Big Sable Point Lighthouse was constructed of Cream City brick. But it had degraded so much in 35 years that it had to be encased in iron plating. Grosse Point Light, also made of Cream City brick, had to be encased in concrete.
The Big Sable Point Lighthouse was initially constructed from Cream City brick but suffered significant damage within 35 years, prompting the installation of an iron casing to safeguard it. In contrast, Grosse Point Light, also made of Cream City brick, underwent a similar process of deterioration and required concrete for protection.