Juneau glacial flood bond vote would not reach voters until October 2027, city manager says

Any Juneau vote on borrowing for permanent glacial flood protection would not reach the ballot until October 2027, under a timeline City Manager Katie Koester laid out in a memo for Monday's Assembly Committee of the Whole. At best, she wrote, the U.S. Army Corps of Engineers will not have a rough cost estimate for an emergency water conveyance prototype until spring or summer of 2027.

The timeline follows two straight years of flooding from Suicide Basin. The 2024 glacial lake outburst flood damaged about 290 homes in the Mendenhall Valley. Last year's flood crested higher, but temporary HESCO barriers installed earlier in 2025, costing about $7.8 million and funded 60% areawide and 40% through a local improvement district, blocked most of the flooding.

At 90,000 cubic feet per second, the worst case the Corps considers most likely, flooding would reach 3,001 parcels, including 2,067 homes, with an assessed value of $1.5 billion. The existing HESCO barriers) hold to 63,500 cfs, covering 1,456 total structures assessed at $840 million.

A three-member group of Assembly members Hall, Brooks and Steininger met Sept. 8 to work through funding questions Koester posed in an Aug. 31 memo. The group's conclusions are a starting point for full Assembly discussion, not decisions. "There was consensus that any local match should be borne by the entire borough, and not a service area of projected homes," Koester wrote, citing commercial and public infrastructure used by the whole community and warning that a loss of valley homes would deepen Juneau's housing shortage.

Alaska News previously covered the first phase of barriers, financed through a local improvement district of 466 properties, 117 of which formally objected. The City and Borough of Juneau has already appropriated $400,000 for mitigation planning and mapping, plus $3 million as a local match for a Corps General Investigation study into permanent solutions.

The group held off on creating a flood control district and on setting compensation for riverfront owners whose land hosts barriers, wanting a clearer construction timeline first. Members discussed a temporary easement with an annual lease amount and agreed the barrier footprint is the most effective way to determine compensation, with little appetite for eminent domain.

Koester wrote that the city is pressing for 90/10 cost-share language in the federal water resources bill and asking the Alaska Department of Environmental Conservation whether the project qualifies for the State Revolving Loan Fund. The group asked for debt service schedules across a range of borrowing amounts, and for figures on what flood response costs and what other municipal work it displaces, noting that the need for a dedicated funding source will depend on the October municipal election.