GRASS 





Gross — •-"-^juiiiim. 



SECTION 



Smooth cord grass {Spavtina Altevni flora) , 

 Bogue Bank, N.C. 



Prototype Installation : 



Rappahannock River, Virginia. 



Eroding banks were graded to about a 1 on 3 slope then planted with 

 tall fescue, bermuda grass, American beachgrass and saltmeadow 

 cordgrass . 



Erosion was successfully controlled (Sharp and Vaden, 1970) . 

 Wave Tank Tests : 



Unknown . 



Design Factors : 



Zero-damage wave height: 0.5 foot (estimated). 



Wave runup: 0.6 to 0.8 compared to smooth slope (estimated) 



Wave reflection: Moderate (estimated). 



Remarks : 



Suggest fencing off slope to prevent cattle from eating the bank 

 protection. 



48 



