Pima and Cochise counties have put out a request for review for upgrading 63 miles of existing border wall

CBP seeks public input on border wall plans

U.S. Customs and Border Protection is seeking public comment on border wall proposals in Pima and Cochise Counties.

KGUN 9 Tucson News

The review documents are here

www.cbp.gov

This seems to be a different effort than some of the other construction e.g. military construction mostly around New Mexico or authorized funding in 2019 budget in the Rio Grande Valley, so will be useful to see what is authorizing this segment.