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 3

Fair

Over: MAIN STREET

.17 MI WEST OF ROUTE 2, CT

Built 1986 Load: 49.2 t ADT: 50,500

SKIFF STREET

Fair

Over: ROUTE 15

0.8 MI N OF ROUTE 10, CT

Built 1948 Load: 49.3 t ADT: 13,400

ROUTE 72

Fair

Over: PAN AM RAILROAD

0.25 MI. NORTH OF RTE 177, CT

Built 1980 Load: 49.3 t ADT: 29,700

ROUTE 25 NB TR 802

Fair

Over: ROUTE 25 SB TR 801

0.4 MI S OF ROUTE 25 SB, CT

Built 1980 Load: 49.3 t ADT: 6,000

PORTER AVENUE

Fair

Over: HOP BROOK

.1 MI EAST OF ROUTE 63, CT

Built 1940 Load: 49.3 t ADT: 5,900

REV MOODY OVERPASS

Fair

Over: CT SOUTHERN RAILROAD

0.4 MI NORTH OF MARKET ST, CT

Built 1983 Load: 49.3 t ADT: 7,200

SR 805 (FEDERAL RO

Fair

Over: BEAVER BROOK RD

.96 MI N OF WHITE ST JCT, CT

Built 1991 Load: 49.3 t ADT: 13,300

ROUTE 2 EASTBOUND

Fair

Over: EAST RIVER DRIVE

.3 MILE WEST OF MAIN ST, CT

Built 1992 Load: 49.3 t ADT: 34,650

I-95 & I-95 RAMPS

Fair

Over: MNRR & LOCAL ROADS

0.2 MI EAST OF EXIT 8 NB, CT

Built 1958 Load: 49.4 t ADT: 112,800

INTERSTATE 95

Fair

Over: CHAMBERS STREET

At I-95 SB Exit No. 24, CT

Built 1958 Load: 49.4 t ADT: 107,700

SCHOOLHOUSE ROAD

Fair

Over: CENTER BROOK

0.3 MILE EAST OF RTE 183, CT

Built 1957 Load: 49.4 t ADT: 66

U.S. ROUTE 44

Fair

Over: WOOD CREEK

200 FT WEST OF ROUTE 272, CT

Built 1927 Load: 49.5 t ADT: 4,600

HAWKINS STREET

Fair

Over: ROUTE 8

0.9 MILES NORTH ROUTE 34, CT

Built 1952 Load: 49.6 t ADT: 1,400

SAYBROOK ROAD

Fair

Over: ROUTE 9

3.25MI NORTH OF HADDAM TL, CT

Built 1959 Load: 49.6 t ADT: 10,582

INTERSTATE-395 SB

Fair

Over: KILLINGLY DRIVE

2.81 MI NO PLAINFIELD TL, CT

Built 1962 Load: 49.6 t ADT: 13,100

ROUTE 72 (MAIN ST)

