scholarly journals Cultural Resources Survey of Portions of the Rio Bravo LNG Pipeline on Port of Brownsville Lands, Cameron County, Texas

2020 ◽  
Author(s):  
Steve Carpenter ◽  
Christina Nielsen ◽  
Jessica Ulmer ◽  
Mercedes Cody ◽  
Janaka Greene
Keyword(s):  
Natural Gas ◽  
Rio Grande ◽  
Archaeological Sites ◽  
Pipeline System ◽  
Cultural Resources ◽  
Project Area ◽  
Pedestrian Survey ◽  
Rio Bravo ◽  
System Project ◽  
Age Structures

On behalf of Ecology and Environment, Inc. (E & E), Rio Grande LNG, LLC, and Rio Bravo Pipeline Company, LLC (RB Pipeline), SWCA Environmental Consultants (SWCA) conducted cultural resources surveys of portions of the Rio Bravo Pipeline on lands owned or controlled by the Port of Brownsville in Cameron County, Texas. Rio Grande LNG, LLC proposes to construct a natural gas liquefaction facility and liquefied natural gas (LNG) export terminal (Terminal) in Cameron County, Texas, along the north embankment of the Brownsville Ship Channel. In concert with the Terminal, RB Pipeline proposes to construct an associated pipeline system (Pipeline System/Project) within Cameron, Willacy, Kenedy, Kleberg, and Jim Wells Counties, Texas to allow for interconnection with a network of existing pipelines that traverse the northern end of Kleberg County and Jim Wells County. The proposed Pipeline System/Project will collect and transport natural gas to the Terminal site. In compliance with the Federal Energy Regulatory Commission and U.S. Army Corps of Engineers permitting requirements and oversight, SWCA conducted cultural resources investigations in compliance with Section 106 of the National Historic Preservation Act (NHPA) (54 U.S.C. 306108) and its implementing regulations in 36 Code of Federal Regulations 800. Although the entire Project is subject to compliance with Section 106 of the NHPA, this stand-alone report specifically addresses portions of the alignment that will be located on lands owned by the Port of Brownsville (Port). Since the Port is a political subdivision of the state, investigations were conducted in compliance with the Antiquities Code of Texas (ACT) under ACT Permit No. 8588 administered by the Texas Historical Commission (THC). The data in this report is also presented in Addendum IV (Carpenter et al., 2020) to the final report (Nielsen et al., 2016) of the overall investigations. The investigations covered 0.58 mile (0.93 kilometers [km]) of proposed pipeline corridor within a 200-foot-wide (60.96-meter [m]-wide) pipeline survey corridor, and 0.31 mile (0.50 km) of proposed access roads within a 50-foot-wide (15.24-m-wide) access roads survey corridor, for a Project Area total of approximately 15.8 acres within Port property. The cultural resources investigations included a background and historical map review, and an intensive pedestrian survey with subsurface testing. The background review identified nine previously conducted archaeological surveys within a 1-mile radius of the Project Area, three of which intersect the current Project Area. The background review identified no previously recorded archaeological sites within the Project Area; however, seven archaeological sites are within a 1-mile radius none of which are immediately adjacent (within 300 feet [91.44 m]) to the Project Area. In addition, a review of historical maps determined that there are no historic-age structures or features mapped within or immediately adjacent to the Project Area. SWCA archaeologists conducted the cultural resources intensive pedestrian survey on October 22, 2018. The investigation revealed an extensively disturbed setting due to historic & modern development in the area mainly associated with the Port. SWCA archaeologists excavated a total of nine shovel tests within the Project Area all negative for cultural materials. No cultural materials or features or historic-age structures were identified within the Project Area during the field survey. In accordance with the ACT and Section 106 of the NHPA, SWCA has made a reasonable and good faith effort to identify cultural resources within the Project Area of Potential Effects (APE). No cultural resources were identified within the Project Area during the current investigations. Accordingly, no further investigation is recommended for the assessed sections of the Project Area. The THC concurred with these findings and recommendations on January 14, 2020. No artifacts were recovered; documentation will be curated at the Texas Archeological Research Laboratory of The University of Texas at Austin.

scholarly journals Cultural Resources Investigations for the CrownQuest City of Midland Oil and Gas Project, Midland and Glasscock Counties, Texas

