US Bridges

Limestone School R over Tributary of Potomac Rv.

Good

Loudoun County, Virginia · 00.35FR656/01.80TO15 · Structure no. 000000000024691

Built
1996
29 years old
Condition
Good
inspected March 2023
Type
Arch - Deck
Concrete
Length
20 ft
1 main span
Daily traffic
211
2014 count
Owner
State
State Highway Agency

About this bridge

Limestone School R over Tributary of Potomac Rv. is a concrete arch - deck carrying Limestone School R over Tributary of Potomac Rv. in Loudoun County, Virginia. It was built in 1996, so it is 29 years old, younger than the Virginia average of 50.7 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 211 vehicles a day, projected to reach 342 by 2045. The structure is 20 ft (6.1 m) long and 24 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesLimestone School R
CrossesTributary of Potomac Rv.
Location00.35FR656/01.80TO15
RouteCounty Highway 661
CountyLoudoun County
StateVirginia
Coordinates39.1865, -77.51141
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.2 US tons
Inventory rating58.8 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width24 ft (7.3 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic211 (2014)
Projected traffic342 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-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 statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$75 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Limestone School R over Tributary of Potomac Rv. built?

It was built in 1996, making it 29 years old in 2025.

What condition is Limestone School R over Tributary of Potomac Rv. 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 March 2023.

How much traffic does Limestone School R over Tributary of Potomac Rv. carry?

About 211 vehicles per day (2014 count).

How long is Limestone School R over Tributary of Potomac Rv.?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m) and a deck 24 ft wide.

Who owns Limestone School R over Tributary of Potomac Rv.?

It is owned by the State Highway Agency.