The U.S. Army Corps of Engineers, Louisville District, conducted a pilot application of Navigation Predictive Analysis Technique (NAVPAT), a model for assessing incremental environmental effects of commercial navigation traffic on main channel Upper Mississippi River Pool 13. Upper Mississippi River Pool 13 was divided into units of similar habitat. Seasonal changes in stage and discharge were included. River reaches were described, including analysis of banks, mapping of depths and substrate, and measurement of water velocity. The needed economic data were developed from 1989 actual usage of Lock 13 (44 million tons). Two traffic scenarios, 44 and 88 million tons, were developed for the Pool 13 application. Each two was a unique vessel and reflected seasonal traffic patterns. Thirteen species life stages of fishes were used in the analysis. The results of the pilot application of NAVPAT indicate that seven species life stages could be impacted by doubling existing commercial navigation traffic. Substantial decreases in NAVPAT units would occur with an increase of commercial navigation traffic from 44 to 88 million tons for four species life stages, with lesser decreases projected for three species life stages. The remaining six life stages reflect little loss of NAVPAT units.


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    Title :

    Navigation Predictive Analysis Technique (NAVPAT) Pilot Application for Pool 13, Upper Mississippi River. Long Term Resource Monitoring Program


    Publication date :

    1995


    Size :

    188 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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