US Bridges

North RD over 90IX RTE I90

PoorPosted for load

Chautauqua County, New York · 5.7 MI SW of Dunkirk Int · Structure no. 000000005511360

Built
1957
68 years old
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
310 ft
5 main spans
Daily traffic
351
2021 count
Owner
Toll Authority
State Toll Authority

About this bridge

North RD over 90IX RTE I90 is a steel stringer/multi-beam or girder carrying North RD over 90IX RTE I90 in Chautauqua County, New York. It was built in 1957, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 351 vehicles a day, roughly 4% of them trucks, projected to reach 491 by 2041. The structure is 310 ft (94.5 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesNorth RD
Crosses90IX RTE I90
Location5.7 MI SW of Dunkirk Int
CountyChautauqua County
StateNew York
Coordinates42.42187, -79.39996
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadHS 25 or greater
Structure length310 ft (94.5 m)
Longest span69 ft (21 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic351 (2021)
Projected traffic491 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was North RD over 90IX RTE I90 built?

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

What condition is North RD over 90IX RTE I90 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does North RD over 90IX RTE I90 carry?

About 351 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is North RD over 90IX RTE I90?

The structure is 310 ft (94.5 m) long with a longest span of 69 ft (21 m) and a deck 31 ft wide.

Who owns North RD over 90IX RTE I90?

It is owned by the State Toll Authority.