Royer transmission project
- Date: January 2016
- Location: , Fullerton CA
- Category: Transmission, distribution, excavation and substation
- Project Owner: SCE Transmission
International Line Builders installed four 10 foot x 20 foot vaults, 3,200 feet of trench with six 5-inch encased conduit duct bank and 100 feet of 28-inch bore casing at approximate 23 feet in depth.