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

US ROUTE 1

Fair

Over: INTERSTATE-95

0.1 MI N OF ROUTE 106, CT

Built 1958 Load: 62.0 t ADT: 14,700

ROUTE 189 SB

Fair

Over: TARIFFVILLE ROAD #1

0.5 MI NO. OF JCT RTE 187, CT

Built 1960 Load: 62.1 t ADT: 9,300

HIGHLAND AVENUE

Fair

Over: ROUTE 8

1.2 MI N OF I-95, CT

Built 1968 Load: 62.1 t ADT: 2,344

POND LILY AVENUE

Fair

Over: WEST RIVER

AT JCT OF WHALLEY AV, CT

Built 1991 Load: 62.1 t ADT: 7,300

INTERSTATE-95

Fair

Over: LONG WHARF DRIVE

0.5 MI N. OF ROUTE 10, CT

Built 1958 Load: 62.2 t ADT: 125,900

ROUTE 156

Fair

Over: DUCK RIVER

1.0 MI E OF US ROUTE 1, CT

Built 1961 Load: 62.3 t ADT: 5,400

I-91 RAMP 136

Fair

Over: HUMPHREY STREET

1.1 MI N OF I-95, CT

Built 1965 Load: 62.4 t ADT: 10,000

ROUTE 15

Fair

Over: QUINNIPIAC STREET

0.7 MI N OF NO HAVEN T.L, CT

Built 1947 Load: 62.5 t ADT: 66,900

I-84 RAMP 243

Fair

Over: SR 824 (WOODLAND RD.)

750 WEST OF REST AREA, CT

Built 1984 Load: 62.6 t ADT: 1,300

ROUTE 12

Fair

Over: PROV & WORC RAILROAD

1.4 MI NORTH OF ROUTE 200, CT

Built 1985 Load: 62.6 t ADT: 4,000

POND HILL ROAD

Fair

Over: HOWELL BROOK

0.5 MILE NORTH OF SSR 488, CT

Built 2002 Load: 62.8 t ADT: 403

RT 106/WOLFPIT RD

Fair

Over: METRO-NORTH RAILROAD

OFF US ROUTE 7, CT

Built 1980 Load: 62.9 t ADT: 5,900

ROUTE 14

Fair

Over: NATCHAUG RIVER

0.2 MI EAST OF ROUTE 66, CT

Built 1986 Load: 62.9 t ADT: 6,300

ROUTE 2 WESTBOUND

Fair

Over: JEREMY RIVER

0.4 MILE OF ROUTE 149, CT

Built 1959 Load: 63.2 t ADT: 17,100

ROUTE 8 SOUTHBOUND

Fair

Over: MAIN STREET NO. 3 NB

1.5 MI. NORTH OF I-95, CT

Built 1970 Load: 63.2 t ADT: 4,600

US ROUTE 1

Fair

Over: BETTS POND BROOK

0.1 MI S OF ROUTE 53, CT

Built 1975 Load: 63.2 t ADT: 10,500

ROUTE 140

Fair

Over: MIDDLE RIVER

.2 MI W OF RT 32 & RT 190, CT

Built 1935 Load: 63.4 t ADT: 1,900

HOSLEY AVENUE

Fair

Over: AMTRAK RAILROAD

200 S OF INTERSTATE-95, CT

Built 1887 Load: 63.4 t ADT: 340

INTERSTATE-95

Fair

Over: ROUTE 127

.2 M-N OF EXT 28 OF I-95N, CT

Built 1959 Load: 63.5 t ADT: 117,900

ROUTE 32

Fair

Over: WILLIMANTIC RIVER

ON WILLINGTON TOWN LINE, CT

Built 1954 Load: 63.5 t ADT: 8,100

ROUTE 272

Fair

Over: HALL MEADOW BROOK

0.5 MI N OF TORRINGTON TL, CT

Built 1961 Load: 63.5 t ADT: 1,100

INTERSTATE-91 SB

Fair

Over: BALDWIN AVENUE

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

Built 1964 Load: 63.5 t ADT: 53,500

ROUTE 9 SOUTHBOUND

Fair

Over: ROUTE 154(MIDDLESEX TPK)

