US Bridges

Shelton Road over Calaveras River

Fair

San Joaquin County, California · 0.6 MI S Wimer RD · Structure no. 29C0107

Built
1976
49 years old
Condition
Fair
inspected November 2024
Type
Tee Beam
Concrete Continuous
Length
207 ft
3 main spans
Daily traffic
122
2013 count
Owner
County
County Highway Agency

About this bridge

Shelton Road over Calaveras River is a concrete continuous tee beam carrying Shelton Road over Calaveras River in San Joaquin County, California. It was built in 1976, so it is 49 years old, younger 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 122 vehicles a day, roughly 1% of them trucks, projected to reach 230 by 2046. The structure is 207 ft (63.1 m) long and 33 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesShelton Road
CrossesCalaveras River
Location0.6 MI S Wimer RD
RouteCounty Highway 0
Coordinates38.07243, -120.93163
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating49.3 US tons
Inventory rating37.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length207 ft (63.1 m)
Longest span68 ft (20.7 m)
Deck width33 ft (10 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic122 (2013)
Projected traffic230 by 2046
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 Shelton Road over Calaveras River built?

It was built in 1976, making it 49 years old in 2025.

What condition is Shelton Road over Calaveras River 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 November 2024.

How much traffic does Shelton Road over Calaveras River carry?

About 122 vehicles per day (2013 count), of which roughly 1% are trucks.

How long is Shelton Road over Calaveras River?

The structure is 207 ft (63.1 m) long with a longest span of 68 ft (20.7 m) and a deck 33 ft wide.

Who owns Shelton Road over Calaveras River?

It is owned by the County Highway Agency.