Driveway TopographyBy Joseph and Matt Dick

IntroductionPurpose

Gather elevation data with Total Station to manage water flow

Goals Proper operation of Total StationSuccessfully use a turning pointProduce topographic map with data

Data Collection StageEvaluate site for best Total Station locationsDevelop strategy for point collection methodPerform correct set-up of Total Station and

prism poleShoot benchmark & collect first set of pointsTuring pointShoot benchmark & collect second set of

points

View N to S of driveway

View to N from Total Station

View S from Total Station

Total Station at 2nd Location

Data Analysis StageConverted azimuth readings to decimal

degreesConverted vertical distance readings to

elevationBenchmark = 100ft1st Total Station elevation = 97.345ft2nd Total Station elevation = 109.66ft

Entered all point data in excel spreadsheet

Mapping StageCreate shape files for points and linesEnter point dataUsed spline interpolation and contour toolsAcquired satellite imagery of propertyGeoreferenced imagery to pointsCreated final map product

ResultsThe driveway has varying elevationsPoints 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

DiscussionPossible 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

ConclusionsDriveway needs a ditch to divert waterHave a map to show landscaper/excavatorDon’t need a second bench mark, and

remember to get back bearing for turning point

Questions?