00000nam 2200000za 4500 9.847729 CaOODSP 20241203113640 cr ||||||||||| 171124s1985 onca|||fo f000 0 eng d CaOODSP eng eng fre n-cn--- En13-5/85-15E-PDF Marsalek, J. Head losses at selected sewer manholes [electronic resource] / by J. Marsalek. Burlington, Ont. : Hydraulics Division, National Water Research Institute, Canada Centre for Inland Waters, 1985. xi, 88 p. : ill. NWRI contribution ; 85-15 "July 1985". Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "The APHA Research Foundation with the support of 32 public agencies and the Hydraulics Division of the National Water Research Institute have jointly undertaken a study to improve the design of junction manholes. Hydraulic head loss in sanitary and stormwater systems can lead to diminished capacity of the downstream pipes. Such capacity loss may result in raising the hydraulic grade line and the creation of flooding conditions. Relief facilities are often required or new development prohibited in order to protect adjoining property.Thus, minimization of hydraulic head loss in both new and existing systems may be an important tool in alleviation of problems in some key facilities"--Foreword, p. i. Includes foreword and abstract in French. gccst Water management gccst Drainage Canada. Environment Canada. National Water Research Institute (Canada) NWRI contribution ; no. 85-15 (CaOODSP)9.844121 PDF 6.33 MB https://publications.gc.ca/collections/collection_2017/eccc/En13-5-85-15-eng.pdf