Floodplain Studies
Note: On-going Floodplain mapping and basin management plan projects can be found on the Projects page.
Special Studies Floodplain Reports
- Special Study 00 - Miscellaneous Floodplain Mapping
- Floodplain Study FP-001-1972 - Drainage Report for Arivaca Area Plan, Blanton & Co. 3/21/1972.
- Floodplain Study FP-002-2017 - Ruthrauff Basin Management Plan Technical Data Notebook, JE Fuller Hydrology & Geomorphology Inc., 11/2/2015.
- Floodplain Study FP-003-1986 - Flecha Caida Flood Improvement Study, Simons, Li & Associates, 1/28/1986.
- Floodplain Study FP-004-1986 - Tucson Mountain Basin Study, Camp Dresser & McKee, Inc., March 15, 1986.
- Floodplain Study FP-005-1986 - Highlands Wash Basin Management Plan Report, A-N West, Inc., July 15, 1986 and Phase III Final Report, Camp Dresser & McKee, Inc., 1/25/1990.
- Floodplain Study FP-006-1987 - Riverside Terrace Basin Management Plan, Dooley-Jones & Associates, 3/13/1987.
- Floodplain Study FP-007-1988 - Ventana Canyon Estates, Erosion Setback Limits, Osborn, Petterson, Walbert and Associates, 2/4/1988.
- Floodplain Study FP-008-1988 - Millstone Manor No. 6, PCDOT&FCD, 6/20/1988.
- Floodplain Study FP-009-1988 - Sutherland Wash, H&H Report, PC DOT&FCD, 8/9/1988.
- Lee Moore Wash Basin Management Study. The Lee Moore Basin Management Study was recently divided into two study areas with Houghton Road as the dividing line between the two. The 2009 study established flow corridors that were agreed upon by multiple agencies and may be applicable for development projects. The latest studies should be used for single-lot permitting.
- Floodplain Study FP-011-1989 - Green Valley Drainageway No.9, CMG Drainage Engineering Inc., 1/12/1989.
- Floodplain Study FP-012-1989 - Valley View Wash, Flecha Caida Flood Phase 2, Simons, Li & Associates, Inc., 2/15/1989.
- Floodplain Study FP-013-1991- Holladay Street & Forrest Avenue Watershed Study, McGovern, MacVittie Lodge & Dean, Inc., 1/22/90 and Drainage Relief Assessment for the Drexel/Westover Intersection, CMG Drainage Engineering, Inc., 11/25/1991.
- Floodplain Study FP-014-1990 - Southwest Basin Management Study, Anderson, Passarelli & Associates, 11/27/1990.
- Floodplain Study FP-015-1990 - Black Wash Drainage Analysis, Administrative Floodway, 7/00/1990.
- Floodplain Study FP-016-2006 - [Upper] Canada Del Oro Wash Letter of Map Revision Study, David Evans and Associates, 10/28/2004.
- Floodplain Study FP-017-1992 - Fortyniner's Interior Drainage Improvements, PC DOT&FCD, January 1992
- Floodplain Study FP-018-2009 - Soldier Wash and its Tributary, RFCD, 6/10/2010. (Webmaster's note: Please note that erroneous versions of Exhibits 1.1 and 1.2 were accidentally linked here. If you downloaded Exhibits 1.1 or 1.2 previously, please ensure that you have the correct version of these exhibits.) Exhibit 1.1, Exhibit 1.2, Exhibit 3.1, Exhibit 3.2(Note: This study replaces two previous Special Studies for Soldier Wash, one study by Arroyo Engineering and one study by RGA Engineering, and also replaces a previous Special Study #33 for Milagrosa Hills Wash)
- Floodplain and Erosion Study ES-019-1992 - Tortolita Mountains Geomorphic Assessment, Arizona Geological Survey, June 1992
- Floodplain Study FP-020-1992 - Valencia Wash Basin Management Study, Alpha Engineering, 3/8/1993.
- Floodplain Study FP-021-1992 - Upper Carmack, South Branch, Sub-Basin Management Study (Phase 1 Report only), [Phase 1 Appendices] [Phase 2 Report] [Phase 2 Appendices], Robert L. Shand, P.E., Drainage & Flood-Control Engineering, 7/24/1992.
