US Bridges

RTE I90 over Eighteen Mile Creek Sha

Fair

Erie County, New York · 2.7 Mi. NE of INT.57A · Structure no. 000000005512412

Built
1957
68 years old, rebuilt 2012
Condition
Fair
inspected September 2024
Type
Girder and Floorbeam System
Steel
Length
660 ft
5 main spans
Daily traffic
11,777
2017 count
Owner
Toll Authority
State Toll Authority

About this bridge

RTE I90 over Eighteen Mile Creek Sha is a steel girder and floorbeam system carrying RTE I90 over Eighteen Mile Creek Sha in Erie County, New York. It was built in 1957 and reconstructed in 2012, 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 5 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 11,777 vehicles a day, roughly 34% of them trucks, projected to reach 13,198 by 2041. The structure is 660 ft (201.2 m) long and 56 ft wide.

Location

Open in Google Maps
CarriesRTE I90
CrossesEighteen Mile Creek Sha
Location2.7 Mi. NE of INT.57A
RouteInterstate 90
CountyErie County
StateNew York
Coordinates42.6922, -78.93186
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating36 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadHS 25 or greater
Structure length660 ft (201.2 m)
Longest span150 ft (45.7 m)
Deck width56 ft (17.1 m)
Roadway width49 ft (14.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,777 (2017)
Projected traffic13,198 by 2041
Trucks34%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed—
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$23.2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE I90 over Eighteen Mile Creek Sha built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2012.

What condition is RTE I90 over Eighteen Mile Creek Sha 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 2024.

How much traffic does RTE I90 over Eighteen Mile Creek Sha carry?

About 11,777 vehicles per day (2017 count), of which roughly 34% are trucks.

How long is RTE I90 over Eighteen Mile Creek Sha?

The structure is 660 ft (201.2 m) long with a longest span of 150 ft (45.7 m) and a deck 56 ft wide.

Who owns RTE I90 over Eighteen Mile Creek Sha?

It is owned by the State Toll Authority.