US Bridges

FH 205;CHINA Basin over M.Fk. Boise River

FairPosted for load

Elmore County, Idaho · 0.5 N. Atlanta · Structure no. 000000000028003

Built
1958
67 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
51 ft
1 main span
Daily traffic
30
2023 count
Owner
Local
Other Local Agency

About this bridge

FH 205;CHINA Basin over M.Fk. Boise River is a steel stringer/multi-beam or girder carrying FH 205;CHINA Basin over M.Fk. Boise River in Elmore County, Idaho. It was built in 1958, so it is 67 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. Its operating status is: posted for load restriction.

It carries about 30 vehicles a day, roughly 33% of them trucks, projected to reach 45 by 2039. The structure is 51 ft (15.5 m) long and 14 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesFH 205;CHINA Basin
CrossesM.Fk. Boise River
Location0.5 N. Atlanta
RouteCounty Highway 0
CountyElmore County
StateIdaho
Coordinates43.80956, -115.12917
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating34 US tons
Inventory rating20 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span47 ft (14.3 m)
Deck width14 ft (4.3 m)
Roadway width13 ft (3.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic45 by 2039
Trucks33%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$513,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FH 205;CHINA Basin over M.Fk. Boise River built?

It was built in 1958, making it 67 years old in 2025.

What condition is FH 205;CHINA Basin over M.Fk. Boise 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 September 2023.

How much traffic does FH 205;CHINA Basin over M.Fk. Boise River carry?

About 30 vehicles per day (2023 count), of which roughly 33% are trucks.

How long is FH 205;CHINA Basin over M.Fk. Boise River?

The structure is 51 ft (15.5 m) long with a longest span of 47 ft (14.3 m) and a deck 14 ft wide.

Who owns FH 205;CHINA Basin over M.Fk. Boise River?

It is owned by the Other Local Agency.