Capital Planner: The Ultimate Water System Rehabilitation Solution

CapPlan Water is a complete decision support, asset management, and capital planning tool for drinking water systems. Utilizing Mircosoft .NET and ESRI ArcObjects component technologies, CapPlan Water seamlessly integrates GIS information, hydraulic and water quality modeling, CMMS, and other related information to help prioritize rehabilitation and replacement of drinking water pipelines.

Underground infrastructure is rapidly deteriorating and many utilities struggle with developing a rehabilitation and replacement program that addresses the most critical pipes in the system. Many capital improvement programs spend millions of dollars annually, but unfortunately do little to lower total system risk. CapPlan Water gives utilities the tools in one off-the-shelf software package to build or refine their capital improvement plans to ensure maximum benefit for the least cost.

Average main break rate of 21-25 breaks per 100 miles of pipe per year
About 237,600 water main breaks occur every year
 

The need to replace aging transmission and distribution components is a critical part of any drinking water system’s capital improvement plan (US: span 1 billion miles) -- Total United States 20-year needs $150.9 billion
 
Annual replacement for transmission lines and distribution mains

~ 4,400 miles of pipe are replaced each year
~ 13,200 miles of new pipe are installed each year

Consequence of Failure

With CapPlan Water, each pipe in your system is evaluated to determine the consequence of its failure. 
Criteria can include:

Flow (Demand) Supplied

Water Quality Delivered

Population Density Served

Critical Facilities Served

Outage/Isolation Analysis
Reduced Fire Fighting Capabilities
Adjacent Damage Repair Costs
Traffic Interruptions
And more…

Probability of Failure

The likelihood of a pipe's failure can also be calculated by incorporating the combination of many factors:

Hydraulic condition

Age

Material

Diameter

Soil Characteristics

Seismic Faults

Railroad Intersections

Traffic loading

Break defect history

Hydraulic transients

Joint types

And more…

Risk of Failure

The actual risk of failure is a combination of the consequence and probability of failure. CapPlan Water gives you three methods to calculate the risk

Standard Linear Normalization (COF X POF)

Bi-Directional Distribution. This method allows you to build a matrix based on your choice of scoring systems.





 

Consequence Scores

 

Probability Scores

 

NCS1

NCS2

NCS3

NCSj

NLS1

R11

R12

R13

R1j

NLS2

R21

R22

R23

R2j

NLS3

R31

R32

R33

R3j

 

NLSi

Ri1

Ri2

Ri3

Rij


Multi-criterion classification. When advanced data sets are available it is possible to draw risk conclusions based on a cohort analysis. This multi-criterion classification allows you to apply these risk methods to the entire system.

With a calculated risk for each pipe in the system, CapPlan Water can build your rehabilitation plan. CapPlan Water analyses the material and age of each pipe in the system and lets you customize the methodology and cost variables for how those pipes should be repaired or replaced. Armed with costs and total system risk, different capital planning scenarios can be presented that show levels of spending versus overall reduction in system risk.

(Click to enlarge the picture)