For TxDOT applications, storm water quantity management mitigates the potential effects of increased runoff rates and volumes that can often accompany development, including highway construction. These effects include increased erosion and sedimentation, increased pollutant loads, and increased flood levels and velocities. By assessing the potential for increased runoff volume and, if necessary, taking measures to offset such increases, the department can minimize the potential for detrimental impact due to storm water runoff.