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 (8)

861 914 267 893 442 471 309 208

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

NOANK-LEDYARD ROAD

Fair

Over: INTERSTATE-95

1.8 MI N OF ROUTE 117, CT

Built 1964 Load: 0.0 t ADT: 1,706

CHESTNUT STREET

Fair

Over: ROUTE 9 NORTHBOUND

0.1 MILE S. OF JUNC RT72, CT

Built 1975 Load: 0.0 t ADT: 4,500

NURSERY ROAD

Fair

Over: FIVE MILE RIVER

B/T MPKWY EXIT 37 & 38, CT

Built 1960 Load: 0.0 t ADT: 612

ACCESS ROAD

Fair

Over: BLACKBERRY RIVER

BY IND.MON.OFF LOWER ROAD, CT

Built 1970 Load: 6.3 t ADT: 15

BROOKSIDE DRIVE

Fair

Over: MILL RIVER

0.4 MI S OF ROUTE 58, CT

Built 1955 Load: 8.1 t ADT: 8,800

HONEY HILL ROAD

Fair

Over: NORWALK RIVER

125 FEET EAST OF ROUTE 7, CT

Built 1957 Load: 8.4 t ADT: 380

SR 848 (WATERBURY

Fair

Over: NAUGATUCK RIVER & RR

OFF EXIT 38 ROUTE 8, CT

Built 1928 Load: 9.4 t ADT: 2,500

BAKER ROAD

Fair

Over: QUADDICK LAKE

1.4MI. EAST OF ROUTE 193, CT

Built 1940 Load: 9.7 t ADT: 241

SR 502 -SPENCER ST

Fair

Over: INTERSTATE-384

1 MI EAST OF EH TOWNLINE, CT

Built 1974 Load: 10.7 t ADT: 19,200

HULLS FARM ROAD

Fair

Over: SASCO BROOK

WESTPORT-FAIRFIELD TWN LN, CT

Built 1935 Load: 11.0 t ADT: 3,060

ROUTE 14

Fair

Over: MOOSUP RIVER

0.1 MI WEST OF GOSHEN RD, CT

Built 1940 Load: 12.3 t ADT: 2,700

I-384 TR 801 EB

Fair

Over: HOCKANUM RIVER

0.1 MILE EAST OF E.H. T.L, CT

Built 1986 Load: 12.3 t ADT: 1,860

BRIARWOOD DRIVE

Fair

Over: MORRISSEY BROOK

1/4 mile West of Route 39, CT

Built 1987 Load: 12.6 t ADT: 21

EAST PUTNAM ROAD

Fair

Over: CADY BROOK

0.7 MI SOUTH OF ROUTE 44, CT

Built 1940 Load: 13.0 t ADT: 1,398

BRANDY HILL ROAD

Fair

Over: QUADDICK LAKE

0.4 MILE NORTH OF SSR 438, CT

Built 1940 Load: 13.3 t ADT: 531

ROUTE 15

Fair

Over: SAUGATUCK RIVER

BETWEEN EXIT 41 & EXIT 42, CT

Built 1938 Load: 13.5 t ADT: 66,300

US ROUTE 1

Fair

Over: METRO NORTH RAILROAD

2.5 MI S OF I-95, CT

Built 1933 Load: 14.3 t ADT: 13,536

PEEP TOAD ROAD

Fair

Over: WHETSTONE BROOK

2000 FT S OF ROUTE 101, CT

Built 1850 Load: 14.5 t ADT: 110

MEADOWBROOK ROAD

Fair

Over: INTERSTATE 95

I-95 EXIT NO. 23, CT

Built 1958 Load: 14.6 t ADT: 6,148

ROUTE 219

Fair

Over: E BR FARMINGTON RIVER

APP 1.2 MI N OF ROUTE 44, CT

Built 1929 Load: 15.2 t ADT: 2,000

ROUTE 8 NORTHBOUND

Fair

Over: BRANCH BROOK

0.25 MI SOUTH OF EXIT 38, CT

Built 1964 Load: 15.2 t ADT: 16,900

US ROUTE 202

Fair

Over: FARMINGTON RIVER

AT JCT OF ROUTE 202 & 179, CT

Built 1961 Load: 15.6 t ADT: 11,600

MURDOCK AVENUE

Fair

Over: INTERSTATE-91

.74 MI SO OF RT 15 NB EXT, CT

Built 1965 Load: 15.6 t ADT: 2,700

I-84 TR 813

Fair

Over: I-84 WB & SR 536

I-84 EB EXIT 33 TO RT72WB, CT

Built 1969 Load: 15.9 t ADT: 4,900

FLATBUSH AVENUE

Fair

Over: SOUTH BRANCH PARK RIVER

0.1 MILE EAST OF SR 504, CT

