US Bridges

Saint Louis Rd. over Beaverdam Creek

Fair

Loudoun County, Virginia · 00.49FR733/00.50TO630 · Structure no. 000000000011155

Built
1932
93 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Concrete
Length
38 ft
1 main span
Daily traffic
2,578
2022 count
Owner
State
State Highway Agency

About this bridge

Saint Louis Rd. over Beaverdam Creek is a concrete tee beam carrying Saint Louis Rd. over Beaverdam Creek in Loudoun County, Virginia. It was built in 1932, so it is 93 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 2,578 vehicles a day, roughly 2% of them trucks, projected to reach 2,821 by 2045. The structure is 38 ft (11.6 m) long and 22 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesSaint Louis Rd.
CrossesBeaverdam Creek
Location00.49FR733/00.50TO630
RouteCounty Highway 611
CountyLoudoun County
StateVirginia
Coordinates39.04309, -77.76669
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.
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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56.7 US tons
Inventory rating34 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span38 ft (11.6 m)
Deck width22 ft (6.7 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,578 (2022)
Projected traffic2,821 by 2045
Trucks2%
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 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 Saint Louis Rd. over Beaverdam Creek built?

It was built in 1932, making it 93 years old in 2025.

What condition is Saint Louis Rd. over 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 March 2023.

How much traffic does Saint Louis Rd. over Beaverdam Creek carry?

About 2,578 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Saint Louis Rd. over Beaverdam Creek?

The structure is 38 ft (11.6 m) long with a longest span of 38 ft (11.6 m) and a deck 22 ft wide.

Who owns Saint Louis Rd. over Beaverdam Creek?

It is owned by the State Highway Agency.