US Bridges

Mcdonald Road over Shebang Creek

Fair

Idaho County, Idaho · 5.3 N. 5.9 W. Grangeville · Structure no. 000000000029205

Built
1935
90 years old, rebuilt 1998
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
29 ft
2 main spans
Daily traffic
20
2023 count
Owner
Local
Other Local Agency

About this bridge

Mcdonald Road over Shebang Creek is a steel continuous stringer/multi-beam or girder carrying Mcdonald Road over Shebang Creek in Idaho County, Idaho. It was built in 1935 and reconstructed in 1998, so it is 90 years old, older 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 5 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 20 vehicles a day, roughly 10% of them trucks, projected to reach 30 by 2039. The structure is 29 ft (8.8 m) long and 21 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesMcdonald Road
CrossesShebang Creek
Location5.3 N. 5.9 W. Grangeville
RouteCounty Highway 0
CountyIdaho County
StateIdaho
Coordinates46.00442, -116.2425
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating34 US tons
Inventory rating20 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckCorrugated steel
Main spans2
Design loadH 15
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width21 ft (6.4 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2023)
Projected traffic30 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$340,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mcdonald Road over Shebang Creek built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1998.

What condition is Mcdonald Road over Shebang 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 Mcdonald Road over Shebang Creek carry?

About 20 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Mcdonald Road over Shebang Creek?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m) and a deck 21 ft wide.

Who owns Mcdonald Road over Shebang Creek?

It is owned by the Other Local Agency.