US Bridges

Union School Road over Interstate 5

Fair

Shasta County, California · 02-SHA-005-R22.41 · Structure no. 06 0015

Built
1968
57 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
234 ft
2 main spans
Daily traffic
2,065
1998 count
Owner
State
State Highway Agency

About this bridge

Union School Road over Interstate 5 is a steel continuous stringer/multi-beam or girder carrying Union School Road over Interstate 5 in Shasta 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 6 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 2,065 vehicles a day, roughly 1% of them trucks, projected to reach 4,303 by 2042. The structure is 234 ft (71.3 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesUnion School Road
CrossesInterstate 5
Location02-SHA-005-R22.41
RouteCounty Highway 0
CountyShasta County
StateCalifornia
Coordinates40.68301, -122.34777
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68.6 US tons
Inventory rating41.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length234 ft (71.3 m)
Longest span118 ft (36 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,065 (1998)
Projected traffic4,303 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 Union School Road over Interstate 5 built?

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

What condition is Union School Road over Interstate 5 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 2024.

How much traffic does Union School Road over Interstate 5 carry?

About 2,065 vehicles per day (1998 count), of which roughly 1% are trucks.

How long is Union School Road over Interstate 5?

The structure is 234 ft (71.3 m) long with a longest span of 118 ft (36 m) and a deck 34 ft wide.

Who owns Union School Road over Interstate 5?

It is owned by the State Highway Agency.