US Bridges

Interstate 5 over Parks Creek

Good

Siskiyou County, California · 02-SIS-005-R27.18 · Structure no. 02 0141R

Built
1969
56 years old
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
245 ft
3 main spans
Daily traffic
7,400
2024 count
Owner
State
State Highway Agency

About this bridge

Interstate 5 over Parks Creek is a concrete continuous box beam or girders - multiple carrying Interstate 5 over Parks Creek 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 7,400 vehicles a day, roughly 25% of them trucks, projected to reach 11,259 by 2045. The structure is 245 ft (74.7 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 5
CrossesParks Creek
Location02-SIS-005-R27.18
RouteInterstate 5
Coordinates41.49762, -122.46408
Functional classRural Principal Arterial - Interstate

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 protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating49.3 US tons
Inventory rating36.8 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length245 ft (74.7 m)
Longest span102 ft (31.1 m)
Deck width41 ft (12.5 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,400 (2024)
Projected traffic11,259 by 2045
Trucks25%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Interstate 5 over Parks Creek built?

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

What condition is Interstate 5 over Parks Creek 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 July 2024.

How much traffic does Interstate 5 over Parks Creek carry?

About 7,400 vehicles per day (2024 count), of which roughly 25% are trucks.

How long is Interstate 5 over Parks Creek?

The structure is 245 ft (74.7 m) long with a longest span of 102 ft (31.1 m) and a deck 41 ft wide.

Who owns Interstate 5 over Parks Creek?

It is owned by the State Highway Agency.