US Bridges

SR 4021 over Higgins Run

Poor

Somerset County, Pennsylvania · 3 Mi.Nw.Of Stoystown · Structure no. 000000000031760

Built
1908
117 years old
Condition
Poor
inspected March 2023
Type
Arch - Deck
Concrete
Length
33 ft
1 main span
Daily traffic
477
2024 count
Owner
State
State Highway Agency

About this bridge

SR 4021 over Higgins Run is a concrete arch - deck carrying SR 4021 over Higgins Run in Somerset County, Pennsylvania. It was built in 1908, so it is 117 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 477 vehicles a day, projected to reach 387 by 2032. The structure is 33 ft (10.1 m) long and 16 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesSR 4021
CrossesHiggins Run
Location3 Mi.Nw.Of Stoystown
RouteState Highway 0
CountySomerset County
StatePennsylvania
Coordinates40.1407, -78.9677
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 15
Structure length33 ft (10.1 m)
Longest span30 ft (9.1 m)
Deck width16 ft (4.9 m)
Roadway width13 ft (4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic477 (2024)
Projected traffic387 by 2032
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$646,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 4021 over Higgins Run built?

It was built in 1908, making it 117 years old in 2025.

What condition is SR 4021 over Higgins Run in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2023.

How much traffic does SR 4021 over Higgins Run carry?

About 477 vehicles per day (2024 count).

How long is SR 4021 over Higgins Run?

The structure is 33 ft (10.1 m) long with a longest span of 30 ft (9.1 m) and a deck 16 ft wide.

Who owns SR 4021 over Higgins Run?

It is owned by the State Highway Agency.