US Bridges

Blue Slide Road over Price Creek

Fair

Humboldt County, California · 3.9 MI NW of U.S.101 · Structure no. 04C0045

Built
1959
66 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
104 ft
1 main span
Daily traffic
302
2015 count
Owner
County
County Highway Agency

About this bridge

Blue Slide Road over Price Creek is a steel stringer/multi-beam or girder carrying Blue Slide Road over Price Creek in Humboldt County, California. It was built in 1959, so it is 66 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 302 vehicles a day, roughly 5% of them trucks, projected to reach 254 by 2042. The structure is 104 ft (31.7 m) long and 29 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesBlue Slide Road
CrossesPrice Creek
Location3.9 MI NW of U.S.101
RouteCounty Highway 0
Coordinates40.52906, -124.16316
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating58.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length104 ft (31.7 m)
Longest span100 ft (30.5 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic302 (2015)
Projected traffic254 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Blue Slide Road over Price Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is Blue Slide Road over Price Creek 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 August 2024.

How much traffic does Blue Slide Road over Price Creek carry?

About 302 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is Blue Slide Road over Price Creek?

The structure is 104 ft (31.7 m) long with a longest span of 100 ft (30.5 m) and a deck 29 ft wide.

Who owns Blue Slide Road over Price Creek?

It is owned by the County Highway Agency.