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Managing Driveway Topography: Effective Data Collection and Water Flow Management

This guide outlines the methodology for collecting elevation data using a Total Station to effectively manage water flow on a driveway. It details the steps to operate the Total Station, establish benchmarks, and collect accurate topographic data. Key phases include site evaluation, data collection strategies, and data analysis. Results indicate that the driveway's varying elevations require a ditch for efficient water diversion. The final contour map will assist landscapers in making informed decisions for effective site management.

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Managing Driveway Topography: Effective Data Collection and Water Flow Management

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  1. Driveway Topography By Joseph and Matt Dick

  2. Introduction • Purpose • Gather elevation data with Total Station to manage water flow • Goals • Proper operation of Total Station • Successfully use a turning point • Produce topographic map with data

  3. Data Collection Stage • Evaluate site for best Total Station locations • Develop strategy for point collection method • Perform correct set-up of Total Station and prism pole • Shoot benchmark & collect first set of points • Turing point • Shoot benchmark & collect second set of points

  4. View N to S of driveway

  5. View to N from Total Station

  6. View S from Total Station

  7. Total Station at 2nd Location

  8. Data Analysis Stage • Converted azimuth readings to decimal degrees • Converted vertical distance readings to elevation • Benchmark = 100ft • 1st Total Station elevation = 97.345ft • 2nd Total Station elevation = 109.66ft • Entered all point data in excel spreadsheet

  9. Mapping Stage • Create shape files for points and lines • Enter point data • Used spline interpolation and contour tools • Acquired satellite imagery of property • Georeferenced imagery to points • Created final map product

  10. Results • The driveway has varying elevations • Points taken lined up with the driveway (they were accurate!) • The contour map confirms that water will flow down the center of the driveway from south to north

  11. Discussion • Possible errors • Had concerns about turning point and accuracy of point data there after • Weather was cloudy and raining at time during data collection • Points 58 and 94 were not included because they were far outside data collection area • Point collection method could have skewed results

  12. Conclusions • Driveway needs a ditch to divert water • Have a map to show landscaper/excavator • Don’t need a second bench mark, and remember to get back bearing for turning point

  13. Questions?

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