Slight modification to IaGary's procedure when surveying around obstacles: 1. Set the level (or transit if you want more calculations) halfway between one point of interest (end or beginning of waterline) and a "turn" point. 2. Take the measurement of the start, this is the backsight. 3. Take the elevation of all the points visible noting which point you want to "turn on" (this is the frontsight). Note this point should be a hard point (concrete slab, firm post in the ground, etc) 4. Move the level halfway between the frontsight in number 3 and the next frontsight. 5. Re-read the old frontsight(#1) as the new backsight(#2) for this location. Read any new points of interest and the new frontsight(#2). 6. Keep repeating 3-5 until you get around the obstacles. 7. For data integrity, make a full loop and close with your starting point. 8. Assume an elevation of the starting point (1000') and do the math (1000+backsight1-frontsight1= new elevation of a point) for the first turn. 9. If you get two different elevations for the start point from beginning to end, distribute the error by the number of "turns" you did.
By doing it this way you don't have to set the level (or transit) at a specific height each time.
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Today's Featured Article - Identifying Tractor Smells - by Curtis Von Fange. We are continuing our series on learning to talk the language of our tractor. Since we can’t actually talk to our tractors, though some of the older sect of farmers might disagree, we use our five physical senses to observe and construe what our iron age friends are trying to tell us. We have already talked about some of the colors the unit might leave as clues to its well-being. Now we are going to use our noses to diagnose particular smells. ELECTRICAL SMELLS
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