US Bridges

Gibson Road over Interstate 5

Good

Shasta County, California · 02-SHA-005-53.30 · Structure no. 06 0179

Built
1989
36 years old
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
226 ft
2 main spans
Daily traffic
200
1998 count
Owner
State
State Highway Agency

About this bridge

Gibson Road over Interstate 5 is a prestressed concrete continuous box beam or girders - multiple carrying Gibson Road over Interstate 5 in Shasta County, California. It was built in 1989, so it is 36 years old, younger 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 200 vehicles a day, roughly 5% of them trucks, projected to reach 327 by 2042. The structure is 226 ft (68.9 m) long and 44 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesGibson Road
CrossesInterstate 5
Location02-SHA-005-53.30
RouteCounty Highway 0
Coordinates41.0254, -122.39693
Functional classRural Local

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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length226 ft (68.9 m)
Longest span120 ft (36.5 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (1998)
Projected traffic327 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 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 Gibson Road over Interstate 5 built?

It was built in 1989, making it 36 years old in 2025.

What condition is Gibson 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 March 2024.

How much traffic does Gibson Road over Interstate 5 carry?

About 200 vehicles per day (1998 count), of which roughly 5% are trucks.

How long is Gibson Road over Interstate 5?

The structure is 226 ft (68.9 m) long with a longest span of 120 ft (36.5 m) and a deck 44 ft wide.

Who owns Gibson Road over Interstate 5?

It is owned by the State Highway Agency.