how would you determine the vertical distance of the water level of a pond from the main road?
Answers:
Drive your car into the lake, reset your odometer, drive to the road, measure the distance....... duh!
Other answers:
Surveyors use a plum bob to measure the rise and fall of terrain over distance.
Surveyors use a plum bob to measure the rise and fall of terrain over distance.
with your back to the road measure the depth of the water level with a measuring tape, then turn your back to the pond and level your sight parallel to the ground and then fix some point on the ground level which will be nearly equal to your height towards the road then go to that point and repeat the same procedure (II) until you get to the road. this is a crude method but it works.
The easiest way would be to use a hose pipe, a funnel and a few buckets of water. Fill the hose pipe up with water and start at the highest point that you want to measure. Get someone to hold the one end of the hose pipe at the highest point and holding your finger over the other end take the other end of the hose to the lowest point. Lift the hose end up until water no longer flows out of the end at the lowest point (You'll have to keep on filling the hose at the highest point). Once water stops flowing you know that the two ends are at the same level. Measure how high you have had to lift the hose from the ground at the lowest point and that will give you the vertical distance between the two levels.