Featured Work
I-15 Design-Build South NDOT Bridge H-2948
Bridge H-2948 is a 435-foot long, 4-span Cast-In-Place Post-Tensioned (CIP P/T) concrete box girder bridge of uniform width with an intermediate straddle bent that carries the Southbound Collector/Distributor (C/D) Road 1 over Blue Diamond Road....
I-15 Design-Build South NDOT Bridge H-2956
Bridge H-2956 is a 356-foot long, three-span Cast-In-Place, Post-Tensioned (CIP P/T) concrete box girder bridge with a straddle bent and a single column bent that carries the Southbound Collector/Distributor (C/D) Road 2 over the Southbound I-15 to Eastbound I-215 Ramp....
I-15 Design-Build South Structural Lead
The I-15 South Design-Build project stretches from Tropicana Avenue to just south of Silverado Ranch Boulevard in Clark County, Nevada....
YouTube Engineered Demolition Channel
Check out Sigma's YouTube Engineered Demolition Channel! Featured projects include the McCarran ATS Tunnel Demolition and the Hunters Point Power Plant Demolition....
Christchurch, New Zealand Demolition Support
Sigma was contracted to assist the United States Army Corps of Engineers Pacific Command with earthquake recovery efforts in Christchurch, New Zealand in March and April 2011....