US Bridges

I 84B over Snake River;overland Br

Fair

Cassia County, Idaho · Near Burley Ncl · Structure no. 000000000013331

Built
2001
24 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
850 ft
8 main spans
Daily traffic
26,000
2023 count
Owner
State
State Highway Agency

About this bridge

I 84B over Snake River;overland Br is a prestressed concrete stringer/multi-beam or girder carrying I 84B over Snake River;overland Br in Cassia County, Idaho. It was built in 2001, so it is 24 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 4% of them trucks, projected to reach 39,000 by 2042. The structure is 850 ft (259.1 m) long and 75 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesI 84B
CrossesSnake River;overland Br
LocationNear Burley Ncl
RouteInterstate 84
CountyCassia County
StateIdaho
Coordinates42.55358, -113.79322
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 inspectionJune 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating101 US tons
Inventory rating53 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans8
Design loadHS 25 or greater
Structure length850 ft (259.1 m)
Longest span105 ft (32 m)
Deck width75 ft (23 m)
Roadway width63 ft (19.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,000 (2023)
Projected traffic39,000 by 2042
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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 over Snake River;overland Br built?

It was built in 2001, making it 24 years old in 2025.

What condition is I 84B over Snake River;overland Br 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 June 2023.

How much traffic does I 84B over Snake River;overland Br carry?

About 26,000 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is I 84B over Snake River;overland Br?

The structure is 850 ft (259.1 m) long with a longest span of 105 ft (32 m) and a deck 75 ft wide.

Who owns I 84B over Snake River;overland Br?

It is owned by the State Highway Agency.