2018 ◽  
Author(s):  
Sophia Salgado ◽  
Zachary Overfield ◽  
Cody Roush
Keyword(s):  
Oil And Gas ◽  
Ground Surface ◽  
Petroleum Exploration ◽  
Archaeological Sites ◽  
Cultural Resources ◽  
Project Area ◽  
Oil Pipeline ◽  
Project Activity ◽  
Land Disturbance ◽  
Pedestrian Survey

SWCA Environmental Consultants (SWCA) was retained by CrownQuest Operating, LLC, to complete an intensive cultural resources investigation for the proposed CrownQuest City of Midland Oil and Gas Project (Project). The Project includes newly proposed oil and gas well pads, crude oil pipeline, and associated access roads on City of Midland property in Midland and Glasscock Counties, Texas. These new components will be constructed within an existing upstream oil and gas system. The 149.9-acre (60.7-hectare) Project area is located approximately 15 miles southeast of Midland, Texas, immediately south of Highway 158, and is situated along and between Johnson and Pemberton Draws. The Project involves a political subdivision within the state of Texas (City of Midland). The Antiquities Code of Texas (ACT) applies because the Project’s activities occur on property owned by the City of Midland and will involve more than 5 acres / 5,000 cubic yards of land disturbance or may potentially affect known archaeological sites. It is SWCA’s understanding that the Project does not currently have a federal nexus, and it is not subject to Section 106 of the National Historic Preservation Act. The purpose of this investigation was to identify and assess any cultural resources, such as historic and prehistoric archaeological sites and historic buildings, structures, objects, and sites (such as cemeteries) that might be located within the boundaries of the proposed Project and evaluate their significance and eligibility for designation as a State Antiquities Landmark. The investigations included a background and historic map review of the Project area and immediately surrounding region followed by pedestrian survey with visual examination and shovel test excavations at proposed Project activity areas. All investigations were conducted in accordance with the ACT and standards and guidelines established by the THC and Council of Texas Archeologists. Following the review and acceptance of the final cultural resources report, all records and photographs will be curated with the Center for Archaeological Research at the University of Texas at San Antonio, per requirements of the ACT in accordance with the CTA guidelines. The cultural resources investigation was conducted under ACT Permit No. 8506. Fieldwork was performed from July 30 to August 4, 2018. The Project setting was mainly eroded and heavily disturbed uplands with occasional exposures of bedrock and caliche. Pedestrian survey was augmented by hand excavating 253 shovel tests and seven auger tests, which were terminated at the maximum reachable depth or at soils likely predating human occupation, typically around 45 cm below surface. The most pervasive land disturbance observed was related to petroleum exploration and extraction activities that have generally impacted ground surface integrity. During the investigation SWCA archaeologists did not observe any prehistoric or historic cultural resources within the Project area. The location near site 41MD4, identified during the background review, could not be visited by SWCA survey staff due to a fire in the facility. The site boundary defined does not extend into a proposed Project activity area and the closest associated Project item is already disturbed. On that basis it is not considered to be a Project concern. Based on the negative findings of the intensive cultural resources survey, SWCA recommends that no further archaeological investigations are warranted within the assessed portions of the CrownQuest City of Midland Oil and Gas Project area.

scholarly journals Cultural Resources Investigations of the Vista Ridge Regional Water Supply Project in Burleson, Lee, Bastrop, Caldwell, Guadalupe, Comal and Bexar Counties, Texas

2016 ◽  
Author(s):  
Laura Acuna ◽  
Brandon Young ◽  
Rhiana Ward
Keyword(s):  
Water Supply ◽  
Archaeological Sites ◽  
Army Corps ◽  
Cultural Resources ◽  
Army Corps Of Engineers ◽  
Project Area ◽  
Central Texas ◽  
Water Pipeline ◽  
National Historic Preservation Act ◽  
Regional Water

