The Washington Harbor Lines Amendment, also known as Amendment to Article XV, was on the November 4, 1924 ballot in Washington as a legislatively-referred constitutional amendment, where it was defeated. The measure would have provided for the relocation of harbor lines without the state relinquishing control of waterways. The measure would have amended Section 1 of Article XV of the Washington State Constitution.
| Washington Amendment to Article XV (1924)|
|Yes|| 99,694|| 39.47%|
Election results via: Washington Secretary of State
Text of measure
The language appeared on the ballot as:
|| An Amendment of section 1 of article XV of the State Constitution relating to harbor lines and areas, by providing that harbor lines may be relocated or reestablished and that none of the area lying between any harbor line and the line of ordinary high water and within not more than two thousand (2,000) feet of any harbor line shall be sold or the right to the control thereof relinquished by the state.