US Bridges

RTE 417 over Allegheny River

Fair

Cattaraugus County, New York · JCT RTE 417 & Allegheny R · Structure no. 000000006012240

Built
1957
68 years old, rebuilt 1991
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
654 ft
7 main spans
Daily traffic
5,750
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 417 over Allegheny River is a steel stringer/multi-beam or girder carrying RTE 417 over Allegheny River in Cattaraugus County, New York. It was built in 1957 and reconstructed in 1991, so it is 68 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 5,750 vehicles a day, roughly 8% of them trucks, projected to reach 5,777 by 2041. The structure is 654 ft (199.3 m) long and 42 ft wide. If it were closed, the detour would be 13.7 mi (22 km).

Location

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CarriesRTE 417
CrossesAllegheny River
LocationJCT RTE 417 & Allegheny R
RouteState Highway 417
CountyCattaraugus County
StateNew York
Coordinates42.154, -78.70646
Functional classUrban Other Principal Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating83 US tons
Inventory rating49.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length654 ft (199.3 m)
Longest span96 ft (29.3 m)
Deck width42 ft (12.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,750 (2021)
Projected traffic5,777 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed13.7 mi (22 km)
TollOn a free road
National Highway SystemYes

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$16.4 million (2024 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was RTE 417 over Allegheny River built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1991.

What condition is RTE 417 over Allegheny River 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 August 2024.

How much traffic does RTE 417 over Allegheny River carry?

About 5,750 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is RTE 417 over Allegheny River?

The structure is 654 ft (199.3 m) long with a longest span of 96 ft (29.3 m) and a deck 42 ft wide.

Who owns RTE 417 over Allegheny River?

It is owned by the State Highway Agency.