U.S. Corps of Engineers updates Beaver Island harbor channel measurements, 1989

Also Beaver Island harbor channel survey 1989

Draft — sources verified, prose evolving

Locator map: Beaver Island highlighted within the Beaver Island archipelago

Took place at Beaver IslandLocator plate © OpenStreetMap contributors (ODbL 1.0); depths NOAA; names USGS GNIS. How the plates are drawn.

TypeEvent

Date1989-06-26

WithinBeaver Island

ErasModern era

Event

Date: 1989-06-26
Kind: Observation
Where: Beaver Island
Eras: Modern era
Concepts: maritimesurveyingtransportationinfrastructurecommunication
Within: Beaver Island

Summary

On June 26, 1989, a U.S. Corps of Engineers boat visited Beaver Island to update harbor-channel data. The Beacon reports two sweeps with four depth finders over a 120-foot-wide path.

Evidence limits

The article reports field activity but does not provide the resulting depth dataset, chart, or survey report.

Sources

“Harbor Channel Measured,” Beaver Beacon, July 28, 1989.
Reports a U.S. Corps of Engineers boat using four depth finders for sweeps across a 120-foot path in the harbor channel. The holding institution's portal restricts automated access; the archive holds a copy of this issue and can provide it on request.
data1 · beaver-island-archive · beaver_beacon · 1989-07_Beaver-Beacon
Beaver Beacon, July 1989, held issue PDF, source scan.
Paired held twenty-two-page July issue PDF.
data1 · beaver-island-archive · scans · beaver_beacon · issues · 1989-07_Beaver-Beacon

Added 4 August 2026. Recent changes

Cite this article

Beaver Island Archive, “U.S. Corps of Engineers updates Beaver Island harbor channel measurements, 1989”, https://beaverislandarchive.org/events/beaver-island-harbor-channel-corps-survey-june-26-1989/, accessed [date], citing “Harbor Channel Measured,” Beaver Beacon, July 28, 1989. (and 1 further source listed on the page).

Last revised 2026-08-04. Fill in [date] with the date you read it — this page is static and cannot know that.

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