3.0 MI S OF ROUTE 80, CT

Built 1966 Load: 63.5 t ADT: 14,200

I-84 RAMP 031

Fair

Over: ROUTE 34

OVER RTE 34, CT

Built 1973 Load: 63.6 t ADT: 11,700

ROUTE 3

Fair

Over: MATTABESSET RIVER

ADJ TO JUNC RTE 3 & 372, CT

Built 1933 Load: 63.8 t ADT: 15,300

INTERSTATE-91

Fair

Over: CLINTON AVENUE

2.1 MI N OF I-95, CT

Built 1965 Load: 63.8 t ADT: 137,300

HUNTINGDON AVENUE

Fair

Over: DOT RAILROAD

.3 M WEST OF ROUTE 847, CT

Built 1956 Load: 63.8 t ADT: 24,900

SR 598 & LOCAL RDS

Fair

Over: PARK RIVER CONDUIT

BENEATH ROUTE 598, CT

Built 1940 Load: 64.0 t ADT: 32,300

ROUTE 156

Fair

Over: LIEUTENANT RIVER

0.5 MI E OF I-95, CT

Built 1961 Load: 64.2 t ADT: 7,600

ROUTE 8 NORTHBOUND

Fair

Over: ROUTE 254 -WATERBURY RD

AT EXIT 38, CT

Built 1966 Load: 64.2 t ADT: 11,900

ROCK HOUSE ROAD #1

Fair

Over: ASPETUCK RIVER

0.3 MI W OF VALLEY ROAD, CT

Built 1975 Load: 64.2 t ADT: 900

SR 597 SB

Fair

Over: QUINNIPIAC RIVER

EXIT 29 INTERSTATE-84 WB, CT

Built 1963 Load: 64.4 t ADT: 4,800

ROUTE 8 SOUTHBOUND

Fair

Over: ROUTE 254 - WATERBURY RD

AT ROUTE 8 EXIT 38, CT

Built 1966 Load: 64.4 t ADT: 12,100

I-84 EB COLLECTOR

Fair

Over: WASHINGTON STREET

VICINITY OF EXIT 23, CT

Built 1978 Load: 64.4 t ADT: 20,600

INTERSTATE-84 EB

Fair

Over: BUCKLAND STREET

2.8 MI WEST OF VERNON TL, CT

Built 1985 Load: 64.4 t ADT: 56,350

SCRIBNER AVENUE

Fair

Over: INTERSTATE-95

1.0 MI S OF US ROUTE 7, CT

Built 1958 Load: 64.5 t ADT: 7,700

INTERSTATE-384 EB

Fair

Over: SR 534 (CAMP MEETING RD)

0.7 MI WEST OF BOLTON T.L, CT

Built 1968 Load: 64.5 t ADT: 15,850

ROUTE 72 WESTBOUND

Fair

Over: SR 555 (WEST MAIN ST.)

0.4 MI EAST OF ROUTE 372, CT

Built 1973 Load: 64.8 t ADT: 36,550

SAYLE AVENUE

Fair

Over: INTERSTATE-395 SB

.11 MI SO THOMPSON TL., CT

Built 1965 Load: 64.9 t ADT: 410

ABNER LANE

Fair

Over: POND MEADOW BROOK

0.1 MI W OF ROUTE 148, CT

Built 1998 Load: 64.9 t ADT: 119

I-91 NB TR 818

Fair

Over: INTERSTATE-91 NORTHBOUND

1.4 MI N OF ROUTE 373, CT

Built 1988 Load: 65.1 t ADT: 6,200

ROUTE 15

Fair

Over: UNITY ROAD

1.1 MILES SOUTH OF RTE 8, CT

Built 1940 Load: 65.3 t ADT: 86,100

INTERSTATE-91 NB

Fair

Over: BEE STREET

.2 MI SOUTH OF I-691 EB, CT

Built 1965 Load: 65.4 t ADT: 22,500

SR 840 (WHITE TURK

Fair

Over: STILL RIVER

.15 MI N OF SR 805 JCT., CT

Built 1977 Load: 65.4 t ADT: 16,200

POND MEADOW ROAD

Fair

Over: FALLS RIVER

0.2 MI S OF MAIN ST NO 2, CT

Built 1980 Load: 65.4 t ADT: 1,100

MARSH HILL ROAD

Fair

Over: I-95 & I-95 RAMP 352

0.8 MI S OF US1, CT

Built 2001 Load: 65.6 t ADT: 20,500

SR 642

Fair

Over: YANTIC RIVER

1.7 MI WEST OF ROUTE 32, CT

Built 1938 Load: 65.7 t ADT: 9,300

NYALA FARM ROAD

Fair

Over: MUDDY BROOK

0.1 MILE EAST OF SSR 476, CT

Built 1978 Load: 66.1 t ADT: 4,270

ROUTE 193

Fair

Over: ABANDONED RAILROAD

2.2 MI SOUTH OF MASS SL, CT

Built 1950 Load: 66.2 t ADT: 1,400

INTERSTATE-95

Fair

Over: ELM STREET

0.8 MI N OF US ROUTE 1, CT

Built 1957 Load: 66.4 t ADT: 24,000

Showing 2,651-2,700 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.