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https://hdl.handle.net/11681/45165Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Leech, James R. | - |
| dc.creator | Coastal and Hydraulics Laboratory (U.S.) | - |
| dc.date.accessioned | 2022-08-19T14:40:43Z | - |
| dc.date.available | 2022-08-19T14:40:43Z | - |
| dc.date.issued | 2022-08 | - |
| dc.identifier.govdoc | MRG&P Report No. 41; Volume 7 | - |
| dc.identifier.uri | https://hdl.handle.net/11681/45165 | - |
| dc.identifier.uri | http://dx.doi.org/10.21079/11681/45165 | - |
| dc.description | MRG&P Report | en_US |
| dc.description.abstract | The Red River, Atchafalaya River, and the Old River Control Complex (ORCC) Outflow Channel Adaptive Hydraulics two-dimensional depth averaged sediment model (AdH-2D-SED) was used to evaluate the short-term and system-wide sedimentation effects of modifying the operation schedule at ORCC. The changes evaluated were increasing and decreasing the percentage of flow that is diverted to the Atchafalaya River from the Mississippi River at the ORCC and modifying the distributions through four ORCC structures. Sedimentation effects for several operation scenarios were compared to a Base condition for each water year that represented the existing operation protocols. Four dredging scenarios were developed and analyzed. Additionally, two structure options were developed and analyzed. The scenario analyses presented in this report are intended to identify large trends and to make gross assessments of the potential impacts of various proposed operational changes to the ORCC. | en_US |
| dc.description.sponsorship | Mississippi River Geomorphology and Potamology Program (U.S.) | en_US |
| dc.description.tableofcontents | Abstract ...................................................................................................................................... ii Contents .................................................................................................................................... iii Figures and Tables ....................................................................................................................... vii Preface .................................................................................................................................. xxviii 1 Introduction .......................................................................................................................... 1 1.1 Background ............................................................................................................ 1 1.2 Objectives .............................................................................................................. 3 1.3 Approach ............................................................................................................... 3 2 Model Development and Calibration ....................................................................................... 5 2.1 Model boundary ...................................................................................................... 5 2.2 Model material types ............................................................................................... 6 2.3 Hydraulic boundary conditions ................................................................................. 8 2.4 Sediment transport capabilities ............................................................................... 8 2.5 Model calibration.................................................................................................... 9 2.6 Model scenarios .................................................................................................. 11 3 Water Year (WY) 2008 .......................................................................................................... 13 3.1 Base Run bed displacement data (BDD) ................................................................. 13 3.2 Scenario 3 bed displacement data ........................................................................ 18 3.3 Scenario 8a bed displacement data ...................................................................... 22 3.4 Scenario 9 bed displacement data ........................................................................ 26 3.5 Dredge placement scenarios 11–14 bed displacement data ................................... 29 3.6 Structure Options Scenario 19 and 20 ................................................................... 34 3.7 WY2008 bed sediment volume change (BSVC) ....................................................... 36 3.7.1 Material 1 Base Run and Scenarios 3–10................................................... 37 3.7.2 Material 2 Base Run and Scenarios 3–10................................................... 40 3.7.3 Material 1 BSVC dredge placement Scenarios 11–14 ................................. 43 3.7.4 Material 2 BSVC dredge placement Scenarios 11–14 ................................. 44 3.7.5 Material 1 BSVC Structure Options Scenarios 19 and 20 ............................. 45 3.7.6 Material 2 BSVC Structure Options Scenarios 19 and 20 ............................. 46 4 WY2012 ............................................................................................................................. 48 4.1 Base Run bed displacement data .......................................................................... 48 4.2 Scenario 3 bed displacement data ........................................................................ 50 4.3 Scenario 8a bed displacement data (BDD) ............................................................. 51 4.4 Scenario 9 BDD ................................................................................................... 53 4.5 Dredge Placement Scenarios 11–14 BDD .............................................................. 55 4.6 Structure Options Scenarios 19 and 20 ................................................................. 58 4.7 WY2012 BSVC ..................................................................................................... 59 4.7.1 Material 2 Base Run and Scenarios 3–10................................................... 63 4.7.2 Material 1 BSVC Dredge Placement Scenarios 11–14 ................................. 66 4.7.3 Material 2 BSVC Dredge Placement Scenarios 11–14 ................................. 67 4.7.4 Material 1 BSVC Structure Options Scenarios 19 and 20 ............................. 67 4.7.5 Material 2 BSVC Structure Options Scenarios 19 and 20 ............................. 68 5 WY2013 ............................................................................................................................. 69 5.1 Base Run BDD ..................................................................................................... 69 5.2 Scenario 3 BDD ................................................................................................... 