A screen shot of the North Slope Decision Support System (NSDSS), an innovative online tool developed by AUTC's partners at the Water and Environmental Research Center at UAF. This project allows the public and professionals alike to access North Slope hydrology data to reduce costs and impacts of winter ice roads. (Photo Courtesy: WERC)
A team of German aerospace engineers led by Johannes Eissing test fly an RC Airship prototype at the 2013 Alaska Airships Summit. (Photo: AUTC news)
AUTC Director Billy Connor fields questions from Chinese transportation experts at the 2013 International Symposium of Climatic Effects on Pavement and Geotechnical Infrastructure (ISCEPGI) at UAF. (Photo: AUTC News)
The James Dalton Highway--Alaska's lone surface connection to the North Slope. Plagued by permafrost, erosion, and some of the harshest conditions on the planet, this vital infrastructure is the focus of many current and past AUTC projects. (Photo: R. Cadigan, Alaska DOT&PF)
A UAF research team installs a remote weather station; stations like these provide invaluable climate and precipitation data used by state transportation engineers. (Photo Courtesy: WERC)
AUTC researcher and UAF professor of geological engineering Margaret Darrow, briefing kids from a local school before a tour of the U.S. Army Cold Regions Research and Engineering Laboratory's (CRREL) permafrost tunnel. (Photo: AUTC news)
AUTC researchers and State bridge personnel install a state-of-the-art remote structural health monitoring system on Alaska's Chulitna River Bridge. (Photo Courtesy: L. Hulsey)
AUTC researchers and State maintenance crews apply experimental permafrost mitigation materials on an unstable slope at the Dalton Highway 9-mile Hill. (Photo: X. Zhang)
Frozen Debris Lobes 2014-1B
Frozen debris lobes (FDLs) are slow-moving landslides in permafrost, many of which are present along the Dalton Highway in the Brooks Range. While twenty-three FDLs are within a mile uphill of the highway, the closest, FDL-A at MP219, is less than 190 ft from the highway shoulder as of August 2013. In 2010, FDL-A was 65-ft high and 560-ft wide at the toe. Using some estimated values for cross-sectional shape, unit weight of the soil, and the historic rate of movement, in 2010 FDL-A was moving about 60 tons of debris towards the highway every day. Measurements indicate that FDL-A started moving faster in recent years, and is beginning to demonstrate characteristics of further instability. A few years ago, similar signs of instability were present in FDL-D, another frozen debris lobe three miles to the south. In essence, FDL-D “detached” from its catchment area and moved 380 ft in three years (between 2010 and 2013). Should FDL-A follow a similar trend, it could cover the distance to the highway in about a year, and be almost half way to the Trans Alaska Pipeline System (TAPS) in three years. While a Phase 1 study provided a preliminary characterization of the internal structure of FDL-A, additional study is needed to define further the movement mechanism/s of the FDL and to characterize better its internal makeup. This information is necessary to identify the best mitigation technique/s for implementation.
visit: fdlalaska.org for additional information.
Picture by M. Darrow
Dust Control Field Guide for Gravel Driving Surfaces
Specialized Testing of Asphalt Cements from Various ADOT&PF Paving Projects
A Platform for Proactive, Risk-Based Slope Asset Management, Phase II
AUTC 2014 Student of the Year: Donovan Camp
Congratulations, Donovan Camp, for being selected by the Executive Board as the
Alaska University Transportation Center Student of the Year. Donovan Camp is is a senior
undergrad studying Civil and Environmental Engineering at the University of Alaska Fairbanks.
He will be graduating with a Bachelors of Science in the spring of 2015 and is currently
exploring postgraduate education opportunities.
Reducing Fugitive Dust from Roadways in Alaska
On Wednesday, November 5th, AUTC Director Billy Connor will be presenting on “Reducing Fugitive Dust from Roadways in Alaska.” The presentation will be held in the Schaible Auditorium at the University of Alaska Fairbanks at 5:30pm. For more information call the Undergraduate Research & Scholarly Activity Office at (907) 450-8772.
Structural Health Monitoring & Condition Assessment of Chulitna River Bridge Phase I
Save The Date: International Symposium on Winter Road Maintenance, Aug. 19-22, Harbin China
INE’s Center for Environmentally Sustainable Transportation in Cold Climates (CESTICC) is excited to announce the 2nd International Symposium on Winter Road Maintenance – August 19-22, 2014, Harbin City, P. R. China. (more…)