Built 1928 Load: 15.9 t ADT: 16,500

ROUTE 71

Fair

Over: ROUTE 72 & RAMPS

0.1 MILE W OF ROUTE 9 INT, CT

Built 1971 Load: 15.9 t ADT: 18,100

ROUTE 187

Fair

Over: FARMINGTON RV& TUNXIS AV

AT EAST GRANBY TOWN LINE, CT

Built 1960 Load: 16.2 t ADT: 7,700

RT138 & LINCOLN SQ

Fair

Over: ABANDONED CANAL

1 MI EAST OF ROUTE 12, CT

Built 1946 Load: 16.5 t ADT: 3,900

ROUTE 9 RAMP

Fair

Over: ROUTE 9

EXIT 26 OFF ROUTE 9 NB, CT

Built 1988 Load: 16.5 t ADT: 4,700

INTERSTATE-95 SB

Fair

Over: TAUGWONK ROAD

0.8 MI N OF ROUTE 234, CT

Built 1964 Load: 16.8 t ADT: 22,400

TOWN BRIDGE ROAD

Fair

Over: FARMINGTON RIVER

0.1 MI WEST OF ROUTE 179, CT

Built 1895 Load: 16.8 t ADT: 230

I-84 WB HOV LANE

Fair

Over: ROUTE 15

JCT OF SILVER LANE, CT

Built 1988 Load: 16.8 t ADT: 4,000

JUNIPER LANE

Fair

Over: MOUNT HOPE RIVER

150 EAST OF ROUTE 89, CT

Built 1920 Load: 17.2 t ADT: 126

ROUTE 2

Fair

Over: I-91 & CONN RV CT SO. RR

JCT ROUTE 2 & I-91, CT

Built 1958 Load: 17.5 t ADT: 28,300

ROUTE 47

Fair

Over: WEEKEEPEEMEE RIVER

NEAR INT OF RTE 132, CT

Built 1928 Load: 17.5 t ADT: 3,000

PLATT ROAD

Fair

Over: ROUTE 8

1.5 MI SOUTH OF ROUTE 110, CT

Built 1975 Load: 17.5 t ADT: 4,800

HILLSTOWN ROAD

Fair

Over: INTERSTATE-384

0.25 MILE S OF SPENCER ST, CT

Built 1970 Load: 17.5 t ADT: 6,700

SIMSBURY ROAD

Fair

Over: WEST BRANCH SALMON BROOK

0.2 MI NO. OF FIRETOWN RD, CT

Built 1956 Load: 17.5 t ADT: 1,480

WEST GLEN DRIVE

Fair

Over: MIANUS RIVER

250 WEST OF WESTOVER RD, CT

Built 1964 Load: 17.5 t ADT: 600

I-91 TR 806

Fair

Over: INTERSTATE-91

.30M N OF NB JCT NB RTE40, CT

Built 1972 Load: 17.8 t ADT: 7,200

BROOKLYN TURNPIKE

Fair

Over: MERRICK BROOK

650 WEST OF BROOK ROAD, CT

Built 1940 Load: 17.8 t ADT: 480

INTERSTATE-91 NB

Fair

Over: PARK RIVER & CSO RR

AT EXIT 29A, CT

Built 1964 Load: 18.1 t ADT: 51,350

QUINNIPIAC STREET

Fair

Over: QUINNIPIAC RIVER

150 FT E. OF ROUTE 15, CT

Built 1938 Load: 18.1 t ADT: 12,500

MILL ROAD

Fair

Over: NONEWAUG RIVER

25 FEET SOUTH OF ROUTE 6, CT

Built 1900 Load: 18.1 t ADT: 300

INTERSTATE-395

Fair

Over: YANTIC RIVER NEC RR

.2 MI N OF ROUTE 2 & 32, CT

Built 1958 Load: 18.5 t ADT: 37,800

ROSS ROAD

Fair

Over: SR 695

1 MI E JCT INTERSTATE-395, CT

Built 1958 Load: 18.5 t ADT: 322

STANLEY STREET #1

Fair

Over: ROUTE 9 & RAMPS

100Ft W EX28-RT9N ONRAMP, CT

Built 1977 Load: 18.5 t ADT: 4,800

ROUTE 8 SOUTHBOUND

Fair

Over: BANK & S.LEONARD STREETS

AT EXIT 30 ROUTE 8 SB, CT

Built 1965 Load: 18.8 t ADT: 23,800

DRINKWATER PLACE

Fair

Over: METRO NORTH RAILROAD

100 FT N SUMMIT ROAD, CT

Built 1900 Load: 18.8 t ADT: 1,816

PILFERSHIRE ROAD

Fair

Over: STILL RIVER

0.2 MI. EAST OF ROUTE 198, CT

Built 1939 Load: 18.8 t ADT: 123

Showing 1-50 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.