Construction

• New Construction
• Demolition
  With over two decades of experience our highly trained rock scalers have the honed abilities to tackle your unstable rock and boulder issues–big or small.  By safely and skillfully removing these precarious hazards you’ll get the needed peace of mind for a good night’s sleep! We pride ourselves on the careful quality of our work and are highly trained in the use of the demolition tools and techniques needed to get the job done safely and efficiently.  Prometheus often works closely with geologists and geotechnical engineers performing risk analysis and acquiring building permits for hillside properties. Give us a call today for a free slope assessment and cost proposal.
• Foundation Installation

Landscaping and Fencing

• Landscaping
  (C&C Honolulu) The intent of this project was to repair a failed wall inside of a drainage channel in Enchanted Lakes in Kailua.  Scope of work included ditch clearing, earth retention, temporary and permanent shoring, anchor drilling, wall forming, concrete pouring, chainlink fence installation, and landscaping. Prometheus was contracted on an immediate and emergency basis in order to clear and shore the failed wall so that the foundation of nearby homes would not be in danger of failure along with the erosion. After clearing and shoring was complete, the earth on the west wall was retained using erosion control matting and then formwork of the wall began.  Concrete was poured and when the wall was cured the earth behind the wall was backfilled and another layer of erosion control matting was applied to the final surface. A chainlink fence was applied to the top of the wall. The job was completed on schedule.
• Fencing
  (State of Hawaii DOT) The intent of this project was to clear and repair damage from an overnight rockslide that occurred on the top of the Pali Highway, the major thoroughfare between Honolulu and Kailua on the island of Oahu. Prometheus crews worked 12 hour days 7 days per week until the freeway was safe to reopen, then continued to work during overnight freeway closures to complete the work. Scope of work included clearing the roadway of approximately 4,000 tons of rockfall debris material, demolition of destroyed portion of the Old Pali, shotcreteing, clearing, micropiling and pouring new rockfall fence foundations, erecting multiple rockfall fences, installing a 220′ tall 110′ wide attenuator rockfall fence, erosion control matting installation, horizontal slope drain installation, anchored wire mesh installation with over 200 20′ deep anchors installed in the system, drapery wire mesh installation, T35 roadside rockfall catchment fence installation, and chainlink fence installation. Prometheus was contracted on an immediate and emergency basis in order to clear the rockslide and reopen the freeway.
• Excavation
  (ARMY)  The intent of this project was to mitigate the hazard of wall collapse through the use of wet mix shotcrete shoring.  The excavation pit needed to be an overall depth of 15′, with the digging and shotcreteing taking place … Continued
• Retaining Walls
  At Prometheus Construction we pride ourselves in the long-term strength and stability of our retaining walls and structures. No matter what kind of retaining structure is appropriate for your site we can build it to last and be aesthetically pleasing to the eye. To ensure lasting integrity, behind all of our retaining walls we install top-of-the-line subsurface drainage systems to prevent hydrostatic ground water pressure. Whether it is a Pour-In-Place, Soldier Pile, GRP (grouted rubble paving), Keystone Block, Natural Rock, or MSE (mechanically stabilized earth) Gravity Wall we have the engineering skills, man-power and equipment to construct your retaining wall to last for scores of decades of service life.
• Irrigation Systems
  Prometheus Construction is rooted in the erosion control industry and has over 25 years of strong experience in erosion control. We specialize in erosion solutions and have the ability to do up to thousands of acres of revegetation. We offer our hydroseeding services for simple projects such as dust control with or without seed to sensitive revegetation of eroding hillsides. We offer many types of erosion matting including the latest technology in anchored fiber matting to service the most difficult eroding hillside. With many of our projects we also do large amounts of landscaping and planting of various trees and grasses (such as vetiver) along with the accompanying temporary irrigation systems.