Sherman Island on the Sacramento-San Joaquin River Delta is under a local emergency a week after a levee was spotted with “significant” erosion damage.

Sacramento County officials declared a local state of emergency Monday after discovering a levee is starting to erode. The county says Sherman Island is closed due to a levee that's starting to erode.

No evacuation orders have been issued, but county officials are requesting help from state agencies to develop a plan if conditions worsen.

The threat of levee failure is low, and there is no current evacuation order, according to a news release from Sacramento County.

The Sacramento County Board of Supervisors said it has alerted the state to a “significant uncontrolled levee erosion” near Sherman Island. The board said it had issued a Proclamation of Emergency in response to the erosion,