US Army Corps of Engineers
Rock Island District

District Projects

National Levee Database

Published March 8, 2019

Project Manager
(309) 794-5165

Rock Island District

The National Levee Database (NLD), developed by the U.S. Army Corps of Engineers (USACE), is the focal point for comprehensive information about our nation's levees. The database contains information to facilitate and link activities, such as flood risk communication, levee system evaluation for the National Flood Insurance Program (NFIP), levee system inspections, flood plain management, and risk assessments. The NLD continues to be a dynamic database with ongoing efforts to add levee data from federal agencies, states, and tribes. The database is only as good as the information that it contains with continual efforts needed to assure that the information is correct and current.


Information associated with Public Law 84-99 Flood Risk Management Systems have been field surveyed and entered into the National Levee Database. The Rock Island District has completed entering information on over 825 linear miles of these qualifying levee systems along the Upper Mississippi River and tributaries.

Quality assurance needs to be performed of this data.

OM - Operations and Maintenance
Flood Control & Coastal Emergencies (FCCE) 
P.L. 84-99

Summarized Project Costs

Estimated Federal Cost  $3,100,000 
Estimated Non-Federal Cost  $0 
Estimated Total Project Cost  $0 
Allocations Prior to FY 2019  $0 
FY 2019 Allocation  $0 
FY 2019 Total Capability  $70,000

Major Work Item Current Year
FY 2019:
The response to the 2008 flood along the Mississippi River may have impacted elevation levels of those impacted levee systems in the District. The current centerline elevations of those levees in the NLD is in the National Levee database along with previous survey data.

The USACE is charged in WRDA 2007 with creating an inventory of federally constructed levees. The 2013 discovery of archived documents from the 1940s indicate federal involvement in construction of potentially several hundred miles of levees under the continuing authorities of early 1940’s Flood Control Acts. These levees are not currently enrolled in the PL84-99 program. To fulfill the mandate contained in WRDA, USACE is researching the potential policy implications for the NLD survey, and subsequent inspection and levee risk screening tasks of the Levee Safety Program and under what authority will the surveys be undertaken. Costs if required to conduct the NLD survey of these levees are similar to the FY 2012 allocation.