US Bridges

Jackson Creek Road over Johnson Creek

Good

Adams County, Idaho · 1.5 S. 5.2 W. Council · Structure no. 000000000026556

Built
2001
24 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
26 ft
1 main span
Daily traffic
50
2023 count
Owner
County
County Highway Agency

About this bridge

Jackson Creek Road over Johnson Creek is a steel stringer/multi-beam or girder carrying Jackson Creek Road over Johnson Creek in Adams County, Idaho. It was built in 2001, so it is 24 years old, younger than the Idaho average of 45.3 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 50 vehicles a day, roughly 67% of them trucks, projected to reach 75 by 2042. The structure is 26 ft (7.9 m) long and 18 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesJackson Creek Road
CrossesJohnson Creek
Location1.5 S. 5.2 W. Council
RouteCounty Highway 0
CountyAdams County
StateIdaho
Coordinates44.70614, -116.54492
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span25 ft (7.6 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic75 by 2042
Trucks67%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$57,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Jackson Creek Road over Johnson Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is Jackson Creek Road over Johnson 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 September 2023.

How much traffic does Jackson Creek Road over Johnson Creek carry?

About 50 vehicles per day (2023 count), of which roughly 67% are trucks.

How long is Jackson Creek Road over Johnson Creek?

The structure is 26 ft (7.9 m) long with a longest span of 25 ft (7.6 m) and a deck 18 ft wide.

Who owns Jackson Creek Road over Johnson Creek?

It is owned by the County Highway Agency.