NOTN- State transportation officials say that the Back Loop Bridge will be closed to all traffic during the anticipated Glacier Lake outburst flood also known as GLOF, while Brotherhood Bridge will remain open to vehicles but closed to pedestrians for safety.
“Much like last year, we’re going to close the bridge that’s on Back Loop when the gauge level on Mendenhall Lake hits 12 feet, or at 8:30 at night if it’s predicted to go over 12 feet overnight.” Said Department of Transportation Incident Commander Travis Eckhoff, “Folks will remember last year during the flood we had some damage to an approach that totally washed the approach out on the east side of the bridge. And so, just for everyone’s safety, we’re going to go ahead and close that bridge once it hits 12 feet, and we’ll open it back up once our engineers have had a chance to go and inspect the bridge to make sure everything’s okay.”
Engineers will inspect the bridge before reopening it once water levels subside.
Eckhoff urged residents to heed evacuation boundaries, avoid driving through floodwater and sign up for alerts at 511alaska.gov and with the City and Borough of Juneau.
Drone flights will also monitor infrastructure during the event.
“When the basin releases we’ll be putting out a temporary flight restriction for a specific area. So we advise you don’t fly your drones in that area. We’ll be posting that on our socials. There will be drones in the sky, monitoring important infrastructure and HESCO barriers.” Echkoff said.
Portion of the brand new evacuation maps released by CBJ ahead of 2026 flood season
NOTN- Local, tribal, state and federal officials say Juneau is better protected but still at risk as the community braces for another glacial lake outburst flood from Suicide Basin in early August.
City Manager Katie Koester at a media briefing this morning, emphasized to reporters and media outlets that the purpose of the meeting as well as upcoming community events surrounding flood protection work is all about keeping residents informed and prepared ahead of this year’s Glacial Lake Outburst Flood, or GLOF.
She said the key takeaway however, was the need to evacuate during the event.
“We’ve done a lot to prepare for this event and we really appreciate the partnership with the Army Corps of Engineers in installing essentially between the city and the Army Corps $45 million worth of protective infrastructure for this year.” Koester said, “Nevertheless, it’s an unpredictable event, and if we have a breach, it will be a flash flood, and it will be very dangerous.”
The National Weather Service says Suicide Basin water levels are tracking close to 2024. Senior service hydrologist Aaron Jacobs said the basin is about 90 feet below the spillway and is most likely to fill between Aug. 1 and Aug. 9.
Forecasts point to a major flood similar to last year if the basin releases at full volume.
“We’re very close to the levels that we were seeing in 2024 and typically we’ll see about a three foot rise in normal inflow into the basin, and so right now we are about 90 feet below that spillway.” Jacobs said, “Right now that’s about 30 days out before we could see a full basin, and on our monitoring page we do update the conditions weekly, and if we see any other conditions change, we will update it more frequently.”
The City and Borough of Juneau has expanded its evacuation advisory zone to cover just over 1,900 residences, up from about 1,000 last year, based on new evacuation maps that account for blocked roads and responder access. Residents will be guided through a “ready, set, go” framework with Wireless Emergency Alerts, siren-style phone notifications and door hangers in affected neighborhoods.
“In years past, the CBJ and Unified Command have used inundation maps to communicate the risk from from potential flooding and the need to evacuate this year.” Said Emergency Programs Manager Ryan O’Shaughnessy, “We’ve worked really closely with all of our partners to plan for all scenarios, including the potential failure of the HESCO system. Our evacuation map this year, you’ll notice, has a lot more straight lines than an inundation map, and is generally aligned with streets and infrastructure, and the reason for that is we wanted to include areas that may not be directly inundated, but where access or travel, including by first responders, may be compromised. So in other words, if we wouldn’t be able to get to you during a breach scenario, or if you may not be able to get to safety, we are recommending that you evacuate.”
Engineers say roughly $45 million in temporary flood protection including HESCO barriers and a large pump system is now in place along the river through a partnership between the city and the U.S. Army Corps of Engineers.
