US Bridges

US Highway 101 SB over Scenic Way

Fair

Humboldt County, California · 01-HUM-101-R53.38-RDEL · Structure no. 04 0235L

Built
1976
49 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
126 ft
1 main span
Daily traffic
4,400
2009 count
Owner
State
State Highway Agency

About this bridge

US Highway 101 SB over Scenic Way is a prestressed concrete box beam or girders - multiple carrying US Highway 101 SB over Scenic Way in Humboldt County, California. It was built in 1976, so it is 49 years old, younger 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 4,400 vehicles a day, roughly 12% of them trucks, projected to reach 6,583 by 2045. The structure is 126 ft (38.5 m) long and 41 ft wide.

CarriesUS Highway 101 SB
CrossesScenic Way
Location01-HUM-101-R53.38-RDEL
RouteU.S. Route 101
Coordinates40.50551, -124.10928
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating51 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length126 ft (38.5 m)
Longest span125 ft (38.1 m)
Deck width41 ft (12.5 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,400 (2009)
Projected traffic6,583 by 2045
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US Highway 101 SB over Scenic Way built?

It was built in 1976, making it 49 years old in 2025.

What condition is US Highway 101 SB over Scenic Way 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 US Highway 101 SB over Scenic Way carry?

About 4,400 vehicles per day (2009 count), of which roughly 12% are trucks.

How long is US Highway 101 SB over Scenic Way?

The structure is 126 ft (38.5 m) long with a longest span of 125 ft (38.1 m) and a deck 41 ft wide.

Who owns US Highway 101 SB over Scenic Way?

It is owned by the State Highway Agency.