US Bridges

Diversion Road over Dry Gulch

FairPosted for load

Clark County, Idaho · 10.8 S. 1.2 W Kilgore · Structure no. 000000000031581

Built
2007
18 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
44 ft
1 main span
Daily traffic
5
2023 count
Owner
County
County Highway Agency

About this bridge

Diversion Road over Dry Gulch is a steel stringer/multi-beam or girder carrying Diversion Road over Dry Gulch in Clark County, Idaho. It was built in 2007, so it is 18 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 5 vehicles a day, roughly 5% of them trucks, projected to reach 8 by 2039. The structure is 44 ft (13.4 m) long and 11 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesDiversion Road
CrossesDry Gulch
Location10.8 S. 1.2 W Kilgore
RouteCounty Highway 0
CountyClark County
StateIdaho
Coordinates44.24733, -111.91797
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating22 US tons
Inventory rating16 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span43 ft (13.1 m)
Deck width11 ft (3.4 m)
Roadway width11 ft (3.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2023)
Projected traffic8 by 2039
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$478,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Diversion Road over Dry Gulch built?

It was built in 2007, making it 18 years old in 2025.

What condition is Diversion Road over Dry Gulch 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 July 2024.

How much traffic does Diversion Road over Dry Gulch carry?

About 5 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Diversion Road over Dry Gulch?

The structure is 44 ft (13.4 m) long with a longest span of 43 ft (13.1 m) and a deck 11 ft wide.

Who owns Diversion Road over Dry Gulch?

It is owned by the County Highway Agency.