US Bridges

Saint Louis Road over N/F Beaverdam Creek

Fair

Loudoun County, Virginia · 00.40FR734/00.90TO630 · Structure no. 000000000011156

Built
1961
64 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
97 ft
2 main spans
Daily traffic
2,699
2022 count
Owner
State
State Highway Agency

About this bridge

Saint Louis Road over N/F Beaverdam Creek is a concrete stringer/multi-beam or girder carrying Saint Louis Road over N/F Beaverdam Creek in Loudoun County, Virginia. It was built in 1961, so it is 64 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 2,699 vehicles a day, roughly 2% of them trucks, projected to reach 3,208 by 2045. The structure is 97 ft (29.6 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSaint Louis Road
CrossesN/F Beaverdam Creek
Location00.40FR734/00.90TO630
RouteCounty Highway 611
CountyLoudoun County
StateVirginia
Coordinates39.06175, -77.75401
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
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58.5 US tons
Inventory rating45.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length97 ft (29.6 m)
Longest span48 ft (14.6 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,699 (2022)
Projected traffic3,208 by 2045
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 with deck rehabilitation or replacement
Estimated improvement cost$700 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Saint Louis Road over N/F Beaverdam Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is Saint Louis Road over N/F Beaverdam Creek 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 May 2023.

How much traffic does Saint Louis Road over N/F Beaverdam Creek carry?

About 2,699 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Saint Louis Road over N/F Beaverdam Creek?

The structure is 97 ft (29.6 m) long with a longest span of 48 ft (14.6 m) and a deck 27 ft wide.

Who owns Saint Louis Road over N/F Beaverdam Creek?

It is owned by the State Highway Agency.