RJN Group, Inc. has conducted comprehensive stormwater management and drainage analyses for state, county, and local municipalities and residential, commercial, and industrial developments. Projects have included open drainage ditches, culverts, retention ponds, bridges, and storm sewers. Our personnel have experience in field surveys, preliminary and final designs, preparation of plans and specifications, and construction engineering services. We use state-of-the-art modeling software to assist in stormwater analysis.

Stormwater Management Engineering Services  More >>

Hydraulic Modeling  More >>

Master Planning  More >>

General Civil Engineering Services  More >>

Infrastructure Management  More >>

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• Watershed studies
• Stormwater drainage studies
• Hydraulic reports for structures
• FEMA applications and map revisions
• Combined system studies

• Bridge modeling
• Culvert modeling
• Storm drainage systems
• HEC-1, HEC-2, SCS-TR55, ILLUDAS, WSP2, WSPRO, SWMM, XP SWMM, MIKE SWMM, and HY-8
• Linking to GIS
• Master plans

• Mapping
• Linking to GIS

• Stormwater drainage computer modeling
• Stormwater management/flood control
• NPDES permit applications and programs
• Storm sewer design and rehabilitation
• Downtown redevelopment
• Topographic, boundary, and utility surveys
• Site development and planning

• CASS WORKS® Maintenance Management Software
• Forecasting, planning, and scheduling
• GIS integration
• Mobile work order processing
• Mobile physical inspections