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The District has developed software to assist the engineering community perform tasks using standard methods approved by the District. New software will be added as it becomes available.
- PC-HYDRO Version 5.x - Pima County method for hydrology modeling.
- Base Flood Elevation Calculation Spreadsheet (Microsoft Excel format, right-click and choose "Save as" option to download) - Use this spreadsheet to calculate the Base Flood Elevation (BFE) and Regulatory Flood Elevation (RFE). Please see Technical Procedure 101 for more information about calculating BFE.
- Maximum Anticipated Scour Depth Calculation Spreadsheet (Microsoft Excel format, right-click and choose "Save as" option to download) - NOTE: This spreadsheet was revised in March 2011. A spreadsheet for calculating maximum anticipated scour depth for simple curved adn straight reaches of non-regional sand bed conveyances with optional local scour at abutments and bridge piers, without local scour at drops or long term degradation.
- The District has developed the following spreadsheets to assist in model parameterization of HEC-HMS models. The files are in Microsoft Excel format, right-click and choose "Save as" option to download.
- ARF and Storm Distribution - Calculate rainfall areal reduction and provide a 3-hr or 24-hr design storm distribution
- CN - Calculate Curve Number for a subbasin. The CN is not adjusted for rainfall intensity or antecedent moisture conditions.
- Number of Routing Steps - Calculate number of routing steps for a channel using a HEC-RAS standard output table.
- Storage Discharge - Calculate a Storage-Discharge relation for the Modified-Puls channel routing using a HEC-RAS standard output table.
- Tc - Calculate sum of the travel time for sheet, shallow concentrated and channel flows. The travel time for channel flow is calculated using a HEC-RAS standard output table.
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