Cache Slough Landowners Meeting LITTLE EGBERT TRACT PROJECT Flood - - PowerPoint PPT Presentation

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Nov 07, 2022 269 likes •349 views

Cache Slough Landowners Meeting LITTLE EGBERT TRACT PROJECT Flood Hydraulics Don Trieu P.E. May 23,2019 Little Egbert Tract (RD 2084) Located within the Yolo Bypass Floodway 3100 acres Flow Easement with restricted deed elevation

SLIDE 1

Cache Slough Landowners Meeting

LITTLE EGBERT TRACT PROJECT

Flood Hydraulics

Don Trieu P.E.

May 23,2019

SLIDE 2

Little Egbert Tract (RD 2084)

Located within the Yolo Bypass Floodway
3100 acres
Flow Easement with restricted deed elevation of

~10 to 15 ft NAVD88

Flooded in Feb 1986 and Jan 1997

Little Egbert Tract

SLIDE 3

Lower Yolo Bypass Flooding Dynamics

Restricted Height Levee Project Levee Restricted Height Levee Overtops/Breach Restricted Height Levee Overtops/Breach

SLIDE 4

Jan. 1997 Flood Damage

SLIDE 5

Conceptual Alternative Features

SLIDE 6

Conceptual Alternative Hydraulic Impacts

Moderate Flood Events Extreme Flood Events