US Bridges

Glen Carlyn Road over Long Branch

Good

Fairfax County, Virginia · 00.10FR1024/00.10TO984 · Structure no. 000000000006877

Built
1977
48 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
27 ft
3 main spans
Daily traffic
9,371
2022 count
Owner
State
State Highway Agency

About this bridge

Glen Carlyn Road over Long Branch is a concrete culvert carrying Glen Carlyn Road over Long 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 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 9,371 vehicles a day, roughly 1% of them trucks, projected to reach 13,666 by 2042. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesGlen Carlyn Road
CrossesLong Branch
Location00.10FR1024/00.10TO984
RouteCounty Highway 714
Coordinates38.86048, -77.13779
Functional classUrban Collector

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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating71 US tons
Inventory rating42 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,371 (2022)
Projected traffic13,666 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Glen Carlyn Road over Long Branch built?

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

What condition is Glen Carlyn Road over Long 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 July 2024.

How much traffic does Glen Carlyn Road over Long Branch carry?

About 9,371 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Glen Carlyn Road over Long Branch?

The structure is 27 ft (8.2 m) long with a longest span of 9 ft (2.7 m).

Who owns Glen Carlyn Road over Long Branch?

It is owned by the State Highway Agency.