US Bridges

Johnson RD over Carneros Creek

Fair

Monterey County, California · 0.1 MI S Hall RD · Structure no. 44C0138

Built
1950
75 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
59 ft
3 main spans
Daily traffic
2,200
2017 count
Owner
County
County Highway Agency

About this bridge

Johnson RD over Carneros Creek is a steel continuous stringer/multi-beam or girder carrying Johnson RD over Carneros Creek in Monterey County, California. It was built in 1950, so it is 75 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 2,200 vehicles a day, roughly 1% of them trucks, projected to reach 3,864 by 2040. The structure is 59 ft (18 m) long and 19 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesJohnson RD
CrossesCarneros Creek
Location0.1 MI S Hall RD
RouteCounty Highway 0
CountyMonterey County
StateCalifornia
Coordinates36.8598, -121.70762
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.4 US tons
Inventory rating21.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckClosed grating
Main spans3
Design loadUnknown
Structure length59 ft (18 m)
Longest span20 ft (6.1 m)
Deck width19 ft (5.7 m)
Roadway width19 ft (5.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,200 (2017)
Projected traffic3,864 by 2040
Trucks1%
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 Johnson RD over Carneros Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is Johnson RD over Carneros 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 2023.

How much traffic does Johnson RD over Carneros Creek carry?

About 2,200 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is Johnson RD over Carneros Creek?

The structure is 59 ft (18 m) long with a longest span of 20 ft (6.1 m) and a deck 19 ft wide.

Who owns Johnson RD over Carneros Creek?

It is owned by the County Highway Agency.