“We have a very high level of confidence in the HESCO barriers, but this is a dynamic event… we really want to stress for folks to evacuate during this event,” said O’Shaughnessy.
Information on evacuation maps, sandbag events, and alerts is available on the Juneau Flood Ready page at juneau.gov.
A drone image shows widespread flooding in the Mendenhall Valley. (Image courtesy of Rich Ross)
A drone image shows widespread flooding in the Mendenhall Valley. (Image courtesy of Rich Ross/2024)
NOTN- Residents affected by recurring glacial lake outburst floods in Juneau are calling for a faster path toward a long-term flood mitigation solution, arguing that years of annual preparation, uncertainty and recovery are taking a growing toll on the community.
Members of Juneau Flood Solution Advocates gathered recently at Chapel by the Lake to hear updates from scientists studying Suicide Basin as well as mining industry leaders to discuss potential solutions for reducing the threat posed by floods along the Mendenhall River.
The grassroots group formed in 2024 following major flooding in the Mendenhall Valley. Since then, members have worked to support neighbors, coordinate resources and advocate for permanent flood mitigation measures.
“We can’t do this every year,” said Debbie Penrose Fisher, a member of the group, “Whatever it takes to get this expedited on a fast track, and to include local experts, that’s the path to the finish line. Folks are exhausted, and they’re exhausted from the equipment, the noise, the intrusion on their property, to the anxiety of preparing, and we just want a solution.”
Many residents have expressed frustration with the timeline for a permanent solution. The U.S. Army Corps of Engineers has been studying several long-term mitigation options, including a proposed tunnel that would continuously drain water from Suicide Basin to reduce the likelihood of catastrophic releases.
Fisher said some residents would like to see additional expertise brought into the discussion, including mining industry engineers with experience in large-scale tunneling and earth-moving projects.
“The mining industry can do this. They do this all the time,” Fisher said, “The challenge is that, and the city is working really hard to protect us, The Corp is saying six plus years until a long term solution, and even recently are back to 10 to 15 years. We can’t wait that long. We can’t. Our push is to get the mining industry into a conversation with the Corps, so together they can solve this.”
At the same time, city officials say the challenge remains unprecedented and requires balancing safety, environmental concerns, costs and regulatory requirements.
“There is no playbook for how to address glacial lake outburst flooding in an urban area,” Said Deputy City Manager Robert Barr in an email response to News of the North, “For every decision, we and our counterparts at other agencies are having to balance public safety considerations, cost and fiscal considerations, and the regulatory processes that bound any mitigation actions.”
Officials said they understand residents’ concerns and are continuing to gather public input through community meetings and outreach efforts. Many of the same questions being asked by residents are also being asked by city leaders, including what future floods may look like, what would happen if temporary flood barriers fail and how permanent solutions can be implemented as quickly and safely as possible.
The city has invested heavily in temporary flood protection measures, including the installation and reinforcement of HESCO barriers along vulnerable sections of the river. Officials say those efforts helped reduce damage during a larger flood event last year compared with the devastating flooding experienced in 2024.
“Nature always has the potential to humble us,” Barr said. “No human-created solution to a natural phenomenon is going to be perfect.”
He emphasized that current projects are intended to reduce risk while longer-term solutions are evaluated.
The city also noted that the flood threat is unlike any faced by another urban community worldwide.
“This hazard does not occur in any other urban area in the world,” officials said. “Which is why it is so critical for us all to be working together and pulling in the same direction. The way our community has come together to research and learn about the science and potential solutions is impressive. It wasn’t too long ago where we became a community full of knowledge and understanding about things like antigens and antibodies, PCR tests and vaccines. Today, we’ve learned more than we ever thought we would about glacial dynamics, dams, levees, bank armoring, and tunnels. I’m optimistic, with all of the people and agencies tackling this problem, we’ll get to a solution as quickly as possible.”
While no definitive timeline has been established for a permanent solution, city officials said the situation remains fluid and pledged to keep residents informed as new information becomes available.
