The Sacramento Bee reports state and federal wildlife officials have announced a plan to move hatchery-raised salmon by tanker trucks should the river and its tributaries prove inhospitable for the fish.
Officials fear the rivers could become too shallow and warm to sustain salmon trying to migrate on their own.
They're keeping an eye on conditions and will be ready to implement the plan next month, barring heavy rains.
Salmon from the Coleman National Fish Hatchery on Battle Creek, a tributary of the Sacramento River, are usually released in April and May.
The trucking plan is similar to one carried out in the drought of 1991-92.
California has received less than 60 percent of the rain and snow this water year that it normally gets. Water managers are warning the new water year may be just as bad.
New motors, screens, and some casing repairs are in the works for eight of Sacramento's water wells. Some of the wells are more than 400-feet deep.
A long-range U.S. government forecast shows the drought in California will stick around.
The drought has farmers cutting back on watering, but some San Joaquin County growers say less water can mean a better crop.
The City of Sacramento Department of Utilities reports Friday that city water customers saved more than one-billion gallons of water last month.