- Floodplain Study FP-022-1992 - 27 Mile Wash Flood Plain Delineation Study, Collins-Pina Consulting Engineers Inc., August 1992
- Erosion Study ES-023-1993 - Tanque Verde Creek Management Study, Johnson-Brittain & Associates, July 30, 1993.
- Floodplain Study FP-024-1993 - Tortolita Area Basin Management Plan, Ph I, Ph IIB, Cella Barr Associates, 8/3/1993.
- Floodplain Study FP-025-1993 - Mt. Lemmon Culvert Study, CMG, Drainage Engineering, Inc., 11/19/1993, and Final Drainage Report for Summerhaven Village Center, CMG Drainage Engineering, Inc., 9/13/2005.
- Floodplain Study FP-026-1994 - Southwest Basin Management Study Ph. II Part A, Volume 1 and Volume 2 Cella Barr Associates, 4/29/1994.
- Floodplain Study FP-027-1986 - New Tucson, Units 21, 22, 23, 24 & 27, Erosion-Hazard Setback Analysis for Unit 23, Martin-McItosh, 1/23/95. Hydrologic and Hydraulic Report for Units 22, 23 and 24, DJA Job No. 84-077.01. Hydrology Report, New Tucson, Unit 27, Environmental Engineering Consultants, 9/5/1996.
- Floodplain Study FP-028-1994 - Hydrology/Hydraulics Report for Demetrie Wash, McGovern, MacVittie, Lodge & Associates, Inc., 10/13/1994.
- Floodplain Study FP-029-1987 - San Joaquin Estates Floodplain Status Hydrology Report for San Joaquin Estates - Improvement Plans Lots 268 thru 290, Trimble Engineering, Inc., 3/22/1987 and Drainage Reports for Phases III-A, IV and V of San Joaquin Estates, CMG Drainage Engineering, Inc., 5/31/1989.
- Floodplain Study FP-030-1994 - Hydrologic/Hydraulic Report for Palo Verde Ranch, ICON Consultants USA, Inc., 7/1/1994.
- Floodplain Study FP-031-1996 - Brawley Wash Floodplain Study, Simons, Li & Associates, Inc., 9/6/1996.
- Floodplain Study FP-032-1996 - New Tucson Units 26, 28, 29 & 30, ICON Consultants USA, Inc., 9/9/1996 and Addendum I, ICON, 3/29/2006 and Addendum II, ICON, 5/15/2006.
- (Note: The previous Special Study #33 for Milagrosa Hills Wash has been superceded by Special Study #18, above.)
- Floodplain Study FP-034-1995 - 49ers Country Club Lots 315 to 324, McGovern, MacVittie, Lodge & Associates, Inc., 8/15/1995.
- Floodplain Study FP-035-1999 - Earp Wash, DJA Engineering Corp., 3/4/1999.
- Floodplain Study FP-036-2008 - Camino Real Wash Letter of Map Revision, Castro Engineering an JE Fuller Hydrology & Geomorphology, Inc., 7/14/2008.
- Floodplain Study FP-037-1999 - Camino de Oeste Wash, Arroyo Engineering, Inc., January 1999.
- Floodplain Study FP-038-1999 - Sahuarita Basin Management Study, CMG Drainage Engineering Inc., 1/5/2000.
- Floodplain Study FP-039-2016 - Two-dimensional Hydraulic Modeling Study Report for Finger Rock Wash Lower Floodplain, CMG Drainage Engineering, Inc., 6/29/2016. This study replaces HEC-1 and FLO 2-D Models for Finger Rock Wash, CMG Drainage Engineering Inc., 10/6/00 and Lower Finger Rock Wash, CMG Drainage Engineering Inc., Revised 2/28/1994.
- Floodplain Study FP-040-2000 - Mission Wash Study for FEMA, McGovern, MacVittie, Lodge & Associates, 7/24/2000.
- Floodplain Study FP-041-2000 - Chaparral Heights -- annexed by Oro Valley.
