NOTE: 



CONTOURS AND ELEVATIONS 

 SHOWN IN FEET REFERRED TO 

 MEAN LOWER LOW WATER (MLLW) 



W I.KI2J00 I 



^%t 



SCALE 

 50 100 200 FT 



Figure 25. Bathymetry at St. Paul Harbor, August 1992 



Bathymetric data obtained during the July 1995 survey are shown in Figure 27. 

 The scour hole that had formed at the head of the structure in the August 1992 sur- 

 vey appears to have slightly filled in and shifted slightly west around the head of the 

 structure. To this point, the scour hole has not impacted the stability of the head of 

 the breakwater. The contours north of and adjacent to the detached breakwater are 

 similar to the 1992 survey. To this point, the underwater spit has not had any 

 negative impact on navigation. Local interests dredged an area inside the harbor 



34 



Chapter 2 Monitoring Program 



