LOCATION AND DESCRIPTION:
The Navajo Nation is the largest tribe in the U.S. The number of enrolled members is 300,048, as of July 2011. The 2010 census reported 173,667 Navajo citizens, 58.34% of all ethnic Navajos, live on the Navajo Nation's territory. The Navajo Nation encompasses 27,425 square miles of high desert and mountains in three states (AZ, NM, UT). The San Juan and Little Colorado Rivers drainage basins are two major watersheds draining reservation lands into the Colorado River in northern AZ. River channels within these drainage basins are dry throughout the year, except during summer monsoon and winter rains. During these high energy events, floods cause damage to the infrastructure essential to the survival of local communities. Fifteen (15) deaths were directly attributed to flash flood events between 1964 through 1984. The study will assess previous flood damage to residential, commercial, agricultural, environmental resources, and evaluate structural and non-structural measures to reduce flood damages in the region.
AUTHORIZATION: HR 2425; Sec 203, WRDA 00; Sec 520, WRDA 99; 902: N/A.
ACTIVITIES FOR FY 2023: None
FY 2024 PLANNED ACCOMPLISHMENTS: None
ISSUES AND OTHER INFORMATION: No work has been done on this Section 520 project since about 2010 (last funded in Fiscal Year 2008). Similar work has been continued under the Flood Plain Management Services (FPMS) program. No further actions are anticipated on this section 520 effort.
As of: 1 Mar 23
FINANCIAL SUMMARY: Feasibility
Estimated Federal Cost $3,255,000
Estimated Non-Federal Cost $1,018,000
Total Estimated Project Cost $4,273,000
Allocation thru FY22 $955,000
President’s Budget for FY23 $0
Conference Add for FY23 $0
Approved IIJA FY23 $0
Workplan for FY23 $0
President’s Budget for FY24 $0
Approved IIJA FY24 $0
Workplan for FY24 TBD
Balance to Complete After FY24 $2,300,000
CONGRESSIONAL INTEREST: Senators Kelly and Sinema, Representative Schweikert (AZ-01)
U.S. ARMY CORPS OF ENGINEERS – LOS ANGELES DISTRICT
915 WILSHIRE BLVD., SUITE 1109, LOS ANGELES, CA 90017
http://www.spl.usace.army.mil