US Bridges

E. Roh Lane over Anderson Canal

Good

Bonneville County, Idaho · 1.4 S. Ucon · Structure no. 000000000031278

Built
2004
21 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
24 ft
1 main span
Daily traffic
50
2023 count
Owner
County
County Highway Agency

About this bridge

E. Roh Lane over Anderson Canal is a prestressed concrete stringer/multi-beam or girder carrying E. Roh Lane over Anderson Canal in Bonneville County, Idaho. It was built in 2004, so it is 21 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 50 vehicles a day, roughly 5% of them trucks, projected to reach 75 by 2039. The structure is 24 ft (7.3 m) long and 48 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesE. Roh Lane
CrossesAnderson Canal
Location1.4 S. Ucon
RouteCounty Highway 0
StateIdaho
Coordinates43.57408, -111.96442
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating38 US tons
Inventory rating23 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span23 ft (7 m)
Deck width48 ft (14.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic75 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 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$511,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was E. Roh Lane over Anderson Canal built?

It was built in 2004, making it 21 years old in 2025.

What condition is E. Roh Lane over Anderson 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 April 2023.

How much traffic does E. Roh Lane over Anderson Canal carry?

About 50 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is E. Roh Lane over Anderson Canal?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 48 ft wide.

Who owns E. Roh Lane over Anderson Canal?

It is owned by the County Highway Agency.