US Bridges

Crest Hill Road over West Branch Thumb Run

Fair

Fauquier County, Virginia · 1.10 FR 688 & 1.00 to 732 · Structure no. 000000000007325

Built
1923
102 years old
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete
Length
33 ft
1 main span
Daily traffic
685
2022 count
Owner
State
State Highway Agency

About this bridge

Crest Hill Road over West Branch Thumb Run is a concrete tee beam carrying Crest Hill Road over West Branch Thumb Run in Fauquier County, Virginia. It was built in 1923, so it is 102 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 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 685 vehicles a day, projected to reach 704 by 2042. The structure is 33 ft (10.1 m) long and 18 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesCrest Hill Road
CrossesWest Branch Thumb Run
Location1.10 FR 688 & 1.00 to 732
RouteCounty Highway 647
Coordinates38.79405, -77.97417
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
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 rating45 US tons
Inventory rating34 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span30 ft (9.1 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic685 (2022)
Projected traffic704 by 2042
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-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$70 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Crest Hill Road over West Branch Thumb Run built?

It was built in 1923, making it 102 years old in 2025.

What condition is Crest Hill Road over West Branch Thumb Run 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 August 2024.

How much traffic does Crest Hill Road over West Branch Thumb Run carry?

About 685 vehicles per day (2022 count).

How long is Crest Hill Road over West Branch Thumb Run?

The structure is 33 ft (10.1 m) long with a longest span of 30 ft (9.1 m) and a deck 18 ft wide.

Who owns Crest Hill Road over West Branch Thumb Run?

It is owned by the State Highway Agency.