US Bridges

Mccann Road over Eel River

Fair

Humboldt County, California · E Dyerville Loop RD · Structure no. 04C0172

Built
1965
60 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete Continuous
Length
302 ft
15 main spans
Daily traffic
100
2010 count
Owner
County
County Highway Agency

About this bridge

Mccann Road over Eel River is a concrete continuous slab carrying Mccann Road over Eel River in Humboldt County, California. It was built in 1965, so it is 60 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 100 vehicles a day, projected to reach 113 by 2046. The structure is 302 ft (92 m) long and 12 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesMccann Road
CrossesEel River
LocationE Dyerville Loop RD
RouteCounty Highway 0
CountyHumboldt County
StateCalifornia
Coordinates40.32596, -123.83906
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans15
Design loadUnknown
Structure length302 ft (92 m)
Longest span20 ft (6 m)
Deck width12 ft (3.6 m)
Roadway width10 ft (3.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2010)
Projected traffic113 by 2046
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Mccann Road over Eel River built?

It was built in 1965, making it 60 years old in 2025.

What condition is Mccann Road over Eel River 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 February 2024.

How much traffic does Mccann Road over Eel River carry?

About 100 vehicles per day (2010 count).

How long is Mccann Road over Eel River?

The structure is 302 ft (92 m) long with a longest span of 20 ft (6 m) and a deck 12 ft wide.

Who owns Mccann Road over Eel River?

It is owned by the County Highway Agency.