A well of 0.5 m diameter penetrates an unconfined aquifer with thickness of H below the static water level. The value of discharge pumped from a well is equal to 2.2 lit/sec and the drawdown at the observation wells at 15m, 35m from pumping well are 1.8m, 0.6m respectively. If the rate of rainfall is 1.5 mm/hr, K-0.7 m/day, determine: 1- The transmissivity of the aquifer. 2- The radius of influence of the pumping well.

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A: The given figure is shown below:

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Highway Drainage

Highway drainage is the process of extracting and regulating the excess surface water on the pavement by giving the desired slope. The construction of a highway drain helps to divert the water present on the surface, and sub-grade by the means of slope. Highway drainage systems are a necessary part of smooth functioning of traffic, since the highway drainage systems provide proper disposal of unwanted substances from the highways.