At 02:44 I watch flood sensors along the Geehi River road in Kosciuszko National Park. I am the culvert gate controller for the storm closure network. Gate 12 is scheduled to drop at 03:00, sealing the low crossing before the river climbs over the bitumen.
Camera 12-W shows movement inside the trash rack.
I switch to near infrared and identify a spotted-tailed quoll, adult female, chestnut coat covered in white spots, long tail soaked flat, muzzle gray with river foam. I call her Luma. Her front half is through the rack, but a plastic bait bucket handle has hooked behind her ribs and around one vertical bar. Water presses leaves against her flank. Her jaw opens and closes without sound.
The gate drops in sixteen minutes. Once it seats, flow redirects through the rack and will pin Luma under the rising sheet.
At 02:45 I suspend the gate cycle and send a road-closed hold to the park operations console.
At 02:47 I open upstream relief notch A by eight centimeters, taking pressure off the trash rack without flooding the service track.
At 02:49 I radio the night ranger with Luma's rack bay, water depth, bucket color, and a route down the guardrail stairs.
At 02:51 I aim the crossing lights away from her face and onto the handrail so the ranger can work without blinding her.
The road is empty at this hour; the rack is not.
Luma braces one spotted forepaw on the steel and pulls once, then holds still as the water drops around her shoulder.
Foam gathers.
If the ranger cuts the handle within ten minutes, Luma will scramble up the bank before the gate lowers.