Road structures and road standards

Policy and Procedures Guides

DfI Roads policies, procedures and documents relating to the standards, construction, design, and approval of structures on the roads network

• DfI Roads design standards RSPPG E003
• Design departures from standard RSPPG E006
• Design relaxations of standard RSPPG E007
• Geotechnical certification procedure RSPPG E008
• Assessment and design of masonry parapets RSPPG E020
• The supplementary load testing of bridges RSPPG E046
• Technical approval of low risk highway structures RSPPG E077

Director of Engineering Memorandums

DfI Roads memorandums relating to the standards, construction, design, and approval of structures on the roads network

• Post-tensioned grouted duct concrete bridges DEM 005 99
• Technical approval of highway structures (BD2/02) DEM 040 02
• The use of gabions in road construction DEM 044 02
• Implementation of new reinforcement standards DEM 095 06
• Principal and general inspection of sign/signal gantries and gantries with low handrails or open mesh flooring DEM 102 06
• Substandard parapet connections DEM 106 07
• The use of BS8500 (2006) for reinforced concrete structures DEM 107 07
• The anchorage of reinforcement and fixings in hardened concrete DEM 112 08
• Matrix signs on gantries DEM 115 08
• Deflection of permanent formwork DEM 126 10
• The use of foamed concrete DEM 133 11
• Use of eurocodes for the design of highway structures DEM 134 11
• Precast concrete copings - inspection DEM 139 12
• Modular/multi-element expansion joints DEM 145 13
• Scheme design approval procedures for non-trunk roads DEM 162/16