Ditch relief culverts.
Contributors: Oregon. Forest Practices Section.; Associated Oregon Industries.; Association of Oregon Loggers.; Oregon Forest Protective Association.
Series: Forest practices notes -- no. 5.
Publisher: Forest Practices Section, Oregon Dept. of Forestry
Published: 1982
Place of publication: Salem, Or
Language: eng
Subjects: Culverts -- Oregon -- Design and construction.; Forest roads -- Oregon -- Design and construction.
Notes: Title from caption.

"June 1982."

"Published in cooperation with AOI, AOL, and OFPA."