Upcoming public engagement opportunities include a Community Flood Preparedness Training event scheduled for July 11 at Dimond Park and a July 20 Committee of the Whole meeting, where U.S. Army Corps of Engineers officials are expected to provide updates on ongoing studies and mitigation efforts. Officials encouraged residents with questions or concerns to contact the city at floodresponse@juneau.gov or reach out to their Assembly representatives
Juneau officials said they were “deeply frustrated” after learning that the U.S. Army Corps of Engineers has abruptly backed away from pursuing a preferred long-term fix for the catastrophic glacial outburst floods threatening the Mendenhall Valley.
At a Committee of the Whole meeting Monday night, City and Borough of Juneau leaders detailed new modeling that shows a worst-case glacial lake outburst flood could send an estimated 118,000 cubic feet per second of water down the Mendenhall River, far beyond anything the city has experienced.
“So in August of 2023 when we had our first majorly destructive GLOF, that impacted about 30 homes. Then the next year, in the August of 2024 we wound up with a very different type of event. It wasn’t as much of a riverbank erosion event, it was more of an inundation event. It impacted about 300 homes. So just get a sense of that.” Said Director of engineering Denise Koch, “Then in August of 2025 we had an even more severe GLOF. The HESCO barriers were largely successful in protecting the areas that they were designed to protect. We think without HESCO barriers in 2025, we would have had anywhere from 750 to 1000 homes that would have been impacted. So just to give you a sense of how much more severe each one of these GLOFs is getting.”
Maps presented at the meeting showed that a maximum event could push water beyond the Central valley, crossing Riverside Drive and Mendenhall Loop Road, affecting neighborhoods on both sides of the river.
“We’re talking about a GLOF of this magnitude, if you did not have sufficient mitigation, going beyond what people experienced in 2024 which was terrible in and of itself.” Said Koch, “We’re talking about water also having impacts on the western side of the river, having impacts all the way down, impacting the Mendenhall wastewater treatment plant, having impacts to the airport, a GLOF of this magnitude really gets beyond the Central Valley.”
Scientists from the University of Alaska Southeast, the National Weather Service, the U.S. Forest Service, and Tribal representatives from Tlingit and Haida identified a “lake tap” of Suicide Basin as the preferred enduring solution.
“The lake tap was the most attractive option. It has a very high likelihood of reducing the GLOF risk. It is designed to drain out Suicide Basin at approximately the Basin’s inflow rate.” Said Koch, “There are a lot of assumptions that went into this. A lake tap is essentially a tunnel, there’s a lot of tunnel building capacity in Alaska, It is definitely a technology that is out there and exists.”
The Lake Tap option, the least costly of the long term mitigation efforts discussed, would include construction of a roughly 2.3‑mile tunnel from Suicide Basin to an outfall between Nugget Falls and the face of the Mendenhall Glacier, according to officials.
City Manager Katie Koester said that until recently, CBJ had been told the lake tap was the selected alternative, and that the Army Corps would move quickly toward a technical report on a timeline strongly backed by Sen. Dan Sullivan.
Koester said the city had been in “multiple times a week” coordination with the Corps, but that a couple weeks ago those check ins ceased.
“We were under the impression that it was all going smoothly.” Koester said, “We began inquiring, why haven’t we had a check in a while? Then on Thursday of last week, we had a meeting with Army Corps headquarters where they rescinded all of the direction that they had previously given to pursue a lake tap as the selected alternative. They directed staff to wrap up all efforts on the lake tap as the selected alternative, which included environmental work and feasibility and preliminary engineering.”
Koester described the change as “a really disheartening pivot that left us a little bit speechless,” adding, “I imagine also leaves you speechless.”
“I’m deeply frustrated with this change of course from Army Corps of Engineers. They certainly have been a great partner, really we need them.” Koester said, “We need them to fight the flood fight, to keep this community safe and whole until we can get to an enduring solution.”
According to Koester, Alaska’s delegation, Sen. Murkowski and Sullivan are both committed to an enduring solution, with Sen. Sullivan meeting with the Assistant Secretary of the Army for Civil Works on Wednesday.
Koester urged residents to advocate specifically for the lake tap, and to speak as a unified community.
