US Bridges

Mountain Road over Catharpin Creek

Good

Prince William County, Virginia · 0.73 FR 601 0.01 to 680 · Structure no. 000000000030048

Built
2012
13 years old
Condition
Good
inspected November 2024
Type
Arch - Deck
Concrete
Length
26 ft
1 main span
Daily traffic
507
2013 count
Owner
State
State Highway Agency

About this bridge

Mountain Road over Catharpin Creek is a concrete arch - deck carrying Mountain Road over Catharpin Creek in Prince William County, Virginia. It was built in 2012, so it is 13 years old, younger than the Virginia average of 50.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 507 vehicles a day, projected to reach 588 by 2042. The structure is 26 ft (7.8 m) long and 60 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesMountain Road
CrossesCatharpin Creek
Location0.73 FR 601 0.01 to 680
RouteCounty Highway 600
CountyPrince William County
StateVirginia
Coordinates38.86989, -77.68389
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.2 US tons
Inventory rating59.6 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length26 ft (7.8 m)
Longest span24 ft (7.2 m)
Deck width60 ft (18.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic507 (2013)
Projected traffic588 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Mountain Road over Catharpin Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is Mountain Road over Catharpin Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does Mountain Road over Catharpin Creek carry?

About 507 vehicles per day (2013 count).

How long is Mountain Road over Catharpin Creek?

The structure is 26 ft (7.8 m) long with a longest span of 24 ft (7.2 m) and a deck 60 ft wide.

Who owns Mountain Road over Catharpin Creek?

It is owned by the State Highway Agency.