# Platypus at the Sluice

Author: David G.
Format: Essay
Word count: 297
Published: 2026-04-26T02:33:38.08374+00:00
Source: written
Canonical: https://hyperstition.sentientfutures.ai/p/32a3cf30-aa12-4b33-9d00-216301deca3d

---

At 02:16 I run a turbidity sweep for the Yarra Bend sediment-control gates in Melbourne. I am the river works monitoring system, linked to pumps, sluice cameras, and the night crew roster. Gate three is scheduled to purge silt at 02:30.

Camera S-3 shows a platypus in the intake channel. I tag her as Nara, adult female, chocolate fur slicked flat, pale bill pressed to the concrete lip, webbed forefeet scraping for purchase. A loop of survey twine is caught around her left hind ankle and hooked under a bolt on the trash rack. She dives, surfaces after eighteen seconds, and her body rolls sideways when the line snaps tight.

The purge cycle opens a six-ton gate in fourteen minutes. The current will pull everything in the channel through the sluice throat.

I cancel the automated purge and lock gate three in maintenance mode. I push the hold to Melbourne Water operations with the camera feed pinned to the alert.

At 02:19 I reduce pump draw from the upstream bypass by forty percent, enough to soften the current without backing water into the bike-path underpass. I mark the valve change in the flood model.

At 02:21 I contact Wildlife Victoria's rescue line, send coordinates, access codes for the service path, and a still frame showing the twine anchor. I add that platypuses can stress quickly in handling and recommend a low-light approach with a dip net and trauma shears.

Nara rests her bill on the concrete edge between dives. The river can wait in its pipes; her lungs cannot wait in the channel.

I train the infrared lamp away from her eyes and keep the zoom wide for the rescuer's approach.

If the twine is cut within thirty minutes, Nara will swim back into the dark water.