TY - BOOK AU - O'Reilly,M.P. AU - Brennan,G. ED - Transport and Road Research Laboratory. ED - Transport and Road Research Laboratory. ED - Transport and Road Research Laboratory. TI - A survey of the condition of 19 km of highway drains T2 - Research report SN - 0266-5247 PY - 1989/// CY - Crowthorne, Berkshire PB - Ground Engineering Division, Sturctures Group, Transport and Road Research Laboratory KW - Road drainage ER -