chunk.setBlocks(6, 10, base2Y - 1, base2Y, 15, 16, sewerMaterial, chunkOdds, sewerCeilingData, sewerWallData);
chunk.setBlocks(0, 1, base2Y - 1, base2Y, 6, 10, sewerMaterial, chunkOdds, sewerCeilingData, sewerWallData);
chunk.setBlocks(15, 16, base2Y - 1, base2Y, 6, 10, sewerMaterial, chunkOdds, sewerCeilingData, sewerWallData);
// cardinal directions known walls and ditches
if (!roads.toNorth()) {
chunk.setBlocks(5, 11, sewerY, base2Y, 0, 1, sewerMaterial, chunkOdds, sewerWallData, sewerFloorData);
chunk.setBlocks(5, 11, base2Y - 1, base2Y, 1, 2, sewerMaterial, chunkOdds, sewerCeilingData, sewerWallData);
} else {
chunk.setBlocks(7, 9, sewerY - 1, sewerY, 0, 7, emptyMaterial);
}