US Bridges

RTE 20 over Wyomanock Creek

Fair

Columbia County, New York · 5.3 MI E Rens+col Cl · Structure no. 000000001016040

Built
1948
77 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
88 ft
1 main span
Daily traffic
5,476
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 20 over Wyomanock Creek is a steel stringer/multi-beam or girder carrying RTE 20 over Wyomanock Creek in Columbia County, New York. It was built in 1948, so it is 77 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 5,476 vehicles a day, roughly 11% of them trucks, projected to reach 5,528 by 2041. The structure is 88 ft (26.8 m) long and 52 ft wide. If it were closed, the detour would be 23 mi (37 km).

Location

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CarriesRTE 20
CrossesWyomanock Creek
Location5.3 MI E Rens+col Cl
RouteU.S. Route 20
CountyColumbia County
StateNew York
Coordinates42.46705, -73.41639
Functional classRural Principal Arterial - Other

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating71 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length88 ft (26.8 m)
Longest span80 ft (24.3 m)
Deck width52 ft (15.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,476 (2021)
Projected traffic5,528 by 2041
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed23 mi (37 km)
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 proposedDeck replacement with only incidental widening
Estimated improvement cost$4.8 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 20 over Wyomanock Creek built?

It was built in 1948, making it 77 years old in 2025.

What condition is RTE 20 over Wyomanock 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 September 2023.

How much traffic does RTE 20 over Wyomanock Creek carry?

About 5,476 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is RTE 20 over Wyomanock Creek?

The structure is 88 ft (26.8 m) long with a longest span of 80 ft (24.3 m) and a deck 52 ft wide.

Who owns RTE 20 over Wyomanock Creek?

It is owned by the State Highway Agency.