US Bridges

Mill Branch Road over Mill Branch

Good

Alleghany County, Virginia · 0.05 to 18 & 0.65 to 607 · Structure no. 000000000028632

Built
2007
18 years old
Condition
Good
inspected October 2023
Type
Slab
Concrete
Length
25 ft
1 main span
Daily traffic
138
2017 count
Owner
State
State Highway Agency

About this bridge

Mill Branch Road over Mill Branch is a concrete slab carrying Mill Branch Road over Mill Branch in Alleghany County, Virginia. It was built in 2007, so it is 18 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 138 vehicles a day, projected to reach 177 by 2045. The structure is 25 ft (7.6 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMill Branch Road
CrossesMill Branch
Location0.05 to 18 & 0.65 to 607
RouteCounty Highway 610
Coordinates37.66101, -80.11534
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating61.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckOther
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span25 ft (7.6 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic138 (2017)
Projected traffic177 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mill Branch Road over Mill Branch built?

It was built in 2007, making it 18 years old in 2025.

What condition is Mill Branch Road over Mill 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 October 2023.

How much traffic does Mill Branch Road over Mill Branch carry?

About 138 vehicles per day (2017 count).

How long is Mill Branch Road over Mill Branch?

The structure is 25 ft (7.6 m) long with a longest span of 25 ft (7.6 m) and a deck 25 ft wide.

Who owns Mill Branch Road over Mill Branch?

It is owned by the State Highway Agency.