US Bridges

Copco RD over Fall Creek

Fair

Siskiyou County, California · 0.3 MI W Fall Creek RD · Structure no. 02C0198

Built
1969
56 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
28 ft
1 main span
Daily traffic
42
2020 count
Owner
County
County Highway Agency

About this bridge

Copco RD over Fall Creek is a wood or timber stringer/multi-beam or girder carrying Copco RD over Fall Creek in Siskiyou County, California. It was built in 1969, so it is 56 years old, older than the California average of 54.8 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.

It carries about 42 vehicles a day, roughly 5% of them trucks, projected to reach 65 by 2041. The structure is 28 ft (8.5 m) long and 25 ft wide. If it were closed, the detour would be 34.2 mi (55 km).

CarriesCopco RD
CrossesFall Creek
Location0.3 MI W Fall Creek RD
RouteCounty Highway 0
Coordinates41.98393, -122.36219
Functional classRural Minor 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34 US tons
Inventory rating26.8 US tons

Structure

MaterialWood or Timber
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span25 ft (7.5 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic42 (2020)
Projected traffic65 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.2 mi (55 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Copco RD over Fall Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is Copco RD over Fall 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 August 2024.

How much traffic does Copco RD over Fall Creek carry?

About 42 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Copco RD over Fall Creek?

The structure is 28 ft (8.5 m) long with a longest span of 25 ft (7.5 m) and a deck 25 ft wide.

Who owns Copco RD over Fall Creek?

It is owned by the County Highway Agency.