US Bridges

Sheep Ranch RD over Mckinney Creek

Fair

Calaveras County, California · 0.4 MI SE Mtn Ranch RD · Structure no. 30C0041

Built
1967
58 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
801
2008 count
Owner
County
County Highway Agency

About this bridge

Sheep Ranch RD over Mckinney Creek is a concrete continuous culvert carrying Sheep Ranch RD over Mckinney Creek in Calaveras County, California. It was built in 1967, so it is 58 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 801 vehicles a day, roughly 10% of them trucks, projected to reach 947 by 2042. The structure is 21 ft (6.4 m) long and 30 ft wide. If it were closed, the detour would be 52.2 mi (84 km).

CarriesSheep Ranch RD
CrossesMckinney Creek
Location0.4 MI SE Mtn Ranch RD
RouteCounty Highway 0
Coordinates38.24239, -120.50989
Functional classRural Major 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic801 (2008)
Projected traffic947 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed52.2 mi (84 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 Sheep Ranch RD over Mckinney Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is Sheep Ranch RD over Mckinney 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 March 2024.

How much traffic does Sheep Ranch RD over Mckinney Creek carry?

About 801 vehicles per day (2008 count), of which roughly 10% are trucks.

How long is Sheep Ranch RD over Mckinney Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 30 ft wide.

Who owns Sheep Ranch RD over Mckinney Creek?

It is owned by the County Highway Agency.