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 94

Fair

Over: ROUTE 17

0.13 MI WEST OF RTE 2 EB, CT

Built 1950 Load: 51.2 t ADT: 17,700

US ROUTE 7 NB

Fair

Over: HRRC STILL RV MALL ACC.

SOUTH OF I-84 EXIT 3, CT

Built 1962 Load: 51.2 t ADT: 25,100

ROUTE 17

Fair

Over: RESERVOIR BRK & CATTLE P

0.5 MI N OF ROUTE 17A, CT

Built 1925 Load: 51.2 t ADT: 7,200

INTERSTATE 84 WB

Fair

Over: ROUTE 25

EXIT 9 INTERSTATE-84, CT

Built 1962 Load: 51.2 t ADT: 41,600

ROUTE 32

Fair

Over: N.E. CENTRAL RAILROAD

0.1 NORTH JUNC ROUTE 2, CT

Built 1956 Load: 51.2 t ADT: 18,600

ROUTE 2 EASTBOUND

Fair

Over: NEIPSIC ROAD

NEIPSIC ROAD EXIT 9, CT

Built 1964 Load: 51.2 t ADT: 21,900

RTE 2 EB & I84-828

Fair

Over: I-84 RAMPS 833 & 831

.5 MI E FOUNDERS BR.-HTFD, CT

Built 1964 Load: 51.2 t ADT: 26,800

I-84 RAMP 198

Fair

Over: NO NOTABLE FEATURE

WESTBOUND ON RAMP BANK ST, CT

Built 1967 Load: 51.2 t ADT: 4,600

HIGHLAND AVENUE

Fair

Over: INTERSTATE 84

0.2 MI W OF ROUTE 8, CT

Built 1966 Load: 51.2 t ADT: 15,200

INTERSTATE-395 NB

Fair

Over: ROUTE 101

2.72 MI SO OF PUTNAM TL, CT

Built 1967 Load: 51.2 t ADT: 12,300

OLD TURNPIKE ROAD

Fair

Over: QUINNIPIAC RIVER

0.3 MI N OF ROUTE 322, CT

Built 1957 Load: 51.2 t ADT: 4,200

SR 668

Fair

Over: PROV & WORC RAILROAD

.8 MILE EAST OF ROUTE 169, CT

Built 1979 Load: 51.2 t ADT: 2,200

PADDOCK AVENUE

Fair

Over: ROUTE 15

1/3 MI SOUTH OF I-91, CT

Built 1946 Load: 51.2 t ADT: 5,500

PLEASANT POINT RD

Fair

Over: ABANDONED TROLLEY LINE

1 MI SOUTH OF ROUTE 146, CT

Built 1989 Load: 51.2 t ADT: 114

NICHOLS ROAD

Fair

Over: MAD RIVER

0.6 MI E OF ROUTE 69, CT

Built 1935 Load: 51.4 t ADT: 3,340

INTERSTATE-95

Fair

Over: BRONSON ROAD NO. 1

At EXIT 20, CT

Built 1958 Load: 51.5 t ADT: 114,100

US ROUTE 44 RTE 1

Fair

Over: STILL RIVER

0.5 MILE WEST OF ROUTE 8, CT

Built 1949 Load: 51.5 t ADT: 16,900

HILLANDALE ROAD #1

Fair

Over: SSR 476

1.0 MI N OF I-95, CT

Built 1959 Load: 51.5 t ADT: 1,600

ROUTE 2 EASTBOUND

Fair

Over: ROUTE 17

0.2 MI WEST OF ROUTE 94, CT

Built 1964 Load: 51.5 t ADT: 51,600

MASONS ISLAND ROAD

Fair

Over: AMTRAK RAILROAD

0.1 MI S OF US ROUTE 1, CT

Built 1996 Load: 51.5 t ADT: 2,166

US ROUTE 7 NB

Fair

Over: STILL RIV & GRAYS BR RD

0.6 MI N OF FEDERAL ROAD, CT

Built 1976 Load: 51.5 t ADT: 14,900

ROUTE 15 TR 805

Fair

Over: RESERVOIR AVENUE

EXT 49 RT15(15NB TO 25SB), CT

Built 1980 Load: 51.5 t ADT: 6,900

INTERSTATE-95

Fair

Over: FIELD POINT ROAD

0.3 MI EAST OF EXT 3, CT

Built 1958 Load: 51.6 t ADT: 109,200

ROUTE 138

Fair

Over: LITTLE RIVER

2.2 MI EAST OF ROUTE 97, CT

Built 1966 Load: 51.6 t ADT: 850

ROUTE 53

Fair

Over: SAUGATUCK RIVER

2.6 MI N OF ROUTE 107, CT

Built 1928 Load: 51.6 t ADT: 3,600

INTERSTATE-95

Fair

Over: FERRIS DRIVE

