US Bridges

Mays Canyon RD over Pocket Canyon Creek

Good

Sonoma County, California · Just W of S.R. 116 · Structure no. 20C0375

Built
1968
57 years old
Condition
Good
inspected October 2023
Type
Slab
Concrete
Length
33 ft
1 main span
Daily traffic
95
2015 count
Owner
County
County Highway Agency

About this bridge

Mays Canyon RD over Pocket Canyon Creek is a concrete slab carrying Mays Canyon RD over Pocket Canyon Creek in Sonoma County, California. It was built in 1968, so it is 57 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 95 vehicles a day, projected to reach 110 by 2040. The structure is 33 ft (10.1 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesMays Canyon RD
CrossesPocket Canyon Creek
LocationJust W of S.R. 116
RouteCounty Highway 0
Coordinates38.48591, -122.96232
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.7 US tons
Inventory rating35.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span31 ft (9.4 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic95 (2015)
Projected traffic110 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Mays Canyon RD over Pocket Canyon Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is Mays Canyon RD over Pocket Canyon Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does Mays Canyon RD over Pocket Canyon Creek carry?

About 95 vehicles per day (2015 count).

How long is Mays Canyon RD over Pocket Canyon Creek?

The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.4 m) and a deck 24 ft wide.

Who owns Mays Canyon RD over Pocket Canyon Creek?

It is owned by the County Highway Agency.