US Bridges

Azalea Road over Interstate 5

Good

Siskiyou County, California · 02-SIS-005-R8.29 · Structure no. 02 0126

Built
1964
61 years old
Condition
Good
inspected September 2023
Type
Tee Beam
Concrete Continuous
Length
262 ft
4 main spans
Daily traffic
500
2015 count
Owner
State
State Highway Agency

About this bridge

Azalea Road over Interstate 5 is a concrete continuous tee beam carrying Azalea Road over Interstate 5 in Siskiyou County, California. It was built in 1964, so it is 61 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 500 vehicles a day, roughly 2% of them trucks, projected to reach 650 by 2040. The structure is 262 ft (79.9 m) long and 34 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesAzalea Road
CrossesInterstate 5
Location02-SIS-005-R8.29
RouteCounty Highway 0
Coordinates41.2831, -122.29938
Functional classRural Minor Arterial

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.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating31.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length262 ft (79.9 m)
Longest span76 ft (23.3 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2015)
Projected traffic650 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed18 mi (29 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Azalea Road over Interstate 5 built?

It was built in 1964, making it 61 years old in 2025.

What condition is Azalea Road over Interstate 5 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 September 2023.

How much traffic does Azalea Road over Interstate 5 carry?

About 500 vehicles per day (2015 count), of which roughly 2% are trucks.

How long is Azalea Road over Interstate 5?

The structure is 262 ft (79.9 m) long with a longest span of 76 ft (23.3 m) and a deck 34 ft wide.

Who owns Azalea Road over Interstate 5?

It is owned by the State Highway Agency.