The Pima County Board of Supervisors unanimously agreed Tuesday to spend about $280,000 to build a temporary addition on the Pima Animal Care Center.

Such addition will essentially include a tent on a concrete slab, with running water and electricity.

County officials said the expansion will add 50 percent capacity, which will reduce the crowding causing four or five dogs to be housed per kennel now.

Care center employees and volunteers said that too many dogs in a small space is unsanitary and leads to fights and injuries.

The board also agreed to spend about $120,000 to hire more staff at the Pima Animal Care facility starting Jan. 1.

The county has been trying to reduce the number of animals it euthanizes each year, and has been successful, but that's led to the overcrowding at the shelter.