actual geodetic datum (not assumed datum) or the VA Station
Bench Mark.
Produce the Topographic/Landscape, Electrical, and
Civil/Mechanical Surveys on VA standard size mylar sheet as
specified in the Architectural Design Manual. CERTIFY on
drawings that all information was obtained or verified by
actual field investigation. Provide surveys at an engineering
scale not less that 1:400 (1" = 30').
B.
Final Schematic, Design Development, and Construction phase
documents shall be based on these surveys. Prepare the Design
Development phase and ensuing design drawings at the same
engineering scale as the surveys. Show detail layouts at a
scale sufficient to indicate the required work.
C.
At each design phase review, resubmit the survey documents and
include them with the bidding documents (See VA Design and
8.2
On the Topographic/Landscape Survey, include features affecting
site development, such as:
A.
Contours at a maximum interval of 500 mm (two feet),
B.
Location and elevation of all roads, walks, underground and
over head utilities, existing buildings and structures,
C.
All property lines, building line set-backs, leases, or
easements, and
D.
Trees, and landscape material with size and species
identification.
8.3
On the Electrical Survey, include the locations of all
underground, overhead, and surface electrical utilities and
structures. Show size, depth, and top elevation of all electrical
structures, based on actual site investigation. Indicate type of
service (primary or secondary), number of ducts, voltage, phase
and other electrical data.
8.4
On the Civil/Mechanical Survey, include the locations of all
underground and surface civil and mechanical utilities and
structures. Show size, depth, invert and top elevation of all
utility structures, based on actual site investigation. Indicate
direction of flow and size of pipe for all sewers, drains, and
connecting lines between manholes.
8.5
Include a Soil Survey as part of the Structural requirements for
subsurface investigation in the A/E Submission Instructions,
PG-18-15 (Schematics 2). Analyze the soil fertility, organic
content, and pH measurement. Reference AASHTO-T-86 and local
District Office of the U.S. Soil Conservation Service Standards
for procedures in obtaining the above information. Utilize
results from the study to make design decisions including:
A.
Earthwork handling techniques such as benching, compaction,
and erosion control.
B.
Selection of pavement type and cross section.
C.
Selection of soil amendments.
D.
Selection of landscape materials.
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