US Bridges

RTE I87 over Plattekill Creek

Fair

Ulster County, New York · 0.9 MI E of Ruby · Structure no. 000000005515569

Built
1950
75 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
149 ft
2 main spans
Daily traffic
33,706
2018 count
Owner
Toll Authority
State Toll Authority

About this bridge

RTE I87 over Plattekill Creek is a steel stringer/multi-beam or girder carrying RTE I87 over Plattekill Creek in Ulster County, New York. It was built in 1950, so it is 75 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 33,706 vehicles a day, roughly 19% of them trucks, projected to reach 57,077 by 2041. The structure is 149 ft (45.4 m) long and 114 ft wide. If it were closed, the detour would be 25.5 mi (41 km).

Location

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CarriesRTE I87
CrossesPlattekill Creek
Location0.9 MI E of Ruby
RouteInterstate 87
CountyUlster County
StateNew York
Coordinates42.02046, -73.99788
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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56 US tons
Inventory rating33 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length149 ft (45.4 m)
Longest span72 ft (21.9 m)
Deck width114 ft (34.6 m)
Roadway width106 ft (32.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,706 (2018)
Projected traffic57,077 by 2041
Trucks19%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed25.5 mi (41 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$13.9 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE I87 over Plattekill Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is RTE I87 over Plattekill 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 December 2023.

How much traffic does RTE I87 over Plattekill Creek carry?

About 33,706 vehicles per day (2018 count), of which roughly 19% are trucks.

How long is RTE I87 over Plattekill Creek?

The structure is 149 ft (45.4 m) long with a longest span of 72 ft (21.9 m) and a deck 114 ft wide.

Who owns RTE I87 over Plattekill Creek?

It is owned by the State Toll Authority.