KOLIBRIEN provides civil engineering and planning services with an emphasis in schools, medical office, residential & commercial developments, restaurants, auto dealership, gas stations, storage facilities, military and municipal facilities, industrial/business facilities, cannabis facilities, wineries... and many more.  We specialize in site design, grading, street improvements, utilities, drainage, water treatment, pump stations and reservoirs... and much more.

From single family custom plans to full scale commercial shopping centers or municipal facilities, we are at your service to deliver superior work product quickly, efficiently and cost effectively!

SOME OF OUR SERVICES...

• SITE PLANS, PLOT PLANS, CONCEPTUAL PLANS
• GRADING PLANS, CONCEPTUAL, ROUGH, PRECISE, FINAL
• GRADING REMEDIATION
• ILLEGAL GRADING MITIGATION AND PROCESSING
• GRADING AND ELEVATION CERTIFICATIONS
• STREET IMPROVEMENT PLANS
• STREET AND HIGHWAY ENGINEERING
• DEMOLITION PLANS
• UTILITY PLANS
• STORM DRAIN PLANS
• MECHANICAL PIPING PLANS
• WATER AND SEWER PLANS
• HYDROLOGY AND HYDRAULIC STUDIES
• DETENTION BASIN PLANS AND ROUTING CALCULATIONS
• HYDRAULICS ENGINEERING
• TRAFFIC AND SIGNAGE PLANS
• TRAFFIC CONTROL PLANS
• TRAFFIC SIGNAL PLANS
• DRAINAGE PLANS AND CALCULATIONS
• FEMA HYDRAULIC STUDIES
• HEC-RAS HYDRAULIC STUDIES
• WATER QUALITY MANAGEMENT PLANS (WQMP)
• WATER QUALITY TECHNICAL REPORT (WQTR)
• STORMWATER STANDARD URBAN STORM WATER MITIGATION PLAN (SUSMP)
• STORM WATER MITIGATION PLAN (CSWMitP)
• WATER POLLUTION CONTROL PLANS (WPCP)
• STORM WATER POLLUTION PREVENTION PLANS (SWPPP)
• NPEDS COMPLIANCE
• EARTHWORK CALCULATIONS AND ESTIMATES
• PUMP STATION AND RESERVOIR PLANS
• FEASIBILITY STUDIES
• PLANNING STUDIES AND MAPPING
• PLAN OF SERVICE SUBMITTAL PACKAGES
• WATER HYDRAULICS AND FEASIBILITY STUDIES
• SEWER HYDRAULICS AND FEASIBILITY STUDIES
• ZONING, SPECIFIC PLANS AND GENERAL PLANS
• CONDITIONAL USE, PUPLIC USE AND OTHER LAND USE PLANS, PERMITS AND SUBMITTAL PACKAGES
• PERMIT PREPARATION AND PLAN PROCESSING
• ONSITE WASTEWATER TREATMENT SYSTEMS, LEACH, SEPTIC, PERCOLATION TESTS, SEEPAGE PITS
• INFILTRATION TESTING AND REPORTS
• SOILS AND GEOTECHNICAL INVESTIGATIONS
• LIQUEFACTION AND FAULT STUDIES
• RIPABILITY STUDIES
• SOILS REPORTS
• COMPACTION TESTING AND LABORATORY ANALYSIS
• ENVIRONMENTAL IMPACT REPORTS
• INITIAL STUDIES
• TRAFFIC IMPACT ANALYSIS
• QSD QUALIFIED STORMWATER DEVELOPER
• LANDSCAPE LAYOUT, EROSION CONTROL, AND DRAINAGE 
• ADA SURVEYS, COMPLIANCE INSPECTIONS AND REMEDIATION

... AND MORE.



FROM VISION...

TO REALITY...

Serving your Civil Engineering needs throughout Southern California, Colorado and Hawaii with a special emphasis in Orange, San Diego, San Bernardino, Riverside County and more.