US Bridges

Robley RD over Calera Creek

Fair

Monterey County, California · Just W Corral De Tierra · Structure no. 44C0097

Built
1961
64 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete
Length
36 ft
1 main span
Daily traffic
1,100
2017 count
Owner
County
County Highway Agency

About this bridge

Robley RD over Calera Creek is a concrete tee beam carrying Robley RD over Calera Creek in Monterey County, California. It was built in 1961, so it is 64 years old, older 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 1,100 vehicles a day, roughly 2% of them trucks, projected to reach 2,457 by 2046. The structure is 36 ft (11 m) long and 30 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesRobley RD
CrossesCalera Creek
LocationJust W Corral De Tierra
RouteCounty Highway 0
CountyMonterey County
StateCalifornia
Coordinates36.54988, -121.73292
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40.7 US tons
Inventory rating31.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length36 ft (11 m)
Longest span33 ft (10.1 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2017)
Projected traffic2,457 by 2046
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Robley RD over Calera Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is Robley RD over Calera 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 June 2024.

How much traffic does Robley RD over Calera Creek carry?

About 1,100 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Robley RD over Calera Creek?

The structure is 36 ft (11 m) long with a longest span of 33 ft (10.1 m) and a deck 30 ft wide.

Who owns Robley RD over Calera Creek?

It is owned by the County Highway Agency.