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

RT 2 WB & SR500-80

Good

Over: I-84 EB & TR 828

.4 MI E HARTFORD TL, CT

Built 1964 Load: 43.4 t ADT: 6,500

ROUTE 79

Good

Over: HAMMONASSET BROOK

0.1 MI S OF ROUTE 148, CT

Built 2015 Load: 43.4 t ADT: 5,800

INTERSTATE-91 SB

Good

Over: MUDDY RIVER

0.8 MI SOUTH OF RT 40, CT

Built 1965 Load: 43.4 t ADT: 55,750

ROUTE 9 RAMP 006

Good

Over: MUD RIVER

500 FT S OF ROUTE 153, CT

Built 1966 Load: 43.4 t ADT: 4,405

I-84 RAMP 266

Good

Over: SKUNGAMAUG RIVER

I-84 EB EXIT 68 OFF RAMP, CT

Built 1978 Load: 43.4 t ADT: 7,600

HILL STREET

Good

Over: MUDDY BROOK

3500 FT FR JCT ROUTE 168, CT

Built 2001 Load: 43.4 t ADT: 2,525

WINDHAM ROAD

Good

Over: LITTLE RIVER

1 MILE EAST OF ROUTE 97, CT

Built 1999 Load: 43.4 t ADT: 372

TAYLOR BRIDGE ROAD

Good

Over: BARTLETT BROOK

1000 FT WEST OF GEER RD, CT

Built 2013 Load: 43.4 t ADT: 148

SAW MILL ROAD

Good

Over: PARMELEE BROOK

0.3 MI NORTH OF ROUTE 17, CT

Built 2001 Load: 43.4 t ADT: 1,300

SOUTH GRAND ST #1

Good

Over: STONY BROOK

1 1/4 MI SO OF RT 187&526, CT

Built 2001 Load: 43.4 t ADT: 619

US ROUTE 44

Good

Over: BLACKBERRY RIVER

.7 MI WEST OF JCT ROUTE 7, CT

Built 1989 Load: 43.4 t ADT: 3,900

DISCOVERY DRIVE

Good

Over: WETLANDS

SOUTH OF ROUTE 44, CT

Built 2015 Load: 43.4 t ADT: 3,800

ROUTE 8

Good

Over: SANDY BROOK

100 S OF RIVERTON ROAD, CT

Built 1988 Load: 43.5 t ADT: 2,900

ROUTE 159

Good

Over: MEADOW BROOK

0.3 MI NO. OF HARTFORD TL, CT

Built 1992 Load: 43.5 t ADT: 12,900

SASCO CREEK ROAD

Good

Over: METRO-NORTH RAILROAD

350 FT S OF I-95, CT

Built 1920 Load: 43.6 t ADT: 840

STILLWATER POND RD

Good

Over: W BRANCH NAUGATUCK RIVER

1000 EAST OF RTE 272, CT

Built 1960 Load: 43.6 t ADT: 642

MARCY ROAD

Good

Over: NATCHAUG RIVER

300 FT E OF NATCHAUG ST, CT

Built 1997 Load: 43.7 t ADT: 85

HIGH BRIDGE ROAD

Good

Over: BANTAM RIVER

.2 MI S. OF ROUTE 202, CT

Built 2008 Load: 43.7 t ADT: 64

ROUTE 154

Good

Over: SOUTH COVE

3.9 MI N OF US ROUTE 1, CT

Built 1994 Load: 43.7 t ADT: 1,700

MARJORIE CIRCLE

Good

Over: JEREMY RIVER

500 SOUTH OF ROUTE 85, CT

Built 2017 Load: 43.7 t ADT: 525

SCHOOL HOUSE ROAD

Good

Over: METRO NORTH RAILROAD

0.1 MI E OF I-95, CT

Built 1893 Load: 44.0 t ADT: 11,803

INTERSTATE-91 SB

Good

Over: HAYDEN STATION ROAD

0.4 MILE SOUTH OF RTE 20, CT

Built 1992 Load: 44.0 t ADT: 57,400

ROUTE 2 WESTBOUND

Good

Over: ENSIGN STREET

.5 MILES WEST OF EXIT 5A, CT

Built 1962 Load: 44.1 t ADT: 33,850

INDUSTRIAL PARK RD

Good

Over: MATTABESSET RIVER

0.2 MI SOUTH OF ROUTE 372, CT

Built 1983 Load: 44.1 t ADT: 7,500

WALNUT TREE HILLRD

Good

Over: POOTATUCK RIVER

300 FT NORTH OF SR 816, CT

Built 1938 Load: 44.1 t ADT: 184

SPRUCE BROOK ROAD

