US Bridges

Schadd Road over Middle Fork Mokelumne Ri

Fair

Calaveras County, California · 4 MI E of Wilseyville · Structure no. 30C0027

Built
1968
57 years old
Condition
Fair
inspected March 2024
Type
Tee Beam
Concrete
Length
52 ft
1 main span
Daily traffic
35
2011 count
Owner
County
County Highway Agency

About this bridge

Schadd Road over Middle Fork Mokelumne Ri is a concrete tee beam carrying Schadd Road over Middle Fork Mokelumne Ri in Calaveras 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 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 35 vehicles a day, roughly 1% of them trucks, projected to reach 140 by 2042. The structure is 52 ft (15.8 m) long and 29 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSchadd Road
CrossesMiddle Fork Mokelumne Ri
Location4 MI E of Wilseyville
RouteCounty Highway 0
Coordinates38.38857, -120.45013
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating91.1 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span48 ft (14.6 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2011)
Projected traffic140 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-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 Schadd Road over Middle Fork Mokelumne Ri built?

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

What condition is Schadd Road over Middle Fork Mokelumne Ri 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 Schadd Road over Middle Fork Mokelumne Ri carry?

About 35 vehicles per day (2011 count), of which roughly 1% are trucks.

How long is Schadd Road over Middle Fork Mokelumne Ri?

The structure is 52 ft (15.8 m) long with a longest span of 48 ft (14.6 m) and a deck 29 ft wide.

Who owns Schadd Road over Middle Fork Mokelumne Ri?

It is owned by the County Highway Agency.