This chapter was contributed by J.C.Parker, B.Sc. Hort., A.L.I., Chief Landscape Manager, Kent County Council, based on a section originally included in Landscape Management and Maintenance—A Guide to its Costing and Organisation, published by Gower Technical, 1989.
Cost benefit implications
5.1 Assessing the value of drainage
The economic value of drainage on any plot of land is usually difficult to quantify in precise terms. Even in agriculture where crop yields can be accurately measured, it is still not possible to predict with any certainty what would be the most economic level of artificial drainage in terms of return on ...