US Bridges

S3792;UPPR Pleasnt over Deer Flat Canal

FairPosted for load

Canyon County, Idaho · 2.0 S. 3.2 E. Wilder · Structure no. 000000000027010

Built
1950
75 years old, rebuilt 1972
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
37 ft
2 main spans
Daily traffic
370
2023 count
Owner
Local
Other Local Agency

About this bridge

S3792;UPPR Pleasnt over Deer Flat Canal is a wood or timber stringer/multi-beam or girder carrying S3792;UPPR Pleasnt over Deer Flat Canal in Canyon County, Idaho. It was built in 1950 and reconstructed in 1972, so it is 75 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 370 vehicles a day, roughly 3% of them trucks, projected to reach 555 by 2042. The structure is 37 ft (11.3 m) long and 24 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesS3792;UPPR Pleasnt
CrossesDeer Flat Canal
Location2.0 S. 3.2 E. Wilder
RouteCounty Highway 3792
StateIdaho
Coordinates43.64725, -116.84898
Functional classRural Major Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating12 US tons
Inventory rating9 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadH 10
Structure length37 ft (11.3 m)
Longest span17 ft (5.2 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic370 (2023)
Projected traffic555 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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$438,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S3792;UPPR Pleasnt over Deer Flat Canal built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1972.

What condition is S3792;UPPR Pleasnt over Deer Flat Canal 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 November 2023.

How much traffic does S3792;UPPR Pleasnt over Deer Flat Canal carry?

About 370 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is S3792;UPPR Pleasnt over Deer Flat Canal?

The structure is 37 ft (11.3 m) long with a longest span of 17 ft (5.2 m) and a deck 24 ft wide.

Who owns S3792;UPPR Pleasnt over Deer Flat Canal?

It is owned by the Other Local Agency.