71 5.3 Scenario 8a BDD ................................................................................................. 72 5.4 Scenario 9 BDD ................................................................................................... 73 5.5 Dredge Placement Scenarios 11–14 BDD .............................................................. 75 5.6 Structure Options Scenario 19 and 20 ................................................................... 78 5.7 WY2013 BSVC ..................................................................................................... 79 5.7.1 Material 1 Base Run and Scenarios 3–10................................................... 80 5.7.2 Material 2 Base Run and Scenarios 3–10................................................... 85 5.7.3 Material 1 BSVC Dredge Placement Scenarios 11–14 ................................. 88 5.7.4 Material 2 BSVC Dredge Placement Scenarios 11–14 ................................. 89 5.7.5 Material 1 BSVC Structure Options Scenarios 19 and 20 ............................. 89 5.7.6 Material 2 BSVC Structure Options Scenarios 19 and 20 ............................. 90 6 Results ............................................................................................................................... 91 6.1 Base Run and Scenarios 3–10 .............................................................................. 91 6.2 Dredge Placement Scenarios 11–14 ..................................................................... 94 6.3 Structures Options Scenarios 19 and 20 ................................................................ 96 7 Conclusions and Recommendations...................................................................................... 98 7.1 Conclusions ........................................................................................................ 98 7.1.1 How much sediment is being supplied by the Red River to the Atchafalaya? ........................................................................................... 98 7.1.2 What is the sediment transport capacity of the ORCC combined outflow channel under a variety of potential operational schemes? .......................... 99 7.1.3 Are there potential structural solutions on either side of ORCC that could facilitate sediment transport through the system? .............................. 99 7.2 Recommendations ............................................................................................... 99 References ............................................................................................................................. 100 Appendix A: WY2008 Bed Displacement Data (BDD) .................................................................. 101 A.1 Base Run .......................................................................................................... 101 A.2 Scenario 3 ........................................................................................................ 109 A.3 Scenario 4 ........................................................................................................ 120 A.4 Scenario 5 ........................................................................................................ 125 A.5 Scenario 6 ........................................................................................................ 130 A.6 Scenario 7 ........................................................................................................ 135 A.7 Scenario 8a ....................................................................................................... 140 A.8 Scenario 8b ....................................................................................................... 145 A.9 Scenario 9 ........................................................................................................ 150 A.10 Scenario 10 ...................................................................................................... 162 A.11 Dredge Displacement Scenarios.......................................................................... 167 A.11.1 Scenario 11 ........................................................................................... 167 A.11.2 Scenario 12 ........................................................................................... 172 A.11.3 Scenario 13 ........................................................................................... 177 A.11.4 Scenario 14 ........................................................................................... 182 A.12 Structure Options ............................................................................................... 187 A.12.1 Scenario 19 ........................................................................................... 187 A.12.2 Scenario 20 ........................................................................................... 192 Appendix B: WY2008 Bed Sediment Volume Change (BSVC) ....................................................... 197 B.1 Material 1 Base Run and Scenarios 3–10 ............................................................ 197 B.2 Material 2 Base Run and Scenarios 3–10 ............................................................ 204 B.3 Material 1 Dredge Placement Scenarios 11–14 ................................................... 211 B.4 Material 2 Dredge Placement Scenarios 11–14 ................................................... 215 B.5 Material 1 Structure Options 19 and 20 ............................................................... 219 B.6 Material 2 Structure Options Scenario 19 and 20 ................................................. 222 Appendix C: WY2008, WY2012, and WY2013 Accumulated Coarse Sediment Load ....................... 225 Appendix D: WY2012 BDD........................................................................................................ 230 D.1 WY2012 Base Run ............................................................................................. 230 D.2 Scenario 3 ........................................................................................................ 241 D.3 Scenario 4 ........................................................................................................ 252 D.4 Scenario 5 ........................................................................................................ 257 D.5 Scenario 6 ........................................................................................................ 262 D.6 Scenario 7 ........................................................................................................ 267 D.7 Scenario 8a ....................................................................................................... 272 D.8 Scenario 8b ....................................................................................................... 277 D.9 Scenario 9 ........................................................................................................ 