Revision of Technical Policy TECH 003: Minimum Construction Requirements for Manufactured Home Foundations in Floodway Fringe Areas
11/9/2009
Technical Policy TECH 003 (PDF, 3 MB) has been revised based on new state standard details. This revision has an effective date of November 2, 2009.
New Technical Policy TECH 022: Use of Flood Openings or Vents Below the RFE
11/9/2009
Technical Policy TECH 022 (PDF) has been developed to provide guidance for the installation of flood openings or vents on structures that are not elevated to the Regulatory Flood Elevation (RFE). TECH 022 has an effective date of November 2, 2009.
New Technical Policy TECH 023: Structures that Are Allowed to be Wet Floodproofed
11/9/2009
Technical Policy TECH 023 (PDF) has been developed to provide guidance as to what constitutes a building that is useable solely for parking, access and storage. It details certain elements that disallow the use of wet flood proofing as an option for protecting structures from flood damage. TECH 023 has an effective date of November 2, 2009.
New Technical Policy TECH 115: Permitting within Regulatory Sheet Flood Areas
11/9/2009
Technical Policy TECH 115 (PDF) has been developed to help streamline the permitting process within regulatory sheetflow flood hazard areas. This policy provides a mechanism for obtaining a Floodplain Use Permit over the counter for specified activities, where no obstacles to permitting exist, such as violations on the property. TECH 115 has an effective date of November 2, 2009.
County-wide FEMA Flood Insurance Rate Map revisions announced!
11/3/2009
FEMA has recently announced the public comment period for the first complete re-issuance of the county-wide Flood Insurance Rate Maps (FIRMs) since 1999. The new maps have important ramifications for many residents and property owners within Pima County. The District has developed a web page to help guide individuals and business through the new Digitital FIRMs. The District has developed some innovative and effective tools to help users determine what impact the Preliminary DFIRMs will have, including a side-by-side comparison tool, and a tool that graphically shows where the maps have changed and in what way they have changed. Information is also available regarding what comments the flood control jurisdictions have made to FEMA regarding the new DFIRMs and information about opportunities the public has for commenting on the preliminary DFIRMs. Please see the "L" Series FEMA Flood Insurance Rate Maps page for more information.
Draft of the revised Regulated Riparian Habitat Mitigation Standards and Implementation Guidelines
10/28/2009
The latest draft of the revised Regulated Riparian Habitat Mitigation Standards and Implementation Guidelines (8 MB PDF) is available. Please go to the Mitigation Guidelines revision page for more information.
PC Hydro Version 5.4.2 Released October 20, 2009
10/21/2009
PC Hydro 5.4.2 corrects a minor error in the cumulative volume calculation in the hydrograph file (*.Hyd file). The hydrograph itself remains unchanged and in all other ways and calculations, PC Hydro 5.4.2 is the same as the previous release version, PC Hydro 5.3.
Pegler Wash/Sotomayor Ranch Levee Letter of Map Revision (LOMR)
10/21/2009
The Pima Wash Letter of Map Revision (LOMR), Case Number 09-09-0020P, is now available. This LOMR becomes effective November 20, 2009. Additional FEMA map revisions can be found on the CLOMRs, LOMRs and LOMAs page.
Canada del Oro Wash Letter of Map Revision (LOMR)
9/11/2009
The Canada del Oro Wash Letter of Map Revision (LOMR) (24MB PDF), Case Number 08-09-1811P, is now available. NOTE: This LOMR does not become effective until January 19, 2010. The existing FIRM data is the official floodplain until this LOMR becomes effective. Additional FEMA map revisions can be found on the CLOMRs, LOMRs and LOMAs page.
New Technical Policy TECH 014: Erosion Protection of Stem Wall Foundations in Floodway Fringe Areas
9/9/2009
Technical Policy TECH 014 (PDF) has been developed based upon information that was a part of TECH 003 for Manufactured Home foundation construction. TECH 014 expands the use of stem wall scour protection criteria to site-built structures and utilizes more refined analysis tools to more accurately determine the scour potential of flood flows against stem walls. TECH 014 has an effective date of August 31, 2009.
Revision of Technical Policy TECH 006: Erosion Protection of Fill Pads in Floodway Fringe Areas
9/9/2009
Technical Policy TECH 006 (PDF) has been revised based on the use of more refined analysis tools to more accurately determine the scour potential of flood flows against fill pads. The revised policy has an effective date of August 31, 2009.
Ordinance Revisions Information Sheet
6/16/2009
Comments and Responses on 2005-FC2 Ordinance Revision. Comments on the proposed revisions to the 2005-FC2 Flood and Erosion Hazard Management Ordinance have been added, along with responses to those comments.
Lee Moore Wash Basin Management Study
2/13/2009
The Geomorphic Analysis Report for the Lee Moore Wash Basin Management Study in Pima County, Arizona (PDF format, 85 MB) has been completed and is available on the Lee Moore Wash Basin Management Study webpage.
Pima Wash Letter of Map Revision (LOMR)
2/11/2009
The Pima Wash Letter of Map Revision (LOMR), Case Number 08-09-1756X, is now available. This LOMR became effective September 29, 2008. Additional FEMA map revisions can be found on the CLOMRs, LOMRs and LOMAs page.
Friendly Village Wash Letter of Map Revision (LOMR)
2/11/2009
The Friendly Village Wash Letter of Map Revision (LOMR), Case Number 08-09-0473P, is now available. This LOMR became effective October 23, 2008. Additional FEMA map revisions can be found on the CLOMRs, LOMRs and LOMAs page.
Draft of the revised Regulated Riparian Habitat Mitigation Standards and Implementation Guidelines
1/16/2009
The latest draft of the revised Regulated Riparian Habitat Mitigation Standards and Implementation Guidelines (7 MB PDF) has incorporated comments from the last Mitigation Working Group (MWG) meeting held on December 11, 2008.