On behalf of VRRSP Consultants, LLC and Central Texas Regional Water Supply Corporation (CTRWSC), SWCA Environmental Consultants (SWCA) conducted cultural resources investigations of the Vista Ridge Regional Water Supply (Vista Ridge) Project in Burleson, Lee, Bastrop, Caldwell, Guadalupe, Comal, and Bexar Counties. The work will involve installation of a 139.45-mile-long, 60-inch-diameter water pipeline from northcentral San Antonio, Bexar County, Texas, to Deanville, Burleson County, Texas. The report details the findings of investigations from June 2015 to December 2015, on the alignment dated December 8, 2015 (December 8th). The Vista Ridge Project is subject to review under Section 106 of the National Historic Preservation Act (54 USC 306108) and its implementing regulations (36 CFR 800), in anticipation of a Nationwide Permit 12 from the U.S. Army Corps of Engineers in accordance with Section 404 of the Clean Water Act. In addition, the work is subject to compliance with the Antiquities Code of Texas under Permit Number 7295, as the Vista Ridge Project will be ultimately owned by a political subdivision of the State of Texas. The cultural resources investigations included a background review and intensive field survey. The background review identified previous investigations, recorded archaeological sites, National Register of Historic Places (NRHP) properties, cemeteries, standing structures, and other known cultural resources within a 0.50-mile radius of the project area. The field investigations conducted from June 2015 through December 2015 assessed all accessible portions of the proposed December 8th alignment as of December 25, 2015. Approximately 101.8 miles of the 139.45-mile alignment has been surveyed. Approximately 24.42 miles were not surveyed based on the results of the background review and extensive disturbances as confirmed by vehicular survey. The remaining 13.23 miles that require survey were either unavailable due to landowner restrictions or part of a newly adopted reroute. SWCA also surveyed additional mileage, which includes rerouted areas that are no longer part of the December 8th alignment. The inventory identified 59 cultural resources, including 52 archaeological sites and seven isolated finds. In addition to newly recorded resources, two previously recorded archaeological sites were revisited, and two cemeteries were documented. Of the 52 newly recorded archaeological sites, seven are recommended for further work or avoidance. Of the two revisited archeological sites, one is recommended for further work or avoidance within the project area. Avoidance is recommended for both documented cemeteries. The resources with undetermined eligibility require additional testing or other avenues of research before SWCA can make a firm recommendation about their eligibility for nomination to the NRHP and designation as State Antiquities Landmarks (SALs). As part of a management strategy, the resources with undetermined eligibility may also be avoided by reroute or boring beneath. The remaining 45 cultural resources are recommended not eligible for inclusion to the NRHP or for designation as SALs and no further cultural resources investigations or avoidance strategies are recommended.

scholarly journals 2018-2019 Annual Report of Work Carried Out at Memorial Park, City of Houston, Harris County, Texas

2020 ◽  
Author(s):  
Michael Quennoz
Keyword(s):  
Historic Preservation ◽  
Survey Methods ◽  
Archaeological Site ◽  
Cultural Resources ◽  
Harris County ◽  
Protective Measures ◽  
Project Area ◽  
Research Survey ◽  
National Historic Preservation Act ◽  
Age Structures

