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 9 NORTHBOUND

Fair

Over: PRIVATE PROPERTY

2.1 MI N OF ROUTE 372, CT

Built 1969 Load: 31.1 t ADT: 40,000

STUART AVENUE

Fair

Over: US ROUTE 7 NORTHBOUND

I-95 NB EXIT NO. 15, CT

Built 1970 Load: 31.1 t ADT: 11,500

INTERSTATE-384 WB

Fair

Over: BIDWELL STREET

0.6 MILE WEST OF EXIT 2, CT

Built 1968 Load: 31.1 t ADT: 29,850

ROUTE 8

Fair

Over: RTE 42 & NAUGATUCK RIVER

RTE 8 NEAR EXIT 23, CT

Built 1981 Load: 31.1 t ADT: 47,700

US ROUTE 7

Fair

Over: METRO NORTH RAILROAD

0.5 MI N OF RTE 33 N JCT, CT

Built 1983 Load: 31.1 t ADT: 20,000

ROUTE 43

Fair

Over: BRADFORD BROOK

1.5 MI SOUTH OF RTS.43 63, CT

Built 1989 Load: 31.1 t ADT: 400

INTERSTATE-84 WB

Fair

Over: AMTRAK RR & LOCAL ROADS

.13 MI O/MYRTLE STREET, CT

Built 1964 Load: 31.3 t ADT: 91,200

DEPOT STREET

Fair

Over: NAUGATUCK RIVER

OFF NORTH MAIN STREET, CT

Built 1935 Load: 31.3 t ADT: 1,500

ROUTE 15 NORTHBOUN

Fair

Over: I-91 NB RT 2 CT RIVER RR

0.3 MI NORTH OF I-91 NB, CT

Built 1991 Load: 31.3 t ADT: 41,350

ROUTE 79

Fair

Over: INTERSTATE-95

I-95 EXIT NO. 61, CT

Built 1957 Load: 31.4 t ADT: 13,500

US ROUTE 7 SB

Fair

Over: HRRC STILL RV MALL ACC.

SOUTH OF I-84 EXIT 3, CT

Built 1962 Load: 31.4 t ADT: 26,600

I-91 TR 840

Fair

Over: I-91 NB US44 EB RR CT RV

ACCESS I-84EB FROM 1-91SB, CT

Built 1961 Load: 31.4 t ADT: 15,200

ROUTE 177

Fair

Over: PEQUABUCK RIVER

.39 MI SOUTH OF ROUTE 72, CT

Built 1947 Load: 31.4 t ADT: 11,900

ROUTE 207

Fair

Over: RAYMOND BROOK

0.2 MI EAST OF JCT RTE 85, CT

Built 1940 Load: 31.4 t ADT: 2,400

INTERSTATE-95 NB

Fair

Over: COW HILL ROAD

0.8 MI SOUTH OF ROUTE 27, CT

Built 1964 Load: 31.4 t ADT: 26,200

INTERSTATE-84 EB

Fair

Over: RT 72 RT 372 & PanAm RR

I-84 EXIT 35, CT

Built 1969 Load: 31.4 t ADT: 41,200

ROUTE 8 NORTHBOUND

Fair

Over: NAUGATUCK RIVER & R.R.

