US Bridges

Stc 3879;BURTON LN over Creek;slough

FairPosted for load

Washington County, Idaho · 1.5 S. 1.0 E. Cambridge · Structure no. 000000000020030

Built
1935
90 years old, rebuilt 2007
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
140
2023 count
Owner
County
County Highway Agency

About this bridge

Stc 3879;BURTON LN over Creek;slough is a steel stringer/multi-beam or girder carrying Stc 3879;BURTON LN over Creek;slough in Washington County, Idaho. It was built in 1935 and reconstructed in 2007, 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. Its operating status is: posted for load restriction.

It carries about 140 vehicles a day, roughly 17% of them trucks, projected to reach 210 by 2042. The structure is 31 ft (9.4 m) long and 22 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesStc 3879;BURTON LN
CrossesCreek;slough
Location1.5 S. 1.0 E. Cambridge
RouteCounty Highway 3879
StateIdaho
Coordinates44.5495, -116.65567
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27 US tons
Inventory rating16 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadH 10
Structure length31 ft (9.4 m)
Longest span28 ft (8.5 m)
Deck width22 ft (6.8 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2023)
Projected traffic210 by 2042
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$393,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Stc 3879;BURTON LN over Creek;slough built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 2007.

What condition is Stc 3879;BURTON LN over Creek;slough 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 2023.

How much traffic does Stc 3879;BURTON LN over Creek;slough carry?

About 140 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is Stc 3879;BURTON LN over Creek;slough?

The structure is 31 ft (9.4 m) long with a longest span of 28 ft (8.5 m) and a deck 22 ft wide.

Who owns Stc 3879;BURTON LN over Creek;slough?

It is owned by the County Highway Agency.