282 D.10 Scenario 10 ...................................................................................................... 287 D.11 Dredging Scenario 11–14 .................................................................................. 292 D.11.1 Scenario 11 ........................................................................................... 292 D.11.2 Scenario 12 ........................................................................................... 297 D.11.3 Scenario 13 ........................................................................................... 302 D.11.4 Scenario 14 ........................................................................................... 307 D.12 Structure Options ............................................................................................... 312 D.12.1 Scenario 19 ........................................................................................... 312 D.12.2 Scenario 20 ........................................................................................... 317 Appendix E: WY2012 BSVC ...................................................................................................... 322 E.1 Material 1 Base Run and Scenarios 3–10 ............................................................ 322 E.2 Material 2 Base Run and Scenarios 3–10 ............................................................ 329 Report No. 41; Vol. 7 vi E.3 Material 1 Dredge Placement Scenarios 11–14 ................................................... 336 E.4 Material 2 Dredge Placement Scenarios 11–14 ................................................... 340 E.5 Material 1 Structure Options Scenarios 19 and 20 ................................................ 344 E.6 Material 2 Structure Options Scenarios 19 and 20 ................................................ 347 Appendix F: WY2013 Bed Displacement Data ............................................................................ 350 F.1 Base Run .......................................................................................................... 350 F.2 Scenario 3 ........................................................................................................ 361 F.3 Scenario 4 ........................................................................................................ 372 F.4 Scenario 5 ........................................................................................................ 377 F.5 Scenario 6 ........................................................................................................ 382 F.6 Scenario 7 ........................................................................................................ 387 F.7 Scenario 8a ....................................................................................................... 392 F.8 Scenario 8b ....................................................................................................... 397 F.9 Scenario 9 ........................................................................................................ 402 F.10 Scenario 10 ...................................................................................................... 407 F.11 Dredging Scenarios ............................................................................................ 412 F.11.1 Scenario 11 ........................................................................................... 412 F.11.2 Scenario 12 ........................................................................................... 417 F.11.3 Scenario 13 ........................................................................................... 422 F.11.4 Scenario 14 ........................................................................................... 427 F.12 Structure Options ............................................................................................... 432 F.12.1 Scenario 19 ........................................................................................... 432 F.12.2 Scenario 20 ........................................................................................... 437 Appendix G: WY2013 BSVC ...................................................................................................... 442 G.1 Material 1 Base Run and Scenarios 3–10 ............................................................ 443 G.2 Material 2 Base Run and Scenarios 3–10 ............................................................ 453 G.3 Material 1 Dredge Placement Scenarios 11–14 ................................................... 460 G.4 Material 2 Dredge Placement Scenarios 11–14 ................................................... 464 G.5 Material 1 Structure Options Scenario 19 and 20 ................................................. 469 G.6 Material 2 Structure Options Scenario 19 and 20 ................................................. 472 Appendix H: Bed Sediment Analysis ...........................................................................................475 H.1 Model sediment bed gradation............................................................................ 475 H.2 ORCC Outflow Channel sediment bed gradation analysis ....................................... 475 H.3 Atchafalaya River sediment bed gradation analysis ............................................... 478 H.4 Red River sediment bed gradation analysis .......................................................... 480 Report Documentation Page (SF 298) ....................................................................................... 485 | - |
| dc.format.extent | 514 pages / 50.99 MB | - |
| dc.format.medium | - | |
| dc.language.iso | en_US | en_US |
| dc.publisher | United States. Army. Corps of Engineers. Mississippi Valley Division. | en_US |
| dc.publisher | United States. Mississippi River Commission. | - |
| dc.publisher | Coastal and Hydraulics Laboratory (U.S.) | - |
| dc.publisher | Engineer Research and Development Center (U.S.) | - |
| dc.relation.ispartofseries | MRG&P Report (Mississippi River Geomorphology and Potamology Program (U.S.)) ; no. MRG&P Report No. 41; Volume 7 | - |
| dc.rights | Approved for Public Release; Distribution is Unlimited | - |
| dc.source | This Digital Resource was created in Microsoft Word and Adobe Acrobat | - |
| dc.subject | Atchafalaya River (La.) | en_US |
| dc.subject | Dredging | en_US |
| dc.subject | Hydrodynamics | en_US |
| dc.subject | Mississippi River | en_US |
| dc.subject | Red River (Tex.-La.) | en_US |
| dc.subject | River channels | en_US |
| dc.subject | Sedimentation and deposition | en_US |
| dc.subject | Sediment transport--Mathematical models | en_US |
| dc.title | Technical assessment of the Old, Mississippi, Atchafalaya, and Red (OMAR) Rivers : Red and Atchafalaya Rivers AdH model | en_US |
| dc.type | Report | en_US |
| Appears in Collections: | MRG&P Report | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| MRG&P Report No 41-Vol 7.pdf | 50.99 MB | Adobe PDF |  View/Open |