The United States Army Corps of Engineers accepted the City and Borough of Juneau’s (CBJ) request for USACE Public Law 84-99 Advance Measures Assistance to provide technical assistance and temporary flood protection against the increasing future glacial lake outburst floods. USACE and CBJ signed the amended cooperative agreement at the CBJ Special Assembly Committee of the Whole Meeting on October 30.
The scope of the PL 84-99 Advance Measures Assistance to be provided to CBJ includes:
- USACE will provide direct assistance by installing riverbank armoring and temporary flood barriers and other tasks necessary to construct a fortified, complete temporary flood barrier along the Phase 2 alignment for the imminent GLOF threat to the unprotected, populated riverbank areas of the Mendenhall River.
- USACE will provide technical assistance for the repairs, fortification, increasing the temporary flood barrier height, bank armoring and other associated items related to the Phase 1 temporary flood barrier installation to protect against the increasing future GLOF events to continue effectively providing temporary flood protection to the Phase 1 inundation area.
The scope described will be provided at by USACE at 100% Federal cost with no cost to the Public Sponsor (CBJ) and will be completed prior to July 15, 2026.
A recording of the meeting and all presentations and materials from the October 30 meeting are available at here.
For questions, contact floodresponse@juneau.gov.