Good

Over: TRANSYLVANIA BROOK

450FT WEST OF RTE 172 INT, CT

Built 2018 Load: 44.1 t ADT: 300

SAWMILL ROAD #1

Good

Over: BALL POND BROOK

.5 MI N E OF ROUTE 37 JCT, CT

Built 2019 Load: 44.1 t ADT: 2,532

ROUTE 154

Good

Over: SOUTH COVE

4.34 MILES NORTH ROUTE 1, CT

Built 1994 Load: 44.1 t ADT: 1,700

SCARD ROAD

Good

Over: MUDDY RIVER

0.3 MI E OF WHIRLWIND HLL, CT

Built 1945 Load: 44.3 t ADT: 714

I-95 TR 812

Good

Over: I95 I91 SR724EB TR801

EXIT 47 OFF I-95 NB, CT

Built 2011 Load: 44.4 t ADT: 5,500

ROUTE 16

Good

Over: BARTLETT BROOK

1.2 MI WEST OF RTE 207, CT

Built 1948 Load: 44.4 t ADT: 2,700

ROUTE 17

Good

Over: LONG HILL BROOK

0.4 MI S OF ROUTE 155, CT

Built 2014 Load: 44.4 t ADT: 14,300

GREYSTONE ROAD EXT

Good

Over: TODD-HOLLOW & HANCOCK

O/TODD HOLLOW& HANCOCK BK, CT

Built 1998 Load: 44.4 t ADT: 12

DOLBIA HILL ROAD 2

Good

Over: EIGHT MILE RIVER

715 FT E OF SSR 434, CT

Built 2005 Load: 44.4 t ADT: 87

BULLS BRIDGE ROAD

Good

Over: POWER STATION CANAL

NEAR ROUTE 7, CT

Built 1991 Load: 44.4 t ADT: 500

INTERSTATE-95

Good

Over: CHESTNUT STREET

0.1 MI N OF US ROUTE 1, CT

Built 1958 Load: 44.7 t ADT: 70,500

ROUTE 74

Good

Over: FENTON RIVER

1.3 MILE EAST OF RTE 320, CT

Built 1933 Load: 44.7 t ADT: 4,000

ROUTE 272

Good

Over: NORFOLK BROOK

0.2 MI S OF US 44 OVLP, CT

Built 1972 Load: 44.7 t ADT: 1,700

SOUTH PARK AVENUE

Good

Over: MILL RIVER

1.0 MI N OF ROUTE 15, CT

Built 2021 Load: 44.7 t ADT: 4,260

BOOM BRIDGE ROAD

Good

Over: PAWCATUCK RIVER

.75 MI SW OF ANTHONY RD, CT

Built 1968 Load: 44.7 t ADT: 102

BAYBERRY LANE #2

Good

Over: ASPETUCK RIVER

0.1 MI NORTH OF ROUTE 136, CT

Built 2022 Load: 44.7 t ADT: 676

TOTOKET ROAD

Good

Over: FARM RIVER

0.4 MI NORTH OF ROUTE 80, CT

Built 1991 Load: 44.7 t ADT: 700

ROUTE 8 SOUTHBOUND

Good

Over: OLD STRATFORD ROAD

3.3 MI N OF ROUTE 15, CT

Built 1975 Load: 44.8 t ADT: 26,400

ROUTE 117

Good

Over: INDIAN TOWN BROOK

150 FT S OF ROUTE 2, CT

Built 2001 Load: 44.9 t ADT: 7,800

ROUTE 154

Good

Over: CANDLEWOOD HILL BROOK

AT JCT RTE 81 & RTE 154, CT

Built 2016 Load: 45.0 t ADT: 5,400

ROUTE 35

Good

Over: RIDGEFIELD BROOK

0.8 MI N OF ROUTE 116, CT

Built 2018 Load: 45.0 t ADT: 16,800

INTERSTATE 91 NB

Good

Over: US1(WATER ST) & I-95 RMP

0.1 MI N OF I-95, CT

Built 1965 Load: 45.0 t ADT: 44,000

BROAD STREET

Good

Over: AMTRAK RR & BUSWAY

200 FEET SOUTH OF I-84 EB, CT

Built 1975 Load: 45.0 t ADT: 8,400

JORDAN COVE ROAD

Good

Over: JORDAN COVE

0.1 MI W OF SHORE ROAD, CT

Built 1937 Load: 45.0 t ADT: 1,799

ORCHARD ROAD

Good

Over: AMTRAK RAILROAD

2500 FT W JCT OLD TPKE RD, CT

Built 2000 Load: 45.0 t ADT: 1,200

Showing 3,551-3,600 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.