US Bridges

U.S. Highway 101 over Panther Creek

Good

Del Norte County, California · 01-DN-101-8.34 · Structure no. 01 0085

Built
2024
1 years old
Condition
Good
inspected September 2024
Type
Arch - Thru
Steel
Length
170 ft
1 main span
Daily traffic
4,900
2019 count
Owner
State
State Highway Agency

About this bridge

U.S. Highway 101 over Panther Creek is a steel arch - thru carrying U.S. Highway 101 over Panther Creek in Del Norte County, California. It was built in 2024, so it is 1 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,900 vehicles a day, roughly 14% of them trucks, projected to reach 6,500 by 2043. The structure is 170 ft (51.9 m) long and 56 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesU.S. Highway 101
CrossesPanther Creek
Location01-DN-101-8.34
RouteU.S. Route 101
Coordinates41.5562, -124.05682
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeArch - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length170 ft (51.9 m)
Longest span162 ft (49.5 m)
Deck width56 ft (17.1 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,900 (2019)
Projected traffic6,500 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was U.S. Highway 101 over Panther Creek built?

It was built in 2024, making it 1 years old in 2025.

What condition is U.S. Highway 101 over Panther 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 September 2024.

How much traffic does U.S. Highway 101 over Panther Creek carry?

About 4,900 vehicles per day (2019 count), of which roughly 14% are trucks.

How long is U.S. Highway 101 over Panther Creek?

The structure is 170 ft (51.9 m) long with a longest span of 162 ft (49.5 m) and a deck 56 ft wide.

Who owns U.S. Highway 101 over Panther Creek?

It is owned by the State Highway Agency.