US Bridges

Mackville Road over South Fork Coyote Creek

Fair

San Joaquin County, California · 0.9 MI S of Liberty Road · Structure no. 29C0291

Built
1969
56 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete Continuous
Length
49 ft
2 main spans
Daily traffic
239
2013 count
Owner
County
County Highway Agency

About this bridge

Mackville Road over South Fork Coyote Creek is a concrete continuous slab carrying Mackville Road over South Fork Coyote Creek in San Joaquin County, California. It was built in 1969, so it is 56 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 239 vehicles a day, roughly 12% of them trucks, projected to reach 241 by 2046. The structure is 49 ft (14.9 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesMackville Road
CrossesSouth Fork Coyote Creek
Location0.9 MI S of Liberty Road
RouteCounty Highway 0
Coordinates38.22358, -121.08826
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
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.5 US tons
Inventory rating35.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length49 ft (14.9 m)
Longest span25 ft (7.6 m)
Deck width33 ft (10 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic239 (2013)
Projected traffic241 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Mackville Road over South Fork Coyote Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is Mackville Road over South Fork Coyote 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 January 2024.

How much traffic does Mackville Road over South Fork Coyote Creek carry?

About 239 vehicles per day (2013 count), of which roughly 12% are trucks.

How long is Mackville Road over South Fork Coyote Creek?

The structure is 49 ft (14.9 m) long with a longest span of 25 ft (7.6 m) and a deck 33 ft wide.

Who owns Mackville Road over South Fork Coyote Creek?

It is owned by the County Highway Agency.