Having been in operation since 1957, Vandenberg Air Force Base has grown to support over 3,300 onsite residents, including thousands more that commute to the base daily. With growth spanning 57 years, the infrastructure of the base has been expanded quite haphazardly, resulting in numerous weaknesses throughout.
Yamabe & Horn completed the design build of the project, receiving the 35% design from CH2M Hill. The project involved significant utility research as the maps had not been well maintained over the life of the base. Yamabe & Horn’s ground penetrating radar system allowed for faster location of utilities and was a factor that resulted in only two change orders through the course of the entire project.
In addition to the utility challenge, there were two pipelines that traveled under the active airstrip, requiring significant coordination and planning to not interrupt regular usage of the airstrip while the pipes were abandoned and backfilled with gravel concrete. Traffic control was also required to keep access to the medical clinic and police station open during construction.
In the end, Yamabe & Horn were able to deliver savings of over $6 million, on the planned budget of $16 million, to the base due to their efficiency with utility identification, cost estimation, and rigorous construction management.
Brandon Broussard, PE
Ryan Rabbon, PE