(Private) The intent of this project was to repair and stabilize a failing seawall located adjacent to the Maalaea Harbor on the island of Maui. The seawall was showing signs of damage and undermining after enduring 50+ years of erosion … Continued
(Kamehameha Schools) Kamehameha Schools was having issues with the erosion and cracking of the court surface on the tennis courts of their Kapalama Campus. Prometheus was brought in in order to drill in soil nail anchors, install drainage weepholes, install … Continued
(Private Homeowner) The homeowner was dealing with a shifting foundation and needed stabilization to prevent damage to the house and ensure safety for its occupants. Prometheus’ team and geotechnical engineer assessed the situation and devised a plan to repair the problem … Continued
(Private Homeowner) There was a dangerous and fractured boulder outcropping overhanging a residential road in Hawaii Kai. Prometheus assessed and mitigated the situation on an emergency basis. Hazard identification to job completion took under 14 days. Work included emergency slope draping, … Continued
(Private Homeowner) A Honolulu homeowner was dealing with an unstable rockslide area behind their home. Prometheus assessed the situation and stabilized the hillside. Scope of work included installing rebar dowels, hot dip galvanized welded wire mesh, geo-composite drainage strips and … Continued
Reinforce and stabilize existing rock retaining wall which is slipping. Install ten 15′ deep fully grouted 2″ tie-back anchors connected to heavy-duty strong-back walers. Anchors torqued to 300 foot/lbs of pressure. Installed 10 weep holes at base of wall. Installed … Continued
Reinforce and stabilize failing CRM retaining wall. Prometheus installed 20′-30′ deep fully tie-back anchors connected to strutural reinforcement layer. Anchors locked off to 25-35,000 pounds of torque. Installed 12 weep holes into wall. Installed 12″ thick 4,000 psi fiber-reinforced shotcrete … Continued
Demolition of large threatening boulder on steep hillside above private residence. Boulder was lashed and anchored, along with a temporary impact fence installed below. The rock was then split and demolished into many small pieces and secured.
Stabilize existing driveway retaining wall which is being undercut and slipping. Clear soil and vegetation, install 28 – 15′ deep fully grouted tie-back anchors connected to heavy-duty strong-back walers. Anchors torqued to 300 foot/lbs of pressure. Installed drainboard and weep … Continued
(Private) Unstable hillside posing rockfall hazard above Pacific Heights Road. Cleared and scaled hillside of vegetation and loose rocks. Installed fiber-reinforced shotcrete (6″ min thickness) with soil nails, welded wire mesh, drainboard, and weepholes. Shotcrete was stained after installation. 1400 … Continued
Concrete foundation and anchored grade beam for construction of new home on steep hillside. Installed and pull-tested / tensioned 2 vertical rock anchors (45 kips), 2 micropiles (100 kips), and 4 inclined rock anchors (30 kips). Formed and poured reinforced … Continued
(Private) Extensive boulder demolition and removal on unstable hillside.