Table B-4. Elevations of pipe reference marks relative to MSL, Hollywood. 





Elevation (ft) 





Feb. 1969 to 1 Aug. 1971 



1 Aug. 1971 to 23 Jan. 1973 



23 Jan. 1973 through June 1973 ^ 



Pipe 



Profile line 



Profile line 



Profile line 





I 



II 



I 



II 



I 



II 



1 

 2 

 3 

 4 

 5 

 6 

 7 

 8 

 9 



14.9 



12.1 



11.0 



8.0 



4.3 



1.5 



2.2 



-1.9 



-1.4 



15.1 



12.2 



8.6 



5.8 



1.1 



-0.1 



-2.1 



-0.8 



-2.1 



15.1 

 12.4 

 11.2 

 7.2 

 4.8 

 1.3 

 2.2 

 1.6 

 0.3 



16.1 



13.2 



10.5 



6.8 



2.8 



0.0 



1.0 



-2.5 



-3.1 



15.3 



13.6 



12.0 



3.9 



8.2 



4.9 



2 



4.2 



2 



16.2 



13.8 



11.2 



2.4 



-1.1 



4.6 



3.6 



2 



2 



During this period pipe tops were used as reference marks. 

 Missing pipes. 



120 



