US Bridges

Hillsboro Road over North Fork Catoctin Ck.

Fair

Loudoun County, Virginia · 00.48FR9/00.02TO812 · Structure no. 000000000011276

Built
1955
70 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
67 ft
2 main spans
Daily traffic
4,500
2022 count
Owner
State
State Highway Agency

About this bridge

Hillsboro Road over North Fork Catoctin Ck. is a steel continuous stringer/multi-beam or girder carrying Hillsboro Road over North Fork Catoctin Ck. in Loudoun County, Virginia. It was built in 1955, so it is 70 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 4,500 vehicles a day, roughly 2% of them trucks, projected to reach 6,571 by 2042. The structure is 67 ft (20.4 m) long and 26 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesHillsboro Road
CrossesNorth Fork Catoctin Ck.
Location00.48FR9/00.02TO812
RouteCounty Highway 690
CountyLoudoun County
StateVirginia
Coordinates39.1941, -77.72031
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating70.9 US tons
Inventory rating54.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length67 ft (20.4 m)
Longest span33 ft (10.1 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,500 (2022)
Projected traffic6,571 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$20 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Hillsboro Road over North Fork Catoctin Ck. built?

It was built in 1955, making it 70 years old in 2025.

What condition is Hillsboro Road over North Fork Catoctin Ck. 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 April 2024.

How much traffic does Hillsboro Road over North Fork Catoctin Ck. carry?

About 4,500 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Hillsboro Road over North Fork Catoctin Ck.?

The structure is 67 ft (20.4 m) long with a longest span of 33 ft (10.1 m) and a deck 26 ft wide.

Who owns Hillsboro Road over North Fork Catoctin Ck.?

It is owned by the State Highway Agency.