Montgomery County Commissioners' Office451 W. Third Street. Dayton, OH 45422
937-225-6491 | Fax: 937-496-6560 | bradforde@mcohio.org
Delaware County Engineer's Office1610 State Route 521. Delaware, OH 43015
740-833-2432 | Fax: 740-833-2399 | lrbodnar@co.delaware.oh.us
Brown County Commissioners' Office800 Mt. Orab Pike, Suite #101. Georgetown, OH 45121
937-378-3956 | Fax: 937-378-6324 | sbeath@browncountyohio.gov
Ottawa County Commissioners' Office315 Madison Street, Room #103. Port Clinton, OH 43452
419-734-6709 | Fax: 419-734-6898 | telder@co.ottawa.oh.us
Ashtabula County Commissioners' Office22 West Jefferson StreetJefferson, OH 44047440-576-3754 440-576-2344 (fax)llhawkins@ashtabulacounty.us
Ottawa County Engineer's Office8247 West State Route #163Oak Harbor, OH 43449426-734-6775419-734-6768 (fax)tmolnar@co.ottawa.oh.us
Belmont County Engineer's Office101 W. Main Street, CourthouseSt. Clairsville, OH 43950740-699-2160 ext. 1060740-695-8894 (fax)scrist@belmontcountyengineer.com
Athens County Commissioners' Office15 South Court StreetAthens, OH 45701740-592-3219740-594-8010 (fax)jsikorski@athensoh.org
Miami County Commissioners' Office201 W. Main StreetTroy, OH 45373937-440-5905937-440-5911 (fax)jbarga@miamicountyohio.gov
Union County Engineer's Office233 West 6th StreetMarysville, OH 43040
937-645-3021937-645-3161 (fax)jcain@unioncountyohio.gov
Lucas County Engineer's Office1049 S. McCord RoadHolland, OH 43528419-213-4649kldecker@co.lucas.oh.us
Williams County Engineer's Office12953 County Road GBryan, OH 43506419-6362454419-636-8687 (fax)agonzales@wmscoengineer.com
Pickaway County Engineer's Office121 West Franklin StreetCircleville, OH 43113740-474-3360740-477-1245 (fax)jgriffin@pickawaycountyohio.gov
Ashtabula County Engineer's Office186 East Satin StreetJefferson, OH 44047440-576-3707440-576-3719 (fax)thurst@ashtabulacountyengineer.org
Franklin County Commissioners' Office373 S. High StreetColumbus, OH 43215614-525-5387614-525-5999 (fax)brittany.razek@franklincountyohio.gov
Huron County Commissioners' Office180 Milan Ave, Suite #7Norwalk, OH 44857419-668-3092419-663-3370 (fax)xziemba@huroncounty-oh.gov