US Bridges

Nason Road over Cachagua Creek

Fair

Monterey County, California · 0.1 MI S Cachagua Road · Structure no. 44C0123

Built
1945
80 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
63 ft
3 main spans
Daily traffic
200
2013 count
Owner
County
County Highway Agency

About this bridge

Nason Road over Cachagua Creek is a steel stringer/multi-beam or girder carrying Nason Road over Cachagua Creek in Monterey County, California. It was built in 1945, so it is 80 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 200 vehicles a day, roughly 3% of them trucks, projected to reach 400 by 2041. The structure is 63 ft (19.2 m) long and 17 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNason Road
CrossesCachagua Creek
Location0.1 MI S Cachagua Road
RouteCounty Highway 0
CountyMonterey County
StateCalifornia
Coordinates36.40024, -121.65836
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 protection9 ExcellentNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.6 US tons
Inventory rating20.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckSteel plate
Main spans3
Design loadUnknown
Structure length63 ft (19.2 m)
Longest span21 ft (6.4 m)
Deck width17 ft (5.2 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2013)
Projected traffic400 by 2041
Trucks3%
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 Nason Road over Cachagua Creek built?

It was built in 1945, making it 80 years old in 2025.

What condition is Nason Road over Cachagua 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 April 2024.

How much traffic does Nason Road over Cachagua Creek carry?

About 200 vehicles per day (2013 count), of which roughly 3% are trucks.

How long is Nason Road over Cachagua Creek?

The structure is 63 ft (19.2 m) long with a longest span of 21 ft (6.4 m) and a deck 17 ft wide.

Who owns Nason Road over Cachagua Creek?

It is owned by the County Highway Agency.