Road Construction Practice & Procedures Pt. 2 RRET 3311

Upon successful completion, the student will be able to:

Module 6 - Drainage Works

• Describe the benefits of an effective road drainage network.
• Identify and explain the following ditching terms:
• Ditch blocks
• Ditch depths
• Methods of filter sediment
• Types of ditches (‘V', scraper, etc.)
• List the criteria used for the selection of various culvert materials.
• Describe culvert installation techniques.
• List the specifications used to order various types of culverts.
• Describe the techniques used to install culverts on steep slopes, (i.e., steep grades with ditches prone to plugging).
• Differentiate between stream culverts and cross drain culverts.

Module 7 - Road Surfacing Materials

• Describe the qualities of suitable gravel.
• Identify the terms used to define grain size distribution.
• Identify potential aggregate borrow areas.
• Describe when screening or crushing operations are appropriate.
• Describe compaction techniques using specialized equipment.

Module 8 - Revegetation Techniques

• Describe the purposes of revegetation.
• Describe the field conditions that require planned treatment to achieve timely revegetation.
• Seeding: direct dry, wet, hydro, helicopter
• Species: grass, legumes, shrubs, trees
• Special treatments: mulching, wattling, layering
• Erosion control matting
• Identify the appropriate method(s) and timing of treatment for given field conditions.

Module 9 - Miscellaneous Structures

• Describe the types and applications of retaining walls used in forest road construction.
• Describe the types and applications of retaining walls used in forest road construction.
• Describe the types and applications of other specialized structure used in forest road construction, including:
• Trash racks
• Cattleguards
• Guardrails
• Highway junctions
• Powerline crossings
• Railway crossings
• Pipeline crossings

Module 10 - Inspection and Quality Control

• Describe the critical phases in the construction process, as well as weather and seasonal criteria, that need special attention.
• Describe how the frequency of inspections is related to risk assessment.
• Describe the field indicators of good and poor forest road construction practices and procedures.
• Inspect road building practices and procedures for overall conformance with contract specifications and Ministry of Forests Road Standards.
• Complete evaluation checklists/reports to establish historical records for a given road construction project.

Effective as of Fall 2003