Anchor Bolt Plan Verification Inspection

Field verification inspection to confirm anchor bolt pattern, sizes, projection, and dimensions on the anchor bolt drawing match the base plates and frame layout before setting or casting. Helps prevent field setting errors and installation non-conformance.

Inspection Record and Drawing Control

• Project, building line, and foundation area identified
  Record the project name, building line, bay, grid, or foundation area being inspected.
• Anchor bolt drawing revision matches approved documents
  Verify the anchor bolt plan revision matches the latest approved structural drawings and base plate details.
• Related base plate and frame layout documents available on site
  Confirm the anchor bolt plan, base plate details, and frame layout drawings are available for field comparison.
• Inspector and date recorded
  Enter the inspector name, company, and inspection date/time.

Anchor Bolt Pattern and Grid Layout

• Anchor bolt pattern matches plan view layout
  Verify the number of bolts, spacing, and arrangement match the anchor bolt drawing and base plate layout.
• Bolt locations align with structural grid lines and column centerlines
  Confirm bolt locations are set to the correct grid lines, centerlines, and offsets shown on the approved drawings.
• Measured bolt-to-bolt spacing
  Record the measured spacing between anchor bolts and compare to the drawing dimension.
• Measured bolt offset from grid or centerline
  Record the measured offset from the specified grid line or centerline.

Bolt Size, Projection, and Embedment

• Anchor bolt diameter matches drawing
  Verify the installed anchor bolt size matches the specified diameter on the anchor bolt plan.
• Anchor bolt projection above concrete matches required dimension
  Measure the exposed bolt projection above finished concrete and compare to the required projection.
• Anchor bolt embedment or hook configuration matches detail
  Confirm embedment depth, hook, bend, or anchorage detail matches the approved anchor bolt drawing.
• Bolt threads, nuts, and washers are present where required
  Verify required hardware is installed and usable for base plate installation.

Base Plate and Frame Compatibility

• Base plate hole pattern matches anchor bolt layout
  Confirm the base plate hole pattern, spacing, and orientation match the installed anchor bolt pattern.
• Column or frame member can be set without interference
  Verify there is adequate clearance for the frame member, base plate, and leveling hardware to be installed without field modification.
• Anchor bolt projection supports nut, washer, and grout allowance
  Confirm the exposed projection allows for the required nut engagement, washer thickness, and grout or leveling allowance.

Deficiencies, Evidence, and Closeout

• Deficiencies documented with location and corrective action
  Record any non-conformance, the exact location, and the corrective action required before release.
• Photo evidence captured for discrepancies or critical measurements
  Attach photos showing layout, measurements, and any observed deficiency.
• Inspection signed off by responsible party
  Signature of the inspector or responsible verifier confirming the inspection results.