US Bridges

Fdr 394 over Four Lakes Ditch

FairPosted for load

Johnson County, Wyoming · 3.0 MI W of Usfs RD 19 · Structure no. 020201000001011

Built
1989
36 years old, rebuilt 1993
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
25 ft
1 main span
Daily traffic
10
1993 count
Owner
Federal
U.S. Forest Service

About this bridge

Fdr 394 over Four Lakes Ditch is a wood or timber stringer/multi-beam or girder carrying Fdr 394 over Four Lakes Ditch in Johnson County, Wyoming. It was built in 1989 and reconstructed in 1993, so it is 36 years old, younger than the Wyoming average of 48.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 10 vehicles a day, projected to reach 20 by 2013. The structure is 25 ft (7.5 m) long and 12 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

Location

Open in Google Maps
CarriesFdr 394
CrossesFour Lakes Ditch
Location3.0 MI W of Usfs RD 19
RouteFederal Lands Road 394
CountyJohnson County
StateWyoming
Coordinates44.33785, -106.99827
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating13.6 US tons
Inventory rating10.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length25 ft (7.5 m)
Longest span23 ft (7 m)
Deck width12 ft (3.7 m)
Roadway width11 ft (3.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (1993)
Projected traffic20 by 2013
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Fdr 394 over Four Lakes Ditch built?

It was built in 1989, making it 36 years old in 2025. It was reconstructed in 1993.

What condition is Fdr 394 over Four Lakes Ditch 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 2024.

How much traffic does Fdr 394 over Four Lakes Ditch carry?

About 10 vehicles per day (1993 count).

How long is Fdr 394 over Four Lakes Ditch?

The structure is 25 ft (7.5 m) long with a longest span of 23 ft (7 m) and a deck 12 ft wide.

Who owns Fdr 394 over Four Lakes Ditch?

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