# Concord Point Light

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**Concord Point Light** is a 36-foot (11-metre) [lighthouse](/source/Lighthouse) in [Havre de Grace](/source/Havre_de_Grace,_Maryland), [Maryland](/source/Maryland). It overlooks the point where [Susquehanna River](/source/Susquehanna_River) flows into the [Chesapeake Bay](/source/Chesapeake_Bay), an area of increasing navigational traffic when it was constructed in 1827.[2][3] It is the northernmost lighthouse and the second-oldest tower lighthouse still standing on the bay.

Concord Point Light is currently listed as a private aid to navigation.[4]

## Description

Concord Point Light is among the many Maryland lighthouses built by [John Donahoo](/source/John_Donahoo), who also built its keeper's house across the street.[5][6] The tower is constructed of [Port Deposit](/source/Port_Deposit) [granite](/source/Granite). The walls are 31 inches (790 mm) thick at the base and narrow to 18 inches (460 mm) at the parapet.

The lantern was originally lit with nine [whale oil](/source/Whale_oil) lamps with 16-inch (410-millimetre) [tin](/source/Tin) reflectors. In 1854, a sixth-order [Fresnel lens](/source/Fresnel_lens) was installed. This was later upgraded to a fifth-order Fresnel lens.

The lighthouse was automated in 1920.

## History

Among the lighthouse's keepers from 1827 to the mid-1900s were several members of the O'Neill family. The first O'Neill, [John O'Neill](/source/John_O'Neill_(lighthouse_keeper)) had defended the town of Havre de Grace by manning a cannon battery on Concord Point during the [War of 1812](/source/War_of_1812).

By 1924, local documents describe the lighthouse area as being "seriously blighted"; it apparently remained that way for many years.

The lighthouse was decommissioned by the [Coast Guard](/source/United_States_Coast_Guard) in 1975; soon after that, the lens was stolen. The structure was added to the [National Register of Historic Places](/source/National_Register_of_Historic_Places) in 1976. Extensive restoration work began in 1979. The keeper's house has since been restored and is open to the public as a museum.

In 1983, a fifth-order Fresnel lens borrowed from the Coast Guard was installed in the lantern room.

## See also

- [National Register of Historic Places listings in Harford County, Maryland](/source/National_Register_of_Historic_Places_listings_in_Harford_County,_Maryland)
- [Lighthouses in Maryland](/source/Lighthouses_in_the_United_States#Maryland)
- [Lighthouses in the United States](/source/Lighthouses_in_the_United_States)

## References

1. ["Concord Point Lighthouse"](http://www.lighthousefriends.com/light.asp?ID=411). *Lighthouse Friends*. Retrieved September 19, 2017.

1. Simms, William Q. (April 2001). ["Two Lights on the Hill"](http://www.lhdigest.com/Digest/StoryPage.cfm?StoryKey=1004). Lighthouse Digest. Retrieved 2006-12-28.

1. W. M. Whittington (November 1975). ["National Register of Historic Places Registration: Havre de Grace Lighthouse"](https://apps.mht.maryland.gov/medusa/PDF/NR_PDFs/NR-363.pdf). Maryland Historical Trust. Retrieved 2016-01-01.

## External links

- [Concord Point Lighthouse](http://www.concordpointlighthouse.org/) - official site
- [Lighthouse Friends: Concord Point Light](http://www.lighthousefriends.com/light.asp?ID=411) - photos and description
- [Chesapeake Chapter U.S. Lighthouse Society - description and driving directions](http://www.cheslights.org/heritage/concord.htm)
- [Trip report to Concord Point Light](https://web.archive.org/web/20080704052208/http://perlman.net/lighthouse_trips/Concordpoint.htm)
- [Chesapeake Bay Lighthouse Project - Concord Point Light](http://cblights.com/lights/concordpoint.html)
- , including photo dated 1990, at Maryland Historical Trust

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Adapted from the Wikipedia article [Concord Point Light](https://en.wikipedia.org/wiki/Concord_Point_Light) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Concord_Point_Light?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.