They happened at about 1:45 a.m. Tuesday at Highway 99 and Madera Avenue.
Officers were responding to the scene of one collision when the second collision occurred.
Two vehicles and a large drilling rig were involved.
Officers say there were serious injuries.
Lanes were blocked for about two hours while officers cleared the scene.
The area is now open to traffic.
We are still waiting to learn more about the conditions of those injured in these crashes.
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Major injuries in crashes on Highway 99 in Madera, CHP says Source link Major injuries in crashes on Highway 99 in Madera, CHP says