Levee Inspection Case Study United States Army Corps of Engineers Kansas City District
29 March 2012 Rijkswaterstaat Annual Levee Inspection Meetings Jason Sheeley, U.S. Army Corps of Engineers Geospatial Section Chief - Kansas City District Mapping Chief – Modeling, Mapping and Consequences Production Center
Overview Kansas City District Statistics National Perspective - U.S. Army Corps of Engineers (USACE) Levee Safety Program ► Toolkit
• National Levee Database (NLD) • Levee Inspection System (LIS)
Kansas City District Case Studies ► “Ground
►2011
level” execution of the routine program
flood contingency operations
Kansas City
Missouri River Basin 3,767 km – longest river in North America 1.3 million km2 – parts of 10 states
Omaha District
Kansas City District
Kansas City District / The Netherlands Population ~ 5 million (16.8 million) Total area = 286,600 km2 (34,000 km2) ► Protected
by Levees = 2,375 km2 (<1%) (~7% of)
Missouri River Floodplain = 3,574 km2 (~10.5% of) ► Area
protected by levees = 2,070 km2 (61%) (~6% of)
► 2011
flooded area = 1,210 km2 (34%) (~4%) ► Flooded area behind breached/overtopped levees = 313 km2 (<1%)
Kansas City District Levees Federal and Non-Federal
Kansas City Levee Program Statistics
Levees in Kansas, Missouri and Nebraska 156 levee systems, 1,035 total levee miles 53 federal levees (federally constructed) 103 non-federal levees (but eligible for rehabilitation assistance)
Typical Urban Levees Confluence of the Kansas and Missouri Rivers â&#x20AC;&#x201C; May 2007 Armourdale, CID, Fairfax and North Kansas City Levees.
Typical Agricultural Levee Brunswick Non-Federal Levee, 2007
National Levee Database (NLD)
MRLS 488-L
Example Cross Section Developed from NLD
2011 FloodFederal Levee Status
2011 Flood Non-Federal Levee Status
Levee Inspection System Hardware
Levee Inspection System Software GIS Toolbar â&#x20AC;&#x201C; Works with GPS and camera to collect information during inspection
Levee Inspection System Software Basic Reporting â&#x20AC;&#x201C; Review Inspection Results
Item list for re-inspection verification
Levee Inspection System Software Advanced Reporting â&#x20AC;&#x201C; USACE-wide standardized reports and underlying database
Missouri River Levee System 488-L
Missouri River Levee System 488-L
Missouri River Levee System 488-L
2009 Levee Inspection Results â&#x20AC;&#x201C; Federal Levees
Kansas City Levee Routine Program Staffing
Levee Safety Program Manager Data Manager (1 + apprentice) Inspectors (2) – 1 Federal and 1 Non-Federal Project Engineers (Geotechnical and Structural) ► 13
leads for 175 flood control projects (156 levees, 19 channel projects)
Design, Geotechnical and Geospatial Branches ► Approximately
130 engineers and scientists
Missouri River Levee System 488-L Annual Inspection (LIS) Periodic Inspection Conducted every 5 yrs Identify deficiencies posing hazards to life or property Highlight primary system deficiencies Periodic Assessment Conducted every 10 yrs PI + other stuff
Missouri River 2011 Flood Record Snowpack + Record Rainfall =
Record Release & Record Duration Flood
Omaha District
Kansas City District
Kansas City District – 2011 Flood Emergency Operations for 142 days ► 26
May to 15 October ► First levee breach 13 June ► Levee failure risks subside 01 September
Report Card Non Federal Levees
Federal Levees
Breaches
11
0
Overtopping w/o Breach
4
0
Stability Problems
4
1
Underseepage Problems
Many
Many
Scour Problems
Many
5
2011 Flood – Missouri River (130 Miles) - Video
Flood Operations Staffing Levee Sponsors – Daily inspections and maintenance ► Each
levee system has a sponsor responsible for operations and maintenance
Technical Response Teams – Requests for assistance ► Staffed
as needed to respond to the event
Liaison Teams – Sponsor coordination, technical guidance ► 15
teams, 2 persons each team
Staff Duty Officers – Emergency Operations Center ► Engineering
– Coordinates technical response teams ► GIS* – Daily and as-needed maps and reports * Geographic Information Systems
Sand Boils
Sand Boils
Sand Boil Tracking Map L-488
Scour - L488
Scour L488
30-ft Scour at levee toe
River Scour Protection
Rock Placement L488
Missouri River Levee System – L488 Video (0:26 – 2:20; 2:52 - 3:15) “Flood fight” “We will not lose this levee”
NWK – Federal Levee 488-L Emergency Rock Placements due to scour 3/29/2012
47
NWK – Federal Levee 488-L Emergency Rock Placements due to scour 3/29/2012
48
Three Stage Levee Management Cycle Routine Program ► Annual
inspection, periodic inspection/assessment ► Ensures levees perform as designed ► Coordination among USACE and levee sponsors ► Trained staff
Emergency Operations ► Daily/recurring
inspection process ► Sponsors/USACE work together ► Emergency mitigation activities as needed
Post-Flood Rehabilitation ► Repairs
prior to next flood season
Levee Breach Points
NWK – Non-Federal Levee Kansas Dept. of Corrections Damages due to overtopping and breaching. 3/29/2012
50
NWK- Big Lake Area (Non-Feds Union Township & Holt Co. #10) Damages Shown – Several feet of sediment cleared from road. 3/29/2012
51
NWK – Holt County Road damage due to overtopping and breaching. 3/29/2012
52
NWK – Non-Federal Levee – Canon Damages due to overtopping and breaching. 3/29/2012
53
NWK – Non-Federal Levee Rushville-Sugar Lake Damages due to overtopping and breaching. 3/29/2012
54
NWK â&#x20AC;&#x201C; Iatan Powerplant Damages due erosion/scour. 3/29/2012
55
NWK â&#x20AC;&#x201C; Non-Federal Levee Leavenworth/Sherman Airport Damages due to overtopping and breaching. 3/29/2012
56
NWK – Non-Federal Levee Wolcott, Section 2 Damages due to overtopping and breaching. (Hwy 435) 3/29/2012
57
2011 Flood Daily Inspection Activities Joint aerial/field daily inspections, Video “Consistency” District Staff ► COL
Anthony Hofmann, Commander ► Jud Kneuvean, Emergency Operations ► Susan Abbott, Operations, Aerial Reconnisance ► Cliff Sanders, Levee Inspector, Technical Response ► Robert Finneran, Levee Inspector ► Mike Dulin, Patrick Kline, Lisa Hook, Tracy Brown, Alex Ubben – Surveys and Maps • Operated Levee Inspection System for Aerial Reconnaissance (2:05)
Questions