US Bridges

Yosemite RD over Turnback Creek

Good

Tuolumne County, California · 0.3 MI W/O Oak ST · Structure no. 32C0025

Built
1980
45 years old
Condition
Good
inspected May 2024
Type
Slab
Concrete Continuous
Length
98 ft
3 main spans
Daily traffic
905
2008 count
Owner
County
County Highway Agency

About this bridge

Yosemite RD over Turnback Creek is a concrete continuous slab carrying Yosemite RD over Turnback Creek in Tuolumne County, California. It was built in 1980, so it is 45 years old, younger 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 905 vehicles a day, roughly 6% of them trucks, projected to reach 1,587 by 2042. The structure is 98 ft (29.9 m) long and 33 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesYosemite RD
CrossesTurnback Creek
Location0.3 MI W/O Oak ST
RouteCounty Highway 0
Coordinates37.95063, -120.24737
Functional classRural Minor Collector

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 inspectionMay 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating83.9 US tons
Inventory rating50.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length98 ft (29.9 m)
Longest span32 ft (9.8 m)
Deck width33 ft (10 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic905 (2008)
Projected traffic1,587 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 Yosemite RD over Turnback Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is Yosemite RD over Turnback 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 May 2024.

How much traffic does Yosemite RD over Turnback Creek carry?

About 905 vehicles per day (2008 count), of which roughly 6% are trucks.

How long is Yosemite RD over Turnback Creek?

The structure is 98 ft (29.9 m) long with a longest span of 32 ft (9.8 m) and a deck 33 ft wide.

Who owns Yosemite RD over Turnback Creek?

It is owned by the County Highway Agency.