On behalf of the City of Houston and the Memorial Park Conservancy, Gray & Pape, Inc. conducted intensive pedestrian surveys of three areas totaling 144.4 hectares (357.6 acres) of Memorial Park, City of Houston, Harris County, Texas. Fieldwork was carried out between April 1, 2018 and March 31, 2019, under Texas Antiquities Annual Permit Number 8465. The following report presents the results of site file and background research, survey methods, field results, and conclusions and recommendations for each of these surveys. The goals of the intensive pedestrian surveys were to assist the Memorial Park Conservancy in identifying the presence of cultural resources as they are defined by Section 106 of the National Historic Preservation Act of 1966, as amended (36 CFR 800), and provide management recommendations for identified resources. Survey methods, site identification and delineation, and reporting adhere to standards established by the Archeology Division of the Texas Historical Commission, the Council of Texas Archeologists, and the National Historic Preservation Act of 1966. At this time, the Memorial Park Conservancy plans to conduct standard park maintenance activities including low impact mechanical clearing of the invasive understory, spraying, and new plantings in each of the areas surveyed. Gray & Pape, Inc. focused particular attention on the State Antiquities Landmark-designated (#8200003264) Camp Logan archaeological site (41HR614) that encompasses large portions of Memorial Park. As a result of survey findings, the boundary for 41HR614 has been expanded to include the entirety of the former Camp Logan footprint as preserved within the boundaries of Memorial Park. The boundary of the previously recorded prehistoric site 41HR1217 was also extended. Four new prehistoric sites (41HR1226, 41HR1227, 41HR1229, 41HR1230) and one new multicomponent site (41HR1228) were also recorded. The 12.4-hectare (30.6-acre) Sports Complex survey resulted in the identification of five historic features considered part of 41HR614: the partial remains of a Camp Logan era road, segments of two Camp Logan era ditches, a Camp Logan concrete grease trap, and a concrete signpost from the 1940s. Gray & Pape recommends that the grease trap and signpost be avoided by Memorial Park Conservancy planned activities. The remaining features will not be impacted by current planned Memorial Park Conservancy activities. Based on the results of this survey, and with these protective measures in place, Gray & Pape recommends that the no further cultural resources work be required in the remaining portions of the Sports Complex project area and that the project be cleared to proceed as currently planned. The 76-hectare (189-acre) Bayou Wilds – East survey resulted in the identification of four new prehistoric sites (41HR1226, 41HR1227, 41HR1229, 41HR1230) and one new multicomponent site (41HR1228). The boundaries of the prehistoric site 41HR1217 and the historic site 41HR614 were extended A total of 14 new features were identified as associated with 41HR614, as well as two historic-age structures. Gray & Pape, Inc. recommends avoidance of the identified sites, features, and historic age structures. Based on the results of this survey, and with these protective measures in place, Gray & Pape, Inc. recommends no further cultural resources work be required in the remaining portion of the Bayou Wilds – East project area and that the project be cleared to proceed as planned. The 56-hectare (138-acre) Northwest Trails – North survey resulted in the identification of four historic-age structures, nearly identical footbridges constructed of irregular blocks and mortar that are part of the park’s active trail network; as well as a historical isolate. Based on the results of this survey, and with these protective measures in place, Gray & Pape, Inc. recommends that the no further cultural resources work be required in the remaining portions of the Northwest Trails – North project area and that the project be cleared to proceed as currently planned. As part of the Unanticipated Finds Plan developed by Gray & Pape, Inc. and the Memorial Park Conservancy, Gray & Pape, Inc. archaeologists identified and recorded nine cultural features (seven manholes, one grease trap, one segment of vitrified clay pipe) uncovered by activities undertaken by the Memorial Park Conservancy and their contractors. In each case ongoing work in the area of the newly encountered feature was halted until the feature was fully documented by a Gray & Pape, Inc. archaeologist, and potential impacts were coordinated between Gray & Pape, Inc., the Memorial Park Conservancy, and the Texas Historical Commission. Gray & Pape, Inc. also coordinated with the Texas Historical Commission on two occasions in relation to Memorial Park Conservancy projects for which no fieldwork was required. As a project permitted through the Texas Historical Commission, Gray & Pape, Inc. submitted project records to the Center of Archaeological Studies at Texas State University in San Marcos, Texas.

scholarly journals Proposed Horsepen Bayou Conveyance Improvements City of Houston, Harris County, Texas

2019 ◽  
Author(s):  
Catherine Jalbert ◽  
Jennifer Kimbell
Keyword(s):  
Flood Control ◽  
Army Corps ◽  
Cultural Resources ◽  
Army Corps Of Engineers ◽  
Harris County ◽  
Regulatory Oversight ◽  
Neutral Buoyancy ◽  
Project Area ◽  
Pedestrian Survey ◽  
National Historic Preservation Act

Terracon Consultants, Inc. (Terracon) was retained by IDS Engineering Group (Client) to conduct an intensive pedestrian survey for the proposed Horsepen Bayou Conveyance Improvements project in Houston, Harris County, Texas. Terracon previously conducted a cultural resources desktop assessment for the Client, which was coordinated with the Texas Historical Commission (THC) on March 4, 2019. Since the proposed undertaking will occur on land owned or controlled by a political subdivision of the State of Texas (Harris County Flood Control District), this project was subject to the Antiquities Code of Texas (Texas Natural Resources Code, Title 9, Chapter 191). Additionally, since future phases of this project will trigger regulatory oversight through coordination with the U.S. Army Corps of Engineers (USACE) under Section 404 of the Clean Water Act, it will be subject to provisions of Section 106 of the National Historic Preservation Act (NHPA) (54 USC § 306101). This project was conducted under Antiquities Permit #8974. The project area comprises an approximate six-mile reach along Horsepen Bayou, and associated tributaries, and an approximate 73-acre undeveloped tract. Fieldwork, consisting of pedestrian survey and shovel testing, was conducted from July 22 to July 26, 2019 by Catherine Jalbert (Project Archeologist), Edgar Vazquez (Staff Archeologist), and Michael Hogan (Staff Archeologist), under the oversight of Jennifer Hatchett Kimbell, who served as the Principal Investigator. The report was authored by Catherine Jalbert and Jennifer Hatchett Kimbell. The proposed project area was investigated in compliance with Texas Historical Commission (THC) and Council of Texas Archeologists (CTA) guidelines for archeological survey. No cultural resources were observed within the project area. One property, NASA’s Sonny Carter Training Facility/Neutral Buoyancy Laboratory (Building 920) is adjacent to the project area and has been determined eligible for listing to the National Register of Historic Places (NRHP). However, the THC has determined that the project will have no adverse effect on this property. Considering the absence of other observed cultural resources eligible for inclusion on the NRHP within the project area, Terracon recommended that the proposed project be allowed to proceed as currently designed. The THC concurred with this recommendation on October 4, 2019, and consequently no additional work is required at this time. In the event that human remains or cultural features are discovered during construction, those activities should cease in the vicinity of the remains and Terracon, the THC’s Archeology Division, or other proper authorities should be contacted.