.1 MI NORTH ROUTE 109, CT

Built 1966 Load: 31.4 t ADT: 14,800

ROUTE 9 NORTHBOUND

Fair

Over: BEAVER MEADOW ROAD

ROUTE 9 EXIT NO. 8, CT

Built 1966 Load: 31.4 t ADT: 15,100

SPRING STREET

Fair

Over: INTERSTATE-384

2.3 MILES EAST OF RTE 83, CT

Built 1970 Load: 31.4 t ADT: 950

ROUTE 8 SOUTHBOUND

Fair

Over: ROUTE 25 NORTHBOUND

ROUTE 8 & ROUTE 25 SPLIT, CT

Built 1971 Load: 31.4 t ADT: 28,600

SR 853

Fair

Over: NAUGATUCK RIVER S DIV ST

0.1 MI W OF ROUTE 115, CT

Built 2004 Load: 31.4 t ADT: 14,700

FLANDERS RIVER RD

Fair

Over: HOP RIVER

300 FT NORTH OF RT 66, CT

Built 1910 Load: 31.4 t ADT: 769

WALL STREET

Fair

Over: E BRANCH NAUGATUCK RIVER

100 NORTH OF ROUTE 202, CT

Built 1961 Load: 31.4 t ADT: 4,000

ROUTE 108

Fair

Over: ROUTE 8 & RAMP 142

0.5 MI S OF ROUTE 15, CT

Built 1982 Load: 31.4 t ADT: 16,500

ROUTE 372

Fair

Over: ROUTE 15

400 E OF WRTHNGTON RIDGE, CT

Built 1989 Load: 31.4 t ADT: 14,600

ROUTE 11 NB

Fair

Over: WITCH MEADOW ROAD

3.0 MI N OF ROUTE 82, CT

Built 1971 Load: 31.6 t ADT: 4,550

ROUTE 15 NB

Fair

Over: WINTERGREEN AVE & BROOK

0.7 MI N OF ROUTE 69, CT

Built 1949 Load: 31.7 t ADT: 39,400

ROUTE 15 SB

Fair

Over: WINTERGREEN AVE & BROOK

0.7 MI N OF ROUTE 69, CT

Built 1949 Load: 31.7 t ADT: 39,960

ROUTE 177

Fair

Over: PAN AM RAILROAD

.4 MI SOUTH OF ROUTE 72, CT

Built 1961 Load: 31.7 t ADT: 11,100

ROUTE 8

Fair

Over: SR 846 NORTHBOUND

0.6 MILES NORTH OF I-84, CT

Built 1965 Load: 31.7 t ADT: 72,500

ROUTE 9 NORTHBOUND

Fair

Over: ROUTE 80 (ELM STREET)

ROUTE 9 EXIT NO. 5, CT

Built 1968 Load: 31.7 t ADT: 15,200

INTERSTATE-84

Fair

Over: WILLIMANTIC RIVER

0.1 MILE EAST TOLLAND TL, CT

Built 1953 Load: 31.7 t ADT: 58,100

MANSFIELD ROAD

Fair

Over: NATCHAUG RIVER

0.3 MILE WEST OF US RTE 6, CT

Built 1995 Load: 31.7 t ADT: 268

ESSEX STREET

Fair

Over: PRATT COVE

0.5 MI E OF ROUTE 154, CT

Built 1999 Load: 31.7 t ADT: 1,400

INTERSTATE-95

Fair

Over: SSR 493(WASHINGTON BLVD)

AT RAILROAD STATION, CT

Built 1958 Load: 31.8 t ADT: 115,800

TANNER MARSH ROAD

Fair

Over: INTERSTATE-95

400 FT N. OF US ROUTE 1, CT

Built 1958 Load: 31.8 t ADT: 2,685

INTERSTATE-395

Fair

Over: PLAINFIELD ROAD

.5 MI SOUTH OF ROUTE 14, CT

Built 1958 Load: 31.8 t ADT: 30,400

ROUTE 8

Fair

Over: ROUTE 8 RAMP 064

ROUTE 8 EXIT NO. 27, CT

Built 1960 Load: 31.8 t ADT: 60,400

ROUTE 15

Fair

Over: ROUTE 68

0.3 MI W OF US ROUTE 5, CT

Built 1946 Load: 31.8 t ADT: 65,800

ROUTE 372

Fair

Over: MATTABESSET RIVER

28 FT WEST OF CROMWELL TL, CT

Built 1933 Load: 31.8 t ADT: 11,000

BULLET HILL ROAD

Fair

Over: INTERSTATE 84 & RAMP 40

0.3 MI W OF US ROUTE 6, CT

Built 1963 Load: 31.8 t ADT: 5,324

TUNNEL ROAD

Fair

Over: INTERSTATE 84

0.8 MI E OF ROUTE 25, CT

Built 1962 Load: 31.8 t ADT: 899

INTERSTATE-91 SB

Fair

Over: ELM STREET

0.7 MILE SOUTH OF ROUTE 3, CT

Built 1964 Load: 31.8 t ADT: 75,450

I-84 RAMP 031

Fair

Over: INTERSTATE 84 WB

I-84 WB EXIT 11, CT

Built 1973 Load: 31.8 t ADT: 4,700

LONG SWAMP ROAD

Fair

Over: INTERSTATE-84

BETWEEN EXITS 36 & 37 I84, CT

Built 1969 Load: 31.8 t ADT: 465

ROUTE 2 EASTBOUND

Fair

Over: WALL STREET

0.4 MILE WEST OF ROUTE 16, CT

Built 1966 Load: 31.8 t ADT: 14,100

U.S. ROUTE 7 SB

Fair

Over: NORWALK RIVER

1.3 MILE NORTH OF I-95, CT

Built 1970 Load: 31.8 t ADT: 27,900

STRICKLAND ROAD

Fair

Over: COGINCHAUG RIVER

0.3 MI E OF RTE 157, CT

Built 1936 Load: 31.8 t ADT: 1,234

ROUTE 15 NB TR 808

Fair

Over: ROUTE 15 & ROUTE 8

ROUTE 15 NB EXIT NO. 52, CT

Built 1984 Load: 31.8 t ADT: 11,200

ROUTE 191

Fair

Over: BROAD BROOK

1.4 MILES SOUTH OF RT 140, CT

Built 1989 Load: 31.8 t ADT: 2,000

Showing 551-600 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.