US Bridges

U.S. Highway 101 over Elk Creek

Good

Del Norte County, California · 01-DN-101-26.15-CRC · Structure no. 01 0021

Built
1944
81 years old, rebuilt 1987
Condition
Good
inspected August 2021
Type
Slab
Concrete
Length
90 ft
1 main span
Daily traffic
21,500
2009 count
Owner
State
State Highway Agency

About this bridge

U.S. Highway 101 over Elk Creek is a concrete slab carrying U.S. Highway 101 over Elk Creek in Del Norte County, California. It was built in 1944 and reconstructed in 1987, so it is 81 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 21,500 vehicles a day, projected to reach 12,221 by 2041. The structure is 90 ft (27.4 m) long and 208 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesU.S. Highway 101
CrossesElk Creek
Location01-DN-101-26.15-CRC
RouteU.S. Route 101
Coordinates41.75267, -124.19171
Functional classUrban Other Principal Arterial

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 inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length90 ft (27.4 m)
Longest span75 ft (22.9 m)
Deck width208 ft (63.4 m)
Roadway width129 ft (39.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,500 (2009)
Projected traffic12,221 by 2041
Trucks0%
Lanes on structure5
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—
NavigationNo navigation control on waterway

Frequently asked questions

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

It was built in 1944, making it 81 years old in 2025. It was reconstructed in 1987.

What condition is U.S. Highway 101 over Elk 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 August 2021.

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

About 21,500 vehicles per day (2009 count).

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

The structure is 90 ft (27.4 m) long with a longest span of 75 ft (22.9 m) and a deck 208 ft wide.

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

It is owned by the State Highway Agency.