“I think that it certainly doesn’t help our position to have a divided community on what the best option is, because we are asking for so much so quickly.” Koester said, “I’m confident that we are all advocating for a solution. We need to be aligned, and it doesn’t help when we’re unaligned. But we’re not that unaligned. We all, everyone in this room, everyone who has written their delegation and talked to their delegation, wants an enduring solution and wants it quickly, and I have never heard anyone advocate for anything other than that.”
Officials did emphasize however, that HESCO barrier flood protection work is proceeding.
Koester confirmed the Corps has a signed agreement and continues to cover 100% of Phase Two HESCO costs.
NOTN- Capital City Fire/Rescue responded to another trailer fire in the Switzer Creek area earlier today, and according to a statement released on their social media, extremely cold temperatures have complicated firefighting and emergency response operations.
The post said the severe cold can cause firefighters to fatigue more quickly and can even lead to equipment freezing or malfunctioning. Accessing structures also proves more difficult due to weather conditions.
CCFR reported receiving medical calls during the fire, stretching available resources and requiring crews to triage incidents as the fire response continued.
The statement said, “If it’s not a time-sensitive emergency or they are in a clinic setting, we will have to delay responses and get to them as quickly as we can, we apologize for some of the delays, however that’s the reality of a small town without neighboring departments to help fill it.”
NOTN- A 38 year old man has died following a residential structure fire Saturday night in Juneau.
According to an information release, the Juneau Police Department said officers were called to a report of a structure fire in the 6500 block of Glacier Highway at about 7:30 p.m. on Dec. 20, after a caller reported that a resident might still be inside the home.
Police and Capital City Fire/Rescue responded to the scene. After firefighters extinguished the blaze, they located the body of a 38-year-old man inside the residence.
Sunday, first reported by the Juneau Independent, the deceased was identified as Calvin Olsen. Next of kin have been notified.
The cause of the fire remains under investigation.
In preparation for a possible glacial lake outburst flood (GLOF) this summer, local, tribal, and state agencies have formed a joint communications initiative aimed at improving public safety and emergency response in Juneau.
The City and Borough of Juneau (CBJ), Central Council of the Tlingit & Haida Indian Tribes of Alaska (Tlingit & Haida), and the Alaska Department of Transportation & Public Facilities (DOT&PF) are coordinating with several federal and state partners to streamline flood messaging and improve community readiness.
The collaborative effort stems from increased awareness of the growing risks posed by the Mendenhall Glacier’s Suicide Basin and recent flood events that have affected homes, infrastructure, and traditional lands. With the basin approaching capacity, agencies are taking proactive steps to minimize confusion, provide timely updates, and improve response coordination in the event of a flood.
The new effort, called the Joint Information Center (JIC), was established under the Incident Command System and includes coordination from the National Weather Service, U.S. Coast Guard, Alaska Division of Homeland Security & Emergency Management, and the Alaska Department of Environmental Conservation.
“This partnership will allow us to pool our resources to make sure our residents receive accurate, timely information—especially during high-stress situations like a flood,” said CBJ City Manager Katie Koester.
The JIC will provide consistent emergency alerts, preparedness tips, and flood status updates through email, social media, media briefings, and partner websites. The group will release email updates twice a week and near-daily social media posts to help keep the public informed.
“Community emergencies such as flood events do not recognize jurisdictional boundaries,” said Tlingit & Haida President Chalyee Éesh Richard J. Peterson. “That’s why collaboration between tribal, municipal, state, and federal partners is critical as we prepare our community, pool our resources, knowledge and coordinate response. Together, we are building a framework that prioritizes public safety and ensures that no one is left behind when it matters most.”
Key Ways Residents Can Stay Informed:
Sign up for emergency alerts at bit.ly/CBJAlerts
Check in with the Juneau Flood Ready website at bit.ly/JuneauFloodReady
View road closure leading up to and during an event at 511.Alaska.gov
Stay tuned to the National Weather Service Suicide Basin monitoring page (link) 5 Review the interactive flood inundation maps available at JuneauFlood.com.
