Testing of Novel Technologies for Monitoring Aufeis under Bridges in Alaska

Cherry, Jessica; University of Alaska Fairbanks. Institute of Northern Engineering

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ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.

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Testing of Novel Technologies for Monitoring Aufeis under Bridges in Alaska

2021-08-26
By Cherry, Jessica

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Testing of Novel Technologies for Monitoring Aufeis under Bridges in Alaska

English

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Details:

Creators:

Cherry, Jessica
Corporate Creators:

University of Alaska Fairbanks. Institute of Northern Engineering
Corporate Contributors:

Alaska. Department of Transportation and Public Facilities. Research and Technology Transfer ; United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology ; United States. Department of Transportation. Federal Highway Administration

Alaska. Department of Transportation and Public Facilities. Research and Technology Transfer ; United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology ; United States. Department of Transportation. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Aufeis Bridges Cold Region Hydrology Frigid Regions Groundwater Hydrology Ice Effects On Bridges Icing Permafrost
Publication/ Report Number:

FHWA-AK-RD-4000(182) ; INE 21.01

FHWA-AK-RD-4000(182) ; INE 21.01 Less -
Resource Type:

Tech Report
Geographical Coverage:

Alaska ; United States

Alaska ; United States Less -
Corporate Publisher:

Alaska. Department of Transportation and Public Facilities. Research and Technology Transfer
Abstract:

This study evaluated multiple technologies for imaging aufeis features in the vicinity of bridge structures in Alaska. Aufeis is a layered ice feature formed from the freezing of successive flows of water over the top of previously formed ice. For this study, imagery was collected at twenty-one different bridge sites. An uncrewed aerial system (UAS), a crewed aircraft and camera, a handheld field camera, and a fixed field camera were all tested. No single technology was appropriate for all sites, but in general, the UAS was better for small creeks and the crewed aircraft was better for larger rivers. The crewed aircraft was more efficient at collecting a large number of sites in one day, while the UAS was better at seeing under the bridges (a data gap problem identified in the crewed aircraft dataset). The crewed aircraft had a larger operating range in terms of temperature and wind, while the UAS was limited in cold temperatures and high winds. The handheld field camera could capture significant detail, but with distorted optics. The fixed field camera was susceptible to moisture buildup that obscured the lens on many days. More research is recommended that investigates connections between groundwater, aufeis, and changes in sediment and scouring in the vicinity of bridges.
Format:

PDF
Funding:

ADN# 2598036, 2518036
Collection(s):

University Transportation Centers
Main Document Checksum:

[+]

urn:sha-512:3a0732b61fb289c14642a70e5d6d052f06c1ac88f2fd16bc41de7206433c08fc8805f80fcecc30d7e1682ec098984763eab7bd024848f8de3ae5ac11f1cb2c7a
Download URL:

https://rosap.ntl.bts.gov/view/dot/68924/dot_68924_DS1.pdf
File Type:

[PDF-295.29 MB]