Dalton Highway Emergency Response 2025
Dalton Highway Emergency Response 2025
Dalton Highway Flooding and Emergency Repairs
On June 14, the Alaska Department of Transportation & Public Facilities (DOT&PF) is actively responding to a significant flooding event impacting the Dalton Highway between Mileposts 305 and 356. This emergency closure was initiated due to a major washout at MP 315 caused by a failed culvert, resulting in an 80-foot-wide, 30-foot-deep breach across the full width of the roadway.
Since the onset of the event, DOT&PF crews and contractors have been working to stabilize the site, mobilize materials and equipment, and prepare for urgent repairs. Additional areas of concern have emerged along the corridor, including water overtopping at MP 318, shoulder damage between MP 321 and 325, and impounded water at MP 351 due to a partially blocked culvert. A new erosion site at MP 402 is also being monitored following rip rap placement to prevent further degradation.
Safety remains our top priority. We recognize the critical importance of the Dalton Highway and we are coordinating closely with partners and agencies to expedite repairs. While current estimates suggest the road will remain closed for at least three more days, we will continue to assess the situation and provide formal updates at 9:00 AM and 7:00 PM daily until the highway is reopened.
Dalton Highway Emerengy Response flicker account with photos and video here: https://www.flickr.com/photos/akdotpf/albums/72177720326882897/
June 17, 2025 7:00 p.m.
🚧 Dalton Highway Update 🚧 Anticipated Reopening: Wednesday, June 18 by NOON
Barring any unanticipated developments, we will reopen the highway by noon, tomorrow, Wednesday, June 18.
Here’s what to expect:
🚧 Traffic control in place between MP 315 and MP 345
🚧 Single-lane sections at multiple locations due to storm-related damage
🚧 Repairs completed in key areas, including Happy Valley
🚧 Delays likely — please plan ahead
UPDATE:
- MP 315
- One lane OPEN
- Crews welding 36” culvert tonight
- Surfacing to follow soon
- MP 321–325
- Water levels LOW with no current impact
- MP 335 (Happy Valley)
- Void under roadway repaired
- Erosion control in place
- No traffic restrictions
- MP 345.5
- Damaged culvert under repair
- One lane OPEN with traffic control
- MP 346.9, 347.1, 350.6
- Shoulder damage noted
- Repairs scheduled later this week
- No traffic impacts
- MP 386.2
- Erosion stabilized
- Site marked COMPLETE
- MP 401–403
- High water levels from wind/runoff
- No erosion at this time
- Crews actively monitoring
Quick Links:
For detailed project info and updates:
👉 https://publicinput.com/n86576
📸 View photos of repairs and current site conditions:
👉 Flickr Album – AKDOT&PF
📲 Get the latest updates at http://511.alaska.gov
Thank you for your patience as we work to restore safe travel.
#ProgressOnTrack #DaltonHighway #RoadClosure #FloodResponse #EmergencyResponse #KeepingAlaskaMoving
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Once open, 24/7 traffic control will be in place from MP 315-345.5.
MP 315:
; placing 36” culvert today
MP 321–325:
MP 335 (Happy Valley):
MP 345.5:
MP 346.9, 347.1, 350.6:
MP 386.2:
Quick Links:
View photos of repairs and current site conditions:
Conditions are improving and progress remains steady — we’re moving in the right direction. Thanks for your continued patience and support! 
Get the latest updates at http://511.alaska.gov--
June 16th Morning Update #DALTON HIGHWAY #CLOSURE 🚨
This emergency closure was initiated Saturday, June 14, due to a major washout at MP 315, where a failed culvert caused an 80-foot-wide, 30-foot-deep breach across the full width of the roadway. The closure from MP 305 to MP 356 remains in effect.
