US Bridges

Harp 921 over Tanner Run

Poor

Roane County, West Virginia · 0.03 Mile South of US 33 · Structure no. 00000000044A154

Built
1970
55 years old, rebuilt 2019
Condition
Poor
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
22 ft
1 main span
Daily traffic
50
2019 count
Owner
State
State Highway Agency

About this bridge

Harp 921 over Tanner Run is a steel stringer/multi-beam or girder carrying Harp 921 over Tanner Run in Roane County, West Virginia. It was built in 1970 and reconstructed in 2019, so it is 55 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 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.

It carries about 50 vehicles a day, projected to reach 80 by 2039. The structure is 22 ft (6.8 m) long and 16 ft wide.

Location

Open in Google Maps
CarriesHarp 921
CrossesTanner Run
Location0.03 Mile South of US 33
CountyRoane County
StateWest Virginia
Coordinates38.79396, -81.38445
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length22 ft (6.8 m)
Longest span22 ft (6.6 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2019)
Projected traffic80 by 2039
Trucks0%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$350,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Harp 921 over Tanner Run built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2019.

What condition is Harp 921 over Tanner Run 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 January 2023.

How much traffic does Harp 921 over Tanner Run carry?

About 50 vehicles per day (2019 count).

How long is Harp 921 over Tanner Run?

The structure is 22 ft (6.8 m) long with a longest span of 22 ft (6.6 m) and a deck 16 ft wide.

Who owns Harp 921 over Tanner Run?

It is owned by the State Highway Agency.