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Title: Investigation of the Roosevelt Road Transmitter Site, Fort Richardson, Alaska, using ground penetrating radar

Abstract

The Roosevelt Road Transmitter Site is the location of a decommissioned bunker on Fort Richardson, near Anchorage, Alaska. The site was used from World War II to the Korean War as part of an Alaskan communications network. The bunker and support buildings were vandalized following its decommissioning in the mid-1960s, resulting in PCB contamination of the bunker and soils around the above-ground transmitter annex. CRREL conducted a ground-penetrating radar (GPR) investigation of the site in June 1996, at the request of the Directorate of Public Works on Fort Richardson. Nine transect lines were established, each being profiled with 100- and 400-MHz antennas. Both antennas systems defined the extent of the bunker and identified the presence of buried utilities. The 100-MHz antenna provided large-scale resolution of the bunker, limits of site excavation, and large stratigraphic horizons in the undisturbed sediments. The 400-MHz antenna provided finer resolution that allowed identification of steel reinforcement in the bunker ceiling, utility walls and floor, and the walls of the inner and outer bunker. High amplitude resonance and hyperbolas in the record characterize the response from the Transmitter Annex foundation, buried pipes, and utilities. The GPR survey shows its utility for detecting the extent of abandonedmore » underground structures and identifying the extent of original ground excavations.« less

Authors:
; ;
Publication Date:
Research Org.:
Cold Regions Research and Engineering Lab., Hanover, NH (United States)
OSTI Identifier:
678878
Report Number(s):
AD-A-364131/XAB; CRREL-99-4
TRN: 92290200
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Mar 1999
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; ALASKA; MILITARY FACILITIES; SITE CHARACTERIZATION; UNDERGROUND FACILITIES; DETECTION; RADAR; PERFORMANCE; SOILS; POLYCHLORINATED BIPHENYLS; MAPPING

Citation Formats

Hunter, L.E., Delaney, A.J., and Lawson, D.E. Investigation of the Roosevelt Road Transmitter Site, Fort Richardson, Alaska, using ground penetrating radar. United States: N. p., 1999. Web.
Hunter, L.E., Delaney, A.J., & Lawson, D.E. Investigation of the Roosevelt Road Transmitter Site, Fort Richardson, Alaska, using ground penetrating radar. United States.
Hunter, L.E., Delaney, A.J., and Lawson, D.E. Mon . "Investigation of the Roosevelt Road Transmitter Site, Fort Richardson, Alaska, using ground penetrating radar". United States. doi:.
@article{osti_678878,
title = {Investigation of the Roosevelt Road Transmitter Site, Fort Richardson, Alaska, using ground penetrating radar},
author = {Hunter, L.E. and Delaney, A.J. and Lawson, D.E.},
abstractNote = {The Roosevelt Road Transmitter Site is the location of a decommissioned bunker on Fort Richardson, near Anchorage, Alaska. The site was used from World War II to the Korean War as part of an Alaskan communications network. The bunker and support buildings were vandalized following its decommissioning in the mid-1960s, resulting in PCB contamination of the bunker and soils around the above-ground transmitter annex. CRREL conducted a ground-penetrating radar (GPR) investigation of the site in June 1996, at the request of the Directorate of Public Works on Fort Richardson. Nine transect lines were established, each being profiled with 100- and 400-MHz antennas. Both antennas systems defined the extent of the bunker and identified the presence of buried utilities. The 100-MHz antenna provided large-scale resolution of the bunker, limits of site excavation, and large stratigraphic horizons in the undisturbed sediments. The 400-MHz antenna provided finer resolution that allowed identification of steel reinforcement in the bunker ceiling, utility walls and floor, and the walls of the inner and outer bunker. High amplitude resonance and hyperbolas in the record characterize the response from the Transmitter Annex foundation, buried pipes, and utilities. The GPR survey shows its utility for detecting the extent of abandoned underground structures and identifying the extent of original ground excavations.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Mar 01 00:00:00 EST 1999},
month = {Mon Mar 01 00:00:00 EST 1999}
}

Technical Report:
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