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<br />. <br /> <br />. <br /> <br />3) ,Create the Landslide Hazards Map as GIS map layers (70%) <br /> <br />Using the 1041 map layers and the slope classification map as a starting point, the CGS will <br />assess the polygon information (i.e" the boundaries that delineate various geologic-hazard <br />areas ), We will compare the polygon boundaries with information from other maps and <br />reports, the slope and bedrock data, and recent experience in the area, to create new GIS map <br />layers that focus specifically on landslide hazards, Where possible, the polygon boundaries <br />will be checked using available stereo air-photos and by field-checking certain locations, <br /> <br />The finished GIS product will show a relatively straightforward interpretation scheme that <br />relates to known landslide hazards and potential landslide-susceptible terrain, including <br />potentially unstable slopes, The map polygons will be created using the FIMS base map at an <br />optimum-use scale of 1 inch = 800 feet. A metadata me that includes the map explanation <br />will be created as part of this task. <br /> <br />4) Prepare an Executive Summary report (20%) <br /> <br />The CGS will prepare an Executive Summary report that will explain our methodology, <br />pertinent [mdings, map units, suggested uses, and conclusions. <br /> <br />Deliverables <br /> <br />The CGS will produce GIS map layers, using ESRI software, that show landslide hazards and potential <br />landslide-susceptible terrain, along with a map explanation that will be included in a metadata file, In <br />addition, the CGS will produce a separate Executive Summary report that will explain all of our pertinent <br />fmdings. All of these items will be delivered on CDIROM discs to the City of Colorado Springs, The <br />initial project deliverable distribution list will include the Engineering, Planning and Zoning, and <br />Emergency Management Offices of the City of Colorado Springs, Copies of the map layers and report on <br />CDIROM will also be delivered to FEMA and CWCB. <br /> <br />Post-Proiect Publishing <br /> <br />The CGS will publish the map and report for public sale and distribution, This hard-copy map will be <br />created at a scale of 1 inch = 2,000 feet and overlain on USGS DLG base maps at the standard 1 :24,000 <br />quadrangle scale; FIMS base maps or other proprietary coverages will not be used, The creation and <br />distribution of the hard-copy map is beyond the scope of this project. <br /> <br />Disclaimers <br /> <br />The selected mapping scale will be chosen to meet or improve the mapping accuracy from that of the <br />existing 1041 Maps (1 inch = 2,000 feet), This scale was selected to optimize the usability of the map for <br />its intended purpose of providing general categories of landslide hazard information to the city, The map <br />will not be accurate at scales that are smaller (i.e" more detailed) than the mapping scale, The map is not <br />intended for site-specific design purposes or for assessing specific levels of landslide hazard risk at a <br />particular location, <br /> <br />This project will be conducted without the benefit of detailed and costly site investigations, Therefore, <br />many questions will remain unanswered about the overall stability and future affects of the landslides and <br />landslide-susceptible terrain, Modeling the slope stability and assessing the future mitigation of the <br />landslides is clearly beyond the project scope, These disclaimers will also be stated on the fmal published <br />I :24,OOO-scale maps and in the metadata files, <br /> <br />3 <br />