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MANY YEARS AGO, WAY BACK IN 1970, MY DAD AND I WERE DRIVING TO LIVERMORE TO VISIT HIS OLDER BROTHER. HE TOOK HIS MOM ALONG FOR THE RIDE TOO. WELL ON 580 FREEWAY IN CASTRO VALLEY MY DAD SEEN THE CEMENT TRUCK WITH THE WHEELS ON TOP AND HE SAID OUTLOUD SO HIS MOM COULD HEAR AND HE SAID: ''LOOK, IT'S HAVING A BABY''. MY GRANDMA HAD A BIG TIZZY FIT. MY DAD AND I WERE CRACKING UP. SHE DID NOT SEE THE HUMOR IN MY DAD'S HEART.

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Dan Nethercott

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10mo ago
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11y ago

The part the wheels are on lowers when they load the truck. The wheels are there so they don't drag it on the ground if they have to move the truck.

Those wheels are actually held down by hydraulic rams when the truck is heavy. The purpose is to bear the extra weight of the concrete, so there is less weight on each wheel. This enables the truck to move on softer ground and many bridges that have an axle weight limit.

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Q: Why do concrete trucks have wheels on top?
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