US Bridges

Redwood Way over Strongs Creek

Good

Humboldt County, California · 1/2 MI E Fortuna Bl · Structure no. 04C0242

Built
1988
37 years old
Condition
Good
inspected August 2022
Type
Tee Beam
Concrete
Length
63 ft
1 main span
Daily traffic
4,353
2014 count
Owner
City
City or Municipal Highway Agency

About this bridge

Redwood Way over Strongs Creek is a concrete tee beam carrying Redwood Way over Strongs Creek in Humboldt County, California. It was built in 1988, so it is 37 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 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 4,353 vehicles a day, roughly 2% of them trucks, projected to reach 3,239 by 2044. The structure is 63 ft (19.2 m) long and 52 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesRedwood Way
CrossesStrongs Creek
Location1/2 MI E Fortuna Bl
RouteCity Street 0
Coordinates40.58374, -124.13794
Functional classUrban Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating48.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length63 ft (19.2 m)
Longest span58 ft (17.7 m)
Deck width52 ft (16 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,353 (2014)
Projected traffic3,239 by 2044
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Redwood Way over Strongs Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Redwood Way over Strongs 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 2022.

How much traffic does Redwood Way over Strongs Creek carry?

About 4,353 vehicles per day (2014 count), of which roughly 2% are trucks.

How long is Redwood Way over Strongs Creek?

The structure is 63 ft (19.2 m) long with a longest span of 58 ft (17.7 m) and a deck 52 ft wide.

Who owns Redwood Way over Strongs Creek?

It is owned by the City or Municipal Highway Agency.