US Bridges

Stc 3006;MANN Crk over Galloway Canal

Good

Washington County, Idaho · 0.1 S. 5.4 E. Weiser · Structure no. 000000000028691

Built
2001
24 years old
Condition
Good
inspected November 2021
Type
Culvert
Steel
Length
29 ft
1 main span
Daily traffic
180
2023 count
Owner
County
County Highway Agency

About this bridge

Stc 3006;MANN Crk over Galloway Canal is a steel culvert carrying Stc 3006;MANN Crk over Galloway Canal in Washington 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 180 vehicles a day, roughly 29% of them trucks, projected to reach 270 by 2042. The structure is 29 ft (8.8 m) long and 41 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesStc 3006;MANN Crk
CrossesGalloway Canal
Location0.1 S. 5.4 E. Weiser
RouteCounty Highway 3006
CountyWashington County
StateIdaho
Coordinates44.24381, -116.86228
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating49.1 US tons
Inventory rating37 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span29 ft (8.8 m)
Deck width41 ft (12.4 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic180 (2023)
Projected traffic270 by 2042
Trucks29%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Stc 3006;MANN Crk over Galloway Canal built?

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

What condition is Stc 3006;MANN Crk over Galloway Canal 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 November 2021.

How much traffic does Stc 3006;MANN Crk over Galloway Canal carry?

About 180 vehicles per day (2023 count), of which roughly 29% are trucks.

How long is Stc 3006;MANN Crk over Galloway Canal?

The structure is 29 ft (8.8 m) long with a longest span of 29 ft (8.8 m) and a deck 41 ft wide.

Who owns Stc 3006;MANN Crk over Galloway Canal?

It is owned by the County Highway Agency.