US Bridges

Old Alturas Road over Dry Creek

Fair

Shasta County, California · 0.2 MI E Deschutes RD · Structure no. 06C0091

Built
1970
55 years old
Condition
Fair
inspected September 2023
Type
Slab
Concrete Continuous
Length
110 ft
5 main spans
Daily traffic
1,691
2013 count
Owner
County
County Highway Agency

About this bridge

Old Alturas Road over Dry Creek is a concrete continuous slab carrying Old Alturas Road over Dry Creek in Shasta County, California. It was built in 1970, so it is 55 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 1,691 vehicles a day, roughly 5% of them trucks, projected to reach 3,000 by 2042. The structure is 110 ft (33.5 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesOld Alturas Road
CrossesDry Creek
Location0.2 MI E Deschutes RD
RouteCounty Highway 0
CountyShasta County
StateCalifornia
Coordinates40.63691, -122.23867
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
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 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 rating56.8 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length110 ft (33.5 m)
Longest span22 ft (6.7 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,691 (2013)
Projected traffic3,000 by 2042
Trucks5%
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 Old Alturas Road over Dry Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Old Alturas Road over Dry 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 September 2023.

How much traffic does Old Alturas Road over Dry Creek carry?

About 1,691 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is Old Alturas Road over Dry Creek?

The structure is 110 ft (33.5 m) long with a longest span of 22 ft (6.7 m) and a deck 29 ft wide.

Who owns Old Alturas Road over Dry Creek?

It is owned by the County Highway Agency.