US Bridges

County Road 31 over Plattekill Creek

Fair

Ulster County, New York · 4.5 MI SW of Saugerties · Structure no. 000000003346570

Built
1931
94 years old, rebuilt 2015
Condition
Fair
inspected June 2023
Type
Truss - Thru
Steel
Length
127 ft
1 main span
Daily traffic
4,615
2018 count
Owner
County
County Highway Agency

About this bridge

County Road 31 over Plattekill Creek is a steel truss - thru carrying County Road 31 over Plattekill Creek in Ulster County, New York. It was built in 1931 and reconstructed in 2015, so it is 94 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 4,615 vehicles a day, roughly 6% of them trucks, projected to reach 5,710 by 2041. The structure is 127 ft (38.7 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCounty Road 31
CrossesPlattekill Creek
Location4.5 MI SW of Saugerties
RouteCounty Highway 0
CountyUlster County
StateNew York
Coordinates42.01953, -73.99664
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating39 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length127 ft (38.7 m)
Longest span124 ft (37.8 m)
Deck width27 ft (8.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,615 (2018)
Projected traffic5,710 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 31 over Plattekill Creek built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 2015.

What condition is County Road 31 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 June 2023.

How much traffic does County Road 31 over Plattekill Creek carry?

About 4,615 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is County Road 31 over Plattekill Creek?

The structure is 127 ft (38.7 m) long with a longest span of 124 ft (37.8 m) and a deck 27 ft wide.

Who owns County Road 31 over Plattekill Creek?

It is owned by the County Highway Agency.