UndergroundStructureKind

Must be one of:

• "UndergroundStructureKind.tunnel"
• "UndergroundStructureKind.pad"
• "UndergroundStructureKind.handhole"
• "UndergroundStructureKind.enclosure"
• "UndergroundStructureKind.pullbox"
• "UndergroundStructureKind.trench"
• "UndergroundStructureKind.manhole"
• "UndergroundStructureKind.subsurfaceEnclosure"
• "UndergroundStructureKind.burd"
• "UndergroundStructureKind.vault"