Professional services in all
areas of engineering practice are commonly categorized according to the nature of services
and stages of a project. The following categories have been selected to facilitate the
selection of an appropriate fee basis for geotechnical and materials engineering
1. Consultative and Advisory
2. Pre-Design Services
3. Design Services
4. Contract Administration and Review During Construction
5. Resident Services During Construction
6. Special Services
1.1 CATEGORY 1 CONSULTATIVE AND ADVISORY SERVICES
Examples of this category are:
1. Expert testimony;
2. Surface and subsurface assessments;
3. Investigations (groundwater, drainage, stability, etc.);
4. Inspection, testing or other services concerning the collection, analysis,
evaluation and interpretation of data and information leading to specialized conclusions
5. Feasibility studies including monitoring site conditions;
6. Failure investigations.
1.2 CATEGORY 2 PRE-DESIGN SERVICES
These consist of services to establish requirements for preliminary design, including,
but not limited to:
1. Determination of Scope of Project;
2. Preliminary surface and subsurface investigation of sites and aspects of location
that may affect the design;
3. Preliminary surveys, geotechnical investigations and other site specific reviews for
preliminary design decisions;
4. Preparation of Pre-design Report covering siting alternatives, conceptual sketches,
specification notes, probable construction cost and schedule.
1.3 CATEGORY 3 DESIGN SERVICES
These services follow the establishment of project requirements described in Category 2
and consist of the preparation of designs, drawings, specifications and contract
documents. They generally include the following:
a) Preliminary Design
i) Preparation of preliminary sketches and outline specifications illustrating and
defining the design concept in terms of siting, surface and subsurface characteristics.
ii) Detailed surveys, geotechnical investigations and other site specific evaluations
for detailed design decisions.
iii) Preparation of Preliminary Design Report covering preliminary sketches, outline
specifications, alternates, estimated construction cost and schedule.
iv) Advise and/or assistance in obtaining approval from the Authorities.
b) Detailed Design
i) Preparation of design drawings and specifications, material mix designs and detailed
ii) Preparation of estimates of the cost of the work including design and construction
iii) Review and coordination with other design disciplines.
iv) Assistance in obtaining approval from Authorities for the total project or specific
aspects of it.
1.4 CATEGORY 4 CONTRACT ADMINISTRATION AND REVIEW DURING CONSTRUCTION
These services consist of contract administration and periodic field visits by the
Geotechnical or Materials Engineering Consultant during the construction period following
contract award. They include the following:
1. Administration of the geotechnical aspects of the contract.
*2. Visits to the construction site to review the geotechnical aspects of the project
for progress, quality and conformance to the drawings and specifications.
3. Review and approval of change orders.
4. Preparation of construction progress reports to the Client.
5. Interpretation of the geotechnical and materials engineering aspects of the contract
documents as required by the Contractor or Client.
6. Examination of progress claims for the purpose of approving progress payments.
7. Preparation of Construction Completion Certificate following final review of
These services are distinct and separate from those described in Category 5 Resident
Services During Construction and should not in any way be considered a substitute for
them. The two categories of services are complementary, however, and this should be taken
into account when the scope of services for geotechnical and materials engineering is
established on a project.
If there is requirement for field services by the Geotechnical and Materials
Engineering Consultant, which necessitates attendance at the site for periods of varying
duration during construction, this should be reflected in the Category 5 scope of
* See the APEGGA Guideline on Review During Construction on Building
1.5 CATEGORY 5 RESIDENT SERVICES DURING CONSTRUCTION
This category consists of supplying resident staff on the project to provide specific
geotechnical or materials engineering services described in the scope of assignment. The
services usually include activities which are designed to assist the Consultant in
administering the contract and in determining if the work is being performed in accordance
with the contract documents.
Resident services may include items such as:
1. Materials testing, quality control and review for conformance with the contract
2. Informing the Contractor regarding quality control testing results;
3. Informing the Consultant representative responsible for Contract Administration and
Review During Construction regarding quality assurance, workmanship and progress.
The services described above do not include the direction of Contractor personnel in
methods, scheduling or equipment selection except as may be specifically prescribed in the
contract documents, since these are normally a Contractor responsibility.
1.6 CATEGORY 6 SPECIAL SERVICES
The services in this Category vary in scope and detail according to the needs of the
Client and should be described in the scope of the assignment.
They include, but are not limited to:
1. Preparation of record drawings (As Built).
2. Consultation on special problems during warranty period.
3. Alternative Designs requested by the Client following completion of a normal design
process in which various alternate materials and layouts are considered.
4. Redesign arising from circumstances beyond the Geotechnical and Materials
Engineering Consultant's control.
5. Technical specialist input including any special services involved in the
coordination of specialist subconsultants.
[ Home | Section 1 | Section 2 | Section 3 | Section 4 ]
[ Appendix A | Appendix B
| Appendix C | Appendix D ]