US Bridges

Edgewood RD over Shasta River

Good

Siskiyou County, California · 0.1 MI E Slough RD · Structure no. 02C0037

Built
1969
56 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
163 ft
2 main spans
Daily traffic
395
2011 count
Owner
County
County Highway Agency

About this bridge

Edgewood RD over Shasta River is a concrete continuous box beam or girders - multiple carrying Edgewood RD over Shasta River in Siskiyou 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 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 395 vehicles a day, roughly 20% of them trucks, projected to reach 758 by 2041. The structure is 163 ft (49.8 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesEdgewood RD
CrossesShasta River
Location0.1 MI E Slough RD
RouteCounty Highway 0
Coordinates41.47082, -122.44112
Functional classRural Minor Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating43.2 US tons
Inventory rating33.2 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length163 ft (49.8 m)
Longest span80 ft (24.4 m)
Deck width29 ft (8.8 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic395 (2011)
Projected traffic758 by 2041
Trucks20%
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 Edgewood RD over Shasta River built?

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

What condition is Edgewood RD over Shasta River 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 June 2023.

How much traffic does Edgewood RD over Shasta River carry?

About 395 vehicles per day (2011 count), of which roughly 20% are trucks.

How long is Edgewood RD over Shasta River?

The structure is 163 ft (49.8 m) long with a longest span of 80 ft (24.4 m) and a deck 29 ft wide.

Who owns Edgewood RD over Shasta River?

It is owned by the County Highway Agency.