Baseline Replacement Cost calculation provides a rough budgetary estimate for pipe replacement based on life expectancy of pipe based on material, rehab cost, and year installed.


To execute a Baseline Replacement Cost calculation, click on the Tools drop-down menu and select Baseline Replacement > Calculate Baseline Replacement Cost... in the Analysis tab of the Operation Center.

Note that if the calculation has already been performed, the Baseline Replacement Cost reports can be viewed by clicking on Tools>Baseline Replacement > Baseline Replacement Cost Report...



When Calculate Baseline Replacement Cost... is selected, the following dialog box will be displayed:



Scope - Choose the Full Network or a previously saved Facility Selection on which to include in the Baseline Replacement Cost Calculation.

Deterioration Model - To include a Deterioration Model which can enhance the accuracy of the Baseline Replacement Cost Calculation, tick the Use Deterioration Model box and select a previously run Deterioration Model from the drop-down list. Then, specify the desired method of residual life calculation in the Target Field from the selected Deterioration Model to use in this calculation.  See the Deterioration Models section of the Help for more information.

Year Setting - Enter a time range in the From Year and To Year fields for which the analysis will be performed and an Interest Rate to adjust for inflation.

Click the Material Life Span Setting... button to enter the life expectancy for each of the pipe materials used in the project.



After clicking the Calculate button several graphs and reports are generated:



Nessie Curve - Line plot displaying the Baseline Replacement Cost per year both with and without inflation. 

Cost By Material Graph - Bar graph displays the Baseline Replacement Cost per year for each pipe material. View the costs with inflation by ticking the Show Baseline Replacement Cost (With Inflation) option at the top left.

Cost By Diameter Graph - If the Cost/(Diameter*Length) option was used in the calculation, this bar graph will display the Baseline Replacement Cost per year for each pipe diameter. View the costs with inflation by ticking the Show Baseline Replacement Cost (With Inflation) option at the top left.

Summary Report - A tabular report that shows the Baseline Replacement Cost per year with and without Inflation.

Detail Report -  A tabular report that includes each pipe utilized in the analysis, its diameter, material, install year, replacement material, projected replacement year, and replacement costs with and without inflation.

Cost By Material Report - A tabular report displaying the Baseline Replacement Costs (with and without inflation) per year by material.

Cost By Diameter Report - A tabular report displaying the Baseline Replacement Costs (with and without inflation) per year by pipe diameter.


For additional useful information on using the Calculate Baseline Replacement Cost tool, see our Knowledge Base and User Forum resources.