Item Number: RP19
Map Scale: 1:24,000

The Salt Creek drainage basin in Monroe, Brown, and Jackson Counties, Ind., was studied to provide basic information for the planning of the Monroe Reservoir. This report principally concerns the dam site and spillway areas of the proposed reservoir. Four units, defined on the basis of engineering characteristics, are present in the reservoir area. Impermeable siltstones of the Borden Group form the valley walls along Salt Creek and will confine the reservoir. Rocks of a second unit, the Harrodsburg and Salem Limestones, cap the ridges high above flood-pool level (556 feet). The two remaining units consist of unconsolidated materials in the valley of Salt Creek. Terrace deposits above the flood plain are sandy to gravelly silts. Valley-fill deposits as much as 70 feet feet thick are presentin the valley of Salt Creek. Clayey silts predominate in the valley fill and forma satisfactory foundation material of low permeability for the dam. Two spillway locations have been considered for the Monroe Reservoir. The first, a short distance from the dam site, would require a channel through about 90 feet of bedrock, the upper 50 feet of which would be the Harrodsburg Limestone. This site would be near the dam, and rock excavated from the spillway channel could be used as fill material in the dam. A second potential spillway site lies about 1 mile south of the dam. Here the spillway channel would cut through 40 feet of material, 20 to 30 feet of which are unconsolidated sediments and the remainder is siltstone belonging to the Borden Group.



Winslow, J. D., Gates, G. R., and Melhorn, W. N., 1960, Engineering geology of dam site and spillway areas for the Monroe Reservoir, southern Indiana: Indiana Geological Survey Report of Progress 19, 19 p., 2 figs., 3 tables, 1 pl.


You may also like:

Keywords: engineering geology

Can't find what you're looking for? Feel free to contact us directly:

Publication Sales Office
Indiana Geological and Water Survey
420 N. Walnut St.
Bloomington, IN 47404
812-855-7636 (phone)
812-855-2862 (fax)
IGSINFO@indiana.edu

IGS Return Policy

All sales are final. Materials may not be returned after they have been accepted by the customer. Any discrepencies in mail orders must be reported to IGWS within 10 days of receipt of order.

The Indiana Geological and Water Survey will refund the purchase price and sales tax of products if returned with the original sales receipt within 10 days of receipt of order. Refunds will be issued with the same method of payment as indicated on the original receipt except for cash purchases, which will be refunded by check. Items must be returned in the same condition as purchased. Refunds on digital products and services are not allowed, except for defective media such as CD-ROMs, flash drives, and so on. The customer is responsible for paying shipping costs to return items.