US Bridges

SR 1021 over Killbuck Run

Fair

Cambria County, Pennsylvania · 3 Mi.N.Of St.Augustine · Structure no. 000000000008568

Built
1961
64 years old, rebuilt 2022
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
33 ft
1 main span
Daily traffic
1,887
2024 count
Owner
State
State Highway Agency

About this bridge

SR 1021 over Killbuck Run is a prestressed concrete box beam or girders - multiple carrying SR 1021 over Killbuck Run in Cambria County, Pennsylvania. It was built in 1961 and reconstructed in 2022, so it is 64 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 1,887 vehicles a day, roughly 3% of them trucks, projected to reach 819 by 2032. The structure is 33 ft (10.1 m) long and 37 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesSR 1021
CrossesKillbuck Run
Location3 Mi.N.Of St.Augustine
RouteState Highway 0
Coordinates40.65978, -78.57861
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107 US tons
Inventory rating56 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span32 ft (9.8 m)
Deck width37 ft (11.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,887 (2024)
Projected traffic819 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 1021 over Killbuck Run built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2022.

What condition is SR 1021 over Killbuck 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 August 2024.

How much traffic does SR 1021 over Killbuck Run carry?

About 1,887 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is SR 1021 over Killbuck Run?

The structure is 33 ft (10.1 m) long with a longest span of 32 ft (9.8 m) and a deck 37 ft wide.

Who owns SR 1021 over Killbuck Run?

It is owned by the State Highway Agency.