davenport651
The intersection just north-east of this note point is signed as Waverly Rd and Eaton Rapids Road. Dimondale/Bailey/M-99 intersections have no label for M-99, but the Eaton County plat records show Hammond Farms (on the southwest corner of Waverly/M-99) as being on "North Michigan Road": https://bsaonline.com/SiteSearch/SiteSearchDetails?uid=418&ReferenceKey=080-013-200-056-00

It appears Eaton Rapids Road begins just south of I-96 at the Lansing City limits and extends only to the county line at Waverly Rd. OSM appears to be correct.