US Bridges

Foundry Rd;e 1100N over Reservation Canal

Fair

Bingham County, Idaho · 2.0 S. 1.9 W. Shelley · Structure no. 000000000023005

Built
1987
38 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
10
2023 count
Owner
County
County Highway Agency

About this bridge

Foundry Rd;e 1100N over Reservation Canal is a prestressed concrete tee beam carrying Foundry Rd;e 1100N over Reservation Canal in Bingham County, Idaho. It was built in 1987, so it is 38 years old, younger 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 10 vehicles a day, roughly 10% of them trucks, projected to reach 15 by 2039. The structure is 40 ft (12.2 m) long and 18 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesFoundry Rd;e 1100N
CrossesReservation Canal
Location2.0 S. 1.9 W. Shelley
RouteCounty Highway 0
CountyBingham County
StateIdaho
Coordinates43.35497, -112.16436
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 protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating74 US tons
Inventory rating37 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span38 ft (11.6 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2023)
Projected traffic15 by 2039
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
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$435,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Foundry Rd;e 1100N over Reservation Canal built?

It was built in 1987, making it 38 years old in 2025.

What condition is Foundry Rd;e 1100N over Reservation 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 March 2023.

How much traffic does Foundry Rd;e 1100N over Reservation Canal carry?

About 10 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Foundry Rd;e 1100N over Reservation Canal?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.6 m) and a deck 18 ft wide.

Who owns Foundry Rd;e 1100N over Reservation Canal?

It is owned by the County Highway Agency.