Download or read book Watershed Work Plan Upper Rock Creek Watershed Montgomery County Maryland written by Montgomery County (Md.) and published by . This book was released on 1962 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Upper Rock Creek Watershed Maryland Hearing 88 1 May 28 1963 written by United States. Congress. Senate. Committee on Public Works and published by . This book was released on 1963 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rock Creek Watershed Conservation Study written by CH2M HILL (Firm) and published by . This book was released on