US Bridges

E 600 N over St. Anthony Canal

Fair

Fremont County, Idaho · 1.0 N. 1.5 W. Parker · Structure no. 000000000032010

Built
1963
62 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Prestressed Concrete
Length
34 ft
1 main span
Daily traffic
240
2023 count
Owner
County
County Highway Agency

About this bridge

E 600 N over St. Anthony Canal is a prestressed concrete tee beam carrying E 600 N over St. Anthony Canal in Fremont 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 240 vehicles a day, roughly 4% of them trucks, projected to reach 360 by 2042. The structure is 34 ft (10.4 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesE 600 N
CrossesSt. Anthony Canal
Location1.0 N. 1.5 W. Parker
RouteCounty Highway 0
StateIdaho
Coordinates43.97039, -111.78817
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38 US tons
Inventory rating23 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length34 ft (10.4 m)
Longest span33 ft (10.1 m)
Deck width25 ft (7.5 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic240 (2023)
Projected traffic360 by 2042
Trucks4%
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$327,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was E 600 N over St. Anthony Canal built?

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

What condition is E 600 N over St. Anthony 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 600 N over St. Anthony Canal carry?

About 240 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is E 600 N over St. Anthony Canal?

The structure is 34 ft (10.4 m) long with a longest span of 33 ft (10.1 m) and a deck 25 ft wide.

Who owns E 600 N over St. Anthony Canal?

It is owned by the County Highway Agency.