US Bridges

E. Milo Road over Anderson Canal

Fair

Bonneville County, Idaho · 1.7 S. 4.5 W. Ririe · Structure no. 000000000031180

Built
1963
62 years old
Condition
Fair
inspected November 2023
Type
Frame
Concrete
Length
21 ft
1 main span
Daily traffic
520
2023 count
Owner
County
County Highway Agency

About this bridge

E. Milo Road over Anderson Canal is a concrete frame carrying E. Milo Road over Anderson Canal in Bonneville County, Idaho. It was built in 1963, so it is 62 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 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 520 vehicles a day, roughly 13% of them trucks, projected to reach 780 by 2042. The structure is 21 ft (6.4 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesE. Milo Road
CrossesAnderson Canal
Location1.7 S. 4.5 W. Ririe
RouteCounty Highway 0
CountyBonneville County
StateIdaho
Coordinates43.60419, -111.86417
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating38 US tons
Inventory rating23 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic520 (2023)
Projected traffic780 by 2042
Trucks13%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was E. Milo Road over Anderson Canal built?

It was built in 1963, making it 62 years old in 2025.

What condition is E. Milo Road 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 2023.

How much traffic does E. Milo Road over Anderson Canal carry?

About 520 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is E. Milo Road over Anderson Canal?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m) and a deck 31 ft wide.

Who owns E. Milo Road over Anderson Canal?

It is owned by the County Highway Agency.