US Bridges

E. Simplot Blvd. over Indian Creek

Fair

Canyon County, Idaho · In Caldwell · Structure no. 000000000027585

Built
1965
60 years old
Condition
Fair
inspected March 2024
Type
Tee Beam
Prestressed Concrete
Length
34 ft
1 main span
Daily traffic
280
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

E. Simplot Blvd. over Indian Creek is a prestressed concrete tee beam carrying E. Simplot Blvd. over Indian Creek in Canyon County, Idaho. It was built in 1965, so it is 60 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 280 vehicles a day, roughly 10% of them trucks, projected to reach 420 by 2039. The structure is 34 ft (10.4 m) long and 46 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesE. Simplot Blvd.
CrossesIndian Creek
LocationIn Caldwell
RouteCity Street 0
CountyCanyon County
StateIdaho
Coordinates43.66969, -116.69375
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52 US tons
Inventory rating31 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span33 ft (10.1 m)
Deck width46 ft (13.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic280 (2023)
Projected traffic420 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$611,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was E. Simplot Blvd. over Indian Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is E. Simplot Blvd. over Indian Creek 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 2024.

How much traffic does E. Simplot Blvd. over Indian Creek carry?

About 280 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is E. Simplot Blvd. over Indian Creek?

The structure is 34 ft (10.4 m) long with a longest span of 33 ft (10.1 m) and a deck 46 ft wide.

Who owns E. Simplot Blvd. over Indian Creek?

It is owned by the City or Municipal Highway Agency.