US Bridges

Sawmill Lane over Piney Run

Fair

Loudoun County, Virginia · 00.35FR.END/00.20TO685 · Structure no. 000000000011270

Built
1964
61 years old, rebuilt 2014
Condition
Fair
inspected December 2024
Type
Slab
Wood or Timber
Length
26 ft
1 main span
Daily traffic
68
2014 count
Owner
State
State Highway Agency

About this bridge

Sawmill Lane over Piney Run is a wood or timber slab carrying Sawmill Lane over Piney Run in Loudoun County, Virginia. It was built in 1964 and reconstructed in 2014, so it is 61 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 5 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 68 vehicles a day, projected to reach 110 by 2042. The structure is 26 ft (7.8 m) long and 23 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesSawmill Lane
CrossesPiney Run
Location00.35FR.END/00.20TO685
RouteCounty Highway 686
CountyLoudoun County
StateVirginia
Coordinates39.27694, -77.73152
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating99 US tons
Inventory rating94.8 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length26 ft (7.8 m)
Longest span20 ft (6.2 m)
Deck width23 ft (7.1 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic68 (2014)
Projected traffic110 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$26 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Sawmill Lane over Piney Run built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2014.

What condition is Sawmill Lane over Piney 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 2024.

How much traffic does Sawmill Lane over Piney Run carry?

About 68 vehicles per day (2014 count).

How long is Sawmill Lane over Piney Run?

The structure is 26 ft (7.8 m) long with a longest span of 20 ft (6.2 m) and a deck 23 ft wide.

Who owns Sawmill Lane over Piney Run?

It is owned by the State Highway Agency.