Laserfiche WebLink
Soil Information for All Uses <br />Suitabilities and Limitations for Use <br />The Suitabilities and Limitations for Use section includes various soil interpretations <br />displayed as thematic maps with a summary table for the soil map units in the <br />selected area of interest. A single value or rating for each map unit is generated by <br />aggregating the interpretive ratings of individual map unit components. This <br />aggregation process is defined for each interpretation. <br />Building Site Development <br />Building site development interpretations are designed to be used as tools for <br />evaluating soil suitability and identifying soil limitations for various construction <br />purposes. As part of the interpretation process, the rating applies to each soil in its <br />described condition and does not consider present land use. Example <br />interpretations can include corrosion of concrete and steel, shallow excavations, <br />dwellings with and without basements, small commercial buildings, local roads and <br />streets, and lawns and landscaping. <br />Local Roads and Streets <br />ENG - Engineering <br />Local roads and streets have an all-weather surface and carry automobile and light <br />truck traffic all year. They have a subgrade of cut or fill soil material; a base of <br />gravel, crushed rock, or soil material stabilized by lime or cement; and a surface of <br />flexible material (asphalt), rigid material (concrete), or gravel with a binder. The <br />ratings are based on the soil properties that affect the ease of excavation and <br />grading and the traffic-supporting capacity. The properties that affect the ease of <br />excavation and grading are depth to bedrock or a cemented pan, hardness of <br />bedrock or a cemented pan, depth to a water table, ponding, flooding, the amount of <br />large stones, and slope. The properties that affect the traffic-supporting capacity are <br />soil strength (as inferred from the AASHTO group index number), subsidence, linear <br />extensibility (shrink-swell potential), the potential for frost action, depth to a water <br />table, and ponding. <br />The ratings are both verbal and numerical. Rating class terms indicate the extent to <br />which the soils are limited by all of the soil features that affect the specified use. <br />5