The District will hold the following public Open Houses:
- Tuesday, January 27, 2009 from 6:00 p.m. to 7:30 p.m. at the Udall Center (room 3), 7200 East Tanque Verde Road
- Wednesday, January 28, 2009 from 6:00 p.m. to 7:30 p.m. at the Lower Level Meeting room of the Joel Valdez Main Library, 101 North Stone Avenue.
There will be no formal presentation at the Open House meetings, but staff will be available both days from 6:00 p.m. until 7:30 p.m to answer questions and take comments. Additional information on the revision effort is available on the Revision of Riparian Habitat Mitigation Guidelines page.
Minimum Construction Requirements for Manufactured Home Foundations in Floodway Fringe Areas
1/7/2009
The District has approved a new Technical Procedure for Minimum Construction Requirements for Manufactured Home Foundations in Floodway Fringe Areas. This procedure, Technical Procedure 003, is the result of new requirements from the Office of Manufactured Housing and supercedes all prior construction requirements for the placement of Manufactured Homes in regulatory floodplains. However, the requirements are not retroactive.
Pantano Wash Bank Protection: Speedway Blvd. to Tanque Verde Rd.
12/24/2008
A project page has been established for the construction of Pantano Wash Bank Protection from Speedway Blvd. to Tanque Verde Rd. A project overview, maps and details for the project are currently available on the project page.
Omni/Canada del Oro Wash Riverpark Project Construction Photos
12/23/2008
Under Construction photos of the Omni/Canada del Oro Wash Riverpark Project have been added to the project home page.
Report on Sahuarita Heights Flooding - Delgado Watershed Area
12/3/2008
A report on Sahuarita Heights Flooding - Delgado Watershed Area (PDF format, 8 MB) has been completed. The Delgado Watershed is contained within the Lee Moore Wash Basin. For more information on the Lee Moore Wash Basin Managment Study, visit the Lee Moore Project Page
Arroyo Chico Multi-Use Project Photos
12/2/2008
New photographs of the Arroyo Chico Multi-Use Project (Cherry Fields) have been added to the Arroyo Chico Project Page.
Ordinance Revisions Information Sheet
11/28/2008
An Ordinance Revisions Information Sheet (PDF) outlining the more significant proposed revisions has been created. This information sheet provides the section of the Ordinance revised with a brief description of the revision. For all of the proposed revisions, please view the underline-strikeout version of the draft ordinance available on the ordinance revision page.
Riparian Habitat Mitigation Guidelines Revision Information Sheet
11/28/2008
A Riparian Habitat Mitigation Guidelines Revision Information Sheet (PDF) outlining the key revisions has been created. A complete version of the proposed guidelines, as revised, will be made available on the Revision of Riparian Habitat Mitigation Guidelines page once the document is finalized after the final Mitigation Working Group meeting on December 11, 2008.
Construction Update for Rillito River Linear Park from Alvernon Way to Craycroft Road
11/28/2008
A construction update (PDF) was been issued on November 14, 2008 for Rillito River Linear Park from Alvernon Way to Craycroft Road, including information about trail closures. More information on the project can be found on the project page.
Construction Update for Rillito River Linear Park from Alvernon Way to Craycroft Road
11/28/2008
A construction update (PDF) was been issued on October 28, 2008 for Rillito River Linear Park from Alvernon Way to Craycroft Road, including information about trail closures. More information on the project can be found on the project page.
Update to Water Resources in Pima County document
11/28/2008
Water Resources in Pima County (PDF) has been updated to reflect more recent information.
Revisions of Floodplain and Erosion Hazard Managmenet Ordinance 2005-FC2 Proposed
11/4/08
The District is currently in the process of revising the Floodplain and Erosion Hazard Management Ordinance. Please go to the Revision of Floodplain and Erosion Hazard Management Ordinance 2005-FC2 page to view the revisions and read summaries of the revisions.
Omni/Canada del Oro Wash Riverpark Project
6/11/08
The May 2004 General Bond Election provided $5 million for linear parks on the Canda Del Oro (CDO) Wash between Thornydale Road and the north end of Omni/Tucson National Golf Course. Pima County Regional Flood Control District has completed construction plans for the first phase of the Omni/Canada del Oro Wash Riverpark Project, which is the construction of a linear park on the east bank of the CDO from Magee to the north end of Omni/Tucson National at La Cholla Blvd. The linear park is restricted to the east side of the CDO based on an agreement between Omni/Tucson National and Pima County that provide Pima County the right-of-way to construct the linear park. Construction of phase 1 is to begin the week of June 9, 2008 and is expected to last for 6 to 9 month. There is an Open House for this project on June 12, 2008.
Flecha Caida Estates Floodplain Mapping Study
6/05/08
Flooding and erosion within the Flecha Caida Ranch Estates #9 subdivision during the 2007 summer monsoon season raised the concerns of numerous homeowners who were not aware of the historical drainage problems inherent to the area. The Pima County Regional Flood Control District recently completed a floodplain study for Valley View Wash - that updates the existing Special Study #12 - to address flooding concerns in the area. Area residents are encouraged to read the Flecha Caida Estates Floodplain Mapping Study report.
New Flood Hazard Map Available
11/30/07
"The Floodplain In or Out" MapGuide map has been replaced with a new map of known flood hazards. This map shows FEMA and known local floodplains and regulatory washes. It is provided for general information only and may not be adequate for permitting purposes. Not all areas subject to flooding are shown on the map. Erosion hazard areas are not shown on the map. The accuracy of delineations, including the delineation of regulatory washes, is not guaranteed. You may also you inquire about the flood status of your property by one of the methods described on our flood hazard information page.
