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

ROUTE 2

Fair

Over: MCCLELLAN AVENUE

1 MI EAST OF I-395, CT

Built 1959 Load: 28.2 t ADT: 22,400

ROUTE 8 NORTHBOUND

Fair

Over: NAUGATUCK RIVER & RR

1.0 MI N OF CAMPVILLE RD, CT

Built 1960 Load: 28.2 t ADT: 12,600

STANWICH ROAD

Fair

Over: ROUTE 15

7.5 MI EAST OF STATE LINE, CT

Built 1936 Load: 28.2 t ADT: 1,500

ROUTE 17

Fair

Over: HOLLAND BROOK

1.05 N OF RT 160 WATER ST, CT

Built 1939 Load: 28.2 t ADT: 14,700

INTERSTATE 84 EB

Fair

Over: ROUTE 25

EXIT 9 INTERSTATE 84, CT

Built 1960 Load: 28.2 t ADT: 36,200

US ROUTE 202

Fair

Over: EAST ASPETUCK RIVER

2.06MI E OF ROUTE 109 JCT, CT

Built 1931 Load: 28.2 t ADT: 8,000

US ROUTE 44

Fair

Over: WACHOCASTINOOK CREEK

DOWNTOWN SALISBURY, CT

Built 1951 Load: 28.2 t ADT: 7,100

ROUTE 79

Fair

Over: AMTRAK RAILROAD

0.3 MI N OF US ROUTE 1, CT

Built 1957 Load: 28.2 t ADT: 13,400

ROUTE 108

Fair

Over: MEANS BROOK

3.5 MI S OF ROUTE 110, CT

Built 1925 Load: 28.2 t ADT: 16,400

ROUTE 9 SOUTHBOUND

Fair

Over: FILLEY ROAD

1/2 MI SO BEAVERMEADOW RD, CT

Built 1967 Load: 28.2 t ADT: 15,500

ROUTE 8 NORTHBOUND

Fair

Over: PINEWOODS ROAD

AT EXIT 46, CT

Built 1967 Load: 28.2 t ADT: 5,800

CLIMAX ROAD

Fair

Over: NOD BROOK

150 FT EAST OF ROUTE 167, CT

Built 1942 Load: 28.2 t ADT: 2,922

UNION STREET

Fair

Over: HOCKANUM RIVER

0.3 MI N OF NORTH MAIN ST, CT

Built 1989 Load: 28.2 t ADT: 5,200

CHURCH ST SOUTH #1

Fair

Over: ROUTE 34

BTWN N & S FRONTAGE ROADS, CT

Built 1960 Load: 28.3 t ADT: 7,800

CHENEY MILL ROAD

Fair

Over: BIGELOW BROOK

150 FT SO OF WESTFORD RD, CT

Built 1937 Load: 28.4 t ADT: 6

US ROUTE 1 & PW RR

Fair

Over: QUINNIPIAC RIVER

0.2 MI S OF I-95 Q-BRIDGE, CT

Built 2002 Load: 28.5 t ADT: 12,400

ROUTE 64

Fair

Over: HOP BROOK

1.5 MI E OF ROUTE 188, CT

Built 1928 Load: 28.5 t ADT: 10,000

ROUTE 20

Fair

Over: STILL RIVER

1.1 MI FROM WINCHESTER TL, CT

Built 1953 Load: 28.5 t ADT: 1,600

INTERSTATE 84 WB

Fair

Over: SANDY HILL ROAD

2.0 MI W OF RT 63, CT

Built 1964 Load: 28.5 t ADT: 36,800

ROUTE 101

Fair

Over: MASHAMOQUET BROOK

.3 MI WEST OF RTE 169, CT

Built 1929 Load: 28.5 t ADT: 7,100

PARK ROAD

Fair

Over: ROUTE 2

.9 MI WEST OF ROUTE 66, CT

Built 1964 Load: 28.5 t ADT: 386

NEW STREET

Fair

Over: ROUTE 8

0.5 MI SOUTH OF JCT US 44, CT

Built 1969 Load: 28.5 t ADT: 1,270

ROUTE 159

Fair

Over: AMTRAK RAILROAD

.44 MI NORTH WINDSOR TL, CT

Built 1974 Load: 28.5 t ADT: 3,600

ROUTE 25 SB

Fair

Over: PEQUONNOCK RIVER

0.7 MI NORTH OF ROUTE 15, CT

Built 1980 Load: 28.5 t ADT: 21,100

US ROUTE 7

Fair

Over: BROAD STREET

0.3 MI N OF ROUTE 123, CT

Built 1990 Load: 28.5 t ADT: 37,900

HAMDEN HILLS DRIVE

Fair

