US Bridges

Canyon Creek Road over Canyon Creek

Fair

Trinity County, California · 12.4 M N Junction City · Structure no. 05C0056

Built
1955
70 years old, rebuilt 1995
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
46 ft
1 main span
Daily traffic
65
2009 count
Owner
County
County Highway Agency

About this bridge

Canyon Creek Road over Canyon Creek is a steel stringer/multi-beam or girder carrying Canyon Creek Road over Canyon Creek in Trinity County, California. It was built in 1955 and reconstructed in 1995, so it is 70 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 5 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 65 vehicles a day, roughly 4% of them trucks, projected to reach 70 by 2042. The structure is 46 ft (14 m) long and 18 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesCanyon Creek Road
CrossesCanyon Creek
Location12.4 M N Junction City
RouteCounty Highway 0
CountyTrinity County
StateCalifornia
Coordinates40.85694, -123.04553
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating74.3 US tons
Inventory rating44.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckOpen grating
Main spans1
Design loadUnknown
Structure length46 ft (14 m)
Longest span42 ft (12.8 m)
Deck width18 ft (5.6 m)
Roadway width17 ft (5.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65 (2009)
Projected traffic70 by 2042
Trucks4%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Canyon Creek Road over Canyon Creek built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1995.

What condition is Canyon Creek Road over Canyon 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 2023.

How much traffic does Canyon Creek Road over Canyon Creek carry?

About 65 vehicles per day (2009 count), of which roughly 4% are trucks.

How long is Canyon Creek Road over Canyon Creek?

The structure is 46 ft (14 m) long with a longest span of 42 ft (12.8 m) and a deck 18 ft wide.

Who owns Canyon Creek Road over Canyon Creek?

It is owned by the County Highway Agency.