US Bridges

Robinson Creek RD over Robinson Creek

Fair

Mendocino County, California · 3.00 Miles West of SR 253 · Structure no. 10C0223

Built
2004
21 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
164 ft
1 main span
Daily traffic
40
1998 count
Owner
County
County Highway Agency

About this bridge

Robinson Creek RD over Robinson Creek is a prestressed concrete box beam or girders - multiple carrying Robinson Creek RD over Robinson Creek in Mendocino County, California. It was built in 2004, so it is 21 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 40 vehicles a day, roughly 5% of them trucks, projected to reach 219 by 2042. The structure is 164 ft (50 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesRobinson Creek RD
CrossesRobinson Creek
Location3.00 Miles West of SR 253
RouteCounty Highway 0
Coordinates39.09476, -123.23326
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length164 ft (50 m)
Longest span160 ft (48.8 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (1998)
Projected traffic219 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Robinson Creek RD over Robinson Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is Robinson Creek RD over Robinson 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 May 2023.

How much traffic does Robinson Creek RD over Robinson Creek carry?

About 40 vehicles per day (1998 count), of which roughly 5% are trucks.

How long is Robinson Creek RD over Robinson Creek?

The structure is 164 ft (50 m) long with a longest span of 160 ft (48.8 m) and a deck 25 ft wide.

Who owns Robinson Creek RD over Robinson Creek?

It is owned by the County Highway Agency.