The Covington County commission voted to pay nearly $300,000 for a 50 bed, pre-fabricated addition to the county jail.
The fiberglass dome buildings are similar to what's being built behind the Geneva County courthouse.
The Covington County jail population has approached 200 inmates, nearly 50 percent over its 140 inmate design capacity.
The jail will be used for work-release inmates.
Sheriff Anthony Clark says it’s important to keep these prisoners separated from the main jail population.
Two escapes from the Andalusia jail have been linked to murders in Covington County and Texas.