The Department of Land and Natural Resources will reopen the summit trail at Diamond Head State Monument today after a month of doing maintenance on the slopes and dealing with potential rockfall hazards along the trail.

The maintenance is the first phase of the state's planned upgrades to the historic summit trail.

Subsequent phases will include the Diamond Head Trail Improvements Project, now in the design stage, which will improve sections of the trail that have deteriorated from use, age and weathering. The project will address the narrow corridors and other trail sections that have deteriorated; install safer stairways and wider walkways; install slope stabilization and rockfall mitigation measures; and construct a loop trail connecting the Summit Lookout and the rest-stop landing at the top of the pedestrian tunnel.

Future phases of the rockfall mitigation and slope stabilization project will include work along Diamond Head Road and Poka Place.