US Bridges

Chub Flat Rd. over Meadow Creek

Fair

Caribou County, Idaho · 7.6 W. Wayan · Structure no. 000000000023213

Built
1972
53 years old
Condition
Fair
inspected October 2023
Type
Tee Beam
Prestressed Concrete
Length
43 ft
1 main span
Daily traffic
2
2023 count
Owner
County
County Highway Agency

About this bridge

Chub Flat Rd. over Meadow Creek is a prestressed concrete tee beam carrying Chub Flat Rd. over Meadow Creek in Caribou County, Idaho. It was built in 1972, so it is 53 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 2 vehicles a day, projected to reach 3 by 2039. The structure is 43 ft (13.1 m) long and 17 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesChub Flat Rd.
CrossesMeadow Creek
Location7.6 W. Wayan
RouteCounty Highway 0
CountyCaribou County
StateIdaho
Coordinates42.97689, -111.52725
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38 US tons
Inventory rating23 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span41 ft (12.5 m)
Deck width17 ft (5.1 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2 (2023)
Projected traffic3 by 2039
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$360,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Chub Flat Rd. over Meadow Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is Chub Flat Rd. over Meadow 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 October 2023.

How much traffic does Chub Flat Rd. over Meadow Creek carry?

About 2 vehicles per day (2023 count).

How long is Chub Flat Rd. over Meadow Creek?

The structure is 43 ft (13.1 m) long with a longest span of 41 ft (12.5 m) and a deck 17 ft wide.

Who owns Chub Flat Rd. over Meadow Creek?

It is owned by the County Highway Agency.