US Bridges

Sandy Mush Road over Deadman Creek

Fair

Merced County, California · 1.8 MI E Dan Mc Namara RD · Structure no. 39C0170

Built
1965
60 years old
Condition
Fair
inspected November 2024
Type
Tee Beam
Concrete Continuous
Length
479 ft
14 main spans
Daily traffic
500
1990 count
Owner
County
County Highway Agency

About this bridge

Sandy Mush Road over Deadman Creek is a concrete continuous tee beam carrying Sandy Mush Road over Deadman Creek in Merced County, California. It was built in 1965, so it is 60 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 6 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 500 vehicles a day, roughly 5% of them trucks, projected to reach 1,167 by 2042. The structure is 479 ft (146.1 m) long and 30 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

Location

Open in Google Maps
CarriesSandy Mush Road
CrossesDeadman Creek
Location1.8 MI E Dan Mc Namara RD
RouteCounty Highway 0
CountyMerced County
StateCalifornia
Coordinates37.18612, -120.66035
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans14
Design loadUnknown
Structure length479 ft (146.1 m)
Longest span35 ft (10.7 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (1990)
Projected traffic1,167 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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 Sandy Mush Road over Deadman Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Sandy Mush Road over Deadman 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 November 2024.

How much traffic does Sandy Mush Road over Deadman Creek carry?

About 500 vehicles per day (1990 count), of which roughly 5% are trucks.

How long is Sandy Mush Road over Deadman Creek?

The structure is 479 ft (146.1 m) long with a longest span of 35 ft (10.7 m) and a deck 30 ft wide.

Who owns Sandy Mush Road over Deadman Creek?

It is owned by the County Highway Agency.