Unified Interior Regions

Region 4: Mississippi Basin

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Year Published: 1986

National water summary 1985: Hydrologic events and surface-water resources

The surface-water resources of the United States, the focal point for this National Water Summary, are extensively developed and managed to provide water supplies, hydroelectric power, navigation, recreational opportunities, and sufficient instream flows to maintain fish and wildlife habitats and adequate water quality. Surface water represents 77...

Moody, David W.; Chase, Edith B.; Aronson, David A.
National water summary 1985; hydrologic events and surface-water resources; 1986; WSP; 2300; compiled by Moody, David W.; Chase, Edith B.; Aronson, David A.

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Year Published: 1986

Bedrock topography of northwest Iowa

Bedrock in Iowa (Hershey, 1969) generally is overlain by deposits of glacial drive and alluvium. The drift, consisting of glacial till and glacial outwash, ranges in thickness from zero to more than 500 feet in western Iowa; the alluvium in stream valleys ranges in thickness from less than 1 foot to more than 70 feet. The configuration of the...

Hansen, R.E.; Runkle, D.L.
Bedrock topography of Northwest Iowa; 1986; I; 1726; Hansen, R. E.

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Year Published: 1986

Bedrock topography of west-central Iowa

Bedrock in Iowa (Hershey 1969) generally is overlain by deposits of glacial drift and alluvium. The drift, consisting of glacial till and glacial outwash, ranges in thickness from zero to more than 500 feet in western Iowa; the alluvium in stream valleys ranges in thickness from less than 1 to more than 70 feet. The configuration of the bedrock...

Hansen, R.E.; Runkle, D.L.
Bedrock topography of west-central Iowa; 1986; I; 1688; Hansen, R. E.; Runkle, D. L.

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Year Published: 1986

Discharge ratings for control gates at Mississippi River Lock and Dam 13, Fulton, Illinois

The water level of the navigation pools on the Mississippi River are maintained by the operation of tainter and roller gates at the locks and dams. Discharge ratings for the gates on Lock and Dam 13, at Fullerton, Illinois, were developed from current-meter discharge measurements made in the forebays of the gate structures. Methodology is given to...

Heinitz, Albert J.
Discharge ratings for control gates at Mississippi River Lock and Dam 13, Fulton, Illinois; 1986; WRI; 86-4134; Heinitz, Albert J.

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Year Published: 1986

Discharge ratings for control gates at Mississippi River Lock and Dam 22, Saverton, Missouri

The water level of the navigation pools on the Mississippi River are maintained by the operation of tainted and roller gates at the locks and dams. Discharge ratings for the gates on Lock and Dam 22, at Saverton, Missouri, were developed from current-meter discharge measurements made in the forebays of the gate structures. Methodology is given to...

Heinitz, Albert J.
Discharge ratings for control gates at Mississippi River Lock and Dam 22, Saverton, Missouri; 1986; WRI; 86-4137; Heinitz, Albert J.

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Year Published: 1986

Discharge ratings for control gates at Mississippi River lock and dam 12, Bellevue, Iowa

The water level of the navigation pools on the Mississippi River are maintained by the operation of tainter and roller gates at the locks and dams. Discharge ratings for the gates on Lock and Dam 12, at Bellevue, Iowa, were developed from current-meter discharge measurements made in the forebays of the gate structures. Methodology is given to...

Heinitz, Albert J.
Discharge ratings for control gates at Mississippi River lock and dam 12, Bellevue, Iowa; 1986; WRI; 86-4135; Heinitz, Albert J.

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Year Published: 1986

Floods in south-central Iowa

Flood profiles and discharges for the great floods of 1981 and 1982 in south-central Iowa are given. The profiles cover the South River, Squaw Creek, Otter Creek, White Breast Creek, Cedar Creek, North Cedar Creek, Chariton River and the South Fork Chariton River. The July 3, 1982, flood-peak discharge at the Cedar Creek gaging stations (05489000...

Heinitz, Albert J.
Floods in south-central Iowa; 1986; OFR; 85-100; Heinitz, Albert J.

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Year Published: 1986

Floods in the Floyd River basin, Iowa

Flood elevation profiles and flood peak discharges for the floods of 1953, 1962, 1973, and 1983 in the Floyd River basin are given in this report. The profiles cover the Floyd and West Branch Floyd Rivers. The 1953 flood is the greatest known on the Floyd River since at least 1892.

Heinitz, A.J.
Floods in the Floyd River basin, Iowa; 1986; OFR; 86-476; Heinitz, A. J.

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Year Published: 1986

Floods of June-July 1982, in Iowa

Record flood-peak discharges occurred in June and July, 1982, in southwestern, south-central, and east-central Iowa. The record flood peaks resulted from rainfalls of 6 to 8 inches on soil saturated from persistent moderate to heavy rainfalls that began in May and continued through mid July. May was the wettest across Iowa since 1959, averaging...

Heinitz, A.J.
Floods of June-July 1982, in Iowa; 1986; OFR; 85-151; Heinitz, A. J.

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Year Published: 1986

Technique for predicting ground-water discharge to surface coal mines and resulting changes in head

Changes in seepage flux and head (groundwater level) from groundwater drainage into a surface coal mine can be predicted by a technique that considers drainage from the unsaturated zone. The user applies site-specific data to precalculated head and seepage-flux profiles. Groundwater flow through hypothetical aquifer cross sections was simulated...

Weiss, L.S.; Galloway, D.L.; Ishii, Audrey L.
Technique for predicting ground-water discharge to surface coal mines and resulting changes in head; 1986; WRI; 86-4156; Weiss, L. S.; Galloway, D. L.; Ishii, Audrey L.

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Year Published: 1986

Water resources data Iowa, water year 1985

Water resources data for the 1985 water year for Iowa consist of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; ground-water levels and ground-water quality. This report contains discharge records for 111 stream-gaging stations; stage and contents for 8 lakes and reservoirs;...

Melcher, N.B.; Detroy, M.G.; Matthes, W.J.; Hansen, R.E.
Water resources data Iowa, water year 1985; 1986; WDR; IA-85-1; Melcher, N. B.; Detroy, M. G.; Matthes, W. J.; Hansen, R. E.

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Year Published: 1986

Hydrology of carbonate aquifers in southwestern Linn County and adjacent parts of Benton, Iowa, and Johnson Counties, Iowa

Groundwater is the major source of water in Linn County and the surrounding area. Approximately 90 percent of the groundwater production is from Silurian, Devonian, and Quaternary aquifers. The Silurian and Devonian aquifers consist of limestone and dolomite with minor shale beds, which have a regional dip to the southwest of approximately 20 feet...

Wahl, Kenneth; Bunker, Bill J.