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. . . RCIOOQ06,OH2 1******************************************** . HEC-2 WATER SURFACE PROFILES Version 4.6.2: May 1991 RUN DATE 09MAR06 TIME 16:05:36 ******************************************** x X XXXXXXX XXXXX XXXXX X X X X X X X X X X X X XXXXXXX XXXX X XXXXX XXXXX X X X X X X X X X X X X X XXXXXXX XXXXX XXXXXXX 09MAR06 16:05:36 *************************************** U. S. ARMY CORPS OF ENGINEERS HYDROLOGIC ENGINEERING CENTER 609 SECOND STREET, SUITE D DAVIS, CALIFORNIA 95616-4687 (916) 756-1104 *************************************** PAGE HEC-2 WATER SURFACE PROFILES THIS RUN EXECUTED 09MAR06 16:05:36 ************************************* Version 4.6.2: May 1991 ************************************* THE FOLLOWING CHANGES WERE MADE DURING THE 2006 OXBOW LEVEE LOMR. ************************************************************************ FILE: RC100Q06.DAT THIS 2006 OXBOW LOMR REVISED CONDITION MODEL: 11. INCORPORATED AS-BUILT SURVEY INFORMATION FOR THE OXBOW LEVEE THAT WAS CONSTRUCTED BETWEEN THE UPSTREAM SIDE OF THE LINCOLN AVENUE BRIDGE, CROSS SECTION 227437, AND THE DOWNSTREAM SIDE OF THE LINDEN STREET BRIDGE, CROSS SECTION 228637. 1-FT AS- BUILT TOPOGRAPHY DEVELOPED FROM LAND SURVEYS CONDUCTED BY KING SURVEYORS, INC. IN JUNE, 2005 WAS UTILIZED TO UPDATE THE LEFT BANK GEOMETRY FOR CROSS SECTION 228117. THE LEFT BANK OF CROSS SECTION 228117 WAS EXTENDED TO INCORPORATE THE GEOMETRY OF THE LEVEE INTO THE GR DATA. 12.DELETED THE TWO SPLIT FLOW CARDS FOR THE LINCOLN FLOW SPLIT DUE TO THE OXBOW LEVEE. ALL FLOW PREVIOUSLY LEAVING THE MAIN CHANNEL THROUGH THE LINCOLN FLOW SPLIT WILL NOW REMAIN IN THE MAIN CHANNEL. ************************************************************************ ************************************************************************ FILE: EX100Q06.DAT THIS 2006 OXBOW LOMR EXISTING CONDITION MODEL: 7. INCORPORATED PRE-PROJECT SURVEY INFORMATION FOR THE OXBOW LEVEE PROJECT AREA LOCATED BETWEEN THE UPSTREAM SIDE OF THE LINCOLN AVENUE BRIDGE, CROSS SECTION 227437, AND THE DOWNSTREAM SIDE OF THE LINDEN STREET BRIDGE, CROSS SECTION 228637. THE 1-FT PRE-PROJECT TOPOGRAPHY DEVELOPED FROM LAND SURVEYS CONDUCTED BY KING SURVEYORS, INC. IN APRIL, 2004 WAS UTILIZED TO UPDATE THE LEFT BANK GEOMETRY FOR CROSS SECTIONS 227397, 227437, AND 228117. THE LEFT BANK OF CROSS SECTION 228117 WAS REPOSITIONED TO BE PERPENDICULAR TO THE FLOW BETWEEN THE LEFT BANK STATION AND THE REPOSITIONED LINCOLN AVENUE LATERAL SPLIT FLOW WEIR SECTIONS. 8. CHANGED THE LEFT OVERBANK REACH LENGTHS OF CROSS SECTIONS 228117 AND 228637 DUE TO THE REPOSITIONING OF THE LEFT OVERBANK OF CROSS SECTION 228117. THE LEFT OVERBANK REACH LENGTHS FOR CROSS SECTIONS 228117 AND 228637 WERE CHANGED FROM 790 FEET AND 420 FEET TO 630 FEET AND 580 FEET, RESPECTIVELY. 9. REPOSITIONED AND UPDATED THE GEOMETRY OF THE TWO LINCOLN AVENUE LATERAL SPLIT FLOW WEIRS LOCATED BETWEEN CROSS SECTIONS 227437 AND 228637. THE WEIR SECTIONS WERE REPOSITIONED AND THE GEOMETRY WERE UPDATED BASED ON THE 1-FT PRE-PROJECT TOPOGRAPHY AND SPOT ELEVATIONS DEVELOPED FOR THE OXBOW LEVEE PROJECT AREA BY KING SURVEYORS, INC. IN APRIL, 2004. 10. TRUNCATED THE LEFT OVERBANK GEOMETRY FROM THE GEOMETRY DATA OF 09MAR06 16:05:36 THE LINDEN STREET CROSS SECTIONS 228637 AND 228687 DUE TO THESE AREAS NOT BEING HYDRAULICALLY CONNECTED TO THE MAIN CHANNEL WITH THE EXTENSION OF THE LINC DIVIDED FLOW PATH UPSTREAM OF LINDEN STREET. * * * * * * '* * * * * * * * * **"*"*"*... *..."** * *"* *"*"** * ** *..."* * * * *"* * * * * *...... *... *"* * * * * *...... * *... * * *"*"*"*"* * "* *"* * **"***** * **"* **** *** "*"*"**"**"** *'**** *** * ** ** *"* * ***** * * *"***"*"* ***"*"*..... * ****** FILE: CE100Q06.DAT THIS 2006 OXBOW LOMR CORRECTED EFFECTIVE MODEL: 1. COMBINES THE EFFECTIVE LOWER Q 100-, 50-, and 10-YEAR FLOODPLAIN MODEL (LOWQ99.DAT) FROM THE 1999 TIMBERLINE ROAD LOMR AND THE EFFECTIVE UPPER Q 100-, 50-, and 10-YEAR FLOODPLAIN MODEL IUPPERQ.DAT) FROM THE ORIGINAL 1994 FEMA STUDY. THE UPPERQ.DAT PAGE Page 1 of 49 P:\COFC2003\10 - Oxbow Levee\LOMR\FinDisk (Final)\Appendix G\FEMA Models\Revised Models\RClOOQ06.doc Created on 3/9/2006 4:06 PM