US Bridges

Mill Branch Road over Mill Branch

Fair

Alleghany County, Virginia · 2.65 to 610 & 2.95 to 18 · Structure no. 000000000001095

Built
1932
93 years old, rebuilt 1974
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
25 ft
1 main span
Daily traffic
23
2020 count
Owner
State
State Highway Agency

About this bridge

Mill Branch Road over Mill Branch is a steel stringer/multi-beam or girder carrying Mill Branch Road over Mill Branch in Alleghany County, Virginia. It was built in 1932 and reconstructed in 1974, so it is 93 years old, older 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 23 vehicles a day, projected to reach 34 by 2042. The structure is 25 ft (7.7 m) long and 24 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesMill Branch Road
CrossesMill Branch
Location2.65 to 610 & 2.95 to 18
RouteCounty Highway 607
Coordinates37.63003, -80.15128
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating52 US tons
Inventory rating31.1 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20 + Mod
Structure length25 ft (7.7 m)
Longest span20 ft (6.2 m)
Deck width24 ft (7.2 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23 (2020)
Projected traffic34 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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$42 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Mill Branch Road over Mill Branch built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1974.

What condition is Mill Branch Road 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 January 2024.

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

About 23 vehicles per day (2020 count).

How long is Mill Branch Road over Mill Branch?

The structure is 25 ft (7.7 m) long with a longest span of 20 ft (6.2 m) and a deck 24 ft wide.

Who owns Mill Branch Road over Mill Branch?

It is owned by the State Highway Agency.