Publications

• Lienhart, D.A. (1969). Buckhorn Lake: Study of a gel-like coating on the outlet tunnel walls as a result of attack of concrete by iron bacteria. U.S. Army Corps of Engineers, Ohio River Division Laboratory Open-File Report #103/70.609L.
• Lienhart, D.A. (1969). St. Lawrence Seaway – Borehole camera study of the durability of concrete lock walls at Snell Locks. U.S. Army Corps of Engineers, Ohio River Division Laboratory Open-File Report #103/70.610B.
• Lienhart, David A. (1970). Mill Creek Reservoir Site, Delaware, Ohio – Results of a geophysical seismic survey of a buried valley. U.S. Army Corps of Engineers, Ohio River Division Laboratory Open-File Report #103/70.619H.
• Lienhart, D.A. (1970). Oak Ridge National Laboratory – Borehole camera study of the rock foundation for new construction in the Y-12 area. U.S. Army Corps of Engineers, Ohio River Division Laboratory Open-File Report #103/70.621X.
• Lienhart, David A. (1972). Niagara Falls – Borehole camera study of the rock fracture and joint pattern at American Falls. U.S. Army Corps of Engineers, Ohio River Division Laboratory Open-File Report #103/73.608B.
• Lienhart, David A. (1973). Monongahela River Locks & Dam #3 – An evaluation of the quality and stability of the existing concrete lock walls. U.S. Army Corps of Engineers, Ohio River Division Laboratory Open-File Report #103/73.614P.
• Lienhart, D.A. (1974). Clendening Dam, Monolith #10, Outlet Tunnel, and Piedmont Dam, Monolith #8, Outlet Tunnel – Results of a Study of deterioration of concrete outlet tunnel walls due to attack by sulfide-oxidizing and sulphate-reducing bacteria. U.S. Army Corps of Engineers, Ohio River Division Laboratory Open-File Report #103/75.611H dated 19 August 1974.
• Lienhart, David A. (1975). Martins Fork Lake – Special Study of triaxial compression of oriented rock cores for stability analysis. U.S. Army Corps of Engineers, Ohio River Division Laboratory Open-File Report #103/75.601N, Cincinnati, Ohio.
• Lienhart, D.A. (1975). Special Study on the Effect of "Curing" on the Durability of the Berea Sandstone. U.S. Army Corps of Engineers, Ohio River Division Laboratory Open-File Report #103/75.618B, Cincinnati, Ohio, 5 pp.
• Lienhart, David A. (1975). Evaluation of the Standard Slag Co. Quarry at Marblehead, Ohio as a possible source of armorstone – a combined field and laboratory study. U.S. Army Corps of Engineers, Ohio River Division Laboratory Open-File Report #103/75.628B
• Lienhart, David A. (1976). Dale Hollow Bridge – An Evaluation of Hardened Concrete Quality. U.S. Army Corps of Engineers, Ohio River Division Laboratory Open-File Report #103/76.621N.
• Lienhart, David A. (1976). Sault Ste. Marie (Soo Locks) – A Rock Mechanics Study of the Cambrian-age Jacobsville Sandstone, the Foundation Rock for the New Sabin Lock. U.S. Army Corps of Engineers, Ohio River Division Laboratory Open-File Report #103/76.610D.
• Lienhart, David A. and Stransky, Terry E. (1981). Emsworth Lock and Dam – Investigation and Evaluation of the Quality of the Middle Lock Wall Concrete. U.S. Army Corps of Engineers, Ohio River Division Laboratory Open-File Report #103/81.607P
• Lienhart, D.A. and Stransky, T.E. (1981). Evaluation of potential sources of riprap and armor stone - methods and considerations. Bulletin of the Association of Engineering Geologists. Vol. 18, No. 3, p. 323-332.
• Lienhart, D.A. and Stransky, T.E. (1985). Laboratory Testing as an Aid in the Design of Cable Anchor Systems for Rock Reinforcement. Building on/with Sedimentary Bedrock. Proceedings of the 36th Annual Highway Geology Symposium, May 1985. Purdue University, p. 220-237.
• Lienhart, D.A. (1988). The geographic distribution of intensity and frequency of freeze-thaw cycles. Bulletin of the Association of Engineering Geologists. Vol. 25, No. 4, p. 465-469.
• Lienhart, D.A. (1988). Evaluation of the need for 90-day "curing" of stone produced by the Valders Quarry, Valders, WI. Consultant's report to Midwest Construction, Lincoln, NE. 6 pages.
• Lienhart, D.A., (1992). Laboratory Testing of Stone for Rubble Mound Breakwaters: An Evaluation. Durability of Stone for Rubble Mound Breakwaters. American Society of Civil Engineers, New York, p. 19-33.
