Stormwater – Drainage

Keltic Engineering Inc. has a wide range of experience with storm water management projects. We work diligently to provide solutions for difficult storm water problems as well as minor drainage issues by implementing best management practices. We understand the importance of providing our clients with practical alternatives to assist in the decision process and to achieve positive outcomes and solutions that work and are cost effective.

Keltic Engineering’s Storm Drainage projects include:

  • Storm Water Pollution Prevention Plans (SWPPP)
  • Department of Ecology (DOE) Construction General Permit & EPA
  • Temporary Erosion and Sediment Control (TESC) Plans
  • Methods of Control for Sediment from Receiving Waters
  • State Environmental Policy Act (SEPA) Checklist
  • Determination of Non-Significance / Significance
  • Notice of Intent (NOI)
  • Notice of Termination (NOT)
  • Storm Water Conveyance Systems
  • Storm Water Runoff Calculations
  • Storm Water Feasibility Studies
  • Storm Water Master Plans
  • Retention / Detention Ponds and Facilities
  • John Loop Road Design – Coeur d’Alene, ID
  • 23rd Street Reconstruction – Lewiston, ID
  • Nez Perce Plaza – Lewiston, ID
  • Tri-State Hospital Expansion – Clarkston, WA
  • Dr. Williams Site – Clarkston, WA
  • All Saints Church – Lewiston, ID
  • Nez Perce County Jail – Nez Perce County, ID
  • Blue Ribbon Linen – Lewiston, ID
  • Clarkston Care Center – Clarkston, WA
  • All Saints Catholic Church – Lewiston, ID
  • Southridge Development – Lewiston, ID
  • Canyon River Estates – Lewiston, ID