US Bridges

RTE 90I over Tonawanda Creek

Fair

Genesee County, New York · I90 WB over Tonawanda Crk · Structure no. 000000005516882

Built
1954
71 years old, rebuilt 2004
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
181 ft
2 main spans
Daily traffic
18,602
2020 count
Owner
Toll Authority
State Toll Authority

About this bridge

RTE 90I over Tonawanda Creek is a steel continuous stringer/multi-beam or girder carrying RTE 90I over Tonawanda Creek in Genesee County, New York. It was built in 1954 and reconstructed in 2004, so it is 71 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 18,602 vehicles a day, roughly 33% of them trucks, projected to reach 22,817 by 2041. The structure is 181 ft (55.1 m) long and 59 ft wide.

Location

Open in Google Maps
CarriesRTE 90I
CrossesTonawanda Creek
LocationI90 WB over Tonawanda Crk
RouteInterstate 90
CountyGenesee County
StateNew York
Coordinates43.01305, -78.32332
Functional classRural 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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 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 rating91.1 US tons
Inventory rating55 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length181 ft (55.1 m)
Longest span88 ft (26.8 m)
Deck width59 ft (18 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,602 (2020)
Projected traffic22,817 by 2041
Trucks33%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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$4.5 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 90I over Tonawanda Creek built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 2004.

What condition is RTE 90I over Tonawanda Creek 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 2024.

How much traffic does RTE 90I over Tonawanda Creek carry?

About 18,602 vehicles per day (2020 count), of which roughly 33% are trucks.

How long is RTE 90I over Tonawanda Creek?

The structure is 181 ft (55.1 m) long with a longest span of 88 ft (26.8 m) and a deck 59 ft wide.

Who owns RTE 90I over Tonawanda Creek?

It is owned by the State Toll Authority.