Each download presented here is for educational purposes only and is not intended to render engineering or other professional services. Use of the download in whole or in part for design, construction or any other application is at the sole risk of the user. If such engineering or professional services are required, the assistance of an appropriate professional should be sought. NCS Consultants, LLC, shall not be responsible or liable in any way for any errors, omissions, or damages arising out of the use of the information provided in any download.

• Soils and Foundations Reference Manual - Volume I and Volume II (December 2006) - Prepared by Naresh Samtani and Ed Nowatzki for the Federal Highway Administration. Read more about this document. Note: You need to download each volume separately.
• Hollow-Core Soil Nails State-of-the-Practice (April 2006) - Prepared by Naresh Samtani and Ed Nowatzki for the Federal Highway Administration. Read more about this document.
• Integrity testing of drilled shafts - existing and new techniques by N.C. Samtani, F. Jalinoos and D.M. Poland. The paper was presented by Dr. Samtani at ADSC's GEO3 conference in Dallas, TX November 6-9, 2005.

• Development of Factored Bearing Resistance Chart by a Geotechnical Engineer for Use by a Bridge Engineer to Size Spread Footings on Soils Based on Service and Strength Limit States - NCS Policy Memo 1.
• Interim Guidance - Design of Drilled Shafts in Gravels and Gravelly Soils Exhibiting Drained Behavior - NCS Policy Memo 2.
• Development of Drilled Shaft Axial Resistance Charts for Use by Bridge Engineers - NCS Policy Memo 3.
• Some Practical Considerations for LRFD Implementation for Geotechnical Features. Presented by Naresh Samtani at 56th Annual Minnesota Geotechnical Engineering Conference, Minneapolis, Minnesota, February 29, 2008.
• Practical Suggestions for Implementation of LRFD Specifications for Geotechnical Features. Presented by Naresh Samtani at the 2008 TRB (Transportation Research Board) Conference in Washington D.C. on January 16, 2008.
• LRFD Article 2: LRFD for Substructures - Concept of Failure and Reliability Index - by Naresh Samtani. Revised May 8, 2007 (R0). NCS Article #: 01-0607-R0. HTML version also published at GeoPrac.net.
• LRFD For Bridge Substructures Presentation Notes (AzSCE May 8, 2007) - Presented by Naresh Samtani to the Bridge Technical Comittee of the AzSCE. (Revised May 18, 2007)
• LRFD Article 1: LRFD for Substructures - Limit States and Interaction between Structural and Geotechnical Specialists - by Naresh Samtani. Revised May 8, 2007 (R0). NCS Article #: 01-0507-R0. HTML version also published at GeoPrac.net.
• A Primer on LRFD (January 10, 2006) - Presentation notes from a Naresh Samtani presentation to the AzSCE Bridge Technical Committee. Read more about our LRFD work.

• Geotechnical Engineering of the I-10 Widening Project - St. Mary's Rd. to 29th St. Segment (February 1, 2008) - Slide notes from a Randy Post presentation to the U of A Civil Engineering Department seminar course.
• Geotechnical Remediation for a Highway Crossing an Earth Fissure (November, 2006) - Slide notes from a Naresh Samtani presentation at the November 6, 2006 ADOT DIRP meeting, and at the November 17, 2006 University of Arizona, Civil Engineering Department Seminar Series. Read more information about the Loop 202: University to Southern Project.
• ADOT and MSE Walls - What is the latest? (July 12, 2005) - Slide notes from a Naresh Samtani presentation to the AzSCE Bridge Technical Committee.
• Ed Nowatzki's Veterans Memorial Overpass (VMO) Presentation - Notes from the presentation given at the 2005 Roads and Streets Conference in Tucson, AZ. Read more about the VMO Project.

• The Ultimate Geotechnical Engineering Challenge by Edward A. Nowatzki (May 2007). A retrospective on his work on the geotechnical aspects of the Apollo 11 lunar module or "LM" while working for Grumman Aircraft Engineering Company in the late 1960's. HTML version also published at GeoPrac.net.
• Earth Fissure Field Trip Handout (6-29-06): Red Mountain Freeway (Loop 202) - University to Southern
• NCS Geotechnical Training Courses Brochure
• A partial version of the MSE Wall Design Checklist prepared by NCS for ADOT
• A collection of wall and abutment photos from the VMO Project
• NCS Sample Soil and Rock Logs
• NCS Sample Lab Data Presentation
• NCS Sample Fence Diagram