US Bridges

Stc 6727;75th East over Anderson Canal

Fair

Bonneville County, Idaho · 4.0 E. 0.3 N. Ucon · Structure no. 000000000020855

Built
1954
71 years old
Condition
Fair
inspected November 2024
Type
Frame
Concrete
Length
22 ft
1 main span
Daily traffic
900
2023 count
Owner
County
County Highway Agency

About this bridge

Stc 6727;75th East over Anderson Canal is a concrete frame carrying Stc 6727;75th East over Anderson Canal in Bonneville County, Idaho. It was built in 1954, so it is 71 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 900 vehicles a day, roughly 5% of them trucks, projected to reach 1,350 by 2042. The structure is 22 ft (6.7 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesStc 6727;75th East
CrossesAnderson Canal
Location4.0 E. 0.3 N. Ucon
RouteCounty Highway 6727
CountyBonneville County
StateIdaho
Coordinates43.59886, -111.88417
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
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53 US tons
Inventory rating31 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length22 ft (6.7 m)
Longest span22 ft (6.7 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2023)
Projected traffic1,350 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$468,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Stc 6727;75th East over Anderson Canal built?

It was built in 1954, making it 71 years old in 2025.

What condition is Stc 6727;75th East over Anderson Canal 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 November 2024.

How much traffic does Stc 6727;75th East over Anderson Canal carry?

About 900 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Stc 6727;75th East over Anderson Canal?

The structure is 22 ft (6.7 m) long with a longest span of 22 ft (6.7 m) and a deck 28 ft wide.

Who owns Stc 6727;75th East over Anderson Canal?

It is owned by the County Highway Agency.