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Shallowest swale
@2% slope - every 1 contour line every 50’
^^with contours at 1’ intervals
in a scenario with retaining wall, contours will follow…
the edge of the retaining wall! and then meet back again
Handrails required every ___ steps
3+
railing should extend __ inches beyond beginning & end of ramp
12
in ramps, a landing measuring __ to _ ft in width should be provided for every 30 inches of vertical rise
5 to 6 ft
Cross slope should be __% to facilitate drainage
2%