scholarly journals Negative Findings Cultural Resources Survey for the No Name Island Road Improvement Project, Laredo, Texas Laredo Sector, U.S. Customs and Border Protection

2019 ◽  
Author(s):  
John Lindemuth
Keyword(s):  
Field Survey ◽  
Archaeological Sites ◽  
Cultural Resources ◽  
Archaeological Survey ◽  
River Terrace ◽  
Improvement Project ◽  
Project Area ◽  
Vegetation Removal ◽  
Access Road ◽  
Customs And Border Protection

Gulf South Research Corporation (GSRC) personnel conducted an intensive archaeological survey of an existing footpath and detached river terrace, referred to as “No Name Island” proposed for vegetation removal on behalf of U.S. Customs and Border Protection (CBP). The project area consists of an approximately 0.25-mile-long dirt footpath, which is proposed to be widened to 16 feet to allow vehicle access (i.e., No Name Access Road), and an approximately 1.12-acre area of detached river terrace (i.e., No Name Island), for which clearing of dense vegetation is proposed. This investigation constitutes CBP’s good faith effort to take into account any adverse effects that may occur as a result of the proposed undertaking in compliance with Section 106 of the National Historic Protection Act (NHPA) (Public Law 89-665; 54 U.S.C. 300101 et seq). The intensive Phase I archaeological investigation included background research of the physical environment, cultural history of the area, previous investigations and previously reported cultural resources, and field survey. Field survey included pedestrian surface inspection supplemented with the excavation of shovel test pits (STPs). Background research revealed eight investigations have been previously conducted, three archaeological sites, and one National Register of Historic Places (NRHP)-listed historic district have been previously recorded within a 0.5-mile radius of the proposed project area. Two of these investigations overlapped with portions of the survey area. None of the previously identified archaeological sites or the NRHP-listed district overlap with either the No Name Access Road or No Name Island survey areas. During field survey, the pedestrian survey encountered no archaeological resources on the ground surface. The subsurface testing consisted of the excavation of four STPs along No Name Access Road within the 0.25 mile long, 60-foot wide project corridor and five STPs within the 1.12 acre No Name Island vegetation removal area. None of the nine STPs were positive for cultural material. As a result of this investigation, no cultural resources were identified within the proposed project area. The proposed project will have no adverse effect on cultural resources and no further work is recommended.

scholarly journals Intensive Cultural Resources Survey of the Brushy Creek Sewer Line Phase 3 Project in the City of Ingram, Kerr County, Texas

2020 ◽  
Author(s):  
Christopher Shelton
Keyword(s):  
Research University ◽  
Ground Surface ◽  
Cultural Resources ◽  
Department Of Agriculture ◽  
Project Area ◽  
University Of Texas ◽  
Pedestrian Survey ◽  
Linear Alignment ◽  
National Historic Preservation Act ◽  
The City

