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" II e . ., ,I! .. , , l*******************************************i . HEC-2 WATER SURFACE PROFILES . RCUPR05.0H2 fro"", 20Cls 54vJy 5~Pfor~:'/\j RAt' LCl"'" R Version 4.6,2; May 1991 Rm, DATE 30DEC05 TIME 10:03:55 ******************************************** 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 30DEC05 10:03:55 {f~t+:\fe. CO'" J:~~~" ~,.. 2'o~ ro LOM R.. **************;************************ U.S. ARMY CORPS OF ENGINEERS HYDROLOGIC ENGINEERING CENTER 609 SECOND STREET, SUITE D DAVIS, CALIFORNIA 95616-4687 (916) 756-1104 100 - 'lev (VIocJ~1 o xbo ~ 1- e-telL *************************************** HEC-2 WATER SURF.ACE PROFILES THIS RUN EXECUTED 30DEC05 ... '* '*... ** *......... ** **............ **.......................................... ** * Version 4.6.2; May 1991 ......... * **............... ** ** * ** **........................... ** **............ THE FOLLOWING CHANGES WERE MADE DURING THE 2005 REMOVAL ACTION LOMR. ** **............ ***............... ** **... **........................ ***............ **....................................... 11""''''''''''''''''''''''''''''''''''''''''''' **... FILE: RCUPR05.DAT THIS 2005 REMOVAL ACTION LOMR REVISED CONDITION MODEL: 9. INCORPORATES AS-BUILT TOPOGRAPHY FOR THE REMOVAL ACTION SITE THE I-FT AS-BUILT TOPOGRAPHY FOR THE REMOVAL ACTION SITE WAS DEVELOPED FROM POST-PROJECT LAND SURVEYS CONDUCTED BY BY NORTHERN ENGINEERING IN JUNE 2005. GEOMETRY FOR THE FOLLOWING CROSS SECTIONS WERE UPDATED UTILIZING THE AS- BUILT SURVEY TOPOGRAPHY WERE JI.PPROPRIJI.TE; 229322, 229477, AND 229757. ...... ** **......... *... *...... ** * * ** * * * * * * ** *... * * * * * * * * *... * * * * *... * * * * * * * * * *... ** *** * * * * * * * * ** * * ** ** * * * * * * * * * * * * ** * * * * ** *... * * * * * ** * * * * * * * * **.,...,..... * * * *...... * *.,.. * * *.,..... *... **... * *.......... FILE: CEUPR05.DAT THIS 2005 REMOVAL ACTION LOMR CORRECTED EFFECTIVE MODEL: 1. IS BASED ON THE REVISED CONDITION MODEL UPPER-RC.DAT FROM THE POWER PLANT DROP STRUCTURE/BOAT CHUTE LOMR CONDUCTED IN, 2001. THE 2001 POWER PLANT DROP STRUCTURE/BOAT CHUTE LOMR REVISED, THE 1994 UPPER.DAT FEMA MODEL BY ADDING TWO CROSS SECTIONS (230193 AND 230355) TO REFLECT THE NEW GRADING ASSOCIATED WITH THE DROP STRUCTURE. 2. COMPUTES 100-, 50-, AND 10-YEAR WATER SURFACE PROFILES FOR THE MAIN CHANNEL. DISCHARGES UTILIZED TO COMPUTE THE WATER SURFACE PROFILES ARE BASED ON THE SPLIT FLOW DISCHARGES DETERMINED FROM THE 1994 UPPERQ.DAT MODEL. 3. CHANGED THE STARTING WATER SURFACE ELEVATIONS FOR ALL PROFILES TO MATCH THE OUTPUT OF THE EFFECTIVE LOWER 100-, 50-, AND 10-YEAR FLOODPLAIN MODEL FROM THE 1999 TIMBERLINE ROAD LOMR LOMR (LOWQ99.DAT). 4. INCORPORATES UPDATED PRE-PROJECT TOPOGRAPHY BETWEEN THE DOWNSTREAM SIDE OF LINDEN STREET, CROSS SECTION 228637, AND JUST DOWNSTREAM OF THE B.N':R.R., CROSS SECTION 229997. TWO SETS OF TOPOGRAPHY WERE UTILIZED TO UPDATE THE HYDRAULIC MODEL. I-FT PRE- PROJECT TOPOGRAPHY FOR THE REMOVAL ACTION SITE WAS DEVELOPED FROM LAND SURVEYS CONDUCTED BY NORTHERN ENGINEERING IN 2004. PRE-PROJECT TOPOGRAPHY FOR PORTIONS OF THE LEFT OVERBANK THAT WERE NOT INCLUDED IN THE TOPOGRAPHY DEVELOPED FOR THE REMOVAL ACTION SITE WERE OBTAINED FROM THE COFC. THE COFC 2-FT TOPOGRAPHY WAS DEVELOPED FROM AERIAL PHOTOS TAKEN IN 1999. GEOMETRY FOR THE FOLLOWING EFFECTIVE CROSS SECTIONS WERE UPDATED UTILIZING THE PRE-PROJECT TOPOGRAPHY; 228637, 228687, AND 229477. WHILE UPDATING THE GEOMETRY FOR CROSS SECTION 229477 IT WAS DECIDED TO SHORTEN THE GR DATA FOR THE RIGHT OVERBANK. THus, CROSS SECTION 229477 WAS SHORTENED BY APPROXIMATELY BOO FEET. 5. INCLUDES THE ADDITION OF TWO CROSS SECTIONS AT THE DOWNSTREAM 30DEC05 10:03:55 (229322) AND THE UPSTREAM (229757) ENDS OF THE REMOVAL ACTION PROJECT SITE. PRE-PROJECT TOPOGRAPHY WAS UTILIZED TO DEVELOP THE GEOMETRY FOR CROSS SECTIONS 229322 AND 229757. 6. CHANGED THE X3 CARD FOR CROSS SECTION 229477 INTO AN ET CARD AND ADJUSTED THE LEFT ENCROACHMENT STATION OF 6770 ON THE X3 CARD TCY STATION 7165 ON THE ET Cl\RD TO REPRESENT THE INEFFECTIVE FLOW IN THE LEFT OVERBANK CAUSED BY BUILDINGS UNDER CONSTRUCTION IN THE EFFECTIVE CONDITION PHOTO (IMPACTS SOD-YEAR FLOWS ONLY). 7. CHANGED THE LEFT ENCROACHMENT STATION OF THE X3 CARD FOR CROSS SECTION 229997 FROM STATION 8170 TO STATION 8170.1 SO THAT THE ENCROACHMENT STATION WOULD LIE WITHIN THE GEOMETRY DATA. B. HAS A -1 INSERTED INTO FIELD 7 OF THE J2 CARD TO COMPUTE CRITICAL DEPTH AT ALL CROSS SECTIONS. P:\CORETEC02-03\FinDisk (Final)\Appendix G\FEMA Models\Revised Models\RCUPR05.doc Page 1 0f38 PAGE 10:03:55 PAGE 2 Created on 12/30/2005 10:05 AM