US Bridges

RTE 400 over RTE 20 RTE 78

Fair

Erie County, New York · JCT Rts 400 + 20 · Structure no. 000000001047662

Built
1968
57 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
206 ft
3 main spans
Daily traffic
16,351
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 400 over RTE 20 RTE 78 is a steel continuous stringer/multi-beam or girder carrying RTE 400 over RTE 20 RTE 78 in Erie County, New York. It was built in 1968, so it is 57 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 16,351 vehicles a day, roughly 8% of them trucks, projected to reach 18,947 by 2041. The structure is 206 ft (62.8 m) long and 43 ft wide.

Location

Open in Google Maps
CarriesRTE 400
CrossesRTE 20 RTE 78
LocationJCT Rts 400 + 20
RouteState Highway 400
CountyErie County
StateNew York
Coordinates42.83439, -78.69699
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment7: Better than present minimum criteria
Operating rating70 US tons
Inventory rating51 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length206 ft (62.8 m)
Longest span111 ft (33.8 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,351 (2021)
Projected traffic18,947 by 2041
Trucks8%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$5.7 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 400 over RTE 20 RTE 78 built?

It was built in 1968, making it 57 years old in 2025.

What condition is RTE 400 over RTE 20 RTE 78 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 May 2023.

How much traffic does RTE 400 over RTE 20 RTE 78 carry?

About 16,351 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is RTE 400 over RTE 20 RTE 78?

The structure is 206 ft (62.8 m) long with a longest span of 111 ft (33.8 m) and a deck 43 ft wide.

Who owns RTE 400 over RTE 20 RTE 78?

It is owned by the State Highway Agency.