Testing and Observation

Testing and Inspection Services

Testing and Inspection Services

Construction Phase Services are a large component of CGA's business.  We maintain a core group of trained and certified testing technicians and construction representatives that will check compliance of the project with the plans and specifications, record and document the contractor's activities, prepare related reports, and serve as the Project Engineer's liaison with the contractor.

Construction Observation

Before any construction activity starts, CGA will prepare a Construction Management Program (CMP).  This program will identify the individuals and testing laboratories to be involved, provide certificates of accreditation, qualifications and provide a listing of tests and procedures to be followed.

For each project a log of standard construction documents is compiled by the resident construction representative.  The log contains Daily Diaries, Bid Items Quantity logs, Weekly Working Day reports, and Weekly Quantity reports.  The Daily Diaries and Weekly reports are submitted to the Project Manager each week.  The same information will be transmitted to the owner as requested.  The log also contains any other forms or reports that are required.  Examples would be local City forms for sanitary sewer laterals, pipe testing, manhole testing, and mandrel forms.

CGA has implemented the use of Ipads in the field to facilitate the recording of data and speed its transmission.  Reports and photos can be transmitted instantaneously between the construction representative, the project manager, and the client.  This paperless documentation saves time and allows all parties to remain fully informed when required.

CGA invests in staff training each winter to maintain Iowa DOT certifications, attendance at paving seminars, general construction observation practices, stormwater erosion practices, and various other seminars.

Construction Testing

Testing services are divided into three general categories-laboratory, field and manufactured materials.  Laboratory testing will be accomplished by a trained CGA technician with proper accreditation to satisfy the authoritative body's requirements.  Field testing will be accomplished by the resident observer and will include various field quality tests along with the collection of samples for laboratory testing.  Manufactured materials such as joint sealer and pavement reinforcing materials will be accepted based on the vendor's certification that the materials meet specifications.

CGA maintains a material testing lab with the following equipment to handle testing on soil compaction and portland cement concrete:

  • PCC air content
  • PCC slump cones
  • PCC strength testing
  • Field nuclear density testers
  • Equipment for standard proctor density determinations
  • Various levels, measuring devices, digital cameras, etc.