US Bridges

SR0422 over Little Buffalo Run

Fair

Butler County, Pennsylvania · West of Coyleville · Structure no. 000000000007968

Built
1956
69 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
21 ft
1 main span
Daily traffic
14,221
2024 count
Owner
State
State Highway Agency

About this bridge

SR0422 over Little Buffalo Run is a concrete culvert carrying SR0422 over Little Buffalo Run in Butler County, Pennsylvania. It was built in 1956, so it is 69 years old, older than the Pennsylvania average of 54.8 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 14,221 vehicles a day, roughly 15% of them trucks, projected to reach 14,348 by 2032. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesSR0422
CrossesLittle Buffalo Run
LocationWest of Coyleville
RouteU.S. Route 422
CountyButler County
StatePennsylvania
Coordinates40.85234, -79.76254
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 inspectionJune 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length21 ft (6.4 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 traffic14,221 (2024)
Projected traffic14,348 by 2032
Trucks15%
Lanes on structure4
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR0422 over Little Buffalo Run built?

It was built in 1956, making it 69 years old in 2025.

What condition is SR0422 over Little Buffalo Run 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 June 2023.

How much traffic does SR0422 over Little Buffalo Run carry?

About 14,221 vehicles per day (2024 count), of which roughly 15% are trucks.

How long is SR0422 over Little Buffalo Run?

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

Who owns SR0422 over Little Buffalo Run?

It is owned by the State Highway Agency.