US Bridges

Old Tioga Road over Yosemite Creek

Fair

Mariposa County, California · At Yosemite Creek Cmpgrnd · Structure no. 8800022P0000000

Built
1980
45 years old, rebuilt 2009
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
25
2019 count
Owner
Federal
National Park Service

About this bridge

Old Tioga Road over Yosemite Creek is a steel stringer/multi-beam or girder carrying Old Tioga Road over Yosemite Creek in Mariposa County, California. It was built in 1980 and reconstructed in 2009, 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 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 25 vehicles a day, roughly 1% of them trucks, projected to reach 50 by 2039. The structure is 40 ft (12.2 m) long and 14 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesOld Tioga Road
CrossesYosemite Creek
LocationAt Yosemite Creek Cmpgrnd
RouteFederal Lands Road 0
CountyMariposa County
StateCalifornia
Coordinates37.82719, -119.59443
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating60 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span38 ft (11.5 m)
Deck width14 ft (4.3 m)
Roadway width11 ft (3.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2019)
Projected traffic50 by 2039
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerNational Park Service
Maintained byNational Park Service
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 Old Tioga Road over Yosemite Creek built?

It was built in 1980, making it 45 years old in 2025. It was reconstructed in 2009.

What condition is Old Tioga Road over Yosemite 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 September 2024.

How much traffic does Old Tioga Road over Yosemite Creek carry?

About 25 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Old Tioga Road over Yosemite Creek?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.5 m) and a deck 14 ft wide.

Who owns Old Tioga Road over Yosemite Creek?

It is owned by the National Park Service.