Open Ditches for Drainage – US Department of Agriculture
5-5 Drainage runoff curves for sample drainage ditch design. Fig. 5-6 Procedure
… 4, The construction, operation, and maintenance of the ditch must be carried …

Foxholes, Hertford

were thee principal phases of Roman occupation in the area, from ditch construction in the 1st–2nd centuries, a farmstead from the 2nd–4th century with

substantial-completion-nancemond-street-fNancemond Street Outfall Stabilization
from fairfaxcounty, ago in
Nancemond Street Outfall Stabilization

, on

Jefferson River Levee, Ditch Construction, Three Forks: Environmental Impact …
unknown, published 1972, 0 pages