US Bridges

Robinson Creek RD over Robinson Creek

Fair

Mendocino County, California · 3.15 MI N SH 253 · Structure no. 10C0148

Built
1975
50 years old
Condition
Fair
inspected February 2022
Type
Culvert
Concrete Continuous
Length
42 ft
3 main spans
Daily traffic
168
2011 count
Owner
County
County Highway Agency

About this bridge

Robinson Creek RD over Robinson Creek is a concrete continuous culvert carrying Robinson Creek RD over Robinson Creek in Mendocino County, California. It was built in 1975, so it is 50 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 168 vehicles a day, roughly 5% of them trucks, projected to reach 226 by 2044. The structure is 42 ft (12.7 m) long and 22 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesRobinson Creek RD
CrossesRobinson Creek
Location3.15 MI N SH 253
RouteCounty Highway 0
CountyMendocino County
StateCalifornia
Coordinates39.09192, -123.26531
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
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

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length42 ft (12.7 m)
Longest span14 ft (4.2 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic168 (2011)
Projected traffic226 by 2044
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Robinson Creek RD over Robinson Creek built?

It was built in 1975, making it 50 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 February 2022.

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

About 168 vehicles per day (2011 count), of which roughly 5% are trucks.

How long is Robinson Creek RD over Robinson Creek?

The structure is 42 ft (12.7 m) long with a longest span of 14 ft (4.2 m) and a deck 22 ft wide.

Who owns Robinson Creek RD over Robinson Creek?

It is owned by the County Highway Agency.