US Bridges

RTE I90 over CSXT Rr/Amtrak Norfolk

Poor

Chautauqua County, New York · 7.1 MI SW of Dunkirk Int · Structure no. 000000005511232

Built
1955
70 years old
Condition
Poor
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
444 ft
5 main spans
Daily traffic
8,444
2020 count
Owner
Toll Authority
State Toll Authority

About this bridge

RTE I90 over CSXT Rr/Amtrak Norfolk is a steel stringer/multi-beam or girder carrying RTE I90 over CSXT Rr/Amtrak Norfolk in Chautauqua County, New York. It was built in 1955, so it is 70 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.

It carries about 8,444 vehicles a day, roughly 49% of them trucks, projected to reach 10,057 by 2041. The structure is 444 ft (135.3 m) long and 56 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesRTE I90
CrossesCSXT Rr/Amtrak Norfolk
Location7.1 MI SW of Dunkirk Int
RouteInterstate 90
CountyChautauqua County
StateNew York
Coordinates42.41211, -79.42548
Functional classRural Principal Arterial - Interstate

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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.8 US tons
Inventory rating43.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadHS 25 or greater
Structure length444 ft (135.3 m)
Longest span98 ft (29.9 m)
Deck width56 ft (17.1 m)
Roadway width52 ft (16 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,444 (2020)
Projected traffic10,057 by 2041
Trucks49%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed0.6 mi (1 km)
TollOn an Interstate toll segment under Secretarial agreement
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$15.3 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE I90 over CSXT Rr/Amtrak Norfolk built?

It was built in 1955, making it 70 years old in 2025.

What condition is RTE I90 over CSXT Rr/Amtrak Norfolk 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 December 2023.

How much traffic does RTE I90 over CSXT Rr/Amtrak Norfolk carry?

About 8,444 vehicles per day (2020 count), of which roughly 49% are trucks.

How long is RTE I90 over CSXT Rr/Amtrak Norfolk?

The structure is 444 ft (135.3 m) long with a longest span of 98 ft (29.9 m) and a deck 56 ft wide.

Who owns RTE I90 over CSXT Rr/Amtrak Norfolk?

It is owned by the State Toll Authority.