US Bridges

Santa Fe Grade over Spillway Ditch

Fair

Merced County, California · 3.4 MI N/W of SR 165 · Structure no. 39C0343

Built
1977
48 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete Continuous
Length
55 ft
2 main spans
Daily traffic
200
2000 count
Owner
County
County Highway Agency

About this bridge

Santa Fe Grade over Spillway Ditch is a concrete continuous slab carrying Santa Fe Grade over Spillway Ditch in Merced County, California. It was built in 1977, so it is 48 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 200 vehicles a day, roughly 3% of them trucks, projected to reach 429 by 2042. The structure is 55 ft (16.8 m) long and 29 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Location

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CarriesSanta Fe Grade
CrossesSpillway Ditch
Location3.4 MI N/W of SR 165
RouteCounty Highway 0
CountyMerced County
StateCalifornia
Coordinates37.14342, -120.87304
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.5 US tons
Inventory rating64.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span26 ft (7.9 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2000)
Projected traffic429 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 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 Spillway Ditch built?

It was built in 1977, making it 48 years old in 2025.

What condition is Santa Fe Grade over Spillway Ditch 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 November 2024.

How much traffic does Santa Fe Grade over Spillway Ditch carry?

About 200 vehicles per day (2000 count), of which roughly 3% are trucks.

How long is Santa Fe Grade over Spillway Ditch?

The structure is 55 ft (16.8 m) long with a longest span of 26 ft (7.9 m) and a deck 29 ft wide.

Who owns Santa Fe Grade over Spillway Ditch?

It is owned by the County Highway Agency.