Water Resources

• Hydrologic modeling and engineering
• Hydraulic engineering
• Storm drain design
• Floodplain assessment and mitigation
• Water quality assessment and modeling
• Detention and water quality pond design
• Wetland mitigation site design and evaluation

Project Examples

• Lambert Creek Water Quality Improvement, Vadnais Heights, MN
• Water Resource Design, Detroit Lakes, MN

Lambert Creek Water Quality Improvement, Vadnais Heights, MN

Client Needs

Lambert Lake is part of a series of wetlands along Lambert Creek (old County Ditch 14) that flows southwest from Goose Lake in White Bear and ends in Vadnais Lake. The intent of this project was to restore wetland function, provide greater flood protection and improve water quality.

Rani Engineering Solution

• Modified the access road alignment
• Revised previously submitted watershed modeling to reflect the new location for the pond and ditch
• Designed sheet pile design based on soil recommendation
• Prepared easement and construction limits
• Construction management

Water Resource Design, Detroit Lakes, MN

Client Needs

The reconstruction of TH 10 required an evaluation of existing drainage condition and preliminary drainage design of water resources features for the proposed expanded roadway through the heart of downtown Detroit Lakes.  The preliminary drainage plan required permission and approval from city, state and local units of government.

Rani Engineering Solution

• Reviewed existing drainage system plan
• Prepared a proposed drainage system plan
• Calculated removal efficiencies of median areas using P8 Urban Catchment Model software
• Determined permit requirements based on local, state and federal agency requirements
• Discussed mitigation proposals for potential pond sites
• Assessed rate control for detention ponds
• Documented design standards for final design
• Established pre-negotiated permit conditions
• Outlined ponding and permit requirements for construction
• Prepared preliminary water resources report