US Bridges

Paradise Road over Blackfoot River

Fair

Bingham County, Idaho · 16.5 S. 13.4 E. Firth · Structure no. 000000000022910

Built
1971
54 years old
Condition
Fair
inspected October 2023
Type
Tee Beam
Prestressed Concrete
Length
78 ft
1 main span
Daily traffic
40
2023 count
Owner
County
County Highway Agency

About this bridge

Paradise Road over Blackfoot River is a prestressed concrete tee beam carrying Paradise Road over Blackfoot River in Bingham County, Idaho. It was built in 1971, so it is 54 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 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 40 vehicles a day, projected to reach 60 by 2042. The structure is 78 ft (23.8 m) long and 30 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

Location

Open in Google Maps
CarriesParadise Road
CrossesBlackfoot River
Location16.5 S. 13.4 E. Firth
RouteCounty Highway 0
CountyBingham County
StateIdaho
Coordinates43.05955, -111.92722
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38 US tons
Inventory rating23 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length78 ft (23.8 m)
Longest span76 ft (23.2 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2023)
Projected traffic60 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Paradise Road over Blackfoot River built?

It was built in 1971, making it 54 years old in 2025.

What condition is Paradise Road over Blackfoot River 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 October 2023.

How much traffic does Paradise Road over Blackfoot River carry?

About 40 vehicles per day (2023 count).

How long is Paradise Road over Blackfoot River?

The structure is 78 ft (23.8 m) long with a longest span of 76 ft (23.2 m) and a deck 30 ft wide.

Who owns Paradise Road over Blackfoot River?

It is owned by the County Highway Agency.