2010 Construction and Material Specifications - Ohio Department of ...

623.03
at points along the line so that at least two of the stakes can be seen distinctly from
any point on the line. Before beginning construction, stake Right-of-Way lines at
locations where construction is to be performed. The Engineer will not require the
Contractor to set additional stakes to locate a utility line that is not included as a
pay item in the Contract, or to determine the property line between the properties.
The Contractor may elect to perform portions of this work by electronic
methods. Submit a plan of action to the Engineer detailing the means and methods
to produce the desired results. After the plan of action is approved, layout the first
1000 feet (300 m) of the project by conventional methods. The Department will
evaluate the first 1000 feet (300 m) using electronic methods to verify the accuracy
of the equipment. Ensure that the accuracy of the electronic methods are within 2
percent of the conventional methods.
Once the accuracy of the electronic methods is established, use the conventional
methods to set every 1000 feet (300 m) of the project measured along the
centerline. A ground control point is required for every structure, and a print out
of the work is required for every 200 feet (60 m) of the project.
If the electronic methods are found to be out of the above tolerance, submit a
plan of action to correct the problem. If the problem persists, return to
conventional methods.
The Contractor is responsible for having the finished Work conform to the lines,
grades, elevations, and dimensions shown on the plans. Any inspection or
checking of the Contractor’s layout by the Engineer and the acceptance of all or
any part of it does not relieve the Contractor of the responsibility to secure the
proper dimensions, grades, and elevations of the several parts of the work.
Exercise care in the preservation of stakes and benchmarks, and reset them at no
additional cost to the Department when any are damaged, lost, displaced, or
removed. Use competent personnel and suitable equipment for the layout work
required and that a Registered Engineer or a Registered Surveyor supervises the
operation. Do not engage the services of any person or persons employed by the
Department for the performance of any of the work covered by this specification.
Verify survey information shown on the plans, except for the centerline of the
project, which may be use to lay out the Work.
The removal of layout stakes at the completion of the Work is a final cleanup
item that is required as a condition of full payment of 624 Mobilization.
623.03 Basis of Payment. The Department will pay for accepted quantities at
the contract price as follows:
Item Unit Description
623 Lump Sum Construction Layout Stakes
624.01 Description
624.02 Limitation
ITEM 624 MOBILIZATION
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