The City of Rugby was experiencing flooding during rainfall events due to inadequacy of their storm sewer system. AE2S was retained to develop a city-wide storm sewer system to reduce flooding during heavy rain events. AE2S performed a detailed study of the City’s problem areas, the priority of those areas, suggested improvements, and cost estimates for the creation of a City-Wide Stormwater Management Plan. The City was granted a Federal Hazard Mitigation Grant by the Federal Emergency Management Agency (FEMA) to aid the replacement of portions of the system and for new storm sewer improvements. The result of the planning and funding stages identified the priority areas within the funding budget and culminated in a Storm Sewer Improvements project which consisted of 24-inch to 48-inch piping, manholes, inlets, restoration, and landscaping. For a more detailed description click here.

Big Tree Nursery asked AE2S for assistance with the development of a site grading/drainage plan for a proposed 3-acre commercial business site, as well as assistance with stormwater permitting. The site was subject to Minnesota Pollution Control Agency National Pollutant Discharge/State Disposal System permit requirements and also was required to complete a Stormwater Pollution Prevention Plan (SWPPP). AE2S proposed a stormwater quality/detention pond to control water from storm events. Modeling was utilized to analyze the existing and proposled drainage conditions for the site. The model also enabled the proper analysis of the proposed outlet device. AE2S drafted a SWPPP, as well as taking care of the other permitting/drainage requirements, and Big Tree Nursery was able to obtain their city drainage permit in under an hour. For a more detailed description click here.

AE2S was retained to conduct a comprehensive stormwater management master plan for the East Campus of the University of North Dakota. The campus was experiencing flooding problems and frequent water damage during rainfall events. The study included a detailed subsurface investigation to determine the condition, composition, and extent of the storm sewer system. A computer model of the watersheds and piping systems was constructed to enable accurate analysis and efficient modeling of proposed imrpovement options. For a more detailed description click here.

AE2S was retained to develop a water quality management plan and stormwater modeling for the Urban Plains development in Fargo, ND. The development includes a unique water feature which provides a local attraction and stormwater retention. Runoff analysis was performed and a HydroCAD model was set up to replicate the existing on-site conditions. The model was used to generate peak flows for 2-year, 10-year, and 100-year hydrologic events. A model was also created in XP-Storm Stormwater Management to aid in the design of the stormwater system. A water quality management plan was then created, using estimated nutrient and sediment loading to the main pond from the proposed uses of the surrounding land. The plan included appropriate water control strategies and water quality control recommendations for construction of the water feature. For a more detailed description click here.