US Bridges

SR 1021 over Buffalo Run

Good

Butler County, Pennsylvania · Rattigan NO.1 · Structure no. 000000000068079

Built
2023
2 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
30 ft
1 main span
Daily traffic
360
2024 count
Owner
State
State Highway Agency

About this bridge

SR 1021 over Buffalo Run is a concrete culvert carrying SR 1021 over Buffalo Run in Butler County, Pennsylvania. It was built in 2023, so it is 2 years old, younger than the Pennsylvania average of 54.8 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 360 vehicles a day, roughly 3% of them trucks, projected to reach 375 by 2032. The structure is 30 ft (9.1 m) long and 36 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSR 1021
CrossesBuffalo Run
LocationRattigan NO.1
RouteState Highway 0
CountyButler County
StatePennsylvania
Coordinates40.90108, -79.70743
Functional classRural Minor Collector

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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.3 US tons
Inventory rating45.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deck15 ft (4.7 m)

Traffic and service

Average daily traffic360 (2024)
Projected traffic375 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 1021 over Buffalo Run built?

It was built in 2023, making it 2 years old in 2025.

What condition is SR 1021 over Buffalo Run 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 September 2023.

How much traffic does SR 1021 over Buffalo Run carry?

About 360 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is SR 1021 over Buffalo Run?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 36 ft wide.

Who owns SR 1021 over Buffalo Run?

It is owned by the State Highway Agency.