US Bridges

Zogg Mine RD over Andrew Creek

Good

Shasta County, California · 1.1 MI N of South Fork RD · Structure no. 06C0328

Built
1975
50 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete Continuous
Length
40 ft
2 main spans
Daily traffic
162
2012 count
Owner
County
County Highway Agency

About this bridge

Zogg Mine RD over Andrew Creek is a concrete continuous slab carrying Zogg Mine RD over Andrew Creek in Shasta County, California. It was built in 1975, so it is 50 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 162 vehicles a day, roughly 5% of them trucks, projected to reach 307 by 2044. The structure is 40 ft (12.2 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesZogg Mine RD
CrossesAndrew Creek
Location1.1 MI N of South Fork RD
RouteCounty Highway 0
Coordinates40.51881, -122.5504
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span19 ft (5.8 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic162 (2012)
Projected traffic307 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Zogg Mine RD over Andrew Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Zogg Mine RD over Andrew Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does Zogg Mine RD over Andrew Creek carry?

About 162 vehicles per day (2012 count), of which roughly 5% are trucks.

How long is Zogg Mine RD over Andrew Creek?

The structure is 40 ft (12.2 m) long with a longest span of 19 ft (5.8 m) and a deck 25 ft wide.

Who owns Zogg Mine RD over Andrew Creek?

It is owned by the County Highway Agency.