US Bridges

RTE 20 over Oatka Creek

Good

Genesee County, New York · JCT RTE 20 + Oatka Ck · Structure no. 000000001015680

Built
1933
92 years old, rebuilt 2019
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
122 ft
1 main span
Daily traffic
2,314
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 20 over Oatka Creek is a steel stringer/multi-beam or girder carrying RTE 20 over Oatka Creek in Genesee County, New York. It was built in 1933 and reconstructed in 2019, so it is 92 years old, older 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,314 vehicles a day, roughly 16% of them trucks, projected to reach 2,335 by 2041. The structure is 122 ft (37.2 m) long and 42 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesRTE 20
CrossesOatka Creek
LocationJCT RTE 20 + Oatka Ck
RouteU.S. Route 20
Coordinates42.90872, -78.02879
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89 US tons
Inventory rating53 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length122 ft (37.2 m)
Longest span115 ft (35 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,314 (2020)
Projected traffic2,335 by 2041
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$3.1 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 20 over Oatka Creek built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 2019.

What condition is RTE 20 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 August 2023.

How much traffic does RTE 20 over Oatka Creek carry?

About 2,314 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is RTE 20 over Oatka Creek?

The structure is 122 ft (37.2 m) long with a longest span of 115 ft (35 m) and a deck 42 ft wide.

Who owns RTE 20 over Oatka Creek?

It is owned by the State Highway Agency.