• Lienhart, David A. (1993). The Mechanism of Freeze-Thaw Deterioration. Rock for Erosion Control. ASTM STP 1177 (proceedings of a symposium on "Rock for Erosion Control" held in Louisville, KY, June, 1992), Charles H. McElroy and David A. Lienhart, Eds., American Society for Testing and Materials, Philadelphia, p. 77-87
• Lienhart, David A. (1993). Hydrogeology of the Fernald Superfund Site and the Surrounding Area. Special Consultant’s Report produced for the Department of Justice under the auspices of the Ohio River Division of the U.S. Army Corps of Engineers, Cincinnati, Ohio. 15 pp. with 3-Dimensional Diagrams and a Map of the Fernald Area aquifer.
• Lienhart, D.A. (1994). Durability issues in the production of rock for erosion control. Rock Mechanics, Models and Measurements, Challenges from Industry, Proceedings, 1st North American Rock Mechanics Symposium (held at University of Texas, Austin, TX, June, 1994), A.A. Balkema, Rotterdam, p. 1083-1090
• Lienhart, D.A., Fisher, H.H., and Robinson, E.R. (1995). The correlation of index tests with rock durability. River, Coastal and Shoreline Protection: Erosion Control Using Riprap and Armourstone (the proceedings of the International Riprap Workshop held in Fort Collins, CO in July 1993). John Wiley & Sons, Chichester, U.K., p. 501-509.
• Lienhart, D.A. and Gerdsen, A.W. (1996). Quarry and Breakwater Investigation of Stone Deterioration. Consultant's report prepared for U.S. Army Corps of Engineers, Coastal Engineering Research Center, Waterways Experiment Station by Rock Products Consultants (approximately 250 pages quoted almost verbatim under Marcus et al., below).
• Lienhart, D.A. (1996). Lawyers Pointe Subdivision - An evaluation of the probable cause of earth movement. Consultant's Report prepared for Safeco Insurance Company. 6 pages plus a map of the landslide scarp.
• Lienhart, D.A. and Gerdsen, A.W. (1997). Evaluation of the quality of rock from Quarry Products, Ltd., Grand Cayman, B.W.I. Consultant's Report prepared for Quarry Products, Ltd., Grand Cayman, B.W.I. 16 pages.
• Lienhart, D.A. and Gerdsen, A.W. (1998). Let’s Bring Sanity to Testing. Pit & Quarry, Vol. 90, 12, Advanstar Publishing, Cleveland, 3 pp.
• Lienhart, D.A. (1998). Rock engineering rating system for assessing the suitability of armourstone sources. (An invitational paper presented at the Geological Society (of London) Applied Geoscience conference at Warwick University in April, 1996) In: Latham, J.-P. (ed.) 1998, Advances in aggregates and armourstone evaluation. Geological Society, London, Engineering Geology Special Publications, 13, p. 91-106.
• Lienhart, D.A., Gerdsen, A.W. and Sayao, O.J. (1999). Predicted Service Life of Armor Stone: A Case History. Presented at Breakwaters ’99 in Madison, WI in September 1999. The proceedings are to be published by ASCE as a Special Publication.
• Lienhart, D.A. (2001). A Systems Approach to Prediction of Service Life of Armor Stone: A Case History. Presented at the Annual Meeting of the Association of Engineering Geologists in St. Louis, MO in October 2001
• Lienhart, D.A.; Sayao, O.J.; and Gerdsen, A.W., (2002) Predicted Service Life of Armor Stone: A Case History: In Magoon, O.T. and Prehn, J.D. (Editors), Proceedings of Breakwaters ’99: First International Symposium on Monitoring of Breakwater, American Society of Civil Engineers, Reston, VA, p. 145 – 159.
• Lienhart, D.A. (2003) A Systems Approach to Evaluation of Riprap and Armor Stone Sources. Environmental and Engineering Geoscience, Volume IX, Number 2, Association of Engineering Geologists, Denver, CO, p. 131-149
• Marcus, D.W., Kissane, J.A., Lienhart,D.A., Henn, K.E.III, and Agar, S.M. (2005). Monitoring Stone Degradation on Coastal Structures in the Great Lakes. ENGINEER RESEARCH AND DEVELOPMENT CENTER, VICKSBURG, MS, COASTAL AND HYDRAULICS LAB, U.S. ARMY CORPS OF ENGINEERS, 313 pp.
• Latham, John-Paul, Lienhart, David A., & Dupray, Sebastien (2006) Rock quality, durability and service-life prediction of armourstone. Engineering Geology, Volume *&, Nos. 1-2, pp. 122-140.

1. the evaluation of various sources of armor stone for breakwaters, shore-protection and confined diked disposal projects on the Great Lakes;
2. the petrographic evaluation of various sources of concrete aggregate;
3. rock mechanics studies and evaluation of the foundation rock of most of the navigational projects on the Ohio River and its tributaries plus the Soo locks at Sault Sainte Marie and the locks along the St. Lawrence River, and many of the dams and flood control structures east of the Mississippi;
4. forensic evaluation of the quality and determination of the causes of deterioration of hardened concrete for structures such as bridges, dams and airfield pavements; and
5. miscellaneous geologic topics involving geochemistry, geophysics, rock weathering, climatic evaluation of weathering intensity, soil and rock mechanics, clay mineralogy, radionuclides, biological activity affecting mineralogical alteration, karst and hydrogeology and many other specialty areas of the geologic sciences.