Design Manual for Roads and Bridges: Volume 4

Geotechnics and Drainage

Follow the links to view the sub contents for that section.

Section 1 Earthworks
Part 1

HA 44/91 Design and Preparation of Contract Documents
[Paragraph 3.5 is superseded by paragraph 2.22 of SA 3/93 (MCHW 0.3.3)]
[Incorporating Amendment No. 1 dated April 1995]
Scottish Addendum applicable for use in Scotland
Northern Ireland Addendum applicable for use in Northern Ireland

Part 2

HD 22/08 Managing Geotechnical Risk

Part 3

HD 41/03 Maintenance of Highway Geotechnical Assets

Part 4

HA 68/94 Design Methods for the Reinforcement of Highway Slopes by Reinforced Soil and Soil Nailing Techniques

Part 5

HA 70/94 Construction of Highway Earthworks

Part 6

HA 74/07 Treatment of Fill and Capping Materials Using Either Lime or Cement or Both

Part 7
- HA 73/95 Site Investigation for Highway Works on Contaminated Land
- HA 43/91 Geotechnical Considerations and Techniques for Widening Highway Earthworks
- SH 7/83 Specification for Road and Bridge Works: Soil Suitability for Earthworking - Use of the Moisture Condition Apparatus
  [Incorporating Amendment No. 1 dated February 1989]
  For use in Scotland only
- SH 3/84 Model Contract Document for Topographical Surveys
  For use in Scotland only
- SH 4/89 Geotechnical Certification Procedures: Trunk Road Ground Investigations
  [Incorporating Amendment No. 1 dated March 1990]
  For use in Scotland only
- SH 5/89 Topographical Surveys: Certification Procedures
  [Incorporating Amendment No. 1 dated November 1989]
  For use in Scotland only
Part 8

HA 120/08 Guidance on the Trenchless Installation of Services Beneath Motorways and Trunk Roads
Section 2 Drainage

Quick Links

Air Quality

Revised guidance for air quality assessments. Downloadable air quality spreadsheets available.

Highways Agency Accepted EN 1317 Compliant Road Restraint Systems

A list of products that the HA are aware have the required declaration of performance.

Road Restraint Assessment Process (RRRAP)

'Road Restraint Risk Assessment Process (RRRAP) 'Excel spreadsheet which enables designers to establish the need for a vehicle restraint and, if so, its performance requirements.

Safety Barriers

A study on the performance and cost effectiveness of median safety barriers installed on major roads.

Travel of Errant Vehicle Report

A report on how and where errant vehicles travel after leaving the carriageway.

Passively Safe Gantry Risk Model (PSGRM)

The PSGRM has been developed to help designers determine whether or not a passively safe gantry is suitable for a particular site.

Eurocodes

Information on preparations for the use of Eurocodes in the design of UK highway bridges and structures.

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