US Bridges

Santa Fe Grade over Los Banos Creek

Fair

Merced County, California · 1.2 MI N Gun Club Road · Structure no. 39C0358

Built
1974
51 years old
Condition
Fair
inspected February 2025
Type
Slab
Concrete Continuous
Length
34 ft
2 main spans
Daily traffic
186
2014 count
Owner
County
County Highway Agency

About this bridge

Santa Fe Grade over Los Banos Creek is a concrete continuous slab carrying Santa Fe Grade over Los Banos Creek in Merced County, California. It was built in 1974, so it is 51 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 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 186 vehicles a day, roughly 1% of them trucks, projected to reach 333 by 2047. The structure is 34 ft (10.5 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesSanta Fe Grade
CrossesLos Banos Creek
Location1.2 MI N Gun Club Road
RouteCounty Highway 0
CountyMerced County
StateCalifornia
Coordinates37.24533, -120.94338
Functional classRural Minor Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.3 US tons
Inventory rating41.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length34 ft (10.5 m)
Longest span16 ft (4.9 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic186 (2014)
Projected traffic333 by 2047
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Santa Fe Grade over Los Banos Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Santa Fe Grade over Los Banos 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 2025.

How much traffic does Santa Fe Grade over Los Banos Creek carry?

About 186 vehicles per day (2014 count), of which roughly 1% are trucks.

How long is Santa Fe Grade over Los Banos Creek?

The structure is 34 ft (10.5 m) long with a longest span of 16 ft (4.9 m) and a deck 25 ft wide.

Who owns Santa Fe Grade over Los Banos Creek?

It is owned by the County Highway Agency.