Memorandum

City of Lawrence

Utilities Department

TO:	David L. Corliss – City Manager Cynthia Wagner – Special Projects Manager Diane Stoddard – Assistant City Manager Casey Toomay – Assistant City Manager
FROM:	Leah Morris – Project Engineer
CC:	Dave Wagner – Director of Utilities Mike Lawless – Deputy Director of Utilities Philip Ciesielski – Assistant Director of Utilities Beth Krishtalka – Assistant to the Director Bob Brower – Utilities Operations Superintendent
DATE:	June 25, 2014
RE:	Agenda Item – Project UT1205 South Lawrence Trafficway Change Order #6 – 12” Water Main Relocation

Background

The South Lawrence Trafficway is currently under construction by Emery Sapp & Sons the general contractor for the Kansas Department of Transportation.

Required watermain and sanitary sewer relocations in the area of 31^st and Haskell were designed and bid as part of the KDOT SLT project due to the required construction sequencing in this area. The construction of these relocations will be paid for by the City of Lawrence.

Project Status

During the construction of the 12” watermain located northwest of 31^st and Haskell (see attached map), a 4” Black Hills Energy gas main was encountered.  This gas line was relocated as part of the SLT relocations, and was installed in such a way that it conflicted with the alignment of the relocated waterline.

Due to scheduling conflicts, Black Hills could not relocate the gas line in a timely manner that wouldn’t delay SLT construction.  The resolution of this conflict was to hand dig around the gas line, and shift it as far west as possible in order to obtain horizontal separation between the gas line and the watermain. Due to hand digging around this gas line, Emery Sapp is requesting additional costs associated with this work.  As outlined in the attached letter from ESS, they have provided a cost of $29,225.30 for the performed work.  Black Hills Energy has committed to paying for half of these incurred costs ($14,612.65).

Construction Contract Costs:

Original Contract – 31^st and Haskell Watermain	$330,000.00
Original Contract – 31^st and Haskell Sanitary	$580,000.00
Change Order #5 – Additional Sanitary Manhole	$7,399.21
Change Order #6 – 12” Watermain	$29,225.30
Current Contract Total	$946,624.51

To date cost adjustments are 4.02% of the original contract amount.

Action

Authorize the City Manager to execute Change Order #06 to the construction contract with Emery Sapp & Sons for project UT1205, South Lawrence Trafficway Sanitary Sewer and Watermain Relocations increasing the contract amount by $29,225.30.