US Bridges

RTE I90 over Buffalo Southern RR

Fair

Erie County, New York · 1.7 MI NE of Int 57 · Structure no. 000000005512481

Built
1957
68 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
36 ft
1 main span
Daily traffic
18,160
2014 count
Owner
Toll Authority
State Toll Authority

About this bridge

RTE I90 over Buffalo Southern RR is a steel stringer/multi-beam or girder carrying RTE I90 over Buffalo Southern RR in Erie 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 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 18,160 vehicles a day, roughly 19% of them trucks. The structure is 36 ft (11 m) long and 56 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesRTE I90
CrossesBuffalo Southern RR
Location1.7 MI NE of Int 57
RouteInterstate 90
CountyErie County
StateNew York
Coordinates42.76454, -78.8196
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length36 ft (11 m)
Longest span35 ft (10.7 m)
Deck width56 ft (17.1 m)
Roadway width52 ft (16 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,160 (2014)
Projected traffic—
Trucks19%
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$5.5 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE I90 over Buffalo Southern RR built?

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

What condition is RTE I90 over Buffalo Southern RR 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 August 2023.

How much traffic does RTE I90 over Buffalo Southern RR carry?

About 18,160 vehicles per day (2014 count), of which roughly 19% are trucks.

How long is RTE I90 over Buffalo Southern RR?

The structure is 36 ft (11 m) long with a longest span of 35 ft (10.7 m) and a deck 56 ft wide.

Who owns RTE I90 over Buffalo Southern RR?

It is owned by the State Toll Authority.