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https://hdl.handle.net/11681/36333Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Echevarria-Doyle, Waleska. | - |
| dc.contributor.author | Biedenharn, David S. | - |
| dc.contributor.author | Little, Charles D., 1946- | - |
| dc.date.accessioned | 2020-04-23T12:47:15Z | - |
| dc.date.available | 2020-04-23T12:47:15Z | - |
| dc.date.issued | 2020-04 | - |
| dc.identifier.govdoc | MRG&P Report No. 32 | - |
| dc.identifier.uri | https://hdl.handle.net/11681/36333 | - |
| dc.identifier.uri | http://dx.doi.org/10.21079/11681/36333 | - |
| dc.description | MRG&P Report | - |
| dc.description.abstract | This report integrates information from previous geomorphic studies coupled with new analysis to provide a comprehensive geomorphic characterization of the Lake Providence (River Mile [RM] 487.2 Above Head of Passes [AHP]) to Old River Control Complex, (RM 317 AHP) reach from the early-1800s to present. Individual components of this study included the following: historical geomorphic studies, development of an events timeline, specific gage records, stage and flow duration trends, trends in water surface slopes, bed material studies, suspended sediment data, channel geometry data, and effects of channel improvement features (cutoffs, dike, revetment, and dredging). These individual assessments were consolidated to develop an overall assessment of how the study reach has evolved since the early-1800s. | en_US |
| dc.description.sponsorship | Mississippi River Geomorphology and Potamology Program (U.S.) | en_US |
| dc.description.tableofcontents | Abstract ................................ ................................ ................................ ................................ ................... ii Figures and Tables ................................ ................................ ................................ ................................ . iv Preface ................................ ................................ ................................ ................................ .................... vi 1 IIntroduction ................................ ................................ ................................ ................................ ..... 1 1.1 1.1 Background ................................ ................................ ................................ .................... 1 1.2 1.2 Objective ................................ ................................ ................................ ........................ 1 1.3 1.3 Approach ................................ ................................ ................................ ........................ 2 2 Geomorphic Changes Early-1800s to Present................................ ................................ ............ 3 2.1 2.1 Event timeline ................................ ................................ ................................ ................ 3 2.2 Pre -cutoff Period (early-1800s to 1929) ................................ ................................ ...... 4 2.2.1 Early-1800s to 1880s ................................................................................................. 4 2.2.2 Late-1880s to 1929 ................................................................................................... 8 2.3 Cutoff Period (1929 – 1942) ................................ ................................ ...................... 12 2.4 Post-cutoff Period (1943 – Present) ................................ ................................ .......... 14 2.4.1 Channel improvements (revetments, dikes, and dredging) .................................... 15 2.4.2 Flow regime in the Post-cutoff Period ...................................................................... 18 2.4.3 Specific gage records ............................................................................................... 19 2.4.4 Water surface slope trends ...................................................................................... 23 2.4.5 Stage duration changes............................................................................................ 31 2.4.6 Bed material characteristics .................................................................................... 40 2.4.7 Channel geometry trends ......................................................................................... 55 2.4.8 Suspended sediment trends .................................................................................... 57 3 Summary ................................ ................................ ................................ ................................ ....... 59 3.1 3.1 Pre -cutoff Period (early 1800s to 1929) ................................ ................................ .... 59 3.2 Cutoff Period (1929–1942) ................................ ................................ ........................ 60 3.3 Post-cutoff Period (1943 to Present) ................................ ................................ ......... 61 3.3.1 Channel improvements features .............................................................................. 61 3.3.2 Channel stability ........................................................................................................ 61 3.3.3 Bed material trends .................................................................................................. 62 3.3.4 Sediment load trends ............................................................................................... 63 4 Recommendations ................................ ................................ ................................ ....................... 64 References ................................ ................................ ................................ ................................ ............ 68 Unit Conversion Factors ................................ ................................ ................................ ...................... 70 Acronyms and Abbreviations ................................ ................................ ................................ .............. 71 Report Documentation Page | - |
| dc.format.extent | 80 pages / 4.57 MB | - |
| dc.format.medium | PDF/A | - |
| 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. 32 | - |
| dc.rights | Approved for Public Release; Distribution is Unlimited | - |
| dc.source | This Digital Resource was created in Microsoft Word and Adobe Acrobat | - |
| dc.subject | Lake Providence (La.)—Geomorphology | en_US |
| dc.subject | Mississippi River—Alluvial plain | en_US |
| dc.subject | River channels | en_US |
| dc.subject | Mississippi River | en_US |
| dc.title | Lake Providence to Old River geomorphology assessment | 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 32.pdf | 4.57 MB | Adobe PDF |  View/Open |