Spring Point Ledge Light In 1891 after so many vessels ran aground because of the dangerous ledge that marks the western side of the shipping channel into Portland Harbor, a group of shipping companies convinced the government to build a lighthouse. The funds were not available until 1896 when construction began. There were set backs caused by storms and disputes about materials, so the construction was not completed until 1897. This lighthouse is of the "sparkplug"style, built on a cylindrical cast iron caisson, but unlike most towers of this type it is built from brick and not cast iron. The lighthouse has four levels, a keeper's office,a watchroom, and two levels for living quarters. A fog bell hung on the side and a fifth order Fresnel lens was installed. Automated in 1934, and in 1951 the lighthouse was connected with the mainland by a 900 foot breakwater.