US Bridges

Soapstone Drive over Snakeden Branch

Fair

Fairfax County, Virginia · 00.32FR4721/00.32TO5329 · Structure no. 000000000007009

Built
1977
48 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete
Length
22 ft
3 main spans
Daily traffic
5,485
2022 count
Owner
State
State Highway Agency

About this bridge

Soapstone Drive over Snakeden Branch is a concrete culvert carrying Soapstone Drive over Snakeden Branch in Fairfax County, Virginia. It was built in 1977, so it is 48 years old, younger 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 6 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 5,485 vehicles a day, roughly 2% of them trucks, projected to reach 7,564 by 2042. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSoapstone Drive
CrossesSnakeden Branch
Location00.32FR4721/00.32TO5329
RouteCounty Highway 4720
CountyFairfax County
StateVirginia
Coordinates38.93006, -77.34547
Functional classUrban 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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating99 US tons
Inventory rating65 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,485 (2022)
Projected traffic7,564 by 2042
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Soapstone Drive over Snakeden Branch built?

It was built in 1977, making it 48 years old in 2025.

What condition is Soapstone Drive over Snakeden Branch 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 September 2024.

How much traffic does Soapstone Drive over Snakeden Branch carry?

About 5,485 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Soapstone Drive over Snakeden Branch?

The structure is 22 ft (6.7 m) long with a longest span of 7 ft (2.1 m).

Who owns Soapstone Drive over Snakeden Branch?

It is owned by the State Highway Agency.