The Pima County Regional Flood Control District ("PCRFCD") grants to the user the rights to access PC-HYDRO 7.3 "the Website" subject to the following Terms and Conditions of Use:

PCRFCD is solely responsible for the content of the Website. The Website may not be modified, abridged, decompiled, disassembled, unobfuscated or reverse engineered. The user is solely responsible for the content, interactions, and effects of any and all amendments, if present, whether they be extension modules, language resource bundles, scripts or any other amendment.

No part of this Terms and Conditions for Use may be modified, deleted or obliterated from the Website.

No part of the Website may be exported or re-exported in contravention of U.S. export laws or regulations.

Waiver of Warranty


THE PIMA COUNTY REGIONAL FLOOD CONTROL DISTRICT AND ITS AGENCIES, OFFICIALS, REPRESENTATIVES, AND EMPLOYEES, INCLUDING ITS CONTRACTORS AND SUPPLIERS PROVIDE PC-HYDRO 7.3 "AS IS," WITHOUT ANY WARRANTY OR CONDITION, EXPRESSED, IMPLIED OR STATUTORY, AND SPECIFICALLY DISCLAIM ANY IMPLIED WARRANTIES OF TITLE, MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. Depending on state law, the foregoing disclaimer may not apply to you, and you may also have other legal rights that vary from state to state.

Limitation of Liability


IN NO EVENT SHALL THE PIMA COUNTY REGIONAL FLOOD CONTROL DISTRICT AND ITS AGENCIES, OFFICIALS, REPRESENTATIVES, AND EMPLOYEES, INCLUDING ITS CONTRACTORS AND SUPPLIERS, BE LIABLE FOR LOST PROFITS OR ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF OR IN CONNECTION WITH USE OF PC-HYDRO 7.3 REGARDLESS OF CAUSE, INCLUDING NEGLIGENCE.

THE PIMA COUNTY REGIONAL FLOOD CONTROL DISTRICT'S LIABILITY, AND THE LIABILITY OF ITS AGENCIES, OFFICIALS, REPRESENTATIVES, AND EMPLOYEES, INCLUDING ITS CONTRACTORS AND SUPPLIERS, TO YOU OR ANY THIRD PARTIES IN ANY CIRCUMSTANCE IS LIMITED TO THE CORRECTION OF IDENTIFIED ERRORS WITHIN PC-HYDRO 7.3. Depending on state law, the above limitation or exclusion may not apply to you.

Indemnity


As a voluntary user of PC-HYDRO 7.3 you agree to indemnify and hold the Pima County Regional Flood Control District, and its agencies, officials, representatives, and employees, including its contractors and suppliers, harmless from any claim or demand, including reasonable attorneys' fees, made by any third party due to or arising out of your use of PC-HYDRO 7.3 or breach of this Agreement or your violation of any law or the rights of a third party.

Version


Effective March 1, 2024, PCRFCD will no longer accept PC-HYDRO 7.2. Thereafter, PCRFCD will only accept PC-HYDRO 7.3, with limited exceptions. Information regarding PC-HYDRO 7.3 is available within the User Guide.

Consent


Clicking in the "I Agree" box indicates that you voluntarily accept these terms and conditions.

Select Return Periods to Output:
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Select Return Periods to Output
1-yr
2-yr
5-yr
10-yr
25-yr
50-yr
100-yr
200-yr
500-yr
1000-yr

All Selected Watersheds will be output to pdf. If a large number of watersheds are selected, it may take a while...







Select Return Periods to Output:
1-yr
2-yr
5-yr
10-yr
25-yr
50-yr
100-yr
200-yr
500-yr
1000-yr


The site has been tested on recent versions of all popular web browsers. It requires javascript to be enabled within your browser in order to run.

For questions, suggestions, comments, feature requests, or to report a bug, contact Pima County Flood Control.

Calculating...
For questions, suggestions, comments, feature requests, or to report a bug, contact Pima County Flood Control.
The PC-HYDRO batch interface is a tool to assist in managing multiple watersheds within one PC-HYDRO session.
Multiple .pk5 or .pk6 files can be opened in succession, or by selecting mutiple files form the file dialog, and saved to one .pk6 file containing multiple watersheds.
On this Batch Tools screen you can batch-run runoff data for all selected watersheds, as well as delete unneeded watersheds and print a single pdf output for all selected watersheds.

PC-HYDRO 7.3 is a web-based tool for performing hydrologic calculations per the Pima County PC-Hydro V7 manual. The program has the following features:

This page relies heavily on javascript, which was not detected.
Page functionality is severely disabled.

Project Information



Rainfall Data



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Note: Yellow background indicates that data input is needed, a data format error, or that data entered is outside the limitations of the program. See PC-HYDRO user guide for more information.
Project Name Conc. Point Q2 Q10 Q100