Parallel Boyd Sanitary Sewer Project

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Project Overview:

The existing 24” Boyd sanitary sewer interceptor (pipe) drains the largest sanitary sewer basin in the City of Loveland. Approximately 25% of the sanitary sewer from the City is collected and conveyed to the Wastewater Treatment Plant (WWTP) through the existing series of pipes. Given the growth of the City in the last 20 years sewer flows have increased substantially. As a result, the amount of remaining capacity in the existing wastewater lines has diminished. The wastewater master plan and associated wastewater hydraulic modeling has shown the need for a new parallel 24” pipe to convey future wastewater flows and current peak flows. 

Loveland Water and Power has worked with its engineering consultant, HDR, to design a parallel 24” PVC sanitary sewer interceptor to relieve the pressure on the existing pipe and to be able convey flows associated with future growth. The new sewer line will be approximately 6,800 feet. Construction will begin at the NE intersection of Highway 34 and Cheyenne Ave. The pipe route makes its way through Cheyenne Ave., E. 17th St., N. Boise Ave., Silver Leaf Drive, and terminates in N. Madison Ave. approximately 650’ north of Silver Leaf Drive. 

As the design of the sanitary sewer transpired, other City Departments joined the project with infrastructure improvements that were previously planned for the same area. In addition, Loveland Water and Power will be installing a new 3,800 feet electric duct bank. The new duct bank will replace aging infrastructure and provide improved reliability. Likewise Public Work's Stormwater Department plans to drain accumulated stormwater from the intersection of N. Boise Ave. and E. 17th Street. This project, with inlets at the intersection, will convey stormwater, through a 36” pipe, to the Greeley Loveland Irrigation Canal, near the starting location of the sewer project. In addition to the sewer, electric, and stormwater improvements Public Works has decided to replace the aging curb, gutter and sidewalk along the project route. Our hope is to be able to combine these infrastructure needs into one project to realize cost savings and inconvenience.


Project Goals:

The goals of the Parallel Boyd Sanitary Sewer Improvements and Associated Utility Improvements are to:

  • Replace aging infrastructure
  • Planning for future growth
  • Increase reliability and operational flexibility in Wastewater systems
  • Relocate equipment that is difficult to access
  • Alleviate pressure on existing facilities
  • Replace failing and cracked concrete and improve sidewalk condition
  • Improve localized drainage and reduce potential for flooding 
  • Additional looping of infrastructure to increase restoration times


Estimated Timeline:

Project Phase   Project Partners    Scope of Work Start Date  Finish Date
 Phase 1
  • Wastewater
  • Power
  • Public Works - Stormwater
  • Public Works – Asphalt Resurfacing
  • Public Works – Sidewalk and Curb and Gutter Replacement
  • 2,100 Feet of New 24” PVC Sanitary Sewer
  • Approximately 2,500 Feet of 36” *and Smaller) Storm Sewer Installation
  • 2,100 feet of new electric duct bank
  • Over 2,900 Feet of Sidewalk and Curb and Gutter Replacement
  • 17th St and Cheyenne Ave. Asphalt Rehabilitation
January 2018  April 2018
 Phase 2
  • Wastewater
  • Power
  • Approximately 4,700’ of New 24” PVC Sanitary Sewer
  • 2,100 Feet of New Electric Duct Bank
May 2018 Fall 2018



  • Update 9/28/2018: Starting 10/1/2018, work will occur along the west side of Boise Ave from 16th Street to 17th Street. During this time access to Axial Drive from Boise will be temporarily closed. See the letter issued 9/28/18 for more details. 
  • Update 9/6/2018: The Boyd Sewer Project will require a partial closure of Boise Avenue near McKee Medical Center from Monday, September 10 for approximately seven days. See the press release issued on 9/4/2018 for additional information.
  • Update 8/28/2018: A letter was delivered to customers who will be impacted by the upcoming installation of a new wastewater interceptor located on Silver Leaf. The installation of this line will require temporary closures of roadways and periodic elimination of on street parking.
  • Update 6/29/2018: LWP is currently entering the final phase of the utility improvement along 17th Street and, starting July 2, 2018, we will begin the roadway replacement. This will include installation of concrete curb and gutter, sidewalk, and asphalt paving. In order to complete this work, access to some driveways will be temporarily closed. Those affected customers have been notified via letter.
  • Update 6/29/2018: Residents may be impacted by temporary street closures during the utility installation, on the east intersection of E. 18th Street and Boise Avenue starting July 9, 2018. Access to homes and businesses will be maintained, and access to E. 18th Street, east of Boise Avenue, will be provided via detour at E. 15th Street. A letter has been delivered to those affected customers regarding the street closer.
  • Update 5/17/2018: A letter was sent to customers reviewing the project details and timeline of the project.  
  • Update 4/19/2018: There will be a planned water outage Friday, April 20, 2018 from 8am - 12pm for select residents and business along E 17th Street from Boise Avenue to Cheyenne Avenue and along Cheyenne Avenue from E. 17th Street to E 16th Street. Those affected residents will be notified via door hanger. Water Operations will be assisting the contractor in isolating valves and will be monitoring the system in the affected area. 
  • Update 4/5/2018: There will be a planned water outage TODAY from 8:00 AM to 5:00 PM for select residents and business along E 17th Street from Boise Avenue to Cheyenne Avenue and along Cheyenne Avenue from E. 17th Street to E 16th Street. Those affected residents were notified via door hanger.
  • Update 3/22/2018: Residents may be impacted by temporary street closures until April 6, 2018. A letter and map was hand delivered to the affected customers.
  • Update 3/22/2018: The Recreation Trail underpass at U.S. Hwy 34 and Denver Ave will re-open Friday, March 23, 2018.
  • Update 2/19/2018:There will be a planned water outage on Monday, February 19, 2018 from 1:00 PM to 5:00 PM for select residents and business along Cheyenne Avenue from E 15th Street to Westboume Drive.  Those affected residents were notified via door hanger on Friday, February 16, 2018. 
  • Update 1/30/2018: City of Loveland released a media release and project map regarding the closer of the Recreation Trail underpass at U.S. Hwy 34 and Denver Ave.
  • Update 1/16/18: A public meeting to discuss the project will be held on Tuesday, January 23, 2018 from 4:00 PM - 6:00 PM at the Water and Power Service Center, 200 N. Wilson Ave.
  • Update 1/15/18: A letter will be delivered to the customers affected to by Phase I of the project. Please call or email Carlos Medina if you have any questions. Letter - Phase I

Project Documents:

Overview Map

Phase 1 Map
Phase 2 Map




Tanner Randall
Senior Civil Engineer

Carlos Medina
Civil Engineer

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