US Bridges

Algerine RD over Sullivan Creek

Fair

Tuolumne County, California · 2.4 MI N/O Twist RD · Structure no. 32C0013

Built
1952
73 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
58 ft
1 main span
Daily traffic
1,950
2014 count
Owner
County
County Highway Agency

About this bridge

Algerine RD over Sullivan Creek is a steel stringer/multi-beam or girder carrying Algerine RD over Sullivan Creek in Tuolumne County, California. It was built in 1952, so it is 73 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 1,950 vehicles a day, roughly 4% of them trucks, projected to reach 2,772 by 2041. The structure is 58 ft (17.7 m) long and 29 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesAlgerine RD
CrossesSullivan Creek
Location2.4 MI N/O Twist RD
RouteCounty Highway 0
CountyTuolumne County
StateCalifornia
Coordinates37.91851, -120.39574
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.8 US tons
Inventory rating29.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length58 ft (17.7 m)
Longest span50 ft (15.2 m)
Deck width29 ft (8.8 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,950 (2014)
Projected traffic2,772 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Sullivan Creek built?

It was built in 1952, making it 73 years old in 2025.

What condition is Algerine RD over Sullivan 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 Sullivan Creek carry?

About 1,950 vehicles per day (2014 count), of which roughly 4% are trucks.

How long is Algerine RD over Sullivan Creek?

The structure is 58 ft (17.7 m) long with a longest span of 50 ft (15.2 m) and a deck 29 ft wide.

Who owns Algerine RD over Sullivan Creek?

It is owned by the County Highway Agency.