A stairway, ladder, ramp or other safe means of egress must be located in trench excavations that are 4 feet (1.22 m) or more in depth so as to require no more than 25 feet (7.62 m) of lateral travel for employees. Designed to prevent slipping.
Pitching wedges have a loft of between 46 and 48 degrees. Approach wedges have lofts between 50 and 52 degrees. The extra loft on the approach wedge helps it to get up in the air, but decreases the distance hit.
The measured sight distance for this maneuver is 350 feet. The minimum recommended sight distance is 335 feet for 30 mph. This shows that there is adequate sight distance for a right-turn maneuver from the side road, 13th Street. Figure 4.11 shows the measurement that was conducted for a left-turn maneuver.