US Bridges

Hilltop DR over Interstate 5

Fair

Shasta County, California · 02-SHA-005-R16.15-RDG · Structure no. 06 0101

Built
1965
60 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
239 ft
4 main spans
Daily traffic
13,009
2017 count
Owner
State
State Highway Agency

About this bridge

Hilltop DR over Interstate 5 is a concrete continuous box beam or girders - multiple carrying Hilltop DR over Interstate 5 in Shasta County, California. It was built in 1965, so it is 60 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 13,009 vehicles a day, roughly 1% of them trucks, projected to reach 13,509 by 2045. The structure is 239 ft (72.7 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesHilltop DR
CrossesInterstate 5
Location02-SHA-005-R16.15-RDG
RouteCity Street 0
Coordinates40.59543, -122.36096
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 rating40.7 US tons
Inventory rating31.4 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length239 ft (72.7 m)
Longest span79 ft (24.1 m)
Deck width35 ft (10.7 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,009 (2017)
Projected traffic13,509 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 Hilltop DR over Interstate 5 built?

It was built in 1965, making it 60 years old in 2025.

What condition is Hilltop DR 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 June 2024.

How much traffic does Hilltop DR over Interstate 5 carry?

About 13,009 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is Hilltop DR over Interstate 5?

The structure is 239 ft (72.7 m) long with a longest span of 79 ft (24.1 m) and a deck 35 ft wide.

Who owns Hilltop DR over Interstate 5?

It is owned by the State Highway Agency.