Laserfiche WebLink
7.2. EquivalentNeWRedevelopmentAreas <br />The Equivalent New/Redevelopment Areas for the project are summarized in Appendix D. Ten <br />(10) of the biofiltration swales will achieve full stormwater treatment equivalent to a <br />nedredeveloped project and ten (10) of the biofiltration swales will achieve partialstormwater <br />treatment within their respective subbasins. <br />The overallwater quality benefit to be realized within the study area is 31 percent. This is <br />quantified by comparing the total calculated Equivalent NeMRedevelopment Areas, 46.6 acres, <br />to the Treatment Assessment Area, 152.0 acres. The water quality benefit can be further refined <br />with the advancement of each ClP. <br />8. Capital lmprovement Plan <br />The BMPs are based on the preliminary design calculations. Multiple considerations should be <br />made for design implementation. Site investigations including topographic survey and <br />geotechnical evaluations should be conducted for effective design of each BMP. Public outreach <br />should be organized to gather input and support for project improvements. Final design should <br />include the consideration of sizing for snow storage, selection of site appropriate plantings for the <br />region, and access for operations and maintenance. Engineering and construction adminislration <br />should be included for effective design and construction of each BMp. <br />The BMPs within the study area are divided into three separale ClPs for project planning <br />purposes: CIP 1, CIP SW-1, and CIP SW-2. CIP 1 includes the biofiltration swales identified <br />within the CIP 1 Treatment Assessment Area. The CIP 1 treatment project will be advanced in <br />detail design after study completion. CIP SW-1 and CIP SW-2 include the remaining biofiltration <br />swales identified in the Treatment Assessment Area. Biofiltration swales in Clp SW-1 and Clp <br />SW-2 are grouped to include a similar quantity of biofiltration swale area as compared to the Clp <br />1 treatment project. <br />The estimated construction cost of CIP SW-1 includes Biofiltration 81,Bi2, C1A, Dl, and D2. The <br />estimated construction approximated cost of CIP SW-2 includes Biofiltration 814, 81SA, 8164, <br />D+, c2, H4, and H5. clP sw-1 and clp sw-2 may be implemented through individual <br />biofiltration swale design and construction, or in clusters as specific stormwater treatment funding <br />is available and/or incorporated with roadway improvement projects. <br />9