US Bridges

RTE 20 over 90IX RTE I90

Fair

Chautauqua County, New York · JCT Rt 20 + I-90 · Structure no. 000000001015410

Built
1956
69 years old, rebuilt 2013
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
245 ft
4 main spans
Daily traffic
4,579
2020 count
Owner
Toll Authority
State Toll Authority

About this bridge

RTE 20 over 90IX RTE I90 is a steel continuous stringer/multi-beam or girder carrying RTE 20 over 90IX RTE I90 in Chautauqua County, New York. It was built in 1956 and reconstructed in 2013, so it is 69 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 4,579 vehicles a day, roughly 6% of them trucks, projected to reach 4,622 by 2041. The structure is 245 ft (74.7 m) long and 43 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesRTE 20
Crosses90IX RTE I90
LocationJCT Rt 20 + I-90
RouteU.S. Route 20
CountyChautauqua County
StateNew York
Coordinates42.51242, -79.18919
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating49.1 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 25 or greater
Structure length245 ft (74.7 m)
Longest span75 ft (22.9 m)
Deck width43 ft (13.1 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,579 (2020)
Projected traffic4,622 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$6.6 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 20 over 90IX RTE I90 built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2013.

What condition is RTE 20 over 90IX RTE I90 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 October 2023.

How much traffic does RTE 20 over 90IX RTE I90 carry?

About 4,579 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is RTE 20 over 90IX RTE I90?

The structure is 245 ft (74.7 m) long with a longest span of 75 ft (22.9 m) and a deck 43 ft wide.

Who owns RTE 20 over 90IX RTE I90?

It is owned by the State Toll Authority.