# Indiana Harbor East Breakwater Light

- **Country:** United States
- **Region:** Illinois
- **Coordinates:** 41.680833, -87.441111
- **Location Text:** Hammond
- **Year Automated:** Unknown
- **Year First Lit:** 1920 (Former) 1935 (Current)
- **Year Deactivated:** Active
- **Summary Written At:** 2026-10-18 01:06:41

The Indiana Harbor East Breakwater Light stands on the east side of the Indiana Harbor and Ship Canal where it meets Lake Michigan, at Hammond in the United States. Positioned at 41°40′51″ N, 87°26′28″ W, the tower marks the end of the harbor’s breakwater and assists vessels entering the lake.  

The tower is a square, steel structure whose lantern sits at a focal height of 78 ft. The tower has a square cross‑section and is built of steel. Its light is produced by a fourth‑order Fresnel lens and displays an isophase green signal, equal periods of light and darkness over a six‑second cycle. Mariners can see the green beam for a range of 14 mi across the lake.  

A predecessor lighthouse was erected on the breakwater in 1920 after the United States Army Corps of Engineers took over responsibility for the harbor in 1914. The present steel tower replaced the earlier aid and was first lit in 1935. The breakwater itself was constructed during 1901–1902 as part of the original harbor development.  

The light remains active as an aid to navigation, continuing to guide vessels on Lake Michigan. Both the tower and its light are still operational.

**Source:** https://en.wikipedia.org/wiki/Indiana_Harbor_East_Breakwater_Light (Wikipedia, CC BY-SA)