This memorandum, constitutes a report on the results of experiments conducted at the U. S. Waterways Experiment Station on a small scale model of that reach of the Mississippi River near and including Dogtooth Bend (Mile 32.7 above to Mile 4.0 below Cairo).

"The intent of this report is to provide technical and practical information which will be of value to those responsible for preparation, review or accomplishment of specifications for the establishment of vegetative ground cover. [...] The report is concerned primarily with establishment of turf grasses in the continental United States. A brief discussion of maintenance practices is included as such practices have a direct bearing on the successful establishment of the desired ground cover" (p. 1).

Preface: The purpose of this report is to present the results of a condition survey performed on taxiway 14, Davis-Monthan Air Force Base, in accordance with addendum 6 to Instructions and Outline, "Condition Survey for Existing Pavements."

Report describing the results of a nine-month feasibility study of environmental data to determine various possible methods for organizing and presenting such data for Office of Civil Defense (OCD) use.

Report providing comprehensive descriptions of design methods for analyzing the stability of slopes and foundations.

Report on investigations into the construction of a lock in the Arkansas River including results of model tests and recommendations.

Report describing the results of studies meant to provide "determination of the most functional and economical location for a lock in the vicinity of Buffalo, N. Y., and evaluation of navigation conditions at the entrance to an overland canal joining the American channel of the Niagara River northwest of North Tonawanda, N. Y." (p. ix).

Abstract: Geologic field reconnaissance and geophysical evaluation of eight areas in the western part of the United States were made to locate a site for conducting tests of a prototype hard rock silo (HRS).

"A study was conducted to (a) investigate the effects of soil surface conditions on one-pass drawbar pull capabilities of a wheeled vehicle, (b) relate optimum drawbar pull to soil strength as measured by several instruments, (c) develop tentative equations for predicting optimum tractive coefficient, and (d) determine effects of tire characteristics (tread pattern and deflection) on drawbar pull. One hundred and six drawbar pullslip tests were conducted with a 3/4-ton M37 truck at a gross weight of 7240 lb. One tire size (9.00-16, 8-PR), two tread patterns (smooth and nondirectional military), and two tire deflections (15% and 35%) were tested. Surface conditions varied from dry and firm, to wetted with small amounts of water, to flooded. Asphalt surfaces also were tested" (p. xi).

"The purpose of this report is to present the results of a condition survey performed at Altus Air Force Base (AAFB), Oklahoma, during 14-17 May 1972. The three major areas of interest considered in this condition survey were the structural condition of the primary airfield pavements, the condition of pavement repairs and the types of maintenance materials that have been used at this airfield, and any detrimental effects of frost to the pavement facilities" (p. 1).

The purpose of this report is to present the results of a condition survey performed at Beale Air Force Base (BAFB), California, during 4-7 November 1972. The two major areas of interest considered in this condition survey were the structural condition of the primary airfield pavements and the condition of pavement repairs and the types of maintenance materials that have been used at this airfield.

The purpose of this report is to present the results of a condition survey performed at Castle Air Force Base (CAFB), California, during 8-10 November 1972. The two major areas of interest considered in this condition survey were the structural condition of the primary airfield pavements and the condition of pavement repairs and the types of maintenance materials that have been used at this airfield.

"The purpose of this report is to present the results of a condition survey performed at Ellsworth Air Force Base (EAFB), South Dakota, during 6-9 April 1972. The three major areas of interest considered in this condition survey were the structural condition of the primary airfield pavements, the condition of pavement repairs and the types of maintenance and materials that have been used at this airfield, and any detrimental effects of frost to the pavement facilities" (p. 1).

"The purpose of this report is to present the results of a condition survey performed at K. I. Sawyer Air Force Base (KISAFB), Michigan, during 24-25 April 1972. The three major areas of interest considered in this condition survey were the structural condition of the primary airfield pavements, the condition of pavement repairs and the types of maintenance materials that have been used at this airfield, and any detrimental effects of frost to the pavement facilities" (p. 1).

The purpose of this report is to present the results of a condition survey performed at Malmstrom Air Force Base (MAFB), Montana, during 24-27 April 1972. The three major areas of interest considered in this condition survey were the structural condition of the primary airfield pavements, the condition of pavement repairs and the types of maintenance materials that have been used at this airfield, and any detrimental effects of frost to the pavement facilities.

The purpose of this report is to present the results of a condition survey performed at Minot Air Force Base (MAFB), North Dakota, during 11-15 April 1972. The three major areas of interest considered in this condition survey were the structural condition of the primary airfield pavements, the condition of pavement repairs and the types of maintenance materials that have been used at this airfield, and any detrimental effects of frost action to the pavement facilities.

"The purpose of this report is to present the results of a condition survey performed at Wurtsmith Air Force Base (WAFB), Michigan, during 1-5 May 1972. The three major areas of interest considered in this condition survey were the structural condition of the primary airfield pavements, the condition of pavement repairs and the types of maintenance materials that have been used at this airfield, and any detrimental effects of frost to the pavement facilities" (p. 1).

Summary: Several series of laser instrument alignment surveys were made at the exterior roadway deck level and within the interior inspection gallery of Keystone Dam, Oklahoma, and compared with theodolite surveys over the same lines and under similar conditions.

A bibliography for the investigation of the hydraulic regime and physical nature of bottom sedimentation at the Columbia River dump site.

Abstract: The general objective of this research is to develop methods for analysis of stresses and movements in embankments.

Appendix detailing the results of experiments conducted on the propagation of vegetation at the James River Habitat Development Site, in addition to results of laboratory germination tests of all the species of seeds used at the Site. This appendix accompanies the final report of the habitat field investigations of the Windmill Point Marsh Development Site, James River, Virginia.

Appendix detailing the results of experiments conducted on the propagation of vegetation at the James River Habitat Development Site, in addition to results of laboratory germination tests of all the species of seeds used at the Site. This appendix accompanies the final report of the habitat field investigations of the Windmill Point Marsh Development Site, James River, Virginia.

Final report of a project for the improvement and stabilization of Murrells Inlet, near Myrtle Beach, South Carolina. A model study was performed to aid in preconstruction planning and design of structural solutions to the problem of providing a stabilized channel of sufficient depth and width with provisions for sand bypassing.

The information provided in this report follows the investigations of the use of dredged material islands made by colonial nesting seabirds and wading birds in Texas initiated in October 1976.