Photograph of Chesapeake and Delaware Canal — Photograph by Smallbones, CC0 1.0. Via Wikimedia Commons.

Eastern Lock of the Chesapeake and Delaware Canal

Listed on the National Register of Historic Places in 1975.

From the record

“The Chesapeake & Delaware Canal is a 14-mile (22.5 km)-long, 450-foot (137.2 m)-wide and 35-foot (10.7 m)-deep ship canal that connects the Delaware River with the Chesapeake Bay in the states of Delaware and Maryland in the United States.”
Wikipedia article Chesapeake & Delaware Canal, CC BY-SA 4.0.

One of 411 National Register listings published here for New Castle County · listed in 1975 · category: Structure.

Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service

The listing

What is counted as historic. The nomination lists 1 structure as contributing to the listing.
Address. Battery Park, Delaware City, 19706
When was it listed? April 1975
Category. structure
Census division. Red Lion
National Register reference number. 75000543 - the number the National Park Service assigned this property when it was listed, and the key its nomination file is catalogued under at the National Archives.

Fires near this property

6 since 1992

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 6 fires within 5 miles of Eastern Lock of the Chesapeake and Delaware Canal between 1992 and 2015, burning about 179 acres in total. None started naturally. 1 was recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.

Reported cause	Fires
Missing data/not specified/undetermined	4
Arson/incendiarism	1
Equipment and vehicle use	1

The most recent of them, most recent first, with the day each was reported and the service that recorded it.

Date	Cause	Size	Reported by	Name on the report
8 May 1995	Missing data/not specified/undetermined	90 acres	Supawna Meadows National Wildlife Refuge	MESSYONUS
21 May 1992	Arson/incendiarism	under an acre	New Jersey Forest Fire Service	not named
12 April 2015	Missing data/not specified/undetermined	8.8 acres	New Jersey Forest Fire Service	not named
25 March 1995	Missing data/not specified/undetermined	60 acres	Supawna Meadows National Wildlife Refuge	MILLCREEK2
24 March 1995	Missing data/not specified/undetermined	20 acres	Supawna Meadows National Wildlife Refuge	MILLCREEK1
16 November 2015	Equipment and vehicle use	under an acre	New Jersey Forest Fire Service	not named

Every fire recorded in New Castle County

Mines and quarries near this property

5 within 5 miles

Regional context, not property-specific evidence. The federal mineral resources record lists 5 workings within 5 miles of Eastern Lock of the Chesapeake and Delaware Canal: 4 past producers, 1 plant. 1 still produces. What was taken out: Sand and Gravel, Construction, Clay, Sulfur. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Site	Commodity	Status	Recorded
Delaware Plant Getty	Sulfur	Plant
Delaware Brick Co. Pit	Clay	Past Producer
Delaware Brick Co. Pit and Mill	Clay	Past Producer	Sedimentary
Woodlawn Sand & Gravel Pit	Sand and Gravel, Construction	Past Producer
Woodlawn Sand & Gravel Pit & Mill	Sand and Gravel, Construction	Past Producer	Sedimentary

Every working recorded in New Castle County

Map coverage status

No historic map-sheet match is published for this property yet. That does not mean no map exists. This record needs a coordinate-quality review before it can be joined to a sheet boundary. Browse the county's mapped places while that work is pending.

Listed places nearby

6 within 8 miles

Other National Register properties close enough to walk or drive between, ordered by distance from this one. Both positions come from the same geocoding pass that matched these properties to their map sheets.

Property	Distance	Listed
Delaware City Historic District	0.3 miles	1983
Fort Dupont Historic District	0.6 miles	1999
Chelsea	0.6 miles	1982
Fort Delaware on Pea Patch Island	1.1 miles	1971
Fairview	1.8 miles	1982
Windsor	2.6 miles	1992

Sources for this property

National Archives record	The nomination case file for reference 75000543 in Record Group 79.
Wikipedia article	Community-written account of this property, licensed CC BY-SA.
New Castle County	All 411 listed properties in this county.

Provenance

Listing record. National Park Service National Register of Historic Places, listed-properties dataset, current to 2026-05-22.
Map join. Address geocoded through the United States Census geocoder, then tested against the published boundary of every sheet in the USGS Historical Topographic Map Collection.
How this page is made. Listing fields come from federal records; map-sheet coverage is a labelled coordinate-to-boundary calculation, not a source-field claim.
Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.
Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.