Crane Exam Study for Hanford and the Rest of Kings County

Two rulebooks within a few miles

Off base, Kings County is Cal/OSHA territory. There, an operator running a mobile or tower crane needs to hold an accredited certification for that specific crane type, and California never created a separate state license. Cranes above three tons also need annual certification by a state-licensed certifier, a requirement that surprises crews coming from other states. Our requirements guide explains how this works.

On Naval Air Station Lemoore, private contractors fall under federal OSHA instead. The federal Subpart CC rules also require certified operators and qualified signal persons, so the training translates, but inspections, reporting and some details differ. Confirm with the prime contractor before you mobilize.

Rail viaducts across farmland

High-speed rail construction in Kings County includes a viaduct carrying the line over Highway 198 and a string of road overcrossings where county roads climb over the future tracks. Girder sets, precast deck pieces and falsework on these structures were lifted beside farm roads and active fields. That work put a premium on Rigger Level I skills and on operators comfortable with long reaches over obstructions.

Cheese, milk and the plants that make them

Kings County's dairy herds feed large cheese and dairy processing plants in the Lemoore and Hanford area, including Leprino Foods' big Lemoore West mozzarella plant (the company announced that its century-old Lemoore East plant would close in early 2026). Plant work means silos, evaporators, dryers and refrigeration equipment, often lifted onto roofs or through openings with very little margin. Indoors, overhead cranes and hoists carry the load; outdoors, it is hydraulic truck cranes and boom trucks.

Small city, long drives

Hanford crews often travel. A week might start at a dairy near Lemoore, move to a plant in Corcoran and end on a county road project east of town. Long drives on two-lane roads mean less time at home, and less time to sit in a classroom. That is the practical reason many Kings County workers prefer studying online: an hour in the evening, a few practice questions at lunch, and steady progress without giving up a work day to travel to a training site.

When Tulare Lake came back

In 2023 heavy snowmelt refilled much of the old Tulare Lake basin south of Hanford, flooding farmland around Corcoran for months. Levee repairs, pump installations and road rebuilding followed. It was a reminder that the valley floor here is old lakebed: flat, often clay-rich, and capable of turning soft after a wet season. Check ground conditions before every setup.

• Use crane mats on clay soils after rain or irrigation.
• Expect tule fog on winter mornings and plan radio signals.
• Watch heat stress during summer picks above 100 degrees.