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GRADING <br />Description: <br />Overall, the site is relatively flat with a <br />slight downward slope to the east. The <br />grade has a pronounced negative slope <br />towards the house on the west side as it <br />slopes down from the Jefferson Avenue <br />sidewalk towards the house. This <br />negative drainage was likely created <br />00.�when the streets around old town <br />Louisville were paved, thus raising their <br />� historic elevations relative to the houses <br />in the area. This is particularly noticeable <br />in this area along the east side of <br />Jefferson Avenue. Finished grade sits <br />below the finish materials of the house in <br />most areas, though minimally along the <br />west side and in some areas on the west <br />side the grade sits at or above the height <br />of the foundation. <br />Condition Evaluation: <br />The overall site grading is in poor <br />Negative drainage along the west property line <br />condition. It is important that the grading <br />around the house should be a minimum of 6 inches below the top of the foundation and slope away from the <br />foundation for at least the first 5 feet. Due to the nature of the lot, it is difficult to meet these requirements <br />without some amount of regrading or lifting the building and pouring a new foundation. <br />DAA JDESIGN <br />ARCH ITECTURE+INTER IORS <br />Typical relationship huwecn grade and finish matcrial <br />The effects of poor grading are difficult to determine in one site visit. However, the owner notes that there is <br />water infiltration into the basement during and after significant rain and snow events. Furthermore, the affected <br />areas are not visible without the removal of finish materials. It is apparent however that the grading around the <br />house, particularly on the west side, directs surface water towards the house foundation. <br />Recommendations: <br />1. Continue to monitor the drainage around the perimeter of the house. The perimeter should be <br />observed after snow and significant rain events to assess for all areas of pooling water. <br />2. The top of the foundation relative to the top of grade should be determined around the entire <br />perimeter of the house. If the top of the foundation is determined to be at or below the existing grade, <br />new grading should occur to bring the grade down below the top of the foundation, as prescribed by a <br />licensed structural engineer. <br />3. Finished grade around the house perimeter should be re -graded to create positive drainage away <br />from the house. The top of finished grade should be a minimum of 6 inches below the top of the <br />foundation and slope away from the foundation for at least the first 5 feet. Coordinate slope with a <br />licensed geotechnical engineer. <br />4. The house foundation should be replaced to bring the top of foundation at least six inches above <br />finished grade. Coordinate with a licensed structural engineer and a licensed geotechnical engineer. <br />5. The wood floor framing members including the sill plate, rim board, floor joists, and floor sheathing <br />should be inspected for rot caused by poor drainage. If rot is found in any of these members, the <br />affected flooring should be replaced as prescribed by a licensed structural engineer. <br />700 PINE PAGE - 10 <br />