Welcome to CivilDesign Corporation .

PLEASE NOTE: To obtain your authorization codes, please download our Request Form.

Attention Existing Riverside County Unit Hydrograph Method (UNRIV) Users: The County of Riverside has revised its Hydrology Manual, and CivilDesign has updated the UNRIV program to address this revision.  This update is available to existing customers at reduced cost. Please click here for more information (PDF).

Please Note: If you are an existing customer interested in purchasing additional software, or a customer wishing to purchase multiple copies, please call us at (909) 885-3806 to take advantage of available discounts.

If you would like to have our software e-mailed to you upon purchase, and do not need a copy on CD, please contact us at (909) 885-3806.

If you have any technical issues, please contact us at (909) 885-3806, or via e-mail at jesse@bonadiman.com.

Thank you very much for your purchase!