prepared by Vic Claassen.
Introduction -- Methods -- Results -- Conclusions and recommendations -- References -- Appendix A: Reference graphs for N release from previous studies.
"Sponsored by Colorado Department of Transportation in cooperation with the U.S. Department of Transportation Federal Highway Administration, Colorado Department of Transportation - Research Branch."
"July 2013."
Includes bibliographical references.
Report no. CDOT 2013-14.
Final report.
Online resource; title from PDF cover (March 2016)