US Bridges

Ward Road South over Rush Creek

Fair

Washington County, Idaho · 5.6 N. 0.5 W. Cambridge · Structure no. 000000000028700

Built
1987
38 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
23 ft
1 main span
Daily traffic
30
2023 count
Owner
County
County Highway Agency

About this bridge

Ward Road South over Rush Creek is a steel stringer/multi-beam or girder carrying Ward Road South over Rush Creek in Washington County, Idaho. It was built in 1987, so it is 38 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.

It carries about 30 vehicles a day, roughly 33% of them trucks, projected to reach 45 by 2039. The structure is 23 ft (7 m) long and 20 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesWard Road South
CrossesRush Creek
Location5.6 N. 0.5 W. Cambridge
RouteCounty Highway 0
CountyWashington County
StateIdaho
Coordinates44.65256, -116.68581
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 statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length23 ft (7 m)
Longest span21 ft (6.4 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic45 by 2039
Trucks33%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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$255,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ward Road South over Rush Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Ward Road South over Rush Creek 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 Ward Road South over Rush Creek carry?

About 30 vehicles per day (2023 count), of which roughly 33% are trucks.

How long is Ward Road South over Rush Creek?

The structure is 23 ft (7 m) long with a longest span of 21 ft (6.4 m) and a deck 20 ft wide.

Who owns Ward Road South over Rush Creek?

It is owned by the County Highway Agency.