The drill starts and your dog stops with their tail down. The sidewalk is open, but that does not mean your dog can use it comfortably. Construction noise is sudden and hard to control. Turn around or take another route rather than pulling them past the work.
Keep the lead secure and move away from machinery, traffic, and falling debris. Let your dog recover somewhere quiet. If they remain frightened after leaving, skip the longer walk for now. A sudden new fear of ordinary sounds, or panic that spreads to many places, deserves a veterinary check. Pain and sensory changes can alter noise tolerance.
Practice when no work is happening
Teach a simple "this way" turn on calm walks so you can leave before your dog freezes. If a construction site is visible but quiet, you can reward your dog for noticing it from a distance and staying comfortable. Don't wait nearby for a drill to start as a test. Controlled low-volume recordings may help some dogs, but a severe fear plan is best made with your veterinarian and a qualified, reward-based behavior professional.
Watch for signs that the distance is wrong: trembling, stiff posture, refusal of a favorite treat, or attempts to flee. More space is more useful than more repetitions at the same overwhelming spot. If construction blocks your normal toilet route, find another safe place rather than expecting your dog to push through fear each day.
A detour is not a training setback. It may be exactly what lets your dog trust the next walk. For a longer plan away from the real construction site, see the noise-fear guide, take another route while the work is loud
Sources: VCA Animal Hospitals: Fear of Noises in Dogs. Dogs Trust: What to do if your dog is scared of loud noises.