US Bridges

Vista Del Lago DR over Cosgrove Creek

Fair

Calaveras County, California · 0.3 MI E of S.R. 26 · Structure no. 30C0080

Built
1968
57 years old
Condition
Fair
inspected February 2025
Type
Slab
Concrete Continuous
Length
68 ft
3 main spans
Daily traffic
3,090
2011 count
Owner
County
County Highway Agency

About this bridge

Vista Del Lago DR over Cosgrove Creek is a concrete continuous slab carrying Vista Del Lago DR over Cosgrove Creek in Calaveras County, California. It was built in 1968, so it is 57 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 3,090 vehicles a day, roughly 1% of them trucks, projected to reach 3,216 by 2047. The structure is 68 ft (20.7 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesVista Del Lago DR
CrossesCosgrove Creek
Location0.3 MI E of S.R. 26
RouteCounty Highway 0
CountyCalaveras County
StateCalifornia
Coordinates38.16608, -120.83459
Functional classRural Major 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
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 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 rating53.6 US tons
Inventory rating32.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length68 ft (20.7 m)
Longest span22 ft (6.7 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,090 (2011)
Projected traffic3,216 by 2047
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Vista Del Lago DR over Cosgrove Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is Vista Del Lago DR over Cosgrove 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 February 2025.

How much traffic does Vista Del Lago DR over Cosgrove Creek carry?

About 3,090 vehicles per day (2011 count), of which roughly 1% are trucks.

How long is Vista Del Lago DR over Cosgrove Creek?

The structure is 68 ft (20.7 m) long with a longest span of 22 ft (6.7 m) and a deck 34 ft wide.

Who owns Vista Del Lago DR over Cosgrove Creek?

It is owned by the County Highway Agency.