A view of the job site. It took 487' of 30" casing to cross eight lanes of interstate highway, two sets of railroad tracks and all the associated right of way.
 
You can see the Bureau of reclamation water line running above the casing. This high pressure line could not be shut down and limited both the size of our casing and the allowable error in grade.
 
Another view of the job site.
 
Conditions were wet, with running soils. This makes maintaining accurate grade difficult, as the leading eadge of the casing wants to dive.
 
Installation of carrier pipe. Pre-manufactured casing spacers were used to support the sewer pipe. These eliminated the need for backfill inside the exceptionally long run of casing pipe.
 
Another view of the job site. This one taken shortly after completion.