Machine driving of wooden and steel highway guardrail posts under adverse conditions
By: by Charles J. Gatchell and Edwin L. Lucas.
Contributors: Lucas, Edwin L., joint author.
Series: U.S.D.A. Forest Service research paper NE-212
Publisher: Northeastern Forest Experiment Station
Published: 1971
Place of publication: Upper Darby, Pa
Language: eng
Number of pages: 18
Subjects: Roads -- Guard fences.; Pile drivers.
Notes: Cover title.