UPDATE APRIL 30: Workers have finished sealing the abandoned mines near Fort Apache and Blue Diamond roads.
UPDATE APRIL 3: Crews have begun filling the mines near Blue Diamond and Fort Apache roads.
ORIGINAL STORY: Residents may see construction crews at a series of mines near Blue Diamond and Fort Apache roads starting on Monday.
State officials say that about 40 of the mines have become a public safety hazard and need to be filled in.
The first few days will involve construction crews grading to make the dirt roads passable. The fill-in work on the mines won't happen until later in the week.
Project coordinators say the fill-in project will not impact any trails in the area.