Earlier this year, the last two of the 248 pre-cast concrete girders were placed for the pergola section of the Conejo Viaduct. Ironworkers and carpenters are now working on the upper edge beams of the structure, the portion of the structure that provides support and ties the pre-cast concrete girders together. To date, more than 9,000 cubic-yards of concrete have been placed to form the edge beams for the structure, with another 1,400 cubic-yards still needing to be placed.