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A 1:4 scale Froude-based hydraulic model of a single box culvert with flap gate was studied in Reclamations Water Resources Research Laboratory. The main focus of the study was on verification of the operating characteristics and ...
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A 1:4 scale Froude-based hydraulic model of a single box culvert with flap gate was studied in Reclamations Water Resources Research Laboratory. The main focus of the study was on verification of the operating characteristics and head loss associated with the light-weight aluminum flap gate that is being specified for the CS-29 Black Bayou culvert structure. The flap gates were found to operate with very low head loss within the range of operations expected at the Black Bayou Site. Data were compared to prior studies. The use of light-weight flap gates, while having low head loss characteristics, will likely require some onsite adjustments of gate buoyancy. In addition, since only a single barrel was modeled in the laboratory, the effects of having 10 side-by-side box culverts with flap gates may also require gate buoyancy to obtain expected performance of the structure.
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The Housing Market Profiles are part of the U.S. Housing Market Conditions Report. These reports discuss economic activity, population changes, building activity, and sales and rental market conditions.
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The Petro Processors of Louisiana Inc. (PPI) Superfund Site is located in East Baton Rouge Parish, Louisiana, about six miles north of the City of Baton Rouge. From 2009-2011, groundwater samples were collected from the PPI Brookl...
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The Petro Processors of Louisiana Inc. (PPI) Superfund Site is located in East Baton Rouge Parish, Louisiana, about six miles north of the City of Baton Rouge. From 2009-2011, groundwater samples were collected from the PPI Brooklawn and Scenic operating units (OUs) as part of monitored natural and enhanced attenuation processes at the PPI site. The PPI site, is currently undergoing enhanced attenuation at the Scenic OU, with regular groundwater monitoring at both OUs. In cooperation with the Environmental Protection Agency (EPA), Louisiana Department of Health and Hospitals/Office of Public Health/Section of Environmental Epidemiology and Toxicology (LDHH/OPH/SEET) evaluated the most recent groundwater data available for the PPI site to determine whether contaminants in groundwater pose a potential public health hazard.
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What the future size and composition of the population of New Orleans will be in the aftermath of Hurricane Katrina is a topic of intense interest and discussion among current and displaced residents of the city; among policymaker...
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What the future size and composition of the population of New Orleans will be in the aftermath of Hurricane Katrina is a topic of intense interest and discussion among current and displaced residents of the city; among policymakers in the City of New Orleans, the State of Louisiana, and the federal government; and within the general public. This report presents population estimates for New Orleans three months, six months, one year, and three years after Hurricane Katrina. This report was prepared after consultation with New Orleans leaders in the aftermath of Hurricane Katrina and was done specifically to support the efforts of the Bring New Orleans Back Commission. Projections of the future population of New Orleans are essential to the work of the Commission's subcommittees for planning, infrastructure, and sustainability. The work for this report was carried out between late November 2005 and early January 2006 and reflects the situation in New Orleans through that time. Changes and further developments in the situation since then are not reflected in this report.
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During March and April, 1984, investigations of the M/V Fox, an historic boat at Larose on the bank of Bayou Lafourche in Lafourche Parish, Louisiana, were undertaken in order to evaluate its eligibility for the National Register ...
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During March and April, 1984, investigations of the M/V Fox, an historic boat at Larose on the bank of Bayou Lafourche in Lafourche Parish, Louisiana, were undertaken in order to evaluate its eligibility for the National Register of Historic Places. Archival and historical source research; oral history; and, fieldwork comprising photographic recordation, preparation of line drawings, and detailed inspection of the vessel were performed. As a result of these investigations, it was determined that the M/V Fox fulfills the criteria for nomination to and inclusion on the National Register of Historic Places. Recommendations concerning mitigation alternatives were made.
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Fieldwork was initiated on a sampling survey of the Fort Polk Military Reservation, Louisiana, including both the Main Fort and Peason Ridge. The work was designed to test a previous model of site location. Nine percent of the For...
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Fieldwork was initiated on a sampling survey of the Fort Polk Military Reservation, Louisiana, including both the Main Fort and Peason Ridge. The work was designed to test a previous model of site location. Nine percent of the Fort was surveyed using a stratified random sampling procedure. A total of 215 sites was recorded, of which 157 on-sample prehistoric sites were used as a basis for predictive modeling. The previous model was tested by these data, but because of mapping problems it was not possible to replicate it with a high level of confidence.
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Noticeable rutting issues have been a problem for many years on a corridor of I-20, in both eastbound and westbound lanes, located near Minden, LA and near the Webster-Bienville parish line. At the request of the DOTD designers ...
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Noticeable rutting issues have been a problem for many years on a corridor of I-20, in both eastbound and westbound lanes, located near Minden, LA and near the Webster-Bienville parish line. At the request of the DOTD designers and District 04 engineers, the Louisiana Transportation Research Center (LTRC) asphalt research group performed a small scale forensic evaluation in December 2014. The request was made because a reconstruction project is planned and scheduled in an attempt to remediate the rutting issues observed. Evaluation of the site and asphalt cores retrieved showed considerable deterioration of the binder course due to its moisture susceptibility and due to inadequate moisture drainage. The support structure of the road was damaged and settling occurred on the surface layers causing severe rut issues. Based on these findings, full depth rehabilitation of the asphalt pavement is recommended. Additional breaking of the original JCRP pavement should be performed in various areas of the old test sections. In addition, it is recommend that the current underdrain system be removed and replaced.
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The 12 Southern Louisiana domes (Lake Hermitage, Lake Washington, Leeville, Napoleonville, Potash, Bayou Blue, Bayou Choctaw, Bully Camp, Chacahoula, Clovelly, Sorrento, and White Castle) discussed in this report were found to pos...
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The 12 Southern Louisiana domes (Lake Hermitage, Lake Washington, Leeville, Napoleonville, Potash, Bayou Blue, Bayou Choctaw, Bully Camp, Chacahoula, Clovelly, Sorrento, and White Castle) discussed in this report were found to possess the following general characteristics. Depth of salt in the discussed domes varied from 629 feet to 3,800 feet. In general, the depths of Southern Louisiana domes fall between those of the domes in Northern Louisiana and those of the domes in Mississippi. Cover over the domes is generally swampy, with several instances of deep swamp or open water cover. All of the domes have been extensively drilled and explored for gas and oil. Also, several of the domes have been utilized for both sulfur and salt production. Some of the domes are in use for cavern storage, and at least one of the domes is under consideration for full term storage by LOOP, Inc. Full descriptions for all 12 domes are given. (ERA citation 04:028172)
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The principal research effort for Year 2 of the project is the determination of the burial and thermal maturation histories and basin modeling and petroleum system identification of the North Louisiana Salt Basin. In the first six...
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The principal research effort for Year 2 of the project is the determination of the burial and thermal maturation histories and basin modeling and petroleum system identification of the North Louisiana Salt Basin. In the first six (6) to nine (9) months of Year 2, the research focus is on the determination of the burial and thermal maturation histories and the remainder of the year the emphasis is on basin modeling and petroleum system identification. No major problems have been encountered to date, and the project is on schedule.
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