US Bridges

I-81 SR 0081 over Mountain Run

Good

Franklin County, Pennsylvania · 0.5 MI N. of Scotland · Structure no. 000000000041923

Built
2003
22 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
25 ft
1 main span
Daily traffic
49,536
2024 count
Owner
State
State Highway Agency

About this bridge

I-81 SR 0081 over Mountain Run is a concrete culvert carrying I-81 SR 0081 over Mountain Run in Franklin County, Pennsylvania. It was built in 2003, so it is 22 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 49,536 vehicles a day, roughly 30% of them trucks, projected to reach 48,014 by 2032. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-81 SR 0081
CrossesMountain Run
Location0.5 MI N. of Scotland
RouteInterstate 81
CountyFranklin County
StatePennsylvania
Coordinates39.9729, -77.57304
Functional classUrban Principal Arterial - Interstate

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating103 US tons
Inventory rating58 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span25 ft (7.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49,536 (2024)
Projected traffic48,014 by 2032
Trucks30%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-81 SR 0081 over Mountain Run built?

It was built in 2003, making it 22 years old in 2025.

What condition is I-81 SR 0081 over Mountain 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 July 2024.

How much traffic does I-81 SR 0081 over Mountain Run carry?

About 49,536 vehicles per day (2024 count), of which roughly 30% are trucks.

How long is I-81 SR 0081 over Mountain Run?

The structure is 25 ft (7.6 m) long with a longest span of 25 ft (7.6 m).

Who owns I-81 SR 0081 over Mountain Run?

It is owned by the State Highway Agency.