300 



^ 



50 



40 



C 25 



20 



15 



Wood Sheeting 



Bulkhcod 



3 Feet High 



Got 

 3 Fee 



ions 



t High 



Rock 

 Revetment 

 3 Feet High 



Sondbog 

 Revetment 

 3 Feet High 



Morsh 



30 Feet Wide 



Plonted with 



Nursery 



Seedlings 



Mor 



30 Feet 



Plonte 



Spr 



sh 



Wide 

 d with 



Figure 10. Cost comparison (dollars per linear foot) of 

 various shore stabilization methods (structural 

 costs after Eckert, Giles, and Smith, 1978). 



Design life of vegetative stabilization projects is about 5 to 10 years 

 (Knutson, et al. , 1981), which is comparable to other low-cost shore protec- 

 tion measures. 



EXAMPLE PROBLEM 



The following examples demonstrate the use of guidelines for a property 

 owner who wishes to stabilize 300 feet (90 meters) of shoreline: 



1. Determining site suitability: 



GIVEN ; The shoreline is located along a tidal river. The distance across the 

 river (fetch perpendicular to shore) is about 0.6 mile (1 kilometer). The 

 distance across the river 45° to either side of perpendicular is about 

 0.9 mile (1.5 kilometers). The shoreline is relatively straight and the 

 sand on the eroding beach is fine (0.25 millimeter). 



21 