🔗 Quick Links:
For detailed project info and updates:
👉 https://publicinput.com/n86576
📸 View photos of repairs and current site conditions:
👉 https://www.flickr.com/photos/akdotpf/albums/72177720326882897
Here's where things stand this morning:
📍 MP 315 (Main Washout)
- Working to install culvert today
- Significant material stockpiled and being moved to the base of the excavation site
- Establish bridge & crew crossing
📍 MP 345.5
- New area impacted
- Water overtopped roadway & damaged the downstream embankment
- Material resources are underway to prevent further erosion
- Repair timeline is similar to MP 315
📍 MPs 321–325
- Water is rising but no overtopping
- Drainage structures are at full flow
✅ Flood Mitigation Work Complete:
- MPs 264–265, 350, & 403–404 – All stabilized and completed
Monitoring:
- MPs 401–402 – minor erosion
- MP 290 – high water, no immediate risk
- MP 330.9 (Dan Creek) & 334.6 (Happy Valley) – water near structures, no road threat
📢 Message boards remain active in Fox, Scales House, Mitchell, and Richardson
📲 Stay informed at http://511.alaska.gov
#DaltonHighway #RoadClosure #FloodResponse #EmergencyResponse #KeepingAlaskaMoving
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June 15 Evening Updates #DALTON HIGHWAY #CLOSURE
This emergency closure was initiated Saturday, June 14, due to a major washout at MP 315, where a failed culvert caused an 80-foot-wide, 30-foot-deep breach across the full width of the roadway. The closure from MP 305 to MP 356 remains in effect due to flooding, washouts, and erosion. At this time, the closure is expected to remain in effect until #Wednesday, June 18. More detailed updates will be provided following Monday’s operations.
Our primary goal is to safety restore one-lane access as soon as conditions allow, with traffic control measures in place throughout the ongoing repair work.
The next scheduled update will be posted at 9:00 a.m. Monday.
⚠️SITE UPDATES:
Site #1 – MP 315 (Main Washout)
🔸Breach remains ~80’ wide and 30’ deep across the roadway
🔸Joint response underway with Cruz Construction and DOT&PF crews
🔸Equipment on-site including 2 excavators, roller, dozer, and multiple haul trucks
🔸Crews are sloping the embankment to access the base of the cut
🔸Planned repair is installation of two 48” steel culverts with a 36” overflow pipe above
🔸Material being hauled
Site #2 – MP 318
🔸Two 48” culverts are flowing at capacity
🔸No water on the roadway; slight rill erosion noted
🔸Water levels are dropping as ice jams flush
🔸Minor repairs are underway
Site #3 – MP 321–325
🔸Culverts at or above capacity; some erosion observed
🔸No water on the roadway
🔸Warning signage in place; site under continued monitoring
Site #4 – MP 345.5 (New Site)
🔸Damaged culvert with settlement in the southbound lane
🔸Culvert remains functional; no immediate repair required
🔸Permanent repair will take place once emergency access is restored
Site #5 – MP 350
🔸Culverts are thawed and flowing; water levels have receded
🔸Minimal damage observed; monitoring continues
Site #6 – MP 403–404 (Sag River Edge Area)
🔸This historically vulnerable erosion area is under close watch
🔸Material hauling underway to armor the slope
🔸No new damage observed; further assessment scheduled
Site #7 – MP 262–264 (New Site)
🔸Previously frozen culverts are now thawed and flowing
🔸Minor water movement as monitoring continues
Message boards remain active in Fox, Scales House, Mitchell, and Rich
Stay informed through 511.alaska.gov
Thank you for your continued patience!
#DaltonHighway #RoadClosure #FloodResponse #EmergencyResponse #KeepingAlaskaMoving
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June 15, 2025 9:00 a.m.
DALTON HIGHWAY FLOODING – MORNING UPDATE
Water has receded; breach remains ~80’ wide and 30’ deep across full roadway.Crews are stockpiling material and mobilizing additional equipment.Cruz Construction supporting repairs using equipment staged at Sag River.Closure expected to last at least 3 more days.
Water was nearly covering both lanes yesterday.Inspection scheduled this morning. Minor shoulder damage reported previously. Inspection scheduled for today.Impounded water present due to partially plugged culvert.Deadhorse crew responding today.Active erosion addressed yesterday.Adjacent to last year’s erosion area near Sag River.Site will be reassessed today for ongoing risks.
Message boards active in Fox, at Scales House, and Mitchell.June 14, 2025