824 - Construction Surveying and Staking
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GENERAL DESCRIPTION
Engineer Responsibilities
The Engineer is always responsible for the requirements listed in 824.03A. The Engineer must review the requirements of each staking item for approvals and verifications as necessary for each staking task If the contractor staking pay item is not included in the project, then the Engineer is also responsible for work as defined in 824.03 C - 824.03R. The Engineer should contact the Contractor to verify the Engineer staking tasks based on the contract needs. If deviating from section 824.03A staking intervals, document the revisions with the Contractor.
Contractor Responsibilities
If the contractor staking pay item is included in the project then the Contractor is responsible for work as defined in 824.03B - 824.03W.
Definitions and Terms
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General Overview
Control Verification & Establishment
The Engineer is responsible for verifying horizontal and vertical control prior to the start of construction. Control verification and establishment activities should be documented. An example control summary form and control verification table are listed below. Additional control may be required depending on other contract special provisions, for example, the Special Provision for Automated Machine Guidance.
Insert summary form and control verification table:
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Contractor Prequalification
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MATERIALS
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EQUIPMENT
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Description of Equipment Used
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Equipment Specifications
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Pictures of Equipment
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PRECONSTRUCTION
Submittals
Contractor Staking Quality Control Plan (CSQC)
The contractor quality control plan is an important communication tool that identifies key contacts, quality control procedures, documentation methods, equipment certification, staking tolerances, and field equipment check procedures.
CONTRACTOR STAKING QUALITY CONTROL PLAN
CONTRACTOR STAKING QUALITY CONTROL PLAN
CSQC Quality Control Staff
- The licensed professional surveyor named in the quality control plan should be the individual responsible for providing professional oversight of the staking activities. This person does not need to serve as the plan manager or site contact, but may do so if appropriate.
CSQC Equipment Calibration
- Copies of equipment certification for levels, transits, lasers, and total stations should be provided to the Engineer. Equipment should be calibrated at a minimum on an annual basis and as needed throughout the project. Field checks should be performed and documented.
CSQC Equipment Certification
Provide equipment calibration certification documentation for levels, transits, lasers, and total stations. Calibration certifications must be completed by a third-party verifying that equipment meets the accuracy requirements as specified by the manufacturer.
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CSQC Onsite Field Equipment Checks
Check and test equipment prior to use and per manufacturer’s specifications. Perform additional checks if equipment accuracy becomes questionable due to impacts, environmental conditions, or observed inconsistencies.
- Method of Field Verification Perform field checks in accordance with the Design Survey Manual and the Survey Standards of Practice procedures and manufacturer-recommended methods applicable for the equipment used. Document all verification activities, including the method, readings, and adjustments made during the project and provide to the Engineer.
- Documentation Submit field verification records to the Engineer. Records must include:
- Date of field verification
- Equipment type, model, and serial number
- Verification method used
- Recorded readings and any adjustments
- Confirmation of compliance with tolerance limits
CSQC Non-Compliant Equipment
Remove equipment immediately from service if it is found to be out of tolerance during checks. Recalibrate and recertify the equipment before returning to service. Notify the Engineer and provide recalibration and recertification documentation.
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Permits
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Qualified Products List (QPL)
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Plant Inspections
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Contractor Submitted Plans/Procedures
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CONSTRUCTION
Construction Requirements/Procedures/Installation Methods
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Safety
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Productivity information/charts
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Items of Note
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Layout / Survey
Use of Automated Machine Guidance (AMG)
The following information will serve as guidance for the administration of projects that incorporate the Special Provision for Automated Machine Guidance (AMG). The documentation is specific for AMG projects and supplements information for the Engineer in the special provision for the administration of AMG work. These procedures apply to all federal and state funded projects that use the AMG process.
INSPECTION & TESTING
Inspection Procedures
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Special Attention Areas
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QA/QC Tests
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Lab Testing / Field Testing
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Rejection/Remedial Actions=
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MEASUREMENT, DOCMENTATION & PAYMENT
Measurement
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Documentation Requirements
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Basis of Payment
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LOCAL AGENCY PROJECTS
Only if applicable
RAIL PROJECTS
Only if applicable
CONSTRUCTION
Use of Automated Machine Guidance (AMG)
The following information will serve as guidance for the administration of projects that incorporate the Special Provision for Automated Machine Guidance (AMG). The documentation is specific for AMG projects and supplements information for the Engineer in the special provision for the administration of AMG work. These procedures apply to all federal and state funded projects that use the AMG process.