US Bridges

Dobie RD over Turner Creek

Fair

Mendocino County, California · 0.20 MI S CR 327-A · Structure no. 10C0176

Built
1979
46 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete Continuous
Length
82 ft
3 main spans
Daily traffic
210
2011 count
Owner
County
County Highway Agency

About this bridge

Dobie RD over Turner Creek is a concrete continuous slab carrying Dobie RD over Turner Creek in Mendocino County, California. It was built in 1979, so it is 46 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 6 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 210 vehicles a day, roughly 5% of them trucks, projected to reach 312 by 2044. The structure is 82 ft (25.1 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesDobie RD
CrossesTurner Creek
Location0.20 MI S CR 327-A
RouteCounty Highway 0
Coordinates39.75435, -123.21076
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.8 US tons
Inventory rating58.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length82 ft (25.1 m)
Longest span32 ft (9.8 m)
Deck width33 ft (10 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2011)
Projected traffic312 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Dobie RD over Turner Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Dobie RD over Turner 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 2024.

How much traffic does Dobie RD over Turner Creek carry?

About 210 vehicles per day (2011 count), of which roughly 5% are trucks.

How long is Dobie RD over Turner Creek?

The structure is 82 ft (25.1 m) long with a longest span of 32 ft (9.8 m) and a deck 33 ft wide.

Who owns Dobie RD over Turner Creek?

It is owned by the County Highway Agency.