BOX ELDER, S.D.(KELO)- It’s already huge…and it’s about to multiply.

Legislators are making the Ellsworth Air Force base expansion for the B21 Raider a matter of serious study this summer.

State Senate Majority Leader Casey Crabtree says what happens at Ellsworth will send ripples across the state.

Four-thousand new residents are expected in the Ellsworth area next year.

By the year 2030 that will expand to more than 12-thousand new residents.