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Posted 5/1/2017

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Contact
Program Manager
(309)794-5704
cemvr-pm-web@usace.army.mil

Location
N/A

Description
Since 2008, the Rock Island District has produced freeboard estimates for levee systems along the Mississippi and Illinois Rivers. These estimates are generated using water surface elevation results from flow frequency studies, National Weather Service river gage forecasts and insipient overtopping elevations for each levee district. These freeboard estimates are then displayed on maps used to brief and inform internal and external customers.

To provide freeboard estimates at the segment and sub-segment resolution, existing RAS models and surveyed levee geometry from the National Levee Database would be leveraged to perform freeboard estimate calculations at each levee centerline and floodwall line vertex, according to forecast and current crest stages at NWS forecast gages.

Status
This is a potential new start. Project is awaiting funding.

Authority
FM - Floodplain Management Services

Summarized Project Costs

Estimated Federal Cost  N/A 
Estimated Non-Federal Cost  N/A 
Estimated Total Project Cost  N/A 
Allocations Prior to Current FY 2017 Cost  $0 
Current FY 2017 Allocation (received to date)  $0 
Current FY 2017 Total Capability  $25,000 

Major Work Item Current Year
FY 2017:
No work at this time. Awaiting funding