US Bridges

Westfax Drive over Cain Branch

Good

Fairfax County, Virginia · 00.05FR END/00.30TO50 · Structure no. 000000000023915

Built
1987
38 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
64 ft
6 main spans
Daily traffic
1,577
2015 count
Owner
State
State Highway Agency

About this bridge

Westfax Drive over Cain Branch is a concrete culvert carrying Westfax Drive over Cain Branch in Fairfax County, Virginia. It was built in 1987, so it is 38 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 1,577 vehicles a day, projected to reach 1,814 by 2042. The structure is 64 ft (19.5 m) long. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesWestfax Drive
CrossesCain Branch
Location00.05FR END/00.30TO50
RouteCounty Highway 8610
CountyFairfax County
StateVirginia
Coordinates38.89939, -77.45534
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating65 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans6
Design loadHS 20
Structure length64 ft (19.5 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,577 (2015)
Projected traffic1,814 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$125 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Westfax Drive over Cain Branch built?

It was built in 1987, making it 38 years old in 2025.

What condition is Westfax Drive over Cain Branch 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 May 2024.

How much traffic does Westfax Drive over Cain Branch carry?

About 1,577 vehicles per day (2015 count).

How long is Westfax Drive over Cain Branch?

The structure is 64 ft (19.5 m) long with a longest span of 10 ft (3 m).

Who owns Westfax Drive over Cain Branch?

It is owned by the State Highway Agency.