0.3 M EAST OF I-95 EXIT 5, CT

Built 1958 Load: 51.7 t ADT: 121,100

ROUTE 15

Fair

Over: FOLLY BROOK BOULEVARD

1 MILE SO. OF HARTFORD TL, CT

Built 1942 Load: 51.7 t ADT: 34,900

SR 597 SOUTHBOUND

Fair

Over: CANAL ST RAIL TO TRAIL

0.2 MI N OF ROUTE 10, CT

Built 1963 Load: 51.7 t ADT: 4,800

INTERSTATE-95 NB

Fair

Over: POHEGNUT POND

0.3 MI S OF ROUTE 117, CT

Built 1964 Load: 51.7 t ADT: 33,600

INTERSTATE-84 WB

Fair

Over: ROUTE 72 SOUTHBOUND

1/4MI WEST EXIT 33 I-84WB, CT

Built 1968 Load: 51.7 t ADT: 36,300

ROUTE 9 SOUTHBOUND

Fair

Over: RT 154&VALLEY RR&WARD BK

ROUTE 9 EXT NO. 4, CT

Built 1967 Load: 51.7 t ADT: 16,600

RT.9 SB I-84 TR820

Fair

Over: INTERSTATE-84

FARMINGTON STACK, CT

Built 1969 Load: 51.7 t ADT: 18,700

ROUTE 25 SB

Fair

Over: ROUTE 127

0.6 MI N OF ROUTE 15, CT

Built 1980 Load: 51.7 t ADT: 19,800

SQUIRE HILL ROAD

Fair

Over: WEST ASPETUCK RIVER

AT INTERS W/ BEAR HILL RD, CT

Built 1956 Load: 51.7 t ADT: 613

SR 832

Fair

Over: HOUSATONIC RAILROAD

.10 MI SOUTH OF MASS SL, CT

Built 1938 Load: 51.7 t ADT: 550

SCOTLAND ROAD

Fair

Over: INTERSTATE-395

1.6 MILES NORTH OF SR 642, CT

Built 1958 Load: 51.8 t ADT: 1,600

U.S. ROUTE 6

Fair

Over: STEELE BROOK

0.5 MILE EAST OF ROUTE 63, CT

Built 1957 Load: 51.8 t ADT: 6,500

U.S. ROUTE 6

Fair

Over: BRANCH BROOK

50 WEST OF THOMASTON TL, CT

Built 1939 Load: 51.8 t ADT: 8,300

ROUTE 8

Fair

Over: HOUSATONIC RAILROAD

AT EXIT 15, CT

Built 1950 Load: 51.8 t ADT: 73,500

RIVER BANK ROAD

Fair

Over: ROUTE 15

0.9 MI S OF ROUTE 104, CT

Built 1937 Load: 51.8 t ADT: 4,057

INTERSTATE-91 SB

Fair

Over: RESERVE ROAD & CSO RR

0.2 MILE NORTH OF C.O.B., CT

Built 1962 Load: 51.8 t ADT: 50,700

ROUTE 189

Fair

Over: FARMINGTON RIVER

AT EAST GRANBY TOWN LINE, CT

Built 1956 Load: 51.8 t ADT: 9,400

ROUTE 207

Fair

Over: BEAVER BROOK

0.1 MI WEST OF ROUTE 97, CT

Built 1941 Load: 51.8 t ADT: 3,700

ROUTE 2 WESTBOUND

Fair

Over: NEIPSIC ROAD

NEIPSIC ROAD, CT

Built 1964 Load: 51.8 t ADT: 21,900

INTERSTATE-95 SB

Fair

Over: MYSTIC RES&DEANS MILL RD

1.5 MI N. OF ROUTE 27, CT

Built 1964 Load: 51.8 t ADT: 22,400

INTERSTATE-91 NB

Fair

Over: BALDWIN AVENUE

.75 MI NO I-691 & RTE 66, CT

Built 1964 Load: 51.8 t ADT: 54,500

MATHER STREET

Fair

Over: FARMINGTON CANAL GREENWA

0.1 MI E OF ROUTE 10, CT

Built 1942 Load: 51.8 t ADT: 4,800

ROUTE 8 NORTHBOUND

Fair

Over: LINDLEY STREET &PARKING

2.2 MI N OF I-95, CT

Built 1972 Load: 51.8 t ADT: 44,500

ROUTE 9 NORTHBOUND

Fair

Over: BUSWAY-CT FASTRAK

.75 MI SOUTH OF EXIT 29, CT

Built 1976 Load: 51.8 t ADT: 36,400

ROUTE 82 EASTBOUND

Fair

Over: YANTIC RIVER

.2 MILE EAST OF ROUTE 32, CT

Built 1990 Load: 51.8 t ADT: 10,800

Showing 2,301-2,350 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.