Hillcrest Storage Tank Replacement

Construction Update: March 9, 2017

Vault Work on Access Road Behind S. Hillcrest Drive

Saturday and Sunday work planned through the end of March. Crews will be working at the excavation sites on the access road behind S. Hillcrest Drive) on Saturdays and Sundays through the end of March. We are upgrading the vault that houses a major pipeline connection between the Hillcrest facility and the rest of the distribution system. We have lower demands on the water system in March so the pipeline inside this vault has been shut off in order to complete these improvements. However, we are under a tight deadline to finish this work so that the pipeline can be turned back on to meet the increase in demand on the distribution system that comes with the start of irrigation season in April. Saturday and Sunday work hours will be consistent with regular weekday hours 7 a.m. – 6 p.m. The access road will remain closed to site traffic which will be re-routed to the east side of the property.

Tank Wall Construction

Concrete placement has begun for the walls of tank #1 (on the S. Hillcrest Dr. side of the property) and is expected to begin for tank #3 (Canyon Club Condo side of the property) mid-March. Wall placement will occur throughout the week for the next couple months. These concrete placements require far fewer trucks (approximately 7-8 concrete trucks/day) and cubic yards of concrete. Saturday placement may be an option but is not required or planned for wall placement work at this time. There are 18 wall sections per tank. The walls are 30 feet from the floor of the tank and about 10 feet tall if you are looking at them from the sidewalk.

Construction hours. General work hours (outside of the concrete placement days) are 7 a.m. – 6 p.m., Monday – Friday. Saturday work will continue to be an option that our contractor, MWHC, will retain and use when necessary to keep the project on schedule or at times when the additional work could result in condensing the overall construction timeline. Saturday work hours will be consistent with weekday hours 7 a.m. – 6 p.m.

Questions? Contact Katie Knoll, Denver Water Public Affairs, 303-628-6117, or Katy Perrino, MWHC, PR and Communications, 720-984-4011. Community members can also stay up to date at NextDoor.com.

Building Hillcrest Reservoir section of northwest wall in Basin No. 2, 1959Denver Water developed the Hillcrest water storage facility in the early 1960s to replace several small, temporary pumping stations and therefore improve the ability to reliably serve the burgeoning population of southeast Denver.

Crews finished building Hillcrest’s two 15-million-gallon concrete water storage basins in 1960 and completed the pumping station four years later. Since then, the area’s population has continued to grow, placing increasing demand on the storage and pumping facilities on top of the wear and tear expected to come with age.

To maintain safety at the Hillcrest facility and improve its reliability for water service and hydropower production, Denver Water plans to make major upgrades through work estimated to run from mid-2016 to early 2020 in phases.

  • Phase 1: Tank replacement

    Crews will replace the two 15-million-gallon rectangular storage tanks with three same-sized, circular post-tensioned concrete tanks — a durable design less susceptible to leaks. The new tanks will sit slightly south of the existing tanks and will be buried up to roof height, which will be visible. We anticipate the first phase of construction will run from mid-2016 through late 2019.

    The Hillcrest site's three new 15 million gallon storage tanks will be buried up to roof height (rendering, looking west).

  • Phase 2: Pumping station replacement

    Crews will replace the pumping equipment, which is outdated, and the pumping station's building. This second phase of construction will overlap with the first and is anticipated for 2018 through early 2020.

    Hillcrest's pumping station, the building above the far left tank in this rendering (looking northeast), will get major upgrades.

  • After construction: Site improvements

    Once completed, the final site will also benefit from significant landscape and irrigation improvements, such as those proposed for the view looking north below.

    Pre-construction view of the Hillcrest site, looking north

    Proposed post-construction view of the Hillcrest site, looking north

     

The major upgrades this project brings to the Hillcrest facility are an important part of Denver Water’s plan for continued reliable water service to the southeast Denver area.

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