Intersection of 59th Avenue & Northern
Glendale, Arizona
Owner:
City of Glendale
Contractor:
Sundt Construction
Description:
Installation of 150' of 82" steel casing for a 72" Duromax storm drain.
Challenges:
Existing utility conflicts consisting of a 12" HP gas to the south and an 8" clay sewer line to the north, leaving 14' between for small bore pit-32' long x 12' wide.
Method:
Hand tunneling
Results:
With the first phase complete, SSC then performed a second bore at the same location, just inches above the new storm drain. Utilizing trenchless auger boring SSC installed 130' of 36" casing for a new 20" DIP waterline. This phase was completed in January, 2010. * Video available on SSC home page.
View Project Video:
Project:
Williams Field Rd. GMP
Dates:
May 29, 2009 to Feb 04, 2010
Location:
Recker Rd. & Williams Field Rd.
Owner:
Town of Gilbert
Contractor:
Haydon Building Corporation
Description:
Installation of 200' of 48" hobas for 69kv Underground Electric.
Method:
Hand tunneling
Results:
Upon completion of the installation of the 48" Hobas Pipe, SSC pushed through a PVC bundle for SRP 64Kv electric. Pipe laser was used to maintain line & grade accuracy. Project successfully completed on schedule.
Project:
U of A Student Recreation Center Expansion
Dates:
April 21, 2008 to July 21, 2008
Location:
U of A Student Recreation Center
E. 6th St and N. Vine Ave., Tucson, AZ
Owner:
Arizona Board of Regents/University Of Arizona,
Tucson, AZ
Contractor:
Sundt Construction
Description:
Jack & Bore under West Stadium and Bear Down Field
Challenges:
Hard soil
Method:
Hand tunneling
Results:
Installed 78' of 92" steel casing for steam tunnels
Project:
Western Waterworks
Dates:
September 4, 2007 to November 9, 2007
Location:
Loop 101 & 7th Street Underpass
Owner:
City of Phoenix Engineering & Architectural Services
Contractor:
SSC
Description:
Dug a 42" OD hand tunnel along a 340' canal to install a 18" OD casing for new waterline.
Challenges:
2'-3' boulders in the path of the waterline.
Method:
Hand tunneling
Results:
Job finished ahead of schedule. Accurate within line & grade.
Project:
ASU New Science Building
Dates:
November 15, 2004 to November 19, 2004
Location:
ASU New Science Building,
Orange St & McCallister Ave, Tempe, AZ
Owner:
Arizona Board of Regents/Arizona State University,
Tempe, AZ
Contractor:
University Mechanical
Description:
SSC provided consulting services to UMEC to design this 64’ tunnel to connect the new building to the chilled water and steam lines on the ASU campus, which is the heating and cooling source for the university’s buildings.
Challenges:
SSC had only 6 days to complete this project, working 24 hours a day. Work had to be performed above ground utilizing a unique platform SSC constructed.
Method:
Hand tunneling
Results:
SSC’s crews worked 24 hours a day and were able to install 64’ of 48” casing in 4 days. A platform/scaffolding system was designed to elevate the tunneling operation 5 feet off the basement floor of the building to the correct height to tie into the chilled water and steam lines that were existing in the street. Our crews used hand tunneling to create the path for the 48” casing to then be pushed in by the jack and bore machine which was also elevated on the platform.
Our tunneling operation prevented the very busy streets of the university from being open cut to tie these lines in. There were many utility conflicts that existed that would have made the open cutting even more difficult. Our innovation allowed for this tie-in to take place without any interruption to the surrounding area.
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