Civil engineers for a better world
Author(s): Schall JD, Thompson PL, Zerges SM, Kilgore RT Publisher: FHWA Year: 2012 Links: PDF, HTML (1985 edition) Subjects: Culverts Hydraulic Design Series Number 5 (HDS 5) originally merged culvert design information contained in Hydraulic Engineering Circulars (HEC) 5, 10, and 13 with other related hydrologic, storage routing and special culvert design information. This third […]
5,548 total views
Author(s): LA Herr Publisher: FHWA Year: 1972 Links: PDF Subjects: Culverts This circular contains a series of hydraulic capacity charts which permit the direct selection of a culvert size for a particular site without making detailed computations. The charts in this circular do not replace the nomographs of Hydraulic Engineering Circular No. 5 (HEC No. […]
4,730 total views
Author(s): L.J. Harrison, J.L. Morris, J.M. Normann, F.L. Johnson Publisher: FHWA Year: 1972 Links: PDF Subjects: Culverts This manual provides hydraulic design methods for circular and rectangular culverts with improved inlets. Improved inlets are bevels, side-tapers, and slope-tapers which are modifications to the culvert entrance geometry . These improvements can greatly increase the performance of […]
4,848 total views
Author(s): Kilgore RT, Cotton GK Publisher: FHWA Year: 2005 Links: PDF Subjects: channel lining, channel stabilization, tractive force, resistance, permissible shear stress, vegetation, riprap, manufactured linings, RECP, gabions Flexible linings provide a means of stabilizing roadside channels. Flexible linings are able to conform to changes in channel shape while maintaining overall lining integrity. Long-term flexible […]
5,933 total views
Author(s): S.A. Brown, J.D. Schall, J.L. Morris, C.L. Doherty, S.M. Stein, J.C. Warner Publisher: FHWA Year: 2009 Links: PDF Subjects: Storm Drains, Inlets, Storm Water Management, Water Quality, Best Management Practices, Pumps, Drainage Design This circular provides a comprehensive and practical guide for the design of storm drainage systems associated with transportation facilities. Design guidance […]
10,801 total views
Author(s): FHWA Publisher: FHWA Year: 2015 Links: PDF Subjects: Permeable pavement This TechBrief presents an overview of permeable interlocking concrete pavement (PICP) and its use. General information is provided on PICP composition with a summary of benefits, limitations, and characteristics. Important considerations such as hydrological design, structural design, construction, and maintenance are also provided. 4,675 total […]
4,675 total views
Author(s): FHWA Publisher: FHWA Year: 2014 Link: PDF Subjects: Bio-retention, Green The Standard Specifications for the Construction of Roads and Bridges on Federal Highway Projects (FP) is issued primarily for constructing roads and bridges on Federal Highway projects under the direct administration of the Federal Highway Administration. It is also used by the U. S. […]
4,820 total views
Author(s): San Francisco Estuary Partnership Publisher: San Francisco Estuary Partnership Year: 2012 Link: PDF Subjects: Bio-retention, Green The El Cerrito Green Streets Pilot Project consisted of installing a series of stormwater treatment rain garden cells at two locations along San Pablo Avenue in the City of El Cerrito. The project also included water quality monitoring, […]
4,996 total views
Author(s): ACPA Publisher: American Concrete Pipe Association Year: 2018 Link PDF Subjects: Construction, Culverts, Pipes, RCP This manual presents a guide for the proper installation of concrete pipe. For many years, the American Concrete Pipe Association has conducted comprehensive research and analysis of the factors which affect the field performance of concrete pipe. The knowledge […]
4,219 total views
Author(s): L Huisman, WE Wood Publisher: WHO Year: 1974 Links: PDF Subjects: Filtration, Water supply The object of this volume is to discuss the various aspects of one particular form of water treatment-the “ biological filtration ” or “ slow sand filtration” process. This system of water purification has been in continuous use since the […]
4,121 total views
