US Bridges

Briceland Road over Redwood Creek (redway)

Fair

Humboldt County, California · Whittemore State Park · Structure no. 04P0001

Built
1938
87 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Concrete Continuous
Length
101 ft
3 main spans
Daily traffic
260
1996 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

Briceland Road over Redwood Creek (redway) is a concrete continuous tee beam carrying Briceland Road over Redwood Creek (redway) in Humboldt County, California. It was built in 1938, so it is 87 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 5 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 260 vehicles a day, roughly 10% of them trucks, projected to reach 510 by 2045. The structure is 101 ft (30.8 m) long and 23 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesBriceland Road
CrossesRedwood Creek (redway)
LocationWhittemore State Park
RouteState Lands Road 0
Coordinates40.12221, -123.84136
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating32.2 US tons
Inventory rating22.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length101 ft (30.8 m)
Longest span60 ft (18.3 m)
Deck width23 ft (7.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic260 (1996)
Projected traffic510 by 2045
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation 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 Briceland Road over Redwood Creek (redway) built?

It was built in 1938, making it 87 years old in 2025.

What condition is Briceland Road over Redwood Creek (redway) 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 July 2023.

How much traffic does Briceland Road over Redwood Creek (redway) carry?

About 260 vehicles per day (1996 count), of which roughly 10% are trucks.

How long is Briceland Road over Redwood Creek (redway)?

The structure is 101 ft (30.8 m) long with a longest span of 60 ft (18.3 m) and a deck 23 ft wide.

Who owns Briceland Road over Redwood Creek (redway)?

It is owned by the State Park, Forest, or Reservation Agency.