http://www.ohm-advisors.com. An APWA award-winning project, reconstructing Walton Boulevard, in the City of Auburn Hills, was no easy task. Start with 1.5 miles of road, an old bridge over a major freeway, and three government owners. Then, throw in high priority federal and state funding deadlines and a five month schedule to complete. No problem. If you're OHM, and you're committed to Advancing Communities!