US Bridges

RTE 20A over Oatka Creek

Good

Wyoming County, New York · 0.2 MI W JCT Rts 20A & 19 · Structure no. 000000001016160

Built
1998
27 years old
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
64 ft
1 main span
Daily traffic
5,838
2019 count
Owner
State
State Highway Agency

About this bridge

RTE 20A over Oatka Creek is a prestressed concrete box beam or girders - multiple carrying RTE 20A over Oatka Creek in Wyoming County, New York. It was built in 1998, so it is 27 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,838 vehicles a day, roughly 6% of them trucks, projected to reach 5,874 by 2041. The structure is 64 ft (19.6 m) long and 55 ft wide. If it were closed, the detour would be 34.8 mi (56 km).

CarriesRTE 20A
CrossesOatka Creek
Location0.2 MI W JCT Rts 20A & 19
RouteU.S. Route 20A
Coordinates42.74023, -78.13583
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating101 US tons
Inventory rating60 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length64 ft (19.6 m)
Longest span62 ft (18.8 m)
Deck width55 ft (16.8 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,838 (2019)
Projected traffic5,874 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed34.8 mi (56 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$2 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 20A over Oatka Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is RTE 20A over Oatka Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does RTE 20A over Oatka Creek carry?

About 5,838 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is RTE 20A over Oatka Creek?

The structure is 64 ft (19.6 m) long with a longest span of 62 ft (18.8 m) and a deck 55 ft wide.

Who owns RTE 20A over Oatka Creek?

It is owned by the State Highway Agency.