A-2 crosses into Van Buren County about a mile (1.6 km) later and continues winding north-northeasterly.

Blue Star Highway passes the Palisades Nuclear Generating Station near Covert before coming into the southern edge of South Haven.

The county road intersects BL I-196 at Le Grange Street due south of downtown and M-43 a block later.

In this area, Blue Star Highway is bounded by a mix of mostly commercial and some residential properties.

Blue Star Highway here follows 68th Street in the county road grid through the community of Ganges.

The county road crosses over the freeway again and out to farmlands before turning north along 58th Street, well inland of I-196/US 31.

South Washington Street continues northward into downtown without the county highway designation.

[14] US 31 between the Benton Harbor and Holland areas was slated to become an Interstate Highway when that system debuted in the late 1950s.

[19] The owners of a motel in Saugatuck, Mr. and Mrs. Howard "Gene" Temple, received a large number of cancellations because travelers could not find their business.

These meetings resulted in a test program for the 1970 state highway map that marked Blue Star Highway as A-2; the Allegan County Road Commission spent $2,000 (equivalent to $12,100 in 2023[20]) to erect about 50 markers along the road in their county.