1978 Houston-Galveston and Texas Gulf Coast vertical-control surveys (open access)

1978 Houston-Galveston and Texas Gulf Coast vertical-control surveys

Comparisons between leveling surveys of different epochs are used to determine vertical displacement of permanent bench marks. Displacement of bench marks usually represents the movement of the surrounding area. In this report, the 1978 Houston-Galveston and Texas Gulf Coast releveling surveys are compared to the 1963, 1973, and 1976 releveling results. The changes in elevations of bench marks common to two or more epochs are tabulated and plotted in Appendix A. From these differences, contour maps were prepared for the 1963 to 1978 and 1973 to 1978 epochs in the 2/sup 0/ x 2/sup 0/ area of maximum subsidence. Annual subsidence rates computed for the 1973 to 1978 period are about 25% less in the maximum subsidence area than the rates computed for the 1963 to 1973 period.
Date: November 1, 1980
Creator: Balazs, E. I.
Object Type: Report
System: The UNT Digital Library
Railway-Frog. (open access)

Railway-Frog.

Patent for "a frog for crossing rails at switches or railway-crossings" (lines 8-9).
Date: December 25, 1900
Creator: Barry, James
Object Type: Patent
System: The Portal to Texas History

Plates 1-3: Aeroradioactivity Map (ARMS-II), Galveston Area, Texas

Maps of four quadrants in the Galveston area surveyed as part of a radiological survey, outlining "Radioactivity levels in hundreds of counts per second normalized to 500 ft above ground." Scale 1:250,000.
Date: 1963
Creator: Edgerton, Germeshausen & Grier
Object Type: Map
System: The UNT Digital Library
Ground-Water Withdrawals and Changes in Water Levels in the Houston District, Texas 1975-79 (open access)

Ground-Water Withdrawals and Changes in Water Levels in the Houston District, Texas 1975-79

Report on the published data on ground-water development in the Houston, Texas district.
Date: April 1984
Creator: Gabrysch, R. K.
Object Type: Report
System: The Portal to Texas History
Ground-Water Withdrawals and Land-Surface Subsidence in the Houston-Galveston Region, Texas, 1906-80 (open access)

Ground-Water Withdrawals and Land-Surface Subsidence in the Houston-Galveston Region, Texas, 1906-80

Report presenting data on ground-water withdrawals, describes subsidence monitoring and describes techniques that can be used to monitor subsidence.
Date: June 1984
Creator: Gabrysch, R. K.
Object Type: Report
System: The Portal to Texas History
Land-Surface Subsidence at Seabrook, Texas (open access)

Land-Surface Subsidence at Seabrook, Texas

Abstract: Removal of water, oil, and gas from the subsurface in Harris and Galveston Counties, Texas, has caused a decline in fluid pressures, which in turn has resulted in subsidence of the land surface. Subsidence of the land surface at Seabrook is due principally to the removal of water. Significant subsidence of the land surface probably began after 1920, and a minimum of about 3.3 feet (1.0 m) and a maximum of about 4.3 feet (1.3 m) of subsidence had occurred at Seabrook by 1973. Probable future subsidence was calculated by two different methods for each of two different loading situations. In the first loading situation, case I, the artesian heads in the Alta Lorna Sand (Rose, 1943) and Evangeline aquifer would continue to decline at the respective rates of 8 feet (2.4 m) per year and 7 feet (2.1 m) per year until 1980 and then cease. In the second loading situation, case II, the artesian heads in the Alta Lorna Sand and Evangeline aquifer would continue to decline at rates of 8 and 7 feet (2.4 and 2.1 m) per year until 1990 and then cease.
Date: October 1976
Creator: Gabrysch, R. K. & Bonnet, C. W.
Object Type: Report
System: The UNT Digital Library
Land-Surface Subsidence in the Area of Moses Lake Near Texas City, Texas (open access)

