Amends GS 153A-210.1, which provides that Article 9A authorizes counties to impose special assessments on benefited properties and use resulting revenues to meet the counties' critical infrastructure needs. Extends the sunset of Article 9A from July 1, 2019, to July 1, 2022, with respect to dam repair projects authorized in GS 153A-210.2(a1).

Amends GS 153A-210.2(a1), which authorizes a county to make special assessments against property that is contiguous to a lake and benefits from lake access in order for the county to repair the lake's dam. Current law limits the scope of this authority to a privately owned dam formerly used for textile mill purposes, forming a lake between 225 and 235 acres. Subject to majority approval in a referendum, expands the county's authority, authorizing a county to make special assessments for a privately owned dam formerly used for recreational and flood control purposes, forming a lake between 1,100 and 1,300 acres. Provides parameters for the referendum, including the ballot question. Requires the county board of commissioners to make the approved special assessment by resolution after 10 days' public notice.