On behalf of the City of Ingram, Texas, SWCA Environmental Consultants (SWCA) conducted an intensive cultural resources survey of the proposed Brushy Creek Sewer Line Project (Project) in Kerr County, Texas. The approximately 1-mile-long sewer main extension line is being developed by the City of Ingram, a political subdivision of the State of Texas; therefore, the Project requires compliance with the Antiquities Code of Texas (ACT). In addition, the Project will receive federal funds from the U.S. Department of Agriculture (USDA); therefore, the work was conducted to comply with requirements of Section 106 of the National Historic Preservation Act (NHPA). This cultural resources investigation was conducted under ACT Permit No. 9243. The Project begins just south of Winona Street West and terminates just south of Highway 27. The Project Area includes the proposed linear alignment situated within a 25-foot-wide corridor and lies on undeveloped land. Proposed impacts are expected to include widespread surficial modifications with deeper impacts in location of sewer lines. The cultural resources investigation consisted of a background and historical map review, followed by intensive pedestrian survey augmented by shovel testing conducted by SWCA archaeologists. SWCA’s background review determined that there are no known cultural resources within the Project area. SWCA also reviewed a 0.5-mile study area surrounding the proposed Project. This review determined there are a total of five previously conducted surveys and six previously recorded archaeological sites within 0.5 mile of the Project area. None of the six previously recorded sites have been recommended as eligible for listing on the National Register of Historic Places (NRHP). Additionally, no NRHP districts or properties, sites designated as State Antiquities Landmarks, historical markers, cemeteries, or local neighborhood surveys were identified within the Project area or the larger study area. During field investigations conducted on February 4, 2019, SWCA conducted an intensive archaeological pedestrian survey augmented with shovel testing of the Project area. For linear projects, the Texas Historical Commission (THC)/Council of Texas Archaeologists (CTA) survey standards require a minimum of 16 shovel tests per mile with thorough documentation of all exceptions noted (e.g., disturbance, slope, and impervious surfaces). Based on these standards, SWCA exceeded the requirements by excavating a total of 34 shovel tests within the 1-mile Project area. No cultural materials were identified on the ground surface or within any of the shovel tests excavated within the Project area. In accordance with the ACT and with Section 106 of the NHPA (36 Code of Federal Regulations [CFR] 800.4 (b)(1)), SWCA has made a reasonable and good faith effort to identify historic properties within the area of potential effects. SWCA recommends a finding of No Historic Properties Affected per 36 CFR 800. 5(b) and no further archaeological investigation of the current Project area is recommended. No artifacts or samples were collected during this survey. All survey-related documentation will be curated at the Center for Archaeological Research, University of Texas at San Antonio.

scholarly journals Cultural Resources Survey for the Proposed MUD 121 Brazos River Levee Protection Project in Fort Bend County, Texas

2020 ◽  
Author(s):  
Michael Quennoz ◽  
Tony Scott
Keyword(s):  
Potential Effect ◽  
Archaeological Sites ◽  
Cultural Resources ◽  
Buried Soils ◽  
Cultural Resource ◽  
Near Surface ◽  
Project Area ◽  
San Marcos ◽  
Historic Markers ◽  
Bank Stabilization

This report summarizes the results of a cultural resources survey by Gray & Pape, Inc. of an approximately 14.8-hectare (36.6-acre) property in Fort Bend County, Texas, planned for a bank stabilization project on behalf of their client, Berg-Oliver Associates, Inc. The goals of the survey were to determine if the proposed project would affect any previously identified archaeological sites as defined by Section 106 of the National Historic Preservation Act of 1966, as amended (36 CFR 800), and to establish whether or not previously unidentified buried archaeological resources were located within the project’s Area of Potential Effect. Portions of the project are on property owned by Fort Bend County Municipal Utility District Number 121, political subdivisions of the state, as such, a Texas Antiquities Permit (Permit Number 8734) was required prior to the commencement of fieldwork. All fieldwork and reporting activities were completed with reference to state (the Antiquities Code of Texas) and federal guidelines. Prior to fieldwork mobilization, a background literature and site file search were conducted to identify the presence of recorded sites and previous cultural resource surveys within or near the project area. The search indicated that no previously identified archaeological sites, cemeteries, historic markers, or National Register properties are located within the project area. The same research identified that eight previous cultural resource surveys had been conducted within the study radius of the project area, one of which overlapped with the current project area. In addition, 14 previously recorded archaeological sites are located within the study radius, none of which are located within or immediately adjacent to the current project area. Field investigations were carried out in two mobilizations in January and December 2019 and consisted of a combination of pedestrian survey and subsurface testing, resulting in the excavation of 32 shovel tests. Five planned tests were left unexcavated due to inundation, and eight planned tests were left unexcavated due to significant surface disturbance. All shovel tests were negative for cultural resource material and no historic-age resources were identified during survey. After a revised scope of work was submitted to the Texas Historical Commission, investigation of deeply buried soils took place tandem with construction by regular monitoring of construction excavation. When the construction schedule allowed, traditional deep testing, by means of mechanical excavation, was carried out in five of six areas anticipated to have deep impacts from the proposed bank stabilization project. A total of 22 trenches were excavated. No buried features or deeply buried paleosols were encountered. Gray & Pape, Inc. archaeologists are of the opinion that the shovel test survey and deep testing completed within the Area of Potential Effects has adequately assessed the potential for surface and near surface intact, significant cultural resources, as well as determining the potential for deeply buried resources or paleosols. No artifacts or cultural features were encountered during the course of the survey, and no new archaeological sites were identified. No negative impacts on any previously identified sites are anticipated from the proposed project. Based on these results, Gray & Pape, Inc. recommends that no further cultural work be required and that the project be cleared to proceed as planned. As required under the provisions of Texas Antiquities Code Permit 8734, all project records are housed at the Center for Archaeological Studies at Texas State University, San Marcos, Texas.

