US Bridges

Back Mountain RD over Pifer Run

Fair

Frederick County, Virginia · 1.60 to 611 - 1.80 to 607 · Structure no. 000000000008186

Built
1953
72 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete
Length
29 ft
3 main spans
Daily traffic
2,031
2022 count
Owner
State
State Highway Agency

About this bridge

Back Mountain RD over Pifer Run is a concrete culvert carrying Back Mountain RD over Pifer Run in Frederick County, Virginia. It was built in 1953, so it is 72 years old, older than the Virginia average of 50.7 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 2,031 vehicles a day, roughly 1% of them trucks, projected to reach 2,965 by 2042. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesBack Mountain RD
CrossesPifer Run
Location1.60 to 611 - 1.80 to 607
RouteCounty Highway 600
CountyFrederick County
StateVirginia
Coordinates39.1425, -78.37974
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating68 US tons
Inventory rating41 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 20
Structure length29 ft (8.8 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,031 (2022)
Projected traffic2,965 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Back Mountain RD over Pifer Run built?

It was built in 1953, making it 72 years old in 2025.

What condition is Back Mountain RD over Pifer 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 December 2023.

How much traffic does Back Mountain RD over Pifer Run carry?

About 2,031 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Back Mountain RD over Pifer Run?

The structure is 29 ft (8.8 m) long with a longest span of 8 ft (2.4 m).

Who owns Back Mountain RD over Pifer Run?

It is owned by the State Highway Agency.