US Bridges

Lomond Drive over Flat Branch

Good

Prince William County, Virginia · 00.25FR1538/00.12TO1539 · Structure no. 000000000025606

Built
1998
27 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
108 ft
1 main span
Daily traffic
23,167
2022 count
Owner
State
State Highway Agency

About this bridge

Lomond Drive over Flat Branch is a steel stringer/multi-beam or girder carrying Lomond Drive over Flat Branch in Prince William County, Virginia. It was built in 1998, so it is 27 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 23,167 vehicles a day, projected to reach 23,416 by 2045. The structure is 108 ft (32.9 m) long and 47 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLomond Drive
CrossesFlat Branch
Location00.25FR1538/00.12TO1539
RouteCounty Highway 1530
CountyPrince William County
StateVirginia
Coordinates38.78197, -77.48711
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99.9 US tons
Inventory rating92.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length108 ft (32.9 m)
Longest span105 ft (32 m)
Deck width47 ft (14.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,167 (2022)
Projected traffic23,416 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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$360 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Lomond Drive over Flat Branch built?

It was built in 1998, making it 27 years old in 2025.

What condition is Lomond Drive over Flat 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 2023.

How much traffic does Lomond Drive over Flat Branch carry?

About 23,167 vehicles per day (2022 count).

How long is Lomond Drive over Flat Branch?

The structure is 108 ft (32.9 m) long with a longest span of 105 ft (32 m) and a deck 47 ft wide.

Who owns Lomond Drive over Flat Branch?

It is owned by the State Highway Agency.