Integrity Assessment of Non-Piggable Pipeline Through Direct Assessment

2013 ◽  
Author(s):  
Jai Prakash Sah ◽  
Mohammad Tanweer Akhter
Keyword(s):  
Hydrostatic Pressure ◽  
Natural Gas ◽  
Stress Corrosion ◽  
Health Assessment ◽  
Assessment Method ◽  
Pipeline System ◽  
Internal Corrosion ◽  
Integrity Assessment ◽  
Direct Assessment ◽  
External Corrosion

Managing the integrity of pipeline system is the primary goal of every pipeline operator. To ensure the integrity of pipeline system, its health assessment is very important and critical for ensuring safety of environment, human resources and its assets. In long term, managing pipeline integrity is an investment to asset protection which ultimately results in cost saving. Typically, the health assessment to managing the integrity of pipeline system is a function of operational experience and corporate philosophy. There is no single approach that can provide the best solution for all pipeline system. Only a comprehensive, systematic and integrated integrity management program provides the means to improve the safety of pipeline systems. Such programme provides the information for an operator to effectively allocate resources for appropriate prevention, detection and mitigation activities that will result in improved safety and a reduction in the number of incidents. Presently GAIL (INDIA) LTD. is operating & maintaining approximately 10,000Kms of natural gas/RLNG/LPG pipeline and HVJ Pipeline is the largest pipeline network of India which transports more than 50% of total gas being consumed in this country. HVJ pipeline system consists of more than 4500 Kms of pipeline having diameter range from 04” to 48”, which consist of piggable as well as non-piggable pipeline. Though, lengthwise non-piggable pipeline is very less but their importance cannot be ignored in to the totality because of their critical nature. Typically, pipeline with small length & connected to dispatch terminal are non-piggable and these pipelines are used to feed the gas to the consumer. Today pipeline industries are having three different types of inspection techniques available for inspection of the pipeline. 1. Inline inspection 2. Hydrostatic pressure testing 3. Direct assessment (DA) Inline inspection is possible only for piggable pipeline i.e. pipeline with facilities of pig launching & receiving and hydrostatic pressure testing is not possible for the pipeline under continuous operation. Thus we are left with direct assessment method to assess health of the non-piggable pipelines. Basically, direct assessment is a structured multi-step evaluation method to examine and identify the potential problem areas relating to internal corrosion, external corrosion, and stress corrosion cracking using ICDA (Internal Corrosion Direct Assessment), ECDA (External Corrosion Direct Assessment) and SCCDA (Stress Corrosion Direct Assessment). All the above DA is four steps iterative method & consist of following steps; a. Pre assessment b. Indirect assessment c. Direct assessment d. Post assessment Considering the importance of non-piggable pipeline, integrity assessment of following non piggable pipeline has done through direct assessment method. 1. 30 inch dia pipeline of length 0.6 km and handling 18.4 MMSCMD of natural gas 2. 18 inch dia pipeline of length 3.65 km and handling 4.0 MMSCMD of natural gas 3. 12 inch dia pipeline of length 2.08 km and handling 3.4 MMSCMD of natural gas In addition to ICDA, ECDA & SCCDA, Long Range Ultrasonic Thickness (LRUT-a guided wave technology) has also been carried out to detect the metal loss at excavated locations observed by ICDA & ECDA. Direct assessment survey for above pipelines has been conducted and based on the survey; high consequence areas have been identified. All the high consequence area has been excavated and inspected. No appreciable corrosion and thickness loss have observed at any area. However, pipeline segments have been identified which are most vulnerable and may have corrosion in future.

