3. Factors that can be appraised with “yes,” “no,” or “question” (insufficient information)
A. Front face battering
B. Trapezoidal wall back
C. Using marginal backfill material
D. Unstable slope
E. High water table or seepage
F. Facing as load-carrying element
G. Active (minimal) lateral earth pressure condition
H. Construction-dependent loads
I. Project scale
J. Noise or water pollution
K. Available standard designs
L. Facing cost
M. Durability
4. Factors that can be approximated from recorded height
A. Maximum wall height
B. Economical wall height