US Bridges

I 84B;CENTENNIAL W over Uprr;indian Cr;caldwell

Fair

Canyon County, Idaho · In Caldwell · Structure no. 000000000012180

Built
1983
42 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
285 ft
4 main spans
Daily traffic
26,000
2023 count
Owner
State
State Highway Agency

About this bridge

I 84B;CENTENNIAL W over Uprr;indian Cr;caldwell is a prestressed concrete continuous stringer/multi-beam or girder carrying I 84B;CENTENNIAL W over Uprr;indian Cr;caldwell in Canyon County, Idaho. It was built in 1983, so it is 42 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 26,000 vehicles a day, roughly 2% of them trucks, projected to reach 39,000 by 2042. The structure is 285 ft (86.9 m) long and 84 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI 84B;CENTENNIAL W
CrossesUprr;indian Cr;caldwell
LocationIn Caldwell
RouteInterstate 84
CountyCanyon County
StateIdaho
Coordinates43.67282, -116.69611
Functional classUrban Other Principal Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 25 or greater
Structure length285 ft (86.9 m)
Longest span90 ft (27.4 m)
Deck width84 ft (25.5 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,000 (2023)
Projected traffic39,000 by 2042
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad and waterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 I 84B;CENTENNIAL W over Uprr;indian Cr;caldwell built?

It was built in 1983, making it 42 years old in 2025.

What condition is I 84B;CENTENNIAL W over Uprr;indian Cr;caldwell 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 September 2023.

How much traffic does I 84B;CENTENNIAL W over Uprr;indian Cr;caldwell carry?

About 26,000 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is I 84B;CENTENNIAL W over Uprr;indian Cr;caldwell?

The structure is 285 ft (86.9 m) long with a longest span of 90 ft (27.4 m) and a deck 84 ft wide.

Who owns I 84B;CENTENNIAL W over Uprr;indian Cr;caldwell?

It is owned by the State Highway Agency.