US Bridges

RTE 20A over Stony Bottm Creek

Good

Erie County, New York · 5.6 MI E JCT US20A &SH400 · Structure no. 000000001016110

Built
1948
77 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
22 ft
1 main span
Daily traffic
4,370
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 20A over Stony Bottm Creek is a concrete culvert carrying RTE 20A over Stony Bottm Creek in Erie 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 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 4,370 vehicles a day, roughly 8% of them trucks, projected to reach 4,609 by 2041. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 13.7 mi (22 km).

CarriesRTE 20A
CrossesStony Bottm Creek
Location5.6 MI E JCT US20A &SH400
RouteU.S. Route 20A
Coordinates42.7697, -78.48747
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating85 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span21 ft (6.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,370 (2021)
Projected traffic4,609 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13.7 mi (22 km)
TollOn a free road
National Highway SystemNo

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$484,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 20A over Stony Bottm Creek built?

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

What condition is RTE 20A over Stony Bottm 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 April 2023.

How much traffic does RTE 20A over Stony Bottm Creek carry?

About 4,370 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is RTE 20A over Stony Bottm Creek?

The structure is 22 ft (6.7 m) long with a longest span of 21 ft (6.4 m).

Who owns RTE 20A over Stony Bottm Creek?

It is owned by the State Highway Agency.