US Bridges

RTE 20 over Tonawanda Ck Ovfl

Fair

Genesee County, New York · .5 MI E JCT US 20 & SH 98 · Structure no. 000000001015640

Built
1933
92 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
28 ft
2 main spans
Daily traffic
3,146
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 20 over Tonawanda Ck Ovfl is a concrete culvert carrying RTE 20 over Tonawanda Ck Ovfl in Genesee County, New York. It was built in 1933, 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 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 3,146 vehicles a day, roughly 28% of them trucks, projected to reach 3,175 by 2041. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
CarriesRTE 20
CrossesTonawanda Ck Ovfl
Location.5 MI E JCT US 20 & SH 98
RouteU.S. Route 20
CountyGenesee County
StateNew York
Coordinates42.90332, -78.24794
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.9 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span12 ft (3.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,146 (2020)
Projected traffic3,175 by 2041
Trucks28%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$355,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 20 over Tonawanda Ck Ovfl built?

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

What condition is RTE 20 over Tonawanda Ck Ovfl 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 July 2024.

How much traffic does RTE 20 over Tonawanda Ck Ovfl carry?

About 3,146 vehicles per day (2020 count), of which roughly 28% are trucks.

How long is RTE 20 over Tonawanda Ck Ovfl?

The structure is 28 ft (8.5 m) long with a longest span of 12 ft (3.6 m).

Who owns RTE 20 over Tonawanda Ck Ovfl?

It is owned by the State Highway Agency.