US Bridges

Harrison CO Rt 46 over Gnatty Creek

Good

Harrison County, West Virginia · 0.02 MI East CO Rt 20/20 · Structure no. 00000000017A176

Built
1993
32 years old
Condition
Good
inspected May 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
72 ft
1 main span
Daily traffic
300
2019 count
Owner
State
State Highway Agency

About this bridge

Harrison CO Rt 46 over Gnatty Creek is a prestressed concrete box beam or girders - multiple carrying Harrison CO Rt 46 over Gnatty Creek in Harrison County, West Virginia. It was built in 1993, so it is 32 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 300 vehicles a day, roughly 8% of them trucks, projected to reach 410 by 2041. The structure is 72 ft (21.8 m) long and 21 ft wide.

CarriesHarrison CO Rt 46
CrossesGnatty Creek
Location0.02 MI East CO Rt 20/20
RouteCounty Highway 4600
Coordinates39.16294, -80.26135
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating98 US tons
Inventory rating73 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length72 ft (21.8 m)
Longest span70 ft (21.3 m)
Deck width21 ft (6.5 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2019)
Projected traffic410 by 2041
Trucks8%
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 Harrison CO Rt 46 over Gnatty Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is Harrison CO Rt 46 over Gnatty 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 May 2021.

How much traffic does Harrison CO Rt 46 over Gnatty Creek carry?

About 300 vehicles per day (2019 count), of which roughly 8% are trucks.

How long is Harrison CO Rt 46 over Gnatty Creek?

The structure is 72 ft (21.8 m) long with a longest span of 70 ft (21.3 m) and a deck 21 ft wide.

Who owns Harrison CO Rt 46 over Gnatty Creek?

It is owned by the State Highway Agency.