Minedshadow, est. 147. Late summer, Year 170, pop ~213 (still haven't figured an accurate census due to that bug... 'tis my best guest right now)
Three deaths from old age this year, one mason, a spinner, and a tailor. So, some of the peasantry have found themselves with nicer, less haul-intensive jobs. There was much rejoicing. The current project is a control-post for the ever-growing number of gate-systems. The dwarves recently completed some other upgrades to the FB silk farm, including isolated kill-rooms should it become necessary to dispose of the silk-producing FBs, with pit-in access above (for feeding, entertainment, science;). The current project sprang from that, and in a sense is more of an extension to the original project. It also will involve eventually "breaching containment" at some point, as the outermost gates can't be re-linked to other levers without having to open them first. Thankfully both the fortress guard and militia squads are highly trained at this point. And both gates force any hostiles to pass through quite a gauntlet of traps and timed upright spear arrays. Those gates will be the last to be re-linked, after the other security points have been linked to the bunker/control room.
Also, during final construction, the dwarves tested one of the kill-rooms by pitting Usu in. The ice-click beetle survived for maybe 20 cycles of the 3x3 10xUpright steel spears driven by manual lever. Usu's abdomen and a puddle of water are all that's left. There's also two other FBs that've shown up in the caverns below. They seem rather uninteresting, so they can stay down there until it's time to work on the outer bulwark gate. Then they'll have to be dealt with. The silk-collection area may also see a future upgrade, for luring other FBs into webbed cage traps. Or at least to spikey-death.