New Site Conditions Quiz Site Conditions Inspection Quiz 1 / 5 All of the following are typical defects in retaining walls EXCEPT: Spalling and efflorescence in masonry and concrete walls Lack of visible reinforcement (no tiebacks in wood walls) Lack of visible weep holes A retaining wall slanted at an angle toward the mass of soil behind it 2 / 5 All of the following are TRUE statements about retaining walls EXCEPT: Retaining walls more than 30 inches tall with no horizontal support may require an engineer approved design and permit to construct. A retaining wall may be any height. Retaining walls that retain a lateral load may require an engineer approved design and permit to construct. Retaining walls less than about two feet tall are sometimes called Landscape Walls or Garden Walls. Walls more than 48 in (4 ft ) tall with no horizontal support may require an engineer approved design and permit to construct. 3 / 5 Which of the following retaining walls is most likely to NOT have a footing? Wood construction retaining wall. Masonry (concrete blocks and bricks) construction retaining wall. Poured concrete retaining wall. Landscape block retaining wall. As well as their height may be limited to around two or three feet. 4 / 5 In TALLER CMU retaining walls, what should be done with the CMU cell? They should be left hollow They should be grouted and reinforced with steel They should be reinforced with wood beams They should be filled with sand 5 / 5 In what situations might taller retaining walls require additional drainage components at the footing? When the wall is constructed with concrete blocks When water is not a concern When weep holes are oversized When water may be a problem or for taller walls Your score is The average score is 0% 0% Restart quiz