US Bridges

Harp 920 over Rockhouse Fork

PoorPosted for load

Mingo County, West Virginia · 0.01 Mile East of CR 65/5 · Structure no. 00000000030A214

Built
1999
26 years old
Condition
Poor
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
25 ft
1 main span
Daily traffic
30
2022 count
Owner
State
State Highway Agency

About this bridge

Harp 920 over Rockhouse Fork is a steel stringer/multi-beam or girder carrying Harp 920 over Rockhouse Fork in Mingo County, West Virginia. It was built in 1999, so it is 26 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 30 vehicles a day, roughly 6% of them trucks, projected to reach 32 by 2042. The structure is 25 ft (7.6 m) long and 16 ft wide.

Location

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CarriesHarp 920
CrossesRockhouse Fork
Location0.01 Mile East of CR 65/5
CountyMingo County
StateWest Virginia
Coordinates37.69847, -82.11521
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating24 US tons
Inventory rating14 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span24 ft (7.4 m)
Deck width16 ft (5 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2022)
Projected traffic32 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-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 Harp 920 over Rockhouse Fork built?

It was built in 1999, making it 26 years old in 2025.

What condition is Harp 920 over Rockhouse Fork in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2023.

How much traffic does Harp 920 over Rockhouse Fork carry?

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

How long is Harp 920 over Rockhouse Fork?

The structure is 25 ft (7.6 m) long with a longest span of 24 ft (7.4 m) and a deck 16 ft wide.

Who owns Harp 920 over Rockhouse Fork?

It is owned by the State Highway Agency.