US Bridges

Fs Route No. 419 over Ef Lightning Creek

Good

Bonner County, Idaho · Ef Lightning Creek · Structure no. 010400000012941

Built
2009
16 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
136 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Fs Route No. 419 over Ef Lightning Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Fs Route No. 419 over Ef Lightning Creek in Bonner County, Idaho. It was built in 2009, so it is 16 years old, younger 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 136 ft (41.4 m) long and 18 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesFs Route No. 419
CrossesEf Lightning Creek
LocationEf Lightning Creek
RouteFederal Lands Road 419
StateIdaho
Coordinates48.24064, -116.11105
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56.4 US tons
Inventory rating43.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length136 ft (41.4 m)
Longest span135 ft (41.1 m)
Deck width18 ft (5.6 m)
Roadway width16 ft (5 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 Fs Route No. 419 over Ef Lightning Creek built?

It was built in 2009, making it 16 years old in 2025.

What condition is Fs Route No. 419 over Ef Lightning Creek 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 August 2024.

How much traffic does Fs Route No. 419 over Ef Lightning Creek carry?

About 50 vehicles per day (latest count).

How long is Fs Route No. 419 over Ef Lightning Creek?

The structure is 136 ft (41.4 m) long with a longest span of 135 ft (41.1 m) and a deck 18 ft wide.

Who owns Fs Route No. 419 over Ef Lightning Creek?

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