over: MAD RIVER

AT HARPERS FERRY RD INTER, CT

Built 2018 Load: 49.9 t ADT: 4,000

Mud Pond Road

Good

Over: Bull Mountain Brook

300-ft N of Long Mtn Rd, CT

Built 2022 Load: 49.9 t ADT: 20

WOODMONT ROAD

Good

Over: METRO NORTH RAILROAD

0.5 MI S OF I-95, CT

Built 1987 Load: 50.0 t ADT: 16,400

US ROUTE 6 RMP 003

Good

Over: SNAKE MEADOW BROOK

1.75 Mi West of I-395, CT

Built 1959 Load: 50.2 t ADT: 750

INTERSTATE-84 EB

Good

Over: PIERPONT ROAD

.8 MI WEST OF CHESHIRE TL, CT

Built 2006 Load: 50.2 t ADT: 50,850

ROUTE 89

Good

Over: MOUNT HOPE RIVER

1.2 MILES NORTH OF RTE 44, CT

Built 2010 Load: 50.2 t ADT: 2,100

US ROUTE 202

Good

Over: STILL RIVER

RT 7 NORTH FED. ROAD EXIT, CT

Built 1976 Load: 50.2 t ADT: 31,100

LITTLE CITY ROAD

Good

Over: PONSET BROOK

825 FT W OF ROUTE 81, CT

Built 1961 Load: 50.2 t ADT: 1,500

OLD MILL ROAD

Good

Over: EAST ASPETUCK RIVER

0.25 M EAST OF ROUTE 202, CT

Built 2001 Load: 50.2 t ADT: 62

PAPER MILL ROAD

Good

Over: JEREMY RIVER

0.1 MI E OF ROUTE 149, CT

Built 1987 Load: 50.2 t ADT: 36

I-95 NB & RAMP 346

Good

Over: FULTON TERRACE

0.2 MI S OF US ROUTE 1, CT

Built 2006 Load: 50.2 t ADT: 54,500

PINEWOODS ROAD

Good

Over: STILL RIVER

900 FEET WEST OF ROUTE 8, CT

Built 2010 Load: 50.2 t ADT: 3,737

VALLEY ROAD

Good

Over: BRANFORD RIVER

1/4 mi east of Route 139, CT

Built 2004 Load: 50.2 t ADT: 1,525

BUCKS HILL ROAD

Good

Over: INTERSTATE 84

.7 MI WEST OF ROUTE 188, CT

Built 1964 Load: 50.5 t ADT: 1,300

I-84 EB EXIT 25 OF

Good

Over: MAD RIVER

1600+/- EAST OF ROUTE 69, CT

Built 2018 Load: 50.5 t ADT: 5,500

BLUE SWAMP ROAD

Good

Over: W BRANCH SHEPAUG RIVER

1 MILE EAST OF WARREN TL, CT

Built 2014 Load: 50.5 t ADT: 186

HAZEL PLAIN ROAD

Good

Over: SPRAIN BROOK

300 FEET WEST OF ROUTE 47, CT

Built 2019 Load: 50.5 t ADT: 468

PERRY MERRILL DRIV

Good

Over: STREAM

0.25 mi. west of Tyrol La, CT

Built 2010 Load: 50.5 t ADT: 505

ROUTE 229

Good

Over: PEQUABUCK RIVER

JCT RT 229 & RT 72, CT

Built 1969 Load: 50.6 t ADT: 15,400

RIVER ROAD

Good

Over: FARM RIVER

0.2 MI S OF ROUTE 80, CT

Built 2002 Load: 50.8 t ADT: 1,076

BRISTOL TOWN ROAD

Good

Over: EIGHT MILE BROOK

300 EAST FROM ROUTE 188, CT

Built 1950 Load: 50.8 t ADT: 270

INTERSTATE-91 SB

Good

Over: ROUTE 159

300 SOUTH OF EXIT 34 SB, CT

Built 1991 Load: 50.8 t ADT: 70,350

U.S. ROUTE 5

Good

Over: INTERSTATE-91

2 MILES NORTH OF RTE. 190, CT

Built 1959 Load: 50.9 t ADT: 15,100

ROUTE 120

Good

Over: MISERY BROOK

1.5 MI N OF ROUTE 322, CT

Built 1963 Load: 50.9 t ADT: 7,200

ROUTE 49

Good

Over: WYASSUP BROOK

1.5 MI N OF ROUTE 184, CT

Built 2021 Load: 50.9 t ADT: 1,600

