US Bridges

County RD 68 over N Fk Logan Creek

Fair

Glenn County, California · 2.7 MI E of I-5 · Structure no. 11C0201

Built
1977
48 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete Continuous
Length
63 ft
2 main spans
Daily traffic
225
2015 count
Owner
County
County Highway Agency

About this bridge

County RD 68 over N Fk Logan Creek is a concrete continuous slab carrying County RD 68 over N Fk Logan Creek in Glenn County, California. It was built in 1977, so it is 48 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 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 225 vehicles a day, roughly 20% of them trucks, projected to reach 330 by 2040. The structure is 63 ft (19.2 m) long and 33 ft wide. If it were closed, the detour would be 26.1 mi (42 km).

Location

Open in Google Maps
CarriesCounty RD 68
CrossesN Fk Logan Creek
Location2.7 MI E of I-5
RouteCounty Highway 0
CountyGlenn County
StateCalifornia
Coordinates39.40737, -122.14452
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
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 geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating79.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length63 ft (19.2 m)
Longest span30 ft (9.1 m)
Deck width33 ft (10 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic225 (2015)
Projected traffic330 by 2040
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.1 mi (42 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 County RD 68 over N Fk Logan Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is County RD 68 over N Fk Logan Creek 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 August 2023.

How much traffic does County RD 68 over N Fk Logan Creek carry?

About 225 vehicles per day (2015 count), of which roughly 20% are trucks.

How long is County RD 68 over N Fk Logan Creek?

The structure is 63 ft (19.2 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.

Who owns County RD 68 over N Fk Logan Creek?

It is owned by the County Highway Agency.