An underpass road crossing a reinforced concrete bridge along the Shaw Boulevard has a downward grade of - 4% meeting an upward grade of +8% at the vertex V (elevation 70.00 m) at station 7 + 700, exactly underneath the center line of the bridge having a width of 10 m. If the elevation at the bottom of the bridge is 78.10 m and the required minimum clearance under the bridge is 5 m, determine the following: (a) Required length of vertical curve that shall connect the two tangents. (b) Stationing and elevation where a catch basin will be placed.