US Bridges

Old Mill Road over Branch of Dogue Creek

Good

Fairfax County, Virginia · 00.05FR6988/00.10TO624 · Structure no. 000000000026428

Built
2000
25 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
38 ft
1 main span
Daily traffic
1,159
2022 count
Owner
State
State Highway Agency

About this bridge

Old Mill Road over Branch of Dogue Creek is a steel stringer/multi-beam or girder carrying Old Mill Road over Branch of Dogue Creek in Fairfax County, Virginia. It was built in 2000, so it is 25 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 1,159 vehicles a day, roughly 1% of them trucks, projected to reach 1,292 by 2042. The structure is 38 ft (11.6 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesOld Mill Road
CrossesBranch of Dogue Creek
Location00.05FR6988/00.10TO624
RouteCounty Highway 623
Coordinates38.71714, -77.12025
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.7 US tons
Inventory rating62.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span34 ft (10.4 m)
Deck width43 ft (13.1 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,159 (2022)
Projected traffic1,292 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$150 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Mill Road over Branch of Dogue Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is Old Mill Road over Branch of Dogue 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 July 2024.

How much traffic does Old Mill Road over Branch of Dogue Creek carry?

About 1,159 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Old Mill Road over Branch of Dogue Creek?

The structure is 38 ft (11.6 m) long with a longest span of 34 ft (10.4 m) and a deck 43 ft wide.

Who owns Old Mill Road over Branch of Dogue Creek?

It is owned by the State Highway Agency.