Figure 5. Closer view of 16-ton dolos armor units used on the heads of Manasquan Inlet jetties 

 during 1982 rehabilitation 



Purposes of the Study 



The purposes of the study reported herein were as follows: 



a. To develop methods using limited land-based surveying, aerial photo- 

 graphy, and photogrammetric analysis to assess the long-term stability 

 response of the concrete armor units on the Manasquan Inlet jetties. 



b. To conduct land surveys, broken armor unit inspections, aerial photo- 

 graphy, and photogrammetric analyses to test and improve developed 

 methodologies and accurately define armor unit movement above the 

 waterline. 



c. To reexamine data obtained in previous monitoring efforts and determine 

 and define any changes occurring to the dolos armor layers. 



d. To establish baseline data for the recently installed CORE-LOC armor 

 units. 



Chapter 1 Introduction 



