US Bridges

Dogtown Road over San Antonio Creek

Fair

Calaveras County, California · 9.2 Iles N/O SR 49 · Structure no. 30C0052

Built
2001
24 years old
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
115 ft
1 main span
Daily traffic
100
2006 count
Owner
County
County Highway Agency

About this bridge

Dogtown Road over San Antonio Creek is a prestressed concrete box beam or girders - multiple carrying Dogtown Road over San Antonio Creek in Calaveras County, California. It was built in 2001, so it is 24 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 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 100 vehicles a day, projected to reach 125 by 2044. The structure is 115 ft (35 m) long and 26 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesDogtown Road
CrossesSan Antonio Creek
Location9.2 Iles N/O SR 49
RouteCounty Highway 0
CountyCalaveras County
StateCalifornia
Coordinates38.1476, -120.57487
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 protection9 ExcellentNo problems noted.
Last inspectionMarch 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length115 ft (35 m)
Longest span115 ft (35 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2006)
Projected traffic125 by 2044
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 Dogtown Road over San Antonio Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is Dogtown Road over San Antonio 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 March 2024.

How much traffic does Dogtown Road over San Antonio Creek carry?

About 100 vehicles per day (2006 count).

How long is Dogtown Road over San Antonio Creek?

The structure is 115 ft (35 m) long with a longest span of 115 ft (35 m) and a deck 26 ft wide.

Who owns Dogtown Road over San Antonio Creek?

It is owned by the County Highway Agency.