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Item 1.F.
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| City Council Regular | |
| Date: | 11/10/2025 |
| Title: | W.O. 19-12, West End Reservoir Project: GC/CM Contract Change Order No. 7, Site Clearing & South Material Haul |
| Presented by: | Debi Meling |
| Department: | Public Works |
| Presentation: | No |
| Legal Review: | Not Applicable |
| Project Number: | N/A |
RECOMMENDATION
Staff recommends that the City Council approve Change Order No. 7 to the Standard Agreement and General Conditions Between Owner and General Contractor/Construction Manager (Construction Contract) with Dick Anderson Construction, Inc. for the W.O. 19-12: West End Reservoir Project in the amount of $779,887.57.
BACKGROUND (Consistency with Adopted Plans and Policies, if applicable)
On December 11, 2023, City Council approved a Construction Contract with DAC for the West End Reservoir Project in the amount of $153,211.35. This initial contract Guaranteed Maximum Price (GMP) allowed the Project Team to begin dewatering the reservoir site through rental of temporary pumping equipment and purchase of permanent dewatering equipment. Change Order No. 1 for the procurement of an electrical equipment substation for the Raw Water Pump Station (RWPS) for a GMP of $408,352.64 was approved by City Council on August 26, 2024. Early procurement of this equipment ahead of construction was necessary to maintain overall project schedule due to the 40-week lead time in delivering the project site. On November 25, 2024, City Council approved Change Order No. 2 for the construction of the BBWA Raw Water Delivery (RWD) Facilities in a GMP amount of $13,553,020.76. Work includes construction of a BBWA Unloader Structure, Screen Structure, Diversion Channel, Raw Water Pump Station (RWPS), a Canyon Creek Diversion Structure, gravel access roads, and 36, 42, and 60-inch connecting piping. Change Order No. 3 for dewatering pumping improvements for a GMP of $165,070.04 was approved by City Council on December 16, 2024 and allowed for construction of pumping systems that enabled more efficient winter operations and continuous dewatering of the north reservoir site. On January 27, 2025, City Council approved Change order No. 4 in the amount of $2,168,482.86 to clear a portion of the future north reservoir cell, remove refuse, and install 5,000 linear feet of permanent dewatering drain pipe. Exploratory excavation located buried concrete and confirmed depth to shale. Material excavated to install the dewatering pipe was placed in lifts adjacent to the dewatering trench to 10-12 feet above grade for future installation of WEWTP Zone 3 water transmission main. Change Order No. 5 to install electrical equipment for BBWA RWD Facilities, haul approximately 500,000 cubic yards of material from the City’s north reservoir site to Knife River property, and procure 2 large concrete box culverts and various lengths of FRP pipe for a GMP of $6,102,529.48 was approved by City Council on May 27, 2025. On July 14, 2025, City Council approved Change Order No. 6 in the amount of $2,011,727.93 to remove a 175’ long section of Hesper Road to a maximum depth of 35’ to install five large diameter utilities (24” to 48”) and 6’ x 5’ and 8’ x 8’ box culverts. This change order also procured additional 36”, 42”, and 48” FRP pipe, valves, and fittings to enable isolation and independent operation of the north and south reservoir cells. Change Order No. 7 now under consideration includes clearing the City’s South Reservoir site, removing trash, burning slash piles and hauling approximately 100,000 cubic yards of material to the Knife River property east of the north reservoir site. The City will have excess material on the south reservoir site, and Knife River would like additional material to spread on their property. The hauling cost per cubic yard is higher than the north reservoir haul cost due to the increased distance for hauling from the south reservoir site. The haul distance is approximately twice the haul distance when compared to north reservoir haul distance. The increased haul distance accounts for the increased cost when compared to the north reservoir material hauling cost. |
ALTERNATIVES
City Council may:
- Approve Change Order No. 7 to the Standard Agreement and General Conditions Between Owner and General Contractor/Construction Manager (Construction Contract) with Dick Anderson Construction, Inc., or,
- Not approve Change Order No. 7. If Council does not approve this change order, the City will need to identify an alternate location to haul excess material from the south reservoir site.
FISCAL EFFECTS
The W.O. 19-12: West End Reservoir Project was budgeted in FY26 using Water Funds in the amount of $73,000,000. Considering previously encumbered funds of $21,261,635 and this change order in the amount of $779,887.57, there is approximately $51 million remaining in the budget.