US Bridges

Mill Branch RD over Mill Branch

Fair

Alleghany County, Virginia · 0.40 to 607 & 0.30 to 18 · Structure no. 000000000028419

Built
2006
19 years old
Condition
Fair
inspected February 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
55 ft
1 main span
Daily traffic
138
2017 count
Owner
State
State Highway Agency

About this bridge

Mill Branch RD over Mill Branch is a prestressed concrete box beam or girders - multiple carrying Mill Branch RD over Mill Branch in Alleghany County, Virginia. It was built in 2006, so it is 19 years old, younger than the Virginia average of 50.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 138 vehicles a day, projected to reach 177 by 2045. The structure is 55 ft (16.8 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMill Branch RD
CrossesMill Branch
Location0.40 to 607 & 0.30 to 18
RouteCounty Highway 610
CountyAlleghany County
StateVirginia
Coordinates37.65769, -80.11427
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating83 US tons
Inventory rating64 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20 + Mod
Structure length55 ft (16.8 m)
Longest span55 ft (16.8 m)
Deck width27 ft (8.2 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 RD over Mill Branch built?

It was built in 2006, making it 19 years old in 2025.

What condition is Mill Branch RD over Mill Branch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2025.

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

About 138 vehicles per day (2017 count).

How long is Mill Branch RD over Mill Branch?

The structure is 55 ft (16.8 m) long with a longest span of 55 ft (16.8 m) and a deck 27 ft wide.

Who owns Mill Branch RD over Mill Branch?

It is owned by the State Highway Agency.