LEGEND 



Modeled Longshore Transport 

 Potential In m^/yr (COSMOS 2D/3D) 



't 



Souttiariy Trantport 

 Rot* Incraoalng 

 oi Profils 0«pthi 

 Dwrraas* NMr F(ll«t 



Deposition in 

 Bathymetry Depression 



ChannsI Dredging 

 tOk m3/yr 



<liUliUX> Accretion 

 < sr--------s > Erosion 



(^^~^ Dredging 



of area offshore 

 of the Feeder Seach 

 (possibly related to reduced 

 urtshment volumes) 



lake: 

 michigan 



Sediment Sink for ttia Alongstiore 

 Transport of Fine and Coarse Sand 



Deposition in ttie form of on Offsti' 



NOTES: 



I. Annuel Nouriahment Volumes only 48% of 1976/91 rates 



Z. Decreased sand cover and steeper nearsbore profiles 

 result in increased rate of cotiesive lowering 



3. Transport Volumes are m3/yT 



4. Cohesive Lowering Estimated at 35.5 m3/yr south of the harbor jetties 



5. High WL = +0.9n 

 Low WL = -t-O.im 

 (IGLD '85) 



Figure 37. 1991 to 1995 descriptive model 



82 



Chapter 5 Interpretation of Results - A Descriptive Model of Coastal Morpfiodynamics 



