Here is a Halloween trick: Turning 500 feet into 10 miles. How do you do that? You close a vital bridge between Everett and Mukilteo. It took me 136 steps to walk across the Edgewater Bridge on West Mukilteo Boulevard. It’s under 500 feet from end to end over a deep ravine holding Edgewater Creek. But starting next week, those 136 steps will turn into a 10-mile trek.