Drawings of Sufficient Detail
Natalie Parks, P.E.Utility & Railroad CoordinatorAmerican Structurepoint, Inc.
January 22, 2014
Introduction… What is a drawing of sufficient detail? What is the purpose of a drawing of
sufficient detail? What are the components of a drawing of
sufficient detail? Why is a drawing of sufficient detail
important? What happens when a utility cannot or will
not produce drawings of sufficient detail?
Question…
What is a drawing of sufficient detail?
Answer…
105 IAC 13-3-3(c)6 states that thework plan shall include the following…
“A drawing of sufficient detail and scale
to show the proposed location of the facility relocation.”
Answer…According to the rule, the answer is…
Detailed Scaled Shows proposed facility relocation
Example 1
Let’s Discuss…
Looking at the rule’s definition, is this drawing a drawing of sufficient detail? Is this drawing detailed? Is this drawing to scale? Does this drawing show what the
proposed relocation is?
Example 2…
Let’s Discuss…
Looking at the rule’s definition, is this drawing a drawing of sufficient detail? Is this drawing detailed? Is this drawing to scale? Does this drawing show what the
proposed relocation is?
Question…
What is the purpose of the drawing?
Answer…
To enable the utility coordinator and design staff to determine if the proposed facility relocation will resolve all known facility conflicts with the proposed design without causing additional conflicts with other utilities’ facilities or with the project.
Let’s Discuss…
Which drawing assists you in achieving the purpose and need for a drawing of sufficient detail?
Why?
Question…
What are the components of a
drawing of sufficient detail?
Drawing of Sufficient Detail Must use the INDOT Plans
“INDOT PLANS” REFERS TO THE USE OF THE DESIGN PROFILE,
ALIGMENT, STATIONS, RIGHT-OF-WAY.
Drawing of Sufficient Detail How can they be submitted?
May mark up the PDF provided by the Designer
May mark up a hard copy provided by the Designer
May provide a CAD file that uses the Base files as provided by the Designer
May provide a pdf of plans on their title block
Drawing of Sufficient Detail Uses the project alignment for
stations and offsets Poles, anchors, and guy wires Fire hydrants Crossings-station only unless termini are
in the right-of-way Vaults, hand holes, manholes Bore Pits Control cabinets, pedestals
Drawing of Sufficient Detail
Provides elevations For all underground facilities Maximum elevation at top of facility
when under Pavement, structure, ditch Minimum at bottom of facility between
facilities NOT x’ below grade – which grade?
Drawing of Sufficient Detail Provides cross sections showing
facilities Distinguishes between:
Proposed facilities Existing facilities Retired facilities Existing facilities to remain Existing facilities to be removed
Distinguishes between aerial and underground
Drawing of Sufficient Detail Method of installation
Direct Bury Bore
Type and size of pipe to be installed Any critical clearances needed Notes any areas of concern
especially to facilities remaining in place EX. – holding a pole, holding a pipe, etc.
Drawing of Sufficient Detail Helpful hints…
Develop a checklist to use while reviewing drawings to ensure minimums are provided
Best Practices list developed by INDOT
A Note about “abandoning facilities” A utility may not abandon their facilities They may “retire in place” The may designate a facility as being
“temporarily out of service.” For either of the above designations we
should place a red “X” over the facilities
Drawing of Sufficient Detail
CAD files versus PDF versus Hard Copy
Some utilities will request CAD files Ask what platform and version is used Many consultants will ask for an
electronic file transfer agreement – check with your company to determine if this is required.
Some utilities will mark up a pdf This is okay if they provide the
necessary detail Some utilities request hard copies
Drawing of Sufficient Detail
Question…
Why is a drawing of sufficient detail
important?
Answer… Must be able to determine WHERE
the facility will be as it relates to the proposed design
Must be able to determine if required clearances are met
Must be able to ensure environmental commitments have not been compromised
Answer… Must be able to identify potential
constructability issues Must be able to ensure that facilities
are within proposed right-of-way Must be able to verify and/or identify
conflicts with other facility relocations
Question…
What happens when a utility cannot or will
not produce drawings of sufficient detail?
Answer… Some utilities do not have the
personnel, expertise, or experience to produce a drawing of sufficient detail Let the project manager know Include in the risk report Meet with a representative on site Discuss the specific issues related to the
need for relocation Discuss options for relocation Determine if there is any way to include
the relocation in the project
Answer… Some utilities refuse to provide a
drawing of sufficient detail Let the project manager know Include in the risk report Meet with a representative on site Identify why they will not provide a
drawing Review the plans with the utility
representative and work together to determine with the best of our ability the station and offset of the facility
Provide minimum elevations if necessary
Answer… Try to gain concurrence from the
utility representative when providing the station, offset, and elevation
Contact a supervisor at the utility if cooperation is still not achieved
Document EVERYTHING
Note… The rule does NOT make it clear what
a “drawing of sufficient detail” is. Utilities may have a different
perspective or definition. Utilities have not received training on
what is expected. Work with the utilities to achieve a
drawing of sufficient detail.
Questions?
Thank you!