US Bridges

Robinson Canyon RD over Potrero Creek

Good

Monterey County, California · 0.5 MI S of G16 · Structure no. 44C0057

Built
1971
54 years old
Condition
Good
inspected June 2022
Type
Slab
Concrete
Length
38 ft
1 main span
Daily traffic
3,600
2017 count
Owner
County
County Highway Agency

About this bridge

Robinson Canyon RD over Potrero Creek is a concrete slab carrying Robinson Canyon RD over Potrero Creek in Monterey County, California. It was built in 1971, so it is 54 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,600 vehicles a day, roughly 1% of them trucks, projected to reach 5,397 by 2039. The structure is 38 ft (11.5 m) long and 17 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesRobinson Canyon RD
CrossesPotrero Creek
Location0.5 MI S of G16
RouteCounty Highway 0
Coordinates36.51787, -121.81188
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating70 US tons
Inventory rating42.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length38 ft (11.5 m)
Longest span36 ft (11 m)
Deck width17 ft (5.1 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,600 (2017)
Projected traffic5,397 by 2039
Trucks1%
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 Robinson Canyon RD over Potrero Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is Robinson Canyon RD over Potrero Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2022.

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

About 3,600 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is Robinson Canyon RD over Potrero Creek?

The structure is 38 ft (11.5 m) long with a longest span of 36 ft (11 m) and a deck 17 ft wide.

Who owns Robinson Canyon RD over Potrero Creek?

It is owned by the County Highway Agency.