0 Occurrences 1 Occurrences 1 Occurrences 2 Occurrences 
Gage Location
City, County, and State of the levee system. Determined by the levee alignment location not the leveed area.
Hailey, Blaine County, Idaho
System ID
Unique identifier code for the levee system using 10 or 12 numbers in length.
6005000499
Operation and Maintenance Organization
Entity responsible for day-to-day management of the levee.
Flood Control District #9 of Idaho
Floodplain Management
Entities responsible for regulating activities that occur in areas prone to flooding.
FEMA Region 10
Last Assesment Date Last Risk Assessment or Formal Inspection.
12/19/2016
Levee Length
Combine length of all the levee system features including the embankments, floodwalls, closures where they exist for this system.
0.459 Miles Average Levee Height
The average height of the levee system. The levee profile viewer on the mapping window will show the actual levee height values for the length of the levee if available.
5 Feet Year Levee Constructed Year levee system was fully completed as a flood reduction project.
1969 Summary
General text description of the levee system with a summary of why the levee is there, and the benefits it provides.
Gage Levee is a non-federal levee on the left bank of the Big Wood River, Idaho. Flood Control District No. 9 of Idaho is the sponsor and responsible for operation and maintenance of the levee. The Initial Eligibility Inspection (IEI) Report was completed in February 1988 and subsequently instated into USACE’s Rehabilitation and Inspection Program. The original construction date is unknown. It is about 2,400 feet long; has an average crown width of 12 feet; riverside and landside slopes are about 1H:1V; and has an average embankment height of 4 feet.
Performance & Condition
General text description of the historical and anticipated performance of the levee, the people and property benefitting from the levee and who may be at risk of flooding, and actions to address areas of concern.
PLEASE NOTE: The following Risk Characterization is a description of risk associated with this levee system. It is currently undergoing review and may be updated in the future.
The LSOG considers the risk associated with the Gage Levee (LST ID 5095) to be Low (LSAC 4) for Prior to Overtopping and low (LSAC 4) for Overtopping. The levee was loaded to approximately 85% of its height in 2006; erosion was documented during this event. The levee is susceptible to erosion damage at the downstream end of the project where the revetment is displaced; there is a high likelihood of poor performance associated with future embankment erosion. The estimated loss of life is low and economic damages are also low.
Flooding Hazard
Historic Loading by Percentage of Height
Representative loading associated with historical flood information as a percentage of the levee height or overtopping.
Representative loading associated with historical flood information as a percentage of the levee height or overtopping.
0 Occurrences 1 Occurrences 1 Occurrences 2 Occurrences