US Bridges

SR 4001 over Alyworth Run

Fair

Elk County, Pennsylvania · Ridgway · Structure no. 000000000015713

Built
1987
38 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
798
2024 count
Owner
State
State Highway Agency

About this bridge

SR 4001 over Alyworth Run is a concrete culvert carrying SR 4001 over Alyworth Run in Elk County, Pennsylvania. It was built in 1987, so it is 38 years old, younger 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 798 vehicles a day, roughly 1% of them trucks, projected to reach 708 by 2044. The structure is 25 ft (7.6 m) long and 31 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSR 4001
CrossesAlyworth Run
LocationRidgway
RouteState Highway 0
CountyElk County
StatePennsylvania
Coordinates41.42199, -78.75024
Functional classRural Minor 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating85 US tons
Inventory rating51 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length25 ft (7.6 m)
Longest span11 ft (3.4 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic798 (2024)
Projected traffic708 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 4001 over Alyworth Run built?

It was built in 1987, making it 38 years old in 2025.

What condition is SR 4001 over Alyworth 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 2024.

How much traffic does SR 4001 over Alyworth Run carry?

About 798 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is SR 4001 over Alyworth Run?

The structure is 25 ft (7.6 m) long with a longest span of 11 ft (3.4 m) and a deck 31 ft wide.

Who owns SR 4001 over Alyworth Run?

It is owned by the State Highway Agency.