US Bridges

Fall Ck.-Rocky Bar over East Fork Fall Creek

Poor

Elmore County, Idaho · 1 MI N.W. of Red Mountain · Structure no. 040201000021634

Built
2013
12 years old
Condition
Poor
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
41 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Fall Ck.-Rocky Bar over East Fork Fall Creek is a steel stringer/multi-beam or girder carrying Fall Ck.-Rocky Bar over East Fork Fall Creek in Elmore County, Idaho. It was built in 2013, so it is 12 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 2 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 41 ft (12.4 m) long and 14 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesFall Ck.-Rocky Bar
CrossesEast Fork Fall Creek
Location1 MI N.W. of Red Mountain
RouteFederal Lands Road 129
StateIdaho
Coordinates43.54319, -115.43323
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; extensive scour has occurred
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.8 US tons
Inventory rating55.3 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadH 20
Structure length41 ft (12.4 m)
Longest span40 ft (12.2 m)
Deck width14 ft (4.3 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Fall Ck.-Rocky Bar over East Fork Fall Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is Fall Ck.-Rocky Bar over East Fork Fall Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2023.

How much traffic does Fall Ck.-Rocky Bar over East Fork Fall Creek carry?

About 50 vehicles per day (latest count).

How long is Fall Ck.-Rocky Bar over East Fork Fall Creek?

The structure is 41 ft (12.4 m) long with a longest span of 40 ft (12.2 m) and a deck 14 ft wide.

Who owns Fall Ck.-Rocky Bar over East Fork Fall Creek?

It is owned by the U.S. Forest Service.