US Bridges

Stc 1699;CANYON RD over Coeur Dalene River

PoorPosted for load

Kootenai County, Idaho · At Cataldo · Structure no. 000000000030590

Built
1936
89 years old
Condition
Poor
inspected June 2024
Type
Truss - Thru
Steel
Length
328 ft
1 main span
Daily traffic
680
2023 count
Owner
Local
Other Local Agency

About this bridge

Stc 1699;CANYON RD over Coeur Dalene River is a steel truss - thru carrying Stc 1699;CANYON RD over Coeur Dalene River in Kootenai County, Idaho. It was built in 1936, so it is 89 years old, older 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 4 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. Its operating status is: posted for load restriction.

It carries about 680 vehicles a day, projected to reach 1,020 by 2042. The structure is 328 ft (100 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesStc 1699;CANYON RD
CrossesCoeur Dalene River
LocationAt Cataldo
RouteCounty Highway 1699
StateIdaho
Coordinates47.54767, -116.33542
Functional classRural Major Collector

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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating16 US tons
Inventory rating9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadH 15
Structure length328 ft (100 m)
Longest span250 ft (76.2 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck15 ft (4.7 m)

Traffic and service

Average daily traffic680 (2023)
Projected traffic1,020 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$4.3 million (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Stc 1699;CANYON RD over Coeur Dalene River built?

It was built in 1936, making it 89 years old in 2025.

What condition is Stc 1699;CANYON RD over Coeur Dalene River 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 June 2024.

How much traffic does Stc 1699;CANYON RD over Coeur Dalene River carry?

About 680 vehicles per day (2023 count).

How long is Stc 1699;CANYON RD over Coeur Dalene River?

The structure is 328 ft (100 m) long with a longest span of 250 ft (76.2 m) and a deck 27 ft wide.

Who owns Stc 1699;CANYON RD over Coeur Dalene River?

It is owned by the Other Local Agency.