Unified Interior Regions

Region 4: Mississippi Basin

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Year Published: 1987

Discharge ratings for control gates at Mississippi River Lock and Dam 18, Gladstone, 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 18, at Gladstone, Illinois, were developed from current meter discharge measurements made in the forebays of the gate structures. Methodology is given to...

Heinitz, A.J.
Discharge ratings for control gates at Mississippi River Lock and Dam 18, Gladstone, Illinois; 1987; WRI; 87-4110; Heinitz, A. J.

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Year Published: 1987

Discharge ratings for control gates at Mississippi River lock and dam 17, New Boston, Illinois

The water levels 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 17, at New Boston, Illinois, were developed from current meter discharge measurements made in the forebays of the gate structures. Methodology is given...

Heinitz, A.J.
Discharge ratings for control gates at Mississippi River lock and dam 17, New Boston, Illinois; 1987; WRI; 87-4165; Heinitz, A. J.

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Year Published: 1987

Discharge ratings for control gates at Mississippi River lock and dam 21, Quincy, Illinois

The water levels 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 21, at Quincy, Illinois, were developed from current meter discharge measurements made in the forebays of the gate structures. Methodology is given to...

Heinitz, A.J.
Discharge ratings for control gates at Mississippi River lock and dam 21, Quincy, Illinois; 1987; WRI; 87-4155; Heinitz, A. J.

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Year Published: 1987

Floods in Iowa: Stage and discharge

This report presents stations descriptions and tables of peak stages and discharges for 280 continuous- and partial-record gaging stations in Iowa. Data for the annual flood series for each gaging station and partial-duration series, at stations where available, are contained in the report.

Lara, O.G.; Eash, D.A.
Floods in Iowa: Stage and discharge; 1987; OFR; 87-382; Lara, O. G.; Eash, D. A.

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Year Published: 1987

Iowa ground-water quality

The population served by ground-water supplies in Iowa (fig. L4) is estimated to be about 2,392,000, or 82 percent of the total population (U.S. Geological Survey, 1985, p. 211). The population of Iowa is distributed fairly uniformly throughout the State (fig. IB), with 59 percent residing in rural areas or towns of less than 10,000 (U.S. Bureau...

Buchmiller, R.C.; Squillace, P.J.; Drustrup, R.D.
Iowa ground-water quality; 1987; OFR; 87-725; Buchmiller, R. C.; Squillace, P. J.; Drustrup, R. D.

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Year Published: 1987

Method for estimating the magnitude and frequency of floods at ungaged sites on unregulated rural streams in Iowa

This report provides techniques and procedures for estimating the probable magnitude and frequency of floods at ungaged sites on Iowa streams. Physiographic characteristics were used to define the boundaries of five hydrologic regions. Regional regression equations that relate the size of the drainage area to flood magnitude are defined for...

Lara, O.G.
Method for estimating the magnitude and frequency of floods at ungaged sites on unregulated rural streams in Iowa; 1987; WRI; 87-4132; Lara, O. G.

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Year Published: 1987

Water resources data Iowa, water year 1986

Water resources data for the 1986 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 110 stream-gaging stations; stage and contents for 8 lakes and reservoirs;...

Melcher, N.B.; Detroy, M.G.; Matthes, W.J.; Karsten, R.A.
Water resources data Iowa, water year 1986; 1987; WDR; IA-86-1; Melcher, N. B.; Detroy, M. G.; Matthes, W. J.; Karsten, R. A.

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Year Published: 1987

Water year 1986 in Iowa: Precipitation and water resources

Water year 1986 was the second wettest on record in Iowa since records began being kept in the late 1800's. This report examines the spatial distribution of precipitation, the deviations from normal precipitation, and the effect of the excess precipitation on the water resources of Iowa. New high ground-water levels were established in water wells...

Karsten, R.A.; Waite, P.J.
Water year 1986 in Iowa: Precipitation and water resources; 1987; OFR; 87-681; Karsten, R. A.; Waite, P. J.

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Year Published: 1987

Effects of cover materials on leaching of constituents from dolomitic lead mine tailings

Five raised-bed test plots were used to study the effects of cover materials on the leaching of constituents from dolomitic Pb mine tailings over a 2-yr period. The cover materials studied were a fertilizer and seed mixture, anaerobically digested sewage sludge, loam and sod, and fallen leaves from silver maples (Acer Saccharinum); one plot was...

Harwood, J.J.; Koirtyohann, S.R.; Schmitt, C.J.

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Year Published: 1987

The effects of sample preparation on measured concentrations of eight elements in edible tissues of fish from streams contaminated by lead mining

The influence of sample preparation on measured concentrations of eight elements in the edible tissues of two black basses (Centrarchidae), two catfishes (Ictaluridae), and the black redhorse,Moxostoma duquesnei (Catostomidae) from two rivers in southeastern Missouri contaminated by mining and related activities was investigated....

Schmitt, Christopher J.; Finger, Susan E.

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Year Published: 1987

Preliminary results from a study of natural slope failures triggered by the storm of November 3.5.1985, Germany Valley, West Virginia and Virginia: Chapter 4 in Landslides of eastern North America

During the first five days of November 1985, a low-pressure system in the Ohio River valley combined with a low-pressure system referred to as Tropical Storm Juan to produce heavy rainfall in the Potomac, James, and Rappahannock River basins. Severe flooding accompanied the rainfall; 43 lives were lost and the flood was estimated to be the most...

Jacobson, Robert B.; Cron, Elizabeth D.; McGeehin, John P.

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Year Published: 1987

The role of stand history in assessing forest impacts

Air pollution, harvesting practices, and natural disturbances can affect the growth of trees and forest development. To make predictions about anthropogenic impacts on forests, we need to understand how these factors affect tree growth. In this study the effect of disturbance history on tree growth and stand structure was examined by using a...

Dale, V.H.; Doyle, T.W.
The role of stand history in assessing forest impacts; 1987; Article; Journal; Environmental Management; Dale, V.H.; Doyle, T.W.