US Bridges

Canyon RD over Berry Creek

Fair

Mendocino County, California · 0.2 MI E JCT With E RD · Structure no. 10C0115

Built
1966
59 years old, rebuilt 1983
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
43 ft
2 main spans
Daily traffic
501
2011 count
Owner
County
County Highway Agency

About this bridge

Canyon RD over Berry Creek is a steel continuous stringer/multi-beam or girder carrying Canyon RD over Berry Creek in Mendocino County, California. It was built in 1966 and reconstructed in 1983, so it is 59 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 501 vehicles a day, roughly 2% of them trucks, projected to reach 436 by 2041. The structure is 43 ft (13.1 m) long and 21 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesCanyon RD
CrossesBerry Creek
Location0.2 MI E JCT With E RD
RouteCounty Highway 0
Coordinates39.42519, -123.29912
Functional classRural Local

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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating106 US tons
Inventory rating63.6 US tons

Structure

MaterialSteel Continuous
DeckWood or timber
Main spans2
Design loadUnknown
Structure length43 ft (13.1 m)
Longest span21 ft (6.3 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic501 (2011)
Projected traffic436 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 RD over Berry Creek built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1983.

What condition is Canyon RD over Berry 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 September 2023.

How much traffic does Canyon RD over Berry Creek carry?

About 501 vehicles per day (2011 count), of which roughly 2% are trucks.

How long is Canyon RD over Berry Creek?

The structure is 43 ft (13.1 m) long with a longest span of 21 ft (6.3 m) and a deck 21 ft wide.

Who owns Canyon RD over Berry Creek?

It is owned by the County Highway Agency.