Total Bridges
4,365
Public highway bridges in Connecticut
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
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.
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
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.
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
PoorOver: NONNEWAUG BROOK
300 E OF NONNEWAUG RD, CT
Built 1956 Load: 0.0 t ADT: 95
SHERMAN STREET
PoorOver: YANTIC RIVER
1 MILE WEST ROUTE 2, CT
Built 1920 Load: 3.9 t
ROUTE 191
PoorOver: SCANTIC RIVER
1.9 MI SOUTH OF RTE. 140, CT
Built 1925 Load: 5.8 t ADT: 1,500
RIVER BANK ROAD
PoorOver: EAST BRANCH MIANUS RIVER
0.8 MI N OF ROUTE 15, CT
Built 1957 Load: 8.1 t ADT: 1,500
TRACY ROAD #1
PoorOver: KITT BROOK
0.5 MI SOUTH OF ROUTE 14, CT
Built 1928 Load: 8.7 t ADT: 176
ROUTE 136
PoorOver: SAUGATUCK RIVER
BETWEEN I-95 EXIT 17 & 18, CT
Built 1870 Load: 10.0 t ADT: 14,500
All Bridges in Connecticut
ROUTE 20
FairOver: HUBBARD BROOK
3.66 M W OF ROUTE 179, CT
Built 1940 Load: 99.9 t ADT: 450
US ROUTE 202
FairOver: BAKERSVILLE BROOK
1.4 MI N OF TORRINGTON TL, CT
Built 1959 Load: 99.9 t ADT: 13,500
ROUTE 34
FairOver: WEPAWAUG RIVER
0.3 MI E OF ROUTE 15, CT
Built 1855 Load: 99.9 t ADT: 34,600
U.S. ROUTE 44
FairOver: MORGAN BROOK
150 EAST OF DEW ROAD, CT
Built 1947 Load: 99.9 t ADT: 13,900
US ROUTE 44
FairOver: MASHAMOQUET BROOK
0.9 MI WEST OF ROUTE 101, CT
Built 1941 Load: 99.9 t ADT: 6,600
ROUTE 9
FairOver: MATTABESSET RIVER
.2 MI NORTH EX 22 RTE9 SB, CT
Built 1962 Load: 99.9 t ADT: 72,200
ROUTE 9
FairOver: WILLOW BROOK
0.4 MILE NORTH OF EXIT 23, CT
Built 1962 Load: 99.9 t ADT: 91,800
INTERSTATE 84 & RO
FairOver: KOHANZA BROOK
ADJACENT TO THORPE ST., CT
Built 1962 Load: 99.9 t ADT: 130,800
INTERSTATE 84
FairOver: PADANARAM BROOK
0.3 MI WEST OF ROUTE 37, CT
Built 1960 Load: 99.9 t ADT: 126,900
INTERSTATE 84 EB
FairOver: BEAVER BROOK
.18 MI E OF US7 N.B., CT
Built 1962 Load: 99.9 t ADT: 41,200
INTERSTATE 84 WB
FairOver: BEAVER BROOK
.25 MILE EAST OF US 7(NB), CT
Built 1962 Load: 99.9 t ADT: 40,700
INTERSTATE-84
FairOver: POND BROOK
.79 MI E OF BROOKFIELD TL, CT
Built 1962 Load: 99.9 t ADT: 82,500
ROUTE 15
FairOver: PUMPING STATION OUTLET
0.3 MI N OF ROUTE 99, CT
Built 1941 Load: 99.9 t ADT: 52,600
INTERSTATE-84
FairOver: EIGHT MILE RIVER
1.0 MI E OF ROUTE 229, CT
Built 1963 Load: 99.9 t ADT: 99,300
INTERSTATE-84 WB
FairOver: QUINNIPIAC RIVER
.30 MI. WEST OF EXIT 32, CT
Built 1963 Load: 99.9 t ADT: 44,700
INTERSTATE-84 EB
FairOver: QUINNIPIAC RIVER
.3 MI WEST OF EXIT 32, CT
Built 1963 Load: 99.9 t ADT: 40,800
ROUTE 89
FairOver: FENTON RIVER
.97 MI NORTH OF RTE 195, CT
Built 1953 Load: 99.9 t ADT: 2,900
ROUTE 107
FairOver: NORWALK RIVER
150 FT S OF ROUTE 57, CT
Built 1953 Load: 99.9 t ADT: 10,400
ROUTE 132
FairOver: WEEKEEPEEMEE RIVER
1.1 MILE SOUTH OF RTE 61, CT
Built 1941 Load: 99.9 t ADT: 1,200
ROUTE 138
FairOver: PACHAUG RIVER
1 MI WEST OF ROUTE 49, CT
Built 1953 Load: 99.9 t ADT: 5,500
SR 609
FairOver: MOODUS RIVER
0.2 MI WEST OF ROUTE 149, CT
