US Bridges

RTE 456 over RTE I87 RTE I87

Fair

Clinton County, New York · 3.7 MI N JCT I87 & SH 314 · Structure no. 000000001034050

Built
1960
65 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
353 ft
7 main spans
Daily traffic
2,668
2018 count
Owner
State
State Highway Agency

About this bridge

RTE 456 over RTE I87 RTE I87 is a prestressed concrete box beam or girders - multiple carrying RTE 456 over RTE I87 RTE I87 in Clinton County, New York. It was built in 1960, so it is 65 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 2,668 vehicles a day, roughly 12% of them trucks, projected to reach 2,783 by 2041. The structure is 353 ft (107.6 m) long and 36 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesRTE 456
CrossesRTE I87 RTE I87
Location3.7 MI N JCT I87 & SH 314
RouteState Highway 456
CountyClinton County
StateNew York
Coordinates44.78089, -73.43788
Functional classRural Major Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating29 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckNot applicable
Main spans7
Design loadHS 20
Structure length353 ft (107.6 m)
Longest span54 ft (16.5 m)
Deck width36 ft (10.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,668 (2018)
Projected traffic2,783 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

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$3.1 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 456 over RTE I87 RTE I87 built?

It was built in 1960, making it 65 years old in 2025.

What condition is RTE 456 over RTE I87 RTE I87 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 April 2024.

How much traffic does RTE 456 over RTE I87 RTE I87 carry?

About 2,668 vehicles per day (2018 count), of which roughly 12% are trucks.

How long is RTE 456 over RTE I87 RTE I87?

The structure is 353 ft (107.6 m) long with a longest span of 54 ft (16.5 m) and a deck 36 ft wide.

Who owns RTE 456 over RTE I87 RTE I87?

It is owned by the State Highway Agency.