US Bridges

STC5722;CHATCOLET over Plummer Creek

FairPosted for load

Benewah County, Idaho · In Chatcolet · Structure no. 000000000020435

Built
1961
64 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
83 ft
3 main spans
Daily traffic
210
2023 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

STC5722;CHATCOLET over Plummer Creek is a wood or timber stringer/multi-beam or girder carrying STC5722;CHATCOLET over Plummer Creek in Benewah County, Idaho. It was built in 1961, so it is 64 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 210 vehicles a day, roughly 17% of them trucks, projected to reach 315 by 2042. The structure is 83 ft (25.3 m) long and 24 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

CarriesSTC5722;CHATCOLET
CrossesPlummer Creek
LocationIn Chatcolet
RouteCounty Highway 5722
StateIdaho
Coordinates47.35631, -116.78186
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating24 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadH 15
Structure length83 ft (25.3 m)
Longest span27 ft (8.2 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2023)
Projected traffic315 by 2042
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$909,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was STC5722;CHATCOLET over Plummer Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is STC5722;CHATCOLET over Plummer Creek 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 July 2024.

How much traffic does STC5722;CHATCOLET over Plummer Creek carry?

About 210 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is STC5722;CHATCOLET over Plummer Creek?

The structure is 83 ft (25.3 m) long with a longest span of 27 ft (8.2 m) and a deck 24 ft wide.

Who owns STC5722;CHATCOLET over Plummer Creek?

It is owned by the State Park, Forest, or Reservation Agency.