- Floodplain Study FP-042-1999 - Brawley Wash Primary Flood Corridor Study, Simons, Li & Associates, 6/1/1999.
- Floodplain Study FP-043-1995 - Idle Hour Wash Letter of Map Revision, Simons, Lie & Associates, 3/24/1995.
- Floodplain Study FP-044-1982 - Central Arizona Project (CAP) Tucson Aqueduct, Bureau of Reclamation, U.S. Dept. of the Interior, Reach 3 May 1982, Reach 4 April 1984, Reach 5 June 1983.
- Floodplain Study FP-045-2003 - Summerhaven Hydrologic and Hydraulic Analysis, URS, 12/30/2003.
- Floodplain Study FP-046-2006 - Sheet Flood Mapping for Unincorporated Pima County, PCRFCD, 8/8/2007.
- Floodplain Study FP-047-2007 - Silverbell Trails Estates, Delph Engineering, Inc., 10/1/2003.
- Floodplain Study FP-048-2008 - Hacienda Sol Wash Floodplain Analysis, PC RFCD, 3/14/08 and Floodplain Analysis for an unnamed wash at the Intersection of Hacienda del Sol Road and River Road, PC RFCD, 3/14/2008.
- Floodplain Study FP-049-2007 - Diamond Bell Ranch Hydrology, Psomas, 10/12/2007.
- Floodplain Study FP-050-2008 - Floodplain Study for Flecha Caida Ranch Estates #9, Including Portions of Flecha Caida Ranch Estates #1 and #2 and Las Lomas de Catalina, JE Fuller Hydrology & Geomorphology Inc., 4/8/2008
- Floodplain Study FP-051-2008 - Floodplain Analysis for Tanuri Wash, PCRFCD, 6/2/2008.
- Floodplain Study FP-052-2004 - Emergency Evaluation Study Report on the July 29, 2003, Flooding in Ajo, Arizona, TetraTech, April 2004. Ajo Flood depth map, PCRFCD, 2010.
- Floodplain Study FP-053-2015 - Floodplain Mapping of Tres Lomas Wash and Woodland Wash and Their Tributaries, RFCD, 8/3/2015.
- Floodplain Study FP-054-2010 - Floodplain Mapping of the Geronimo Wash and its Tributary, RFCD, February 2010.
- Floodplain Study FP-055-2010 - Flecha Caida LOMR Technical Data Notebook, RFCD, 7/15/2010.
- Floodplain Study FP-056-2010 - Craycroft Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping of the Craycroft Wash and its Tributary, RFCD, 7/15/2010.
- Floodplain Study FP-057-2011 - Old Grandad Tank Technical Data Notebook for Hydrologic and Hydraulic Mapping of the Old Grandad Tank Wash and its Tributary, RFCD, 11/18/2010.
- Floodplain Study FP-058-2013 - Wentworth Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping of Wentworth Wash and its Tributary, RFCD, 12/3/2010.
- Floodplain Study FP-059-2010 - Castle Rock Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping of Castle Rock Wash and its Tributary, RFCD, 12/3/2010.
- Floodplain Study FP-060-2010 - Trails End Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping of Trails End Wash and its Tributary, 5/6/2010.
- Floodplain Study FP-061-2011 - Picture Rocks Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 1/14/2011. For background information, please see the Picture Rocks Alluvial Fan Floodplain Mapping page.
- Floodplain Study FP-062-2010 - West Speedway Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 5/6/2010.
- Floodplain Study FP-063-2010 - Camino de Oeste Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 6/30/2010.
- Floodplain Study FP-064-2010 - Del Cerro Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 5/26/2010.
- Floodplain Study FP-065-2010 - Roger Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 5/27/2010.
- Floodplain Study FP-066-2010 - Sweetwater Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 5/26/2010.
- Floodplain Study FP-067-2010 - Unnamed Wash 1 Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 6/17/2010.
- Floodplain Study FP-068-2009 - Ventana Canyon Wash and Esperero Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping, JE Fuller Hydrology & Geomorphology, Inc., 9/13/2010.
- Floodplain Study FP-069-2015 - Scott's Knob Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 6/1/2015.