Land-Surface Subsidence in the Area of Moses Lake Near Texas City, Texas

Abstract: Removal of water, oil, and gas from the subsurface in Harris and Galveston Counties has caused declines in fluid pressures, which in turn have resulted in subsidence of the land surface. Subsidence of the land surface at Moses Lake is due principally to the removal of ground water in adjacent areas. Significant subsidence of the land surface at Moses Lake began after 1900, and as much as 1.8 feet (0.55 meters) of subsidence had occurred in the area by 1973. Probable future subsidence was calculated by two methods for two loading situations. In the first loading situation, case 1, the artesian head in the middle Chicot aquifer, in the Alta Lorna Sand (Rose, 1943), and in the Evangeline aquifer would continue to decline at respective rates of 1, 3, and 3 feet (0.3, 0.9, and 0.9 meters) per year until 1980 and then cease. In the second loading situation, case 2, the artesian head in the middle Chicot aquifer, in the Alta Lorna Sand, and in the Evangeline aquifer would continue to decline at respective rates of 1, 3, and 3 feet (0.3, 0.9, and 0.9 meters) per year until 1990 and then cease.
Date: October 1976
Creator: Gabrysch, R. K. & Bonnet, C. W.
Object Type: Report
System: The UNT Digital Library
Bay Line, Number 16, Fall 1993 (open access)

Bay Line, Number 16, Fall 1993

Quarterly newsletter discussing news, events, and other information related to the management of Galveston Bay and the surrounding watershed.
Date: Autumn 1993
Creator: Galveston Bay National Estuary Program
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Bay Line, Number 17, Winter 1993 (open access)

Bay Line, Number 17, Winter 1993

Quarterly newsletter discussing news, events, and other information related to the management of Galveston Bay and the surrounding watershed.
Date: Winter 1993
Creator: Galveston Bay National Estuary Program
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Bay Line, Number 18, Spring 1994 (open access)

Bay Line, Number 18, Spring 1994

Quarterly newsletter discussing news, events, and other information related to the management of Galveston Bay and the surrounding watershed.
Date: Spring 1994
Creator: Galveston Bay National Estuary Program
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Bay Line, Number 19, Winter 1995 (open access)

Bay Line, Number 19, Winter 1995

Quarterly newsletter discussing news, events, and other information related to the management of Galveston Bay and the surrounding watershed.
Date: 1995-01~
Creator: Galveston Bay National Estuary Program
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Bay Line, Number 20, Spring 1995 (open access)

Bay Line, Number 20, Spring 1995

Quarterly newsletter discussing news, events, and other information related to the management of Galveston Bay and the surrounding watershed.
Date: Spring 1995
Creator: Galveston Bay National Estuary Program
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Bay Line, Number 21, Summer 1995 (open access)

Bay Line, Number 21, Summer 1995

Quarterly newsletter discussing news, events, and other information related to the management of Galveston Bay and the surrounding watershed.
Date: Summer 1995
Creator: Galveston Bay National Estuary Program
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Bay Line, Number 22, Fall 1995 (open access)

Bay Line, Number 22, Fall 1995

Quarterly newsletter discussing news, events, and other information related to the management of Galveston Bay and the surrounding watershed.
Date: Autumn 1995
Creator: Galveston Bay National Estuary Program
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Bay Line, Number 23, Spring 1996 (open access)

Bay Line, Number 23, Spring 1996

Quarterly newsletter discussing news, events, and other information related to the management of Galveston Bay and the surrounding watershed.
Date: Spring 1996
Creator: Galveston Bay National Estuary Program
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Bay Line, Number 24, Fall 1996 (open access)

Bay Line, Number 24, Fall 1996

Quarterly newsletter discussing news, events, and other information related to the management of Galveston Bay and the surrounding watershed.
Date: Autumn 1996
Creator: Galveston Bay National Estuary Program
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Bay Line, Number 25, Spring 1998 (open access)

Bay Line, Number 25, Spring 1998

Quarterly newsletter discussing news, events, and other information related to the management of Galveston Bay and the surrounding watershed.
Date: Spring 1998
Creator: Galveston Bay National Estuary Program
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History

Anahuac

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:100000
Date: 1983
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Anahuac

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:100000
Date: 1983
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Bacliff Quadrangle

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date: 1990
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Bacliff Quadrangle

Satellite image topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date: 2010
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Bacliff Quadrangle

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000
Date: 1957
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Bacliff Quadrangle

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000
Date: 1993
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Bacliff Quadrangle

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000
Date: 1968
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History