Built 1930 Load: 99.9 t ADT: 1,900
ROUTE 151
FairOver: PINE BROOK
0.8 MI N OF ROUTE 196, CT
Built 1930 Load: 99.9 t ADT: 1,800
INTERSTATE-91
FairOver: GOFF BROOK
200 NO. OF ROCKY HILL TL, CT
Built 1964 Load: 99.9 t ADT: 143,400
INTERSTATE-91
FairOver: BEAVER BROOK
0.5 MI N OF ROCKY HILL TL, CT
Built 1964 Load: 99.9 t ADT: 130,000
ROUTE 173
FairOver: PIPER BROOK
1.3 MI NORTH OF ROUTE 175, CT
Built 1937 Load: 99.9 t ADT: 14,100
SSR 476
FairOver: MILL CREEK
I-95 SB EXIT 18, CT
Built 1958 Load: 99.9 t ADT: 1,000
SR 501
FairOver: ROCKLEDGE BROOK
0.6 MILE SOUTH OF PARK RD, CT
Built 1965 Load: 99.9 t ADT: 27,200
INTERSTATE-95 NB
FairOver: STONY BROOK
0.6 MI N OF ROUTE 234, CT
Built 1964 Load: 99.9 t ADT: 17,500
INTERSTATE-95 SB
FairOver: STONY BROOK
0.6 MI N OF ROUTE 234, CT
Built 1964 Load: 99.9 t ADT: 22,400
INTERSTATE-95 SB
FairOver: ANGUILLA BROOK
2.6 MI N OF ROUTE 234, CT
Built 1964 Load: 99.9 t ADT: 18,600
INTERSTATE-91&RT15
FairOver: WILLOW BROOK
.12 MI NORTH OF E MAIN ST, CT
Built 1964 Load: 99.9 t ADT: 147,500
INTERSTATE-91
FairOver: SPOON SHOP BROOK
I-91NB 200 S. OF EXIT 18, CT
Built 1965 Load: 99.9 t ADT: 91,200
INTERSTATE-691 EB
FairOver: SPOON SHOP BROOK
0.2 MI W OF ROUTE 66, CT
Built 1965 Load: 99.9 t ADT: 23,300
INTERSTATE-691 WB
FairOver: SPOON SHOP BROOK
0.2 MI WEST OF ROUTE 66, CT
Built 1965 Load: 99.9 t ADT: 23,200
ROUTE 34
FairOver: HALFWAY RIVER
AT THE MONROE NEWTOWN TL., CT
Built 1963 Load: 99.9 t ADT: 8,000
ROUTE 2
FairOver: DARK HOLLOW BROOK
0.9 MI EAST OF WASSUC RD, CT
Built 1964 Load: 99.9 t ADT: 45,500
INTERSTATE-691
FairOver: HARBOR BROOK
ENTER @ BUNKER AVE PARK, CT
Built 1971 Load: 99.9 t ADT: 82,700
ROUTE 15
FairOver: CONVERSE POND BROOK
3.1 MI E OF NY STATE LINE, CT
Built 1935 Load: 99.9 t ADT: 57,020
ROUTE 15
FairOver: MILL BROOK
1.0 MI N OF ROUTE 10, CT
Built 1943 Load: 99.9 t ADT: 72,600
INTERSTATE-84
FairOver: HOCKANUM RIVER
0.2 MI EAST OF EXIT 56, CT
Built 1964 Load: 99.9 t ADT: 112,400
ROUTE 11 SB
FairOver: ROUTE 82
1.1 MI W OF ROUTE 85, CT
Built 1972 Load: 99.9 t
ROUTE 11 NB
FairOver: ROUTE 82
1.1 MI W OF ROUTE 85, CT
Built 1972 Load: 99.9 t
I-95 & LEDGE ROAD
FairOver: STONY BROOK
BETWEEN EXITS 10 & 11, CT
Built 1958 Load: 99.9 t ADT: 124,900
ROUTE 82
FairOver: ROARING BROOK
0.1 MI W OF ROUTE 148, CT
Built 1982 Load: 99.9 t ADT: 1,900
INTERSTATE-95
FairOver: JOHNSONS CREEK
0.1 MI NORTH OF ROUTE 113, CT
Built 1959 Load: 99.9 t ADT: 93,800
SOUTH MAIN STREET
FairOver: BEACON FALLS CANAL
0.3 MILE NO. OF ROUTE 42, CT
Built 1920 Load: 99.9 t ADT: 7,800
INTERSTATE-691 EB
FairOver: WILLOW BROOK
315 FT E OF ROUTE 15, CT
Built 1965 Load: 99.9 t ADT: 22,500
I-691 WB AND RAMPS
FairOver: WILLOW BROOK
I-691 WB EXIT NO. 9, CT
Built 1965 Load: 99.9 t ADT: 42,500
I-91 NB RAMP 016
FairOver: LITTLE RIVER
I-91 NB EXIT NO 8, CT
Built 1965 Load: 99.9 t ADT: 16,600
INTERSTATE-91
FairOver: LITTLE RIVER
0.2 MI N OF ROUTE 17, CT
Built 1965 Load: 99.9 t ADT: 50,400
Showing 2,851-2,900 of 4,365 bridges
Related
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.