The island that would eventually become known
as Mamajuda appeared in this 1796 French map of the Detroit River, where
it was listed as “Jones” Island. The title “island” is actually
somewhat aggrandizing, as throughout modern history virtually all of its
25 acres have been located beneath the surface of the river with only
varying amounts of low-lying wetlands protruding visibly above the
surface.
1876 map showing the location of Jones Island
The island eventually became known as Mammy
Judy after an Indian woman by the same name who regularly camped on
the island during the fishing season prior to 1807. Because the shallow
island was located smack in the middle of the main shipping
channel between Grosse Isle and Fighting Island, the Mammy Judy
lighthouse was established on the southeast side of the island in 1849.
Erected atop a grid-work of vertical piles driven into the river bed,
the station was outfitted with 4 Lewis patent lamps with 14” diameter
reflectors in a birdcage style lantern 35 feet above the water. This
photograph shows the Mammy Judy lighthouse as it appeared circa 1852.
The original 1849 Mamajuda lighthouse
The cropped section of an 1876 chart of the
Detroit River below shows the location of the Mammy Judy light station and
graphically shows the danger largely submerged island would have
represented to mariners making their way along the river, and the reason
it was considered necessary to establish a lighthouse to mark the
island's position in 1849.
1876 chart of the Detroit River showing the location of the Mamajuda lighthouse
With the exception of upgrading the Lewis
lamps to a Sixth Order Fresnel lens in 1855, little maintenance appears
to heave been undertaken at Mamajuda, and after only fifteen years it
was evident that the pilings on which the lighthouse was
erected were rotting badly and the lighthouse itself had deteriorated
to the point that it was considered barely inhabitable. As such, the old
lighthouse and foundation were demolished in 1866 and the new structure
shown here erected to replace it.
The 1866 Mamajuda lighthouse
If the 1866 Mamajuda lighthouse appears
familiar, it could well be because it was built as a twin to the Mission
Point lighthouse which was established at the north end of the Mission
Peninsula north of Traverse City four years later. This photo shows the
Mission Point lighthouse as it appeared circa 1880.
The Mission Point light station was built to the same plan as Mamajuda
In order to better mark the down-bound channel
from Grassy Island to Mamajuda, in 1892 the Lighthouse Board requested a
Congressional appropriation of $1,500 to erect a front range light
upstream of the island to range with the existing Mamajuda
lighthouse. Congress approved the expenditure the following year, and
the new timber structure in the river was completed and ready for
lighting on July 16, 1894. This 1902 photo shows this structure and the
elevated walkway which provided access for the keeper from his dwelling
beneath the rear light.
The Mamajuda Front Range Light established in 1894
As a result of constant erosion from the wake
of passing vessels, between 1900 and 1904 a number of changes were
undertaken to improve the conditions on Mamajuda. Thousands of tons of
rip-rap stone were transported to the island to elevate it
further above the water. The old rear range lighthouse was transported
across the river to serve as a dwelling for the keeper of the Grosse
Isle light and a new rear range structure with a circular tower was
erected on the improved ground on Mamajuda. This postcard from 1909
shows the structure as it was rebuilt in 1904 and gives a good sense of
the improved living conditions which resulted.
The Mamajuda lighthouse as rebuilt in 1904
Over the years, the Detroit River was continually dredged to make a safe channel for increasingly larger vessels, and Mamajuda island became washed away, largely as a result of erosion by the bow waves of these huge vessels. Today, Mamajuda Island is largely covered by water, with only small portions of the island appearing above the water's surface during periods of lower water, and the resulting shoal area is now marked by the Mamajuda Shoal buoy.
This crop from Google Earth shows that Mamajuda Island is now virtually submerged. However, the pilings which supported the old lighthouse can readily be seen beneath the water. |