Rockland Breakwater
National Register of Historic Places

Rockland Breakwater

Rockland, Knox County, Maine
Listed
April 10, 2003
Type
Structure
Period
Civil War
Ref No.
03000203

About this property

The Rockland Breakwater is a breakwater sheltering the harbor of Rockland, Maine. More than 4,000 feet (1,200 m) long, it was built in the 1890s by the United States Army Corps of Engineers out of locally quarried granite to improve the harbor's ability to shelter ships from coastal storms. It was listed on the National Register of Historic Places in 2003. The city of Rockland is located on the west side of Penobscot Bay in the Mid Coast region of Maine. Its harbor, long regarded as one of the finest east of Portland, was frequently used in the 19th century as a safe harbor during bad weather. It was less than ideally suited to this task, because its large east-facing opening would still subject ships at anchor to storms with winds from the northeast. Major storms in the 1850s highlighted the need for improved harbor protection, but federal appropriations for a project were not approved until 1880. Between 1880 and 1900 the United States Army Corps of Engineers, under a series of Congressional appropriations, built the breakwater. The lighthouse standing at its end was added in 1902. The breakwater extends south from Jameson Point (marking the northern point of the harbor mouth), and has a total length of 4,364 feet (1,330 m). It is built out of locally quarried granite, and has a roughly trapezoidal cross-section, its seaward face sloping more gradually than the harbor side, in order to better take the battering of sea waves. The top of the breakwater is about 43 feet (13 m) wide, while its underwater base is an estimated 175 feet (53 m) wide. The visible top is formed out of coursed granite blocks. About 700,000 tons of rock were used in its construction. The breakwater is believed to be unique among Army Corps 19th-century breakwaters in its exclusive use of local materials. National Register of Historic Places listings in Knox County, Maine

Location

Rockland, Knox County, Maine
44.11533, -69.08202

Categories

MARITIME HISTORYTRANSPORTATIONCOMMERCEENGINEERING
National Register nomination ›
Sources

Property data from the National Register of Historic Places, National Park Service (public domain).

Description adapted from Wikipedia under the Creative Commons Attribution-ShareAlike 4.0 International License.

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Nearby Historic Sites

Rockland Breakwater Lighthouse
Industrial
0.8 mi
AMERICAN EAGLE (schooner)
Industrial
1.1 mi
Tillson Farm Barn
Industrial
1.1 mi
J. & E. RIGGIN (schooner)
Industrial
1.1 mi
Crockett, Knott, House
Industrial
1.2 mi

Questions about this property

When was Rockland Breakwater listed on the National Register?

Rockland Breakwater was listed on the National Register of Historic Places on April 10, 2003.

What type of historic resource is Rockland Breakwater?

Rockland Breakwater is classified as a structure in the National Register of Historic Places.

What is the period of significance for Rockland Breakwater?

The period of significance for Rockland Breakwater is recorded as the civil_war era.

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