With the 2013
C&MS, all survey monuments were moved to this section from the 2010
C&MS Section
604.
All surveying work related to
locating and setting reference monuments, Right-of-Way monuments, and setting
steel rods in monument assemblies must be performed under the direction of a Registered Surveyor.
According to the Ohio Revised Code, a Registered Surveyor must
perform the work associated with property boundaries. Either a Registered Surveyor or Registered Engineer can
supervise other surveying work to set project control and construction layout
stakes.
Before beginning any
construction activities that might disturb existing survey monuments, the
Contractor must have a Registered
Surveyor verify the location of existing survey monuments that are listed
in the Contract Documents. The Registered Surveyor must
prepare a report and submit it to the Engineer and District Survey Operations
Manager. If the Contractor submits the
verification report to only the Engineer, then send a copy to the District
Survey Operations Manager. If the
Surveyor finds any survey monuments not listed on the Contract Documents, the
surveyor must survey their location and include them in the verification
report.
The Right-of-Way designer
will include quantities for proposed monument assemblies and reference
monuments in the Right-of-Way plans.
Also, the Right-of-Way designer will include quantities to replace any
survey monuments that are located within a temporary easement and that they
expect the Contractor to destroy during the work. The Contract Documents should include pay
items to replace any survey monuments that the Contractor can’t help but
destroy during the progress of the work.
However, the Contractor may also destroy or damage survey monuments due
to carelessness or inattention. The
Contractor must replace these survey monuments at no cost to the
Department. If the Department ends up
having to replace survey monuments that are damaged by the Contractor, then
deduct all costs incurred by the Department from the Contractor’s estimate.
In some cases, the Contractor
will not have to replace an existing survey monument when it is destroyed as a
result of the work. For example, when
the Department is acquiring additional Right-of-Way, the old Right-of-Way
monuments will be abandoned and do not need to be replaced. This is why the phrase, “unless directed
otherwise by the Engineer,” is included in the sentence, “Restore survey
monuments damaged or destroyed by construction activities, unless directed
otherwise by the Engineer.” Contact the
District Survey Operations Manager if there are any questions.
When the Contractor sets new
survey monuments, they or he/she must have a Registered Surveyor
prepare a report similar to the verification report. The Contractor submits this report to the
Engineer and District Survey Operations Manager. If the Contractor submits the verification
report to only the Engineer, then send a copy to the District Survey Operations
Manager. Refer to Standard
Construction Drawing RM-1.1 for details about the different types of survey
monuments.
Contractors use global
positioning methods to perform construction control on many projects. If a pay item for providing electronic
instrumentation is provided in the Contract Documents, then the Contractor
provides one GNSS receiver for the project staff to
use for verifying locations and elevations.
GNSS stands for Global Navigation Satellite
System. It is like the Global Positioning System (GPS) but includes satellites
run by countries other than the United States.
For large projects, the Contract Documents may include an, “as per plan,”
item that requires the Contractor to provide two or more GNSS
receivers. The Contractor must also
provide training to use the equipment and provide technical assistance
throughout the project duration. At the
end of the work, the equipment is returned to the Contractor.
If the District decides to
use its own GNSS receivers to inspect the work, the
Contractor must still provide the model files that the Contractor is using to
perform the project control. However, in this case, there is no guarantee that
the model files will work with the District’s equipment. The District may have to convert or translate
the files.
1. Verification report for all existing survey monuments.
Must be signed and sealed by a Registered Surveyor.
2. Report giving the coordinates, station, offset, and
description of each new or replaced survey monument. Must be signed and sealed
by a Registered Surveyor.
3. Copy of the construction layout notes for each portion
of the work.