US Bridges

Phifer Creek Road over M.Fk.Boise River

Good

Elmore County, Idaho · 0.9 N. 11.3 W. Atlanta · Structure no. 000000000027972

Built
1968
57 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
88 ft
3 main spans
Daily traffic
30
2023 count
Owner
Local
Other Local Agency

About this bridge

Phifer Creek Road over M.Fk.Boise River is a steel continuous stringer/multi-beam or girder carrying Phifer Creek Road over M.Fk.Boise River in Elmore County, Idaho. It was built in 1968, so it is 57 years old, older than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 30 vehicles a day, roughly 33% of them trucks, projected to reach 45 by 2039. The structure is 88 ft (26.8 m) long and 15 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesPhifer Creek Road
CrossesM.Fk.Boise River
Location0.9 N. 11.3 W. Atlanta
RouteCounty Highway 0
StateIdaho
Coordinates43.81872, -115.35811
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating68 US tons
Inventory rating51 US tons

Structure

MaterialSteel Continuous
DeckWood or timber
Main spans3
Design loadOther
Structure length88 ft (26.8 m)
Longest span56 ft (17.1 m)
Deck width15 ft (4.7 m)
Roadway width14 ft (4.3 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 closed19.9 mi (32 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Phifer Creek Road over M.Fk.Boise River built?

It was built in 1968, making it 57 years old in 2025.

What condition is Phifer Creek Road over M.Fk.Boise River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does Phifer Creek Road over M.Fk.Boise River carry?

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

How long is Phifer Creek Road over M.Fk.Boise River?

The structure is 88 ft (26.8 m) long with a longest span of 56 ft (17.1 m) and a deck 15 ft wide.

Who owns Phifer Creek Road over M.Fk.Boise River?

It is owned by the Other Local Agency.