Arvada’s Direction

Infrastructure

Infrastructure Master Plan

Due: December 2025

Principle: Provides safe and efficient connections to modes of transportation, including transit, streets, sidewalks, and bikeways with a focus on enhanced technology at high-priority intersections improving safety and minimizing traffic congestion.

Description

The purpose of infrastructure master planning is to sustain the City's infrastructure.  The work includes assessing current asset condition; developing a list of projects for capital improvement and reinvestment; estimating project costs; and prioritizing those projects on short and long-term schedules.

This strategic result covers the City's work to update master plans by December 2021.  

Significance

It is important for the City to frequently review and update Infrastructure Master Plans to ensure we are taking lasting care of infrastructure assets and are appropriately planning for reinvestment, replacement, and maintenance of infrastructure assets.

Analysis

Work System
Performance Measures

Wastewater Pipeline Maintenance

Description

This is a milestone measurement: the City is investing $2 million annually in upgrading the sewer collection system. The majority of the work is on 15 inch or smaller pipelines. The goal is to complete the 15 inch or smaller pipeline upgrades by 2023 and perform work on the larger pipelines as needed, with completion by 2033. The upgrades will have a lifecycle of 75 years.



Significance

This milestone goal is important for several reasons. Mostly, it insures the physical and environmental integrity of our sanitary sewer system for decades to come. Through the process of Cured In Place Pipe lining, (CIPP) and limited pipe replacement, the reliability and efficiency of the sanitary sewer system continues to measurably improve.


 In the last 15 years, we have seen the average number of sewer blockages or back-ups in the City owned system drop from 10 per year to 1.5 per year currently.  We have been able to greatly reduce the amount of infiltration or ground water entering in to the sewer pipes which have increased the capacity within the system as well as saving significant costs to the Denver Metro Wastewater Reclamation District for treatment.


 The completion of this milestone by 2023 will allow our focus and resources to be directed to any needed improvements on larger sewer lines to insure capacity and integrity to meet the needs of all future growth within the City.

Analysis

In 2020, 5.07 miles of older sewer mains were replaced or rehabilitated through CIPP technology. This included the Ralston trunk replacement and oversizing as well as the 2020 CIPP project. As of 2021, there is only 23.97 miles of older pipe remaining. This accounts for 5.3% of all sewer pipe 15" and smaller in the system.

Data Source

Annual system reports from Geo Data Services.

Waterline Breaks 

Description

The City is committed to maintaining the investment in the water system infrastructure. One measure of success is the number of water pipeline breaks that occur annually. The goal or target is to have 25 or fewer water distribution pipeline breaks annually. Data entered each quarter is cumulative. 


The goal and target is 4 or less per 100 miles while the industry standard is 12 per 100 miles. 

Significance

By Investing in water main replacement and taking the time to analyze and prioritize existing infrastructure, the workforce has been able to reduce the number of pipeline breaks each year. 

Keeping the system in good condition improves customer service, saves money, enhances efficiency and assists in keeping water rates as low as possible.

Reducing water distribution pipeline breaks also plays a role in overall water conservation as one break can result in the loss of millions of gallons of water. 

Analysis

Data Source

City Works Asset Management System