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

622.09
622.09 Basis of Payment. The cost of all inserts, sleeves, fittings, connectors,
reinforcement, dowels, preformed filler, excavation, and backfill is incidental to
these items.
The Department will pay for accepted quantities at the contract prices as
follows:
Item Unit Description
622 Foot (Meter) Concrete Barrier, Type ___
622 Foot (Meter) Portable Concrete Barrier, ___" (___ mm)
622 Foot (Meter) Portable Concrete Barrier, ___" (___ mm)
Bridge Mounted
ITEM 623 CONSTRUCTION LAYOUT STAKES
623.01 Description
623.02 General
623.03 Basis of Payment
623.01 Description. This work consists of furnishing, placing, and
maintaining construction layout stakes necessary for the proper prosecution of the
work under the contract and removing all stakes at the completion of the project.
623.02 General. The Department will locate and reference to either
strategically placed Project Control Monuments and Project Geometric Layout
Coordinate data or Centerline of Construction points with 3 point reference ties as
shown in the plans. The Department will establish benchmarks along the line of
the improvement outside construction limits. The Department will establish one
benchmark for use at each structure with a span greater than 20 feet (6.1 m). The
Department will not locate the centerline of short street intersection returns.
Locating and referencing the centerline consists of locating and referencing control
points such as point of curve, point of tangent, and sufficient points on tangent to
provide a line of sight. Establish reference points outside the construction limits in
such a manner that they will be available to reestablish the control points at any
time during the course of the work. The Engineer will identify to the Contractor
control points set by the Department and will keep the field notes in the field
office.
Furnish field forces and set all additional stakes for the project, including
interchanges, that are needed to establish offset stakes, reference points, slope
stakes, pavement and curb line and grade, stakes for bridges, culverts, sewers and
drainage structures, paved gutters, walls, monuments, fence, Right-of-Way lines,
and any other horizontal or vertical controls, including supplementary benchmarks,
necessary to secure a correct layout of the work. Determine the location of slope
stakes for grading work by a calculation method, and make a copy of these
calculations available to the Engineer for the project records. Set stakes for the
line and grade of pavement and curb at sufficient station intervals but not
exceeding 50 feet (20 m) to ensure conformance to plan line and grade. Staking of
Right-of-Way lines consists of placing tall stakes, properly identified and readily
discernible, at points of change in width or direction of the Right-of-Way line and
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