Over: SHEPARD BROOK & RR TRAIL

300 FT W OF GLEN RIDGE RD, CT

Built 1991 Load: 28.5 t ADT: 5,690

I-95 RAMP 097

Fair

Over: RT 130&YELLOW MILL POND

I-95 NB EXIT 29 OFF RAMP, CT

Built 1999 Load: 28.8 t ADT: 6,000

ROUTE 81

Fair

Over: INTERSTATE-95

I-95 EXIT NO. 63, CT

Built 1957 Load: 28.8 t ADT: 12,000

ROUTE 15 SB

Fair

Over: SR 719

Route 15 Exit 40, CT

Built 1938 Load: 28.8 t ADT: 30,700

ROUTE 12

Fair

Over: PROV & WORC RAILROAD

.1 MI SOUTH OF ROUTE 2, CT

Built 1955 Load: 28.8 t ADT: 14,600

UPPER STATE STREET

Fair

Over: ROUTE 15

.3 MILES NORTH ROUTE 22, CT

Built 1947 Load: 28.8 t ADT: 3,224

ROUTE 47

Fair

Over: BEE BROOK

1.1 MI SOUTH OF ROUTE 202, CT

Built 1959 Load: 28.8 t ADT: 1,900

INTERSTATE-84 WB

Fair

Over: SHADDUCK ROAD

0.4 MI W OF ROUTE 188, CT

Built 1964 Load: 28.8 t ADT: 35,300

ROUTE 169

Fair

Over: SHETUCKET RIVER

50 YDS E OF RTS 169&97JCT, CT

Built 1938 Load: 28.8 t ADT: 2,000

INTERSTATE-84 EB

Fair

Over: AMTRAK RR & LOCAL ROADS

.86 W OF EXIT TO I-91 SB, CT

Built 1966 Load: 28.8 t ADT: 83,900

INTERSTATE-691

Fair

Over: CENTER STREET

0.4 MI W OF US ROUTE 5, CT

Built 1971 Load: 28.8 t ADT: 75,500

ROUTE 136

Fair

Over: NORWALK RIVER

I-95 EXIT 16 TO RT 136 WB, CT

Built 1972 Load: 28.8 t ADT: 17,900

ROUTE 9 SOUTHBOUND

Fair

Over: INTERSTATE-91 NB TR 818

1.9 MI S OF ROUTE 372, CT

Built 1965 Load: 28.8 t ADT: 28,300

SIMSBURY ROAD

Fair

Over: BISSELL BROOK

250 E OF BARNDOOR HILLS, CT

Built 1956 Load: 28.8 t ADT: 1,210

SO ANGUILLA ROAD

Fair

Over: ANGUILLA BROOK

900 FT SOUTH OF ROUTE 234, CT

Built 1940 Load: 28.8 t ADT: 539

HERITAGE ROAD

Fair

Over: POMPERAUG RIVER

.5 MI WEST OF ROUTE 6, CT

Built 1971 Load: 28.8 t ADT: 4,300

LOWER BARRACK ROAD

Fair

Over: FLAT BROOK

WEST OF MUSIC MTN ROAD, CT

Built 1956 Load: 28.8 t ADT: 31

INTERSTATE-691 WB

Fair

Over: TEN MILE RIVER

7.5 MI W OF INTERSTATE-91, CT

Built 1986 Load: 28.8 t ADT: 28,500

US ROUTE 1

Fair

Over: METRO NORTH RAILROAD

NEAR EXIT 23 - ROUTE 95, CT

Built 1938 Load: 28.8 t ADT: 9,700

DAY HILL ROAD

Fair

Over: ROARING BROOK

0.3 MI N OF ROUTE 148, CT

Built 1989 Load: 28.8 t ADT: 335

ROUTE 67

Fair

Over: LITTLE RIVER

1.3 MI WEST OF ROUTE 8, CT

Built 1926 Load: 28.8 t ADT: 14,600

ROUTE 49

Fair

Over: SHUNOCK RIVER

0.6 MI N OF ROUTE 2, CT

Built 1954 Load: 29.0 t ADT: 4,900

INTERSTATE-395

Fair

Over: PACHAUG RIVER

.3 MI SOUTH OF ROUTE 201, CT

Built 1958 Load: 29.2 t ADT: 32,500

ROUTE 16

Fair

Over: POCOTOPAUG CREEK

425 FT E OF ROUTE 196, CT

Built 1939 Load: 29.2 t ADT: 6,300

ROUTE 82

Fair

Over: EIGHT MILE RIVER

0.6 MI E OF ROUTE 156, CT

Built 1925 Load: 29.2 t ADT: 3,300

Showing 351-400 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.