INTERSTATE-395 NB

Good

Over: TRACY ROAD

5.8 MI NORTH OF US RTE 6, CT

Built 2017 Load: 50.9 t ADT: 14,200

BRADLEY AVENUE

Good

Over: HARBOR BROOK

200 FT N OF COE AVENUE, CT

Built 2006 Load: 50.9 t ADT: 7,100

MAIN STREET

Good

Over: PODUNK RIVER

0.5 MILES SOUTH OF I-291, CT

Built 2022 Load: 50.9 t ADT: 1,602

ROUTE 12

Good

Over: FIVE MILE RIVER

AT JCT WITH US ROUTE 6, CT

Built 1993 Load: 50.9 t ADT: 7,600

MUNYAN ROAD

Good

Over: FIVE MILE RIVER

3000FT FR JCT ROUTE 44, CT

Built 2000 Load: 51.0 t ADT: 646

FOXTOWN ROAD

Good

Over: EIGHT MILE RIVER

200 FT E. OF SSR 434, CT

Built 2019 Load: 51.2 t ADT: 362

WHIPPOORWILL LA #1

Good

Over: PUMPKIN GROUND BROOK

0.5 M N OF RT 110 & 113, CT

Built 2014 Load: 51.2 t ADT: 905

I-95 SB & RAMP 347

Good

Over: FULTON TERRACE

0.2 MI S OF US ROUTE 1, CT

Built 2006 Load: 51.2 t ADT: 44,700

INTERSTATE-91 NB

Good

Over: ROUTE 159

300 NORTH OF EXIT 34 NB, CT

Built 1991 Load: 51.4 t ADT: 70,350

INTERSTATE-395 SB

Good

Over: SR 607 WESTCOTT ROAD

1 MI NORTH OF US RTE 6, CT

Built 1962 Load: 51.5 t ADT: 13,100

INTERSTATE-395 NB

Good

Over: SR 607 WESTCOTT ROAD

1 MI N OF US ROUTE 6, CT

Built 1962 Load: 51.5 t ADT: 12,200

ROUTE 165

Good

Over: PACHAUG POND

.5 MI WEST OF ROUTE 201, CT

Built 2014 Load: 51.5 t ADT: 2,000

MANSFIELD AVENUE

Good

Over: U.S. ROUTE 6 EASTBOUND

.4 E MANSFIELD WINDHAM TL, CT

Built 1971 Load: 51.5 t ADT: 800

SOUTH MAPLE STREET

Good

Over: SCANTIC RIVER

1750 FT SOUTH OF RTE 190, CT

Built 2010 Load: 51.5 t ADT: 2,500

PARK ROAD

Good

Over: TROUT BROOK

50 W. OF TROUT BROOK DR, CT

Built 1956 Load: 51.5 t ADT: 3,448

WESTMERE AVENUE

Good

Over: FARM CREEK

SOUTH OF BLUFF AVE, CT

Built 1939 Load: 51.5 t ADT: 2,420

CARTBRIDGE ROAD

Good

Over: SAUGATUCK RIVER

300 WEST LYONS PLAINS RD, CT

Built 2008 Load: 51.5 t ADT: 2,570

EAST MAIN STREET

Good

Over: SUMNER BROOK

475 FT N OF ROUTE 17, CT

Built 1985 Load: 51.5 t ADT: 5,685

I-84 EASTBOUND

Good

Over: MAD RIVER

250 W OF HARPERS FERRY, CT

Built 2018 Load: 51.5 t ADT: 44,000

I-84 WESTBOUND

Good

Over: MAD RIVER

250 W OF HARPERS FERRY, CT

Built 2018 Load: 51.5 t ADT: 42,700

ROUTE 183

Good

Over: SANDY BROOK

2 MILES NORTH OF RTE 182A, CT

Built 1958 Load: 51.7 t ADT: 850

ROUTE 25 NB

Good

Over: ROUTE 127

0.6 MI N OF ROUTE 15, CT

Built 1981 Load: 51.7 t ADT: 20,400

ROUTE 219

Good

Over: MOUNTAIN BROOK

0.3 MILE SOUTH OF RTE. 20, CT

Built 1959 Load: 51.8 t ADT: 6,900

ROUTE 2 WESTBOUND

Good

Over: ROARING BROOK

0.20 MI WEST OF ROUTE 83, CT

Built 1964 Load: 51.8 t ADT: 22,700

Showing 3,751-3,800 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.