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Construction Inspection Requirements and Procedures
Pavement, Slabs and Sidewalks
Please note that if the Engineer is not contacted for the required inspections (site observations) he may not be in the position to certify the project.
Subgrade Inspection
WHEN: After the subgrade is compacted (with passing densities) and before the baserock is placed.
FREQUENCY: Stringline at every grade stake or as directed by engineer.
MATERIALS NEEDED: Personnel to stringline.
Baserock Inspection
WHEN: After the baserock is compacted (with passing densities) and before the asphalt is placed.
FREQUENCY: Stringline at every grade stake or as directed by engineer.
MATERIALS NEEDED: Personnel to stringline.
Sidewalk/Slab Form Inspection
WHEN: After subgrade is compacted (with passing densities). After sheeting and reinforcing steel is placed (if required in the documents) and before concrete is placed. Formwork shall be in final position and not require adjustment.
FREQUENCY: Each new prepared area.
MATERIALS NEEDED: Straightedge.
Pavement Placement Inspection
WHEN: At the start of asphalt placement (after tack coat is down) and during the placement procedure.
FREQUENCY: At the beginning of new paving operations.
Final Pavement Inspection
WHEN: After the final lift of pavement is placed.
FREQUENCY: At the end of all new areas of pavement.
Final Slab/Sidewalk Inspection
WHEN: After the final placement of concrete and saw cuts are made.
FREQUENCY: At the end of all new areas of concrete.
Drainage and Utilities
Please note that if the Engineer is not contacted for the required inspections (site observations) he may not be in the position to certify the project.
Drainage Pipe Joints & Structures Inspection
WHEN: Just prior to trench backfill.
FREQUENCY: ALL pipe joints and connection to structures shall be exposed and observed prior to backfill.
MATERIALS NEEDED: Personnel to expose full circumference of the pipe and observe beneath filter fabric wrapping.
Water/Sewer Pipe Joints Inspection
WHEN: Just prior to trench backfill.
FREQUENCY: ALL pipe joints shall be exposed and observed prior to backfill. Pipe restraints shall be installed where required.
MATERIALS NEEDED: Personnel expose full circumference of the pipe.
Other Inspections
Under Construction
Please note that there shall be additional inspections required for municipalities and governmental agencies.