US Bridges

RTE 426 over French Creek

FairPosted for load

Chautauqua County, New York · 3.8 MI N JCT Rts 426+ 474 · Structure no. 000000001048370

Built
1931
94 years old, rebuilt 1992
Condition
Fair
inspected September 2023
Type
Truss - Thru
Steel
Length
122 ft
1 main span
Daily traffic
1,113
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 426 over French Creek is a steel truss - thru carrying RTE 426 over French Creek in Chautauqua County, New York. It was built in 1931 and reconstructed in 1992, so it is 94 years old, older than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for other load-capacity restriction.

It carries about 1,113 vehicles a day, roughly 13% of them trucks, projected to reach 1,124 by 2041. The structure is 122 ft (37.2 m) long and 26 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesRTE 426
CrossesFrench Creek
Location3.8 MI N JCT Rts 426+ 474
RouteState Highway 426
Coordinates42.06192, -79.71646
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating66 US tons
Inventory rating40 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length122 ft (37.2 m)
Longest span120 ft (36.5 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,113 (2020)
Projected traffic1,124 by 2041
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$5.2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 426 over French Creek built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1992.

What condition is RTE 426 over French Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does RTE 426 over French Creek carry?

About 1,113 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is RTE 426 over French Creek?

The structure is 122 ft (37.2 m) long with a longest span of 120 ft (36.5 m) and a deck 26 ft wide.

Who owns RTE 426 over French Creek?

It is owned by the State Highway Agency.