- Floodplain Study FP-070-2003 - 12-10 Area Floodplain Mapping, RFCD, 6/3/2003.
- Floodplain Study FP-071-2011 - Race Track Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 7/15/2011.
- Floodplain Study FP-072-2013 - Canyon del Salto Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 8/5/2011.
- Floodplain Study FP-073-2008 - Friendly Village Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping, Tetra Tech, Inc., 10/7/2008.
- Floodplain Study FP-074-2011- Nanini Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 11/28/2011.
- Floodplain Study FP-075-2011 - Casas Adobes Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 11/28/2011.
- Floodplain Study FP-076-2011 - Campbell Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 2/21/2011.
- Floodplain Study FP-077-2012 - Via Entrada Wash Letter of Map Revision Technical Data Notebook, RFCD, 3/20/2012.
- Floodplain Study FP-078-2010 - Finger Rock Wash Letter of Map Revision Technical Data Notebook, RFCD, 10/15/2010. Report does not include all exhibits, as they are too large to place on the website. Please contact the District to obtain the Exhibits.
- Floodplain Study FP-079-2017 - Pegler Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 11/29/2012.
- Floodplain Study FP-080-2012 - Unnamed Wash #12 Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 11/29/2012.
- Floodplain Study FP-081-2013 - Tucson Mountains Unnamed # 02 and # 03 Washes Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 11/25/2013.
- Floodplain Study FP-082-2014 - Yuma Mine Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 1/20/2014.
- Floodplain Study FP-083-2014 - Deep Well Ranch and Rinconado Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping (Large file: 27 MB PDF), RFCD, 12/17/2014.
- Floodplain Study FP-084-2014 - North Manor Wash (including Hillcrest Wash) Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 12/23/2014.
- Floodplain Study FP-085-2014 - Green Valley Drainageways Basin Management Study (Large file: 40 MB PDF), Figure 4B and Figure 5 (Large file: 20 MB PDF), CMG Drainage Engineering, Inc., 6/27/2014.
- Floodplain Study FP-086-2015 - Catalina Foothills Unnamed Wash #5 Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 6/1/2015.
- Floodplain Study FP-087-2015 - Sabino Vista Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 3/12/2015.
- Floodplain Study FP-088-2015 - Tucson Mountains Unnamed # 10 Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 7/1/2015.
- Floodplain Study FP-089-2016 - Caliente Hills Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 6/23/2016.
- Floodplain Study FP-090-2014 - Airport Wash (South) Basin Management Study, CMG Drainage Engineering and Kimley Horn, 10/17/2014. This study includes several separate reports covering Hughes Wash, El Vado Wash, Santa Clara Wash and Valencia Wash.
- Floodplain Study FP-091-2008 - Pima Wash LOMR, CMG Drainage Engineering, 1/8/2008.
- Special Study 92 - Carmack Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD.
- Floodplain Study FP-093-2016 - Airport Wash Basin Management Study, CMG Drainage Engineering and Kimley Horn, 06/25/2016.
- Floodplain Study FP-094-2016 - Unnamed Wash #4 (Catalinas Mountains) Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 12/16/2016.
- Floodplain Study FP-095-2018 - Indian Hills Wash Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 7/10/2018.
- Floodplain Study FP-096-2018 - Red Butte/Saginaw Hill Area Technical Data Notebook for Hydrologic and Hydraulic Mapping, RFCD, 9/5/2018.
- Floodplain Study FP-097-2019 - Upper Santa Cruz RiskMAP Technical Data Notebook for Hydrologic and Hydraulic Mapping, JE Fuller, 03/25/2019.
- Floodplain Study FP-098-2019 - North Ranch Technical Data Notebook for Hydrologic and Hydraulic Mapping, Arroyo Engineering, 03/14/2019.
Silverbell Road LOMRs
Other Floodplain Studies
U.S. Army Corps of Engineers Reports
Additional
USACOE Reports (County employee access only)
Annual and Comprehensive Reports
The District creates Annual Reports and 5-year Comprehensive Program Reports to keep the public and public officials updated on the activities of the District. These reports also contain budget information. Please visit the Annual and Comprehensive Reports Page to access these documents.