US Bridges

Limestone School R over Tributary Limestone Br.

FairPosted for load

Loudoun County, Virginia · 01.75FR656/00.40TO15 · Structure no. 000000000011222

Built
1917
108 years old
Condition
Fair
inspected June 2023
Type
Arch - Deck
Concrete
Length
49 ft
1 main span
Daily traffic
211
2014 count
Owner
State
State Highway Agency

About this bridge

Limestone School R over Tributary Limestone Br. is a concrete arch - deck carrying Limestone School R over Tributary Limestone Br. in Loudoun County, Virginia. It was built in 1917, so it is 108 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. Its operating status is: posted for load restriction.

It carries about 211 vehicles a day, projected to reach 342 by 2045. The structure is 49 ft (14.9 m) long and 14 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesLimestone School R
CrossesTributary Limestone Br.
Location01.75FR656/00.40TO15
RouteCounty Highway 661
CountyLoudoun County
StateVirginia
Coordinates39.17429, -77.52969
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating27.7 US tons
Inventory rating22.4 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length49 ft (14.9 m)
Longest span49 ft (14.9 m)
Deck width14 ft (4.4 m)
Roadway width11 ft (3.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic211 (2014)
Projected traffic342 by 2045
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$320 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Limestone School R over Tributary Limestone Br. built?

It was built in 1917, making it 108 years old in 2025.

What condition is Limestone School R over Tributary Limestone Br. 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 2023.

How much traffic does Limestone School R over Tributary Limestone Br. carry?

About 211 vehicles per day (2014 count).

How long is Limestone School R over Tributary Limestone Br.?

The structure is 49 ft (14.9 m) long with a longest span of 49 ft (14.9 m) and a deck 14 ft wide.

Who owns Limestone School R over Tributary Limestone Br.?

It is owned by the State Highway Agency.