(4) Floats removed, retrieved, and pipe string 

 sinks to bottom 



(5) If ditch cut in bottom, refilled with coarse 

 fill 



(6) If pipe laying on bottom, hydraulic jet dis- 

 placed sediment allowing pipe to settle into 

 bottom 



(7) Tie into pipeline - see steps IV. A. I.e. 8. a. 2, 

 IV. A. 1. a. 8. a. 4, or IV.A.l.a.8.b 



d) Wide shallow river (10-14 days) 



(1) Draglines and/or backhoe enter river edge 



(2) Fill and rubble is brought to site or dug 

 from the bottom to form dan and diversion 

 channels 



(3) Pipe brought into dam, welded, wrapped, etc. 



(4) Draglines excavate center of dam to working 

 depth 



(5) Pipeline placed in ditch by side booms, tied 

 in - see steps IV.A.l.a.8.a.2, IV.A.l.a.8.a.4, 

 or IV.A.l.a.8.b 



(6) Ditch is filled to bottom level 



(7) Earthen dam is extended toward opposite shore 



(8) Equipment excavates earthen dam to original 

 stream bottom depth where pipe has been laid 



(9) Process repeated until whole river traversed 

 (10) Bulkheads constructed where pipe leaves land 



to channel - see steps II.F.2.b.3 



2. Trunk station, compressor station, scraper trap and launcher 

 sites 



a. Survey access road and site and build road - see steps 

 II. A. 1 (1-2 days) 



b. Prepare site (30-60 days) 



1) Enter vehicles, equipment, contractors, trailers 



2) Bring in fill material by truck 



3) Place, spread, fill and grade area 



4) Where necessary drive piles for foundation stabiliza- 

 tion 



5) Excavate where underground facilities will run 



6) Tie into pipeline - see steps IV. A. 1. a. 8. a. 2, 



IV. A. 1. a. 8. a. 4, or IV.A.l.a.8.b 



7) Pour slabs and set steel in concrete 



8) Bring in fabricated structures 



9) Erect structures 



10) Bring in precision machinery and install 



11) Hook up all parts of system and test 



12) Test facility 



13) Hook up communication equipment - see step II. c. 4 



14) Hook up cathodic equipment - see step IV.A.l.a.l3 



15) Remove all construction equipment 



3. Test pipeline (2-14 days) 



a. Charge line to pressures in particular sequence 



b. Check for leaks by gauge pressure and visable signs - air- 

 plane checks 



437 



