US Bridges

Algerine Rd. over Algerine Creek

Fair

Tuolumne County, California · 0.4 MI N Twist RD · Structure no. 32C0073

Built
1940
85 years old
Condition
Fair
inspected July 2023
Type
Slab
Concrete Continuous
Length
34 ft
2 main spans
Daily traffic
263
2015 count
Owner
County
County Highway Agency

About this bridge

Algerine Rd. over Algerine Creek is a concrete continuous slab carrying Algerine Rd. over Algerine Creek in Tuolumne County, California. It was built in 1940, so it is 85 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 5 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 263 vehicles a day, roughly 1% of them trucks, projected to reach 1,535 by 2041. The structure is 34 ft (10.4 m) long and 20 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesAlgerine Rd.
CrossesAlgerine Creek
Location0.4 MI N Twist RD
RouteCounty Highway 0
CountyTuolumne County
StateCalifornia
Coordinates37.90617, -120.36661
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating29.7 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length34 ft (10.4 m)
Longest span16 ft (4.9 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic263 (2015)
Projected traffic1,535 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Algerine Rd. over Algerine Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is Algerine Rd. over Algerine 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 July 2023.

How much traffic does Algerine Rd. over Algerine Creek carry?

About 263 vehicles per day (2015 count), of which roughly 1% are trucks.

How long is Algerine Rd. over Algerine Creek?

The structure is 34 ft (10.4 m) long with a longest span of 16 ft (4.9 m) and a deck 20 ft wide.

Who owns Algerine Rd. over Algerine Creek?

It is owned by the County Highway Agency.