US Bridges

CR 78 Black Oak RD over Sixteenmile Creek

Good

Mason County, West Virginia · 2.37 Mi. E of CR37 · Structure no. 00000000027A202

Built
2021
4 years old
Condition
Good
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
30
2022 count
Owner
State
State Highway Agency

About this bridge

CR 78 Black Oak RD over Sixteenmile Creek is a prestressed concrete box beam or girders - multiple carrying CR 78 Black Oak RD over Sixteenmile Creek in Mason County, West Virginia. It was built in 2021, so it is 4 years old, younger than the West Virginia average of 44.7 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 30 vehicles a day, roughly 6% of them trucks, projected to reach 41 by 2042. The structure is 50 ft (15.2 m) long and 15 ft wide.

Location

Open in Google Maps
CarriesCR 78 Black Oak RD
CrossesSixteenmile Creek
Location2.37 Mi. E of CR37
RouteCounty Highway 7800
CountyMason County
StateWest Virginia
Coordinates38.66889, -82.03449
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating66 US tons
Inventory rating51 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHL 93
Structure length50 ft (15.2 m)
Longest span50 ft (15.2 m)
Deck width15 ft (4.6 m)
Roadway width15 ft (4.6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 78 Black Oak RD over Sixteenmile Creek built?

It was built in 2021, making it 4 years old in 2025.

What condition is CR 78 Black Oak RD over Sixteenmile 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 November 2023.

How much traffic does CR 78 Black Oak RD over Sixteenmile Creek carry?

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

How long is CR 78 Black Oak RD over Sixteenmile Creek?

The structure is 50 ft (15.2 m) long with a longest span of 50 ft (15.2 m) and a deck 15 ft wide.

Who owns CR 78 Black Oak RD over Sixteenmile Creek?

It is owned by the State Highway Agency.