Construction Bulletin Number 14
 
Subject: Payment for Supplemental Surveying
Category: Roadway & Structures
Issued: December 11, 2002
Contact Person: Warren F. Walker, PE
Phone Number: (252) 491-5411 
E-mail Address: wwalker@dot.state.nc.us 
Issue Details:  
The measurement of supplemental surveying is described in Article 801-3. Article 104-3 allows the Engineer to alter the plans or details of construction with the Contractor agreeing to perform the work as altered at their lump sum price unless otherwise provided. This Article further requires that an alteration of the plans must materially change the character and cost of the work prior to considering the alteration as extra work.

Additional survey work on existing line items within the original project scope, should not be considered "Supplemental Surveying". When "Extra Work" is negotiated, the Resident Engineer may consider additional surveying as "Supplemental Surveying" and either pay the contract unit price or negotiate the cost of the surveying as an itemized portion of the line item. Surveying required for existing lines items which exceed the thresholds established in Article 104-5 may be negotiated by the Resident Engineer where an increase in unit price is warranted. Travel time to and from the project is non-compensable. All other additional surveying is considered a portion of the Lump Sum price for "Contract Surveying".
 
 

Examples:

  1. During the construction of an urban widening project, several turn lanes were added, altering the original scope. The project had already been staked in accordance with the plans. The revised turn lanes did not result in overruns to existing items exceeding Article 104-5 thresholds. However the addition of full turn lanes did result in additional fine grading and the surveyor was required to re-stake a portion of the project. Therefore, the additional surveying is "Supplemental Surveying".
  2. During the construction of a curb and gutter widening project, the curb and gutter is extended to drain a low point. The need for an additional drainage structure is noted and included on the drainage system survey. The surveying necessary for the additional curb and gutter and drainage structure is not "Supplemental Surveying".
  3. Pipe sizes are changed after the original drainage system survey is accepted and staked, to account for adjacent development which was not in the original plan. The change required additional topographic surveys and a revision to the drainage system survey and re-staking. This is "Supplemental Surveying".
  4. An outfall pipe size is changed by the Resident Engineer. The revised pipe will be laid on the same grade with the same invert elevations. The revision requires a new line item. "Supplemental Surveying" should not be considered a part of that new line item unless investigative work is required downstream due to the change.
  5. While slope staking, the surveyor determines the plan grade line will not work. The Resident directs the Contractor to revise the grade line. In order to complete the revision, the surveyor must profile the existing road for a distance in excess of 100 feet. This is "Supplemental Surveying".
  6. The surveyor is required to return to the project when an underground utility is encountered which is in conflict with the proposed drainage system. The specifications require the surveyor to "consider the utilities’ locations and elevations in the layout of the drainage system(801-2F1). Furthermore, restaking or additional staking required to conform with the approved drainage layout drawing is considered incidental to the work"(801-2F2). Returning to the project to correct this oversight is not "Supplemental Surveying". If additional drainage structures or pipe are required, that would not have been necessary if the conflicting utility had been located and designed around, the Resident Engineer should consider not paying for the additional quantities of drainage work that have been made necessary by the surveyor’s failure to adequately investigate underground utilities.

 

References: 2002 Standard Specifications - Section 801

This Construction Bulletin has been issued by the NCDOT Construction Unit to clarify, discuss, interpret and provide guidance for contract administration issues related to NCDOT construction contracts.