US Bridges

County Route 78 over Fork of Sixteenmile CR

Fair

Mason County, West Virginia · 0.26 Ni E of CR 78/4 · Structure no. 00000000027A065

Built
1977
48 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
23 ft
1 main span
Daily traffic
30
2022 count
Owner
State
State Highway Agency

About this bridge

County Route 78 over Fork of Sixteenmile CR is a prestressed concrete box beam or girders - multiple carrying County Route 78 over Fork of Sixteenmile CR in Mason County, West Virginia. It was built in 1977, so it is 48 years old, older than the West Virginia average of 44.7 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 30 vehicles a day, roughly 6% of them trucks, projected to reach 41 by 2042. The structure is 23 ft (6.9 m) long and 16 ft wide.

Location

Open in Google Maps
CarriesCounty Route 78
CrossesFork of Sixteenmile CR
Location0.26 Ni E of CR 78/4
RouteCounty Highway 78
CountyMason County
StateWest Virginia
Coordinates38.67014, -82.03039
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 inspectionSeptember 2023
Inspection intervalevery 24 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 geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length23 ft (6.9 m)
Longest span20 ft (6.1 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2022)
Projected traffic41 by 2042
Trucks6%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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$75,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Route 78 over Fork of Sixteenmile CR built?

It was built in 1977, making it 48 years old in 2025.

What condition is County Route 78 over Fork of Sixteenmile CR 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 September 2023.

How much traffic does County Route 78 over Fork of Sixteenmile CR carry?

About 30 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is County Route 78 over Fork of Sixteenmile CR?

The structure is 23 ft (6.9 m) long with a longest span of 20 ft (6.1 m) and a deck 16 ft wide.

Who owns County Route 78 over Fork of Sixteenmile CR?

It is owned by the State Highway Agency.