Dr. Koehn, Enno
Department of Civil Engineering, Lamar University, Beaumont, TX 77710
Phone: (409) 880-8757, FAX: (409) 880-8121, E-Mail: koehneu@hal.lamar.edu
Ph.D. Wayne State University, 1975
M.C.E. New York University, 1965
M.S. Columbia University, 1960
B.C.E. The City University of New York, 1958
Areas of Expertise
Construction Planning;Scheduling and Productivity; Construction Design and Analysis.

Representative Research Activities
 • Educational, Professional and Ethical Aspects of Civil Engineering
 • Productivity and International Construction Technology
 • Infrastructure/Rehabilitation Costs and Construction
 • Safety, OSHA, D/WBE, and EEO Rules and Regulations in Construction
 • Loads on Temporary Structures
 • Social and Environmental Impacts and Delays in Construction
 • Citizen Response to Construction
 • Probabilistic and Pre-Design Cost Estimating

Selected Publications
“Quality, Environmental, and Health and Safety Management Systems for Construction Engineering,” (with N.K. Datta), J. Constr. Engrg. and Mgmt., ASCE, Sept./Oct. 2003, pp.1-8.
“Rebuilding the World Trade Center,” (with R.F. Borg et al.), Pract. Periodical on Struct. Dsgn. & Constr., ASCE, Aug. 2003. pp.137-145.
“CI Redevelopment Report urges Lower Buildings, Mixed-Use Complex at WTC Site,” (with R.F. Borg et al.), ASCE News, May 2002, p.6.
“Mechanistic Behavior of Concrete Box Culverts under Strip Footings,” (with M. Jao et al.), Proceedings, Developments in Theoretical and Applied Mechanic (SESTAM) Conference, Volume XXI, Orlando, FL, May 2002, pp. 675-681, http://www-mae.engr.ucf.edu/sectam.
“Assessment of Communications and Collaborative Learning in Civil Engineering Education,” J. Prof. Issues in Engrg. Educ. & Pract., ASCE, Oct. 2001, pp. 160-165.
“ABET Program Criteria: Review and Assessment for a Civil Engineering Program,” J. Engrg. Educ., ASEE, Jul. 2001, pp. 445-455.
“Quality of Building Construction Materials (Cement) in Developing Countries,” (with M. Ahmmed), J.Arch. Engrg., ASCE, June 2001, pp. 44-50.
“Prefabricated Housing in Developing Countries” (with M. Soni), Creative Systems in Structural and Construction Engineering, A. Singh, Editor, A. A. Balkema, Rotterdam/Brookfield, 2001, pp. 57 - 62.
“Professional Program Criteria for Civil Engineering Curriculums,” J. Prof. Issues in Engrg. Educ. & Pract., ASCE Oct. 2000, pp. 174 - 179.
“Flooding in Developing Countries: Dhaka,” (with M. Khan), Proceedings, Texas Section ASCE Spring Meeting, Austin, TX, April 2000, pp. 289 - 298.
“Productive Construction in Developing Regions,” (with H. Mehta), Proceedings, ASCE Construction Congress VI, Orlando, Florida, Feb. 2000, pp. 416 - 425.
“Social Concerns in Utility Maintenance Construction,” (with M. Garcia), Proceedings, ASCE Construction Congress VI, Orlando, Florida, Feb. 2000, pp. 426 - 434.
“Safety Management: Problems Encountered and Recommended Solutions,” (with J. M. Wilson, Jr.), J. Constr. Engrg. and Mgmt., ASCE, Jan./Feb. 2000, pp. 77 - 79.
“ABET Program Criteria for Educating Engineering Students,” Proceedings, International Conference on Engineering Education, Czech Republic, Aug. 1999, No. 413, http://www.fs.vsb.cz/akce/1999/ICEE99.
“Production Rates for International Projects in Asia,” (with M. U. Ahmed), Cost Engineering, AACE International, Aug. 1999, pp. 38 - 44.
“Modern Construction in Developing Countries” (with H. D. Mehta), Transactions, AACE International, Denver, CO, June 1999, pp. INT. 02.1 - INT. 02.3.
“Preparing Students for Engineering Design and Practice,” J. Engrg. Educ., ASEE, April 1999, pp. 163 -168.
“Safety and Construction in India” (with S. Reddy), Implementation of Safety and Health on Construction Sites, A. Singh, J. Hinze, and R. J. Coble, Editors, A. A. Balkema, Rotterdam/Brookfield, 1999, pp. 39-45.
“Professional Design Component for Civil Engineering Curriculums,” J. Prof. Issues in Engrg. Educ. & Pract., ASCE, April 1999, pp. 35-39.
“Managing Industrial Construction Safety in Southeast Texas” (with R. Harper), J. Constr. Engrg. and Mgmt., ASCE, Nov./Dec. 1998, pp. 452-457.
“Production Rates for International Projects in Asia” (with M. U. Ahmed), Transactions, AACE International, Cincinnati, OH, June 1998, pp. INT.02.1 - INT 02.7.
“The Need for a Cost-Effective System” (with F. Azimzadeh), Transactions, AACE International, Cincinnati, OH, June 1998, pp. PROD.02.1 - PROD.02.4.
“Future Design Constraints in Engineering (Construction) Education,” Proceedings of the Second A. J. Etkin International Seminar, Technion, Haifa, Israel, May 1998, pp. 177 - 185.
“Educational Criteria for Engineering Design and Practice,” Proceedings, ASEE Gulf-Southwest Conference, New Orleans, LA, March 1998, pp. 177 - 182.

Awards and Professional Membership
   
• Chi Epsilon, Chapter Honor Member, 2003
• ASCE, Best Paper Finalist, J. Prof. Issues in Engr. Educ. & Pract., 2002
• ASEE, Nomination for Best Paper Award, Annual Conf. Proc., 1999
• URO, Research Award, 1998,1999
• ASCE, Certificate of Appreciation Award, 1996
• ASCE, Certificate of Appreciation, Texas Section, 1989,91,92,93
• ASCE, Certificate of Appreciation Award, 1987
• ASCE, Elected Fellow, 1986
• CERL, International Construction Technology, 1985-86
• CERL, Engineering Work Rate Factors, 1985
• CERL, Maintenance Management Systems, 1984-85
• CERL, Construction Productivity, 1983-85
• ASCE, Presidential Citation (Indiana Section), 1983
• ASCE, Certificate of Service Award, 1983
• NSF, Construction Research Seminar, 1982
• DNR, Rehabilitation of Abandoned Mine Lands, 1981-82
• NASA-ASEE, System Design Study, 1977
• ERDA, Faculty Seminar, 1976
• NSF, Faculty Fellowship, 1972-73
• Wayne State University, Graduate Scholarship, 1972-73
• NSF, Faculty Seminar, 1972
• NSF, Computer Aided Design Research, 1970-72
• MIT, Faculty Seminar, 1971
• University of Houston, Advanced Science Seminar, 1968
• NSF, Buckling Research, 1964-65