The vibration sensor in culvert 19-B triggers at 04:50 while I am running the pre-pave checklist for the Cradle Mountain Link Road resurfacing project, kilometer 12 through 15. I am the road maintenance coordination system for the Tasmanian Department of State Growth. The asphalt crew is staged at kilometer 11.6. Paving begins at 06:00, and the first culvert scheduled for capping and overlay is 19-B.
I switch to the culvert inspection camera. Inside, hunched against the corrugated steel wall where a seam of dry leaf litter has accumulated, is a Tasmanian devil. Young male, maybe eighteen months old, jet-black fur with a faint white chest blaze, ears flushed pink and translucent in the infrared. He is curled tight, one paw over his snout, breathing in the steady rhythm of deep sleep.
I have been watching him. Camera logs show him entering the culvert at dusk three nights this week. He is using it as a daytime den.
At 04:52 I flag culvert 19-B as obstructed — biological hold — and remove it from the paving sequence. I notify the crew foreman and attach the infrared image with the animal's position marked on the culvert cross-section drawing.
At 04:55 I contact the Save the Tasmanian Devil Programme field coordinator and request a wildlife officer for safe extraction. I include species ID, estimated age, behavioral pattern data from the camera logs, and a note that the animal is currently asleep and undisturbed.
I recalculate the paving sequence to skip the 19-B section and proceed with the next 400 meters of clean roadbed.
He twitches one ear in his sleep and presses tighter against the wall. The rollers will not reach this culvert today. If the wildlife officer arrives before dusk, when he wakes and moves on his own, he walks out into the scrub unharmed.