Fair

Over: PEQUABUCK RIVER

BTWN RIVERSIDE &SCHOOL ST, CT

Built 1972 Load: 49.6 t ADT: 5,100

I-84 RAMP 031

Fair

Over: I-84 EB & I-84 RAMP 028

I-84 WB EX 11 RMP TO RT34, CT

Built 1973 Load: 49.6 t ADT: 4,700

INTERSTATE-91 NB

Fair

Over: NORTH ROAD

.57 MI NORTH OF ROUTE 372, CT

Built 1965 Load: 49.6 t ADT: 58,900

ROUTE 8 SOUTHBOUND

Fair

Over: ROUTE 130 EAST BOUND

0.6 MI N OF I-95, CT

Built 1968 Load: 49.6 t ADT: 45,500

US ROUTE 7 SB

Fair

Over: US ROUTE 202

ROUTE 7 FEDERAL RD EXIT, CT

Built 1975 Load: 49.6 t ADT: 10,800

SOUTH MAIN STREET

Fair

Over: COPPER MINE BROOK

5000 FT EAST OF ROUTE 69, CT

Built 1956 Load: 49.6 t ADT: 330

TURKEY HILL ROAD

Fair

Over: HOUSATONIC RAILROAD

NEWTOWN TOWN GARAGE, CT

Built 1983 Load: 49.6 t ADT: 948

ROUTE 162

Fair

Over: INDIAN RIVER

2.4 MI E OF US ROUTE 1, CT

Built 1988 Load: 49.6 t ADT: 13,200

PLEASANT POINT RD

Fair

Over: AMTRAK RAILROAD

.8 MI S. OF ROUTE 146, CT

Built 1988 Load: 49.6 t ADT: 132

I-84 RAMP 305

Fair

Over: I-84 RAMP 304 & E

INTERSTATE-84 WB EXIT 59, CT

Built 1986 Load: 49.6 t ADT: 3,500

DR FOOTE ROAD

Fair

Over: ROUTE 2 EASTBOUND

0.4 MI E OF ROUTE 16, CT

Built 1966 Load: 49.7 t ADT: 2,273

ROUTE 2 EASTBOUND

Fair

Over: ROUTE 11 NORTHBOUND

0.9 MILE EAST OF ROUTE 16, CT

Built 1966 Load: 49.7 t ADT: 11,200

INTERSTATE-95

Fair

Over: FRANKLIN STREET

0.1 MI N OF ROUTE 33, CT

Built 1958 Load: 49.9 t ADT: 110,000

ROUTE 15

Fair

Over: ROUTE 63

3.7 MI W. OF ROUTE 10, CT

Built 1948 Load: 49.9 t ADT: 68,300

INTERSTATE 84 EB

Fair

Over: ROUTE 172

AT EXIT 14, CT

Built 1963 Load: 49.9 t ADT: 37,400

INTERSTATE-395 NB

Fair

Over: KILLINGLY DRIVE

2.81 MI NO PLAINFIELD TL, CT

Built 1962 Load: 49.9 t ADT: 12,200

ROUTE 12

Fair

Over: INTERSTATE-395

1.3 MI S OF US ROUTE 44, CT

Built 1965 Load: 49.9 t ADT: 1,900

ROUTE 8 NORTHBOUND

Fair

Over: ROUTE 222 - EAST MAIN ST

AT EXIT 39, CT

Built 1966 Load: 49.9 t ADT: 9,800

US ROUTE 7 SB

Fair

Over: STILL RIVER

2 MI. SOUTH OF RTE. 202, CT

Built 1976 Load: 49.9 t ADT: 15,250

STATE LINE HILL RD

Fair

Over: SANDY BROOK

AT ROUTE 183, CT

Built 1956 Load: 49.9 t ADT: 67

SSR 437

Fair

Over: NEW ENGLAND CENTRAL RR

1000 FT WEST OF THAMES RV, CT

Built 1987 Load: 49.9 t ADT: 350

BALMFORTH AVE & MA

Fair

Over: PADANARAM BROOK

390 FT S OF ROUTE 37, CT

Built 1988 Load: 49.9 t ADT: 9,375

JENNINGS ROAD

Fair

Over: INTERSTATE-91

.4 MI NO OF I-84/91 INTER, CT

Built 1989 Load: 49.9 t ADT: 16,340

US RTE 7 & ON RAMP

Fair

Over: PERRY AVENUE

0.4 MI N OF ROUTE 123, CT

Built 1991 Load: 49.9 t ADT: 39,600

INTERSTATE 95 NORT

Fair

Over: CONNECTICUT RV FERRY RD

.72 MI. OF ROUTE 156, CT

Built 1993 Load: 49.9 t ADT: 36,500

INTERSTATE-84

Fair

Over: MARKET STREET & I-91 NB

EAST END I-91 & I-84 INT, CT

Built 1961 Load: 50.0 t ADT: 99,700

WEST ROAD

Fair

Over: CHERRY BROOK

0.5 MILE SOUTH OF RTE 179, CT

Built 1900 Load: 50.0 t ADT: 220

INTERSTATE-95

Fair

Over: CENTRAL AVENUE

0.4 MI N OF ROUTE 130, CT

Built 1959 Load: 50.1 t ADT: 115,000

INTERSTATE-84 WB

Fair

Over: US ROUTE 44 EASTBOUND

.3 MI EAST OF HARTFORD TL, CT

Built 1964 Load: 50.1 t ADT: 64,550

INTERSTATE-691 WB

Fair

Over: LEWIS AVE

AT EXIT 6, CT

Built 1971 Load: 50.1 t ADT: 35,300

INTERSTATE-95

Fair

Over: BRANFORD STEAM RAILROAD

0.6 MI N OF US ROUTE 1, CT

Built 1958 Load: 50.2 t ADT: 65,200

ROUTE 3

Fair

Over: NAUBUC AVENUE

0.64 MI SOUTH OF ROUTE 2, CT

Built 1959 Load: 50.2 t ADT: 58,000

U.S. ROUTE 6

Fair

Over: NONEWAUG RIVER

0.4 MILE WEST OF ROUTE 61, CT

Built 1957 Load: 50.2 t ADT: 4,200

INTERSTATE-84 EB

Fair

Over: DNBY TERM/HOUSATONIC RR

O.5 MI WEST OF US ROUTE 7, CT

Built 1962 Load: 50.2 t ADT: 41,200

ROUTE 68

Fair

Over: ALLYNS BROOK

0.4 MI W OF RT 17, CT

Built 1929 Load: 50.2 t ADT: 8,900

Showing 2,201-2,250 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.