US Bridges

Evergreen Road over Middle Fork Tuolumne Riv

Fair

Tuolumne County, California · 5.2 MI N State RTE 120 · Structure no. 32C0077

Built
2003
22 years old
Condition
Fair
inspected July 2023
Type
Slab
Prestressed Concrete
Length
61 ft
1 main span
Daily traffic
465
2015 count
Owner
County
County Highway Agency

About this bridge

Evergreen Road over Middle Fork Tuolumne Riv is a prestressed concrete slab carrying Evergreen Road over Middle Fork Tuolumne Riv in Tuolumne County, California. It was built in 2003, so it is 22 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 465 vehicles a day, roughly 2% of them trucks, projected to reach 274 by 2045. The structure is 61 ft (18.6 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesEvergreen Road
CrossesMiddle Fork Tuolumne Riv
Location5.2 MI N State RTE 120
RouteCounty Highway 0
CountyTuolumne County
StateCalifornia
Coordinates37.85641, -119.86504
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 48 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length61 ft (18.6 m)
Longest span61 ft (18.6 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic465 (2015)
Projected traffic274 by 2045
Trucks2%
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

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 Evergreen Road over Middle Fork Tuolumne Riv built?

It was built in 2003, making it 22 years old in 2025.

What condition is Evergreen Road over Middle Fork Tuolumne Riv 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 July 2023.

How much traffic does Evergreen Road over Middle Fork Tuolumne Riv carry?

About 465 vehicles per day (2015 count), of which roughly 2% are trucks.

How long is Evergreen Road over Middle Fork Tuolumne Riv?

The structure is 61 ft (18.6 m) long with a longest span of 61 ft (18.6 m) and a deck 28 ft wide.

Who owns Evergreen Road over Middle Fork Tuolumne Riv?

It is owned by the County Highway Agency.