Quantitative Risk Analysis and Comparison for Onshore and Offshore LNG Terminals: The Port of Suape - Brazil Case

2011 ◽  
Author(s):  
Marilia A. Ramos ◽  
Enrique L. Droguett ◽  
Marcelo R. Martins ◽  
Henrique P. Souza
Keyword(s):  
Natural Gas ◽  
Original Form ◽  
Pipeline System ◽  
Industrial Complex ◽  
Flammability Limits ◽  
Liquid Form ◽  
Worst Case ◽  
Final Destination ◽  
Natural Gas Pipeline ◽  
Vapor Cloud

In recent decades, natural gas has been gaining importance in world energy scene and established itself as an important source of energy. One of the biggest obstacles to increase the usage of natural gas is its transportation, mostly done in its liquid form, LNG – Liquefied Natural Gas, and storage. It involves the liquefaction of natural gas, transport by ship, its storage and subsequent regasification, in order to get natural gas in its original form and send it to the final destination through natural gas pipeline system. Nowadays, most terminals for receiving, storing and regasificating LNG, as well as sending-out natural gas are built onshore. These terminals, however, are normally built close to populated areas, where consuming centers can be found, creating safety risks to the population nearby. Apart from possible damages caused by its cryogenic temperatures, LNG spills are associated with hazards such as pool fires and ignition of drifting vapor clouds. Alternatively to onshore terminals, there are currently several offshore terminals projects in the world and some are already running. Today, Brazil owns two FSRU (Floating Storage and Regasification Unit) type offshore terminals, one in Guanabara Bay, Rio de Janeiro and the other in Pece´m, Ceara´, both contracted to PETROBRAS. The identification of the operation risks sources of LNG terminals onshore and offshore and its quantification through mathematical models can identify the most suitable terminal type for a particular location. In order to identify and compare the risks suggested by onshore and offshore LNG terminals, we have taken the example of the Suape Port and its Industrial Complex, located in Pernambuco, Brazil, which is a promising location for the installation of a LNG terminal. The present work has focused on calculating the distance to the LNG vapor cloud with the lower flammability limits (LFL), as well as thermal radiation emitted by pool fire, in case of a LNG spill from an onshore and from an offshore terminal. The calculation was made for both day and night periods, and for three types of events: operational accident, non-operational accident and worst case event, corresponding to a hole size of 0,75m, 1,5m e 5m, respectively. Even though the accidents that happen at an onshore terminal generate smaller vulnerability distances, according to the results it would not be desirable for the Suape Port, due to the location high density of industries and people working. Therefore, an offshore terminal would be more desirable, since it presents less risk to the surrounding populations, as well as for workers in this location.

scholarly journals Shallow Offshore Geophysical Prospection of Archaeological Sites in Eastern Mediterranean

2021 ◽  
Vol 13 (7) ◽  
pp. 1237
Author(s):  
Nikos Papadopoulos
Keyword(s):  
Eastern Mediterranean ◽  
Archaeological Sites ◽  
Cultural Resources ◽  
Marine Environments ◽  
Resistivity Tomography ◽  
Cultural Resources Management ◽  
Coastal Marine ◽  
Ground Penetrating ◽  
Magnetic Gradiometry ◽  
Geophysical Prospection

Geophysical prospecting methods have been extensively used to outline buried antiquities in terrestrial sites. Despite the frequent application of these mapping and imaging approaches for the detection of archaeological relics in deep-water marine environments (e.g., shipwrecks), the aforementioned processes have minimal contribution when it comes to understanding the dynamics of the past in coastal and shallow aquatic archaeological sites. This work explores the possibilities of multicomponent geophysical techniques in revealing antiquities that have been submerged in diverse shallow coastal marine environments in the eastern Mediterranean. A group of four sites in Greece (Agioi Theodoroi, Olous, Lambayanna) and Cyprus (Pafos) spanning from prehistory to Roman times were chosen as test sites to validate the efficiency of electrical resistivity tomography, magnetic gradiometry, and ground penetrating radar methods. The comprehensive analysis of the geophysical data completed the picture for the hidden archeological elements in all the sites. The results manifest the significance and the potential of these methods for documenting and understanding the complex archaeological sites encountered in the Mediterranean. In view of climate change and the risks related to future sea level rise and erosion of low-level coastal areas, the results of this work could be integrated in a strategic framework to develop an effective interdisciplinary research model that can be applied to similar shallow water archaeological surveys, thus substantially contributing towards cultural resources management.

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