Every Lighthouse

Every standing light in America — and what it takes to visit one.

Thirty-First Street Inner Jetty Light

Chicago, IL · Active aid to navigation

No access information published

Those records publish navigation and historic data only — no visitor-access information — so none is shown. Access, if any, is set by the owner or operator.

Access source: Federal records checked: the U.S. Coast Guard AtoN / Light List record for this aid · Checked 2026-11-12

Owner / operator: U.S. Coast Guard (active aid to navigation)

The light

LocationChicago, IL (Cook County)
StatusActive aid to navigation (USCG AtoN file)
Light List number19934
Light characteristicFl Y 2.5s
StructureNW on cylindrical tower.
Position41.84011, -87.60722 (federal record; not for navigation)
Coast Guard remarkMaintained from Apr. 15 to Dec. 1.

Sources

USCG AtoN file via NOAA MarineCadastre (USCG NAVCEN data).

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