Drawing of Sufficient Detail (DOSD) Answer to DOSD 105 IAC 13-3-3(c)6 states that the Work Plan shall include the following A drawing of sufficient detail and scale to show the proposed location of the facility relocation. ThusDetailed, Scaled & shows Relocation 2
Example 1 (not too helpful) Hand drawn lines and vault? no annotation station, offset, elevation? Is it drawn to scale? Importance to identify items on plans. 3 Example 2 (more helpful) 5
Example 3 (most helpful) Plan view shows station, offset, and elevation Proposed utility pipeline has been drawn to scale to prove/show it is correctly being relocated. 6
Example 3 (continued) Cross Section - Proposed utility pipeline has been drawn to scale to prove/show it is correctly being relocated and out of conflict with the proposed project. In this case, the pipeline utility was going to perform this work prior to the Contract being Let and was not keen to hiring a surveyor so they/we were trying to identify the
depth below the existing ground (must be very careful when dealing with depth). We had to verify that the plans existing ground (surveyed 8 years prior) still matched the in-the-field conditions. Once that was confirmed, then there was confidence that a depth of 8 ft at the proposed R/W would be Purpose of DOSD?
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. Establish Everyone knows where everyone goes in engineering/ construction terms! X,Y, Z and time 7
Components #1 #1 - Must use the INDOT Plans INDOT Plans refers to the use of the design alignment, stations profile, construction Provides a consistent base line that everyone limits, right-of-way. is working from. This is the only way that
anyone looking at the drawings can see if the relocation plan addresses all of the conflicts. 8 Component #2 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
Must be drawn to scale with corresponding annotations Station, Offset, Elevation! Keep in mind.. Does everyone have Adobe Pro? Everyone know how to set a scale in Adobe prior to drawing? Adobe Reader DC (newest version April 2015) - support website says you have access to the measure tools if original PDF creator enabled the measurement tools. Adobe XI (current version @ INDOT) 9 Component #3 Uses the project alignment for Stations and Offsets, noting:
Poles, anchors, and guy wires Fire hydrants, valves, THRUST BLOCKS! Crossing Station only unless termini are in the right-of-way. Vaults, hand holes, manholes more than symbols on the plans drawn to scale X, Y, Z Bore Pits real construction dimensions Control cabinets, pedestals
Crossing Station if not perpendicular to the alignment, then an angle should be provided 10 Drawing of Sufficient Detail #3 Uses the project alignment for Stations and Offsets Hand drawn?...Be careful here - is it to scale? Are the annotated dimension and drawn items the real outside dimensions? Plan view scales are typically 1 inch = 20 ft or
smaller scales which makes drawing items by hand less than 10 feet very tricky or inaccurate. When control is critical due to other sensitive items in the area, verify it by using CADD! 11 Component #4 Provides Elevations For all underground facilities Maximum elevation at top of facility when under pavement, structure, or ditch Minimum elevation at bottom of facility between facilities or
proposed project construction Not _?_-feet below gradewhich grade? 12 Component #4 - continued Provides elevations This is the only way that anyone looking at the drawings can see if the relocation plan addresses all of the conflicts. 13
Proposed facilities Existing facilities Retired facilities Existing facilities to remain Existing facilities to be removed 14 Component #5 continued Provides cross sections showing facilities
15 Component #6 Method of installation Direct Bury estimated construction room Bore Pits approximate size (W x L x D) and locations Type and size of pipe to be installed Any critical clearances needed Note any areas of concern or special need Examples: Holding a pole, holding/protecting a conduit bank,
etc. 16 Component #6 continued Method of installation 17 Importance of DOSD? Must know WHERE the facility will be as it relates to the proposed design
Must know if required clearances are met Must know environmental commitments have not been compromised Must know potential constructability issues Must know facilities are within proposed ROW Must know if conflicts with other relocations 18 Plan Interaction Process What if Utility Cant do DOSD?
Some utilities dont have the personnel, expertise or experience to produce a DOSD Meet live if possible Do it with them Recommend hiring a consultant
If we must, do it for them Include in the Risk Report to the PM Escalate to the Authorized Rep and/or OSA 20 What if Utility Wont do DOSD? Some utilities refuse to provide a Drawing of Sufficient Detail Identify why they will not provide a DOSD Escalate to the next level at the utility Escalate to INDOT OSA who will escalate to Director if
necessary Document EVERYTHING Include in the Risk Report to the PM 21 What if Utility Wont do DOSD? 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
22 A Few Notes The rule does NOT make clear what is a Drawing of Sufficient Detail Utilities may have a different perspective or definition of DOSD Utilities have not received training on what is expected on DOSD Work with the utilities to achieve a DOSD
23 Benefit to Utility Coordinator? Changes in DRAWINGS of SUFFICIENT DETAIL: Everyone knows, where everyone goes! No Surprises during INDOT construction Assurance any required relocations only occur once
You, each utility company, and the Designer are all speaking the same language 24
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