construction of a steep staircase near a concrete wall. railing above

winter snow tree frost freezing ice branch plant soil leaf water nature rock geology forest flower blizzard stream woodland beveled blocks bridge building concrete construction cotoneaster covered deck design fence floor gabion galvanized garden grate gray grid horizontalis industrial infrastructure interlocked laurocerasus lawn mesh metal net plank pole prunus railing ramp retaining wall stainless steel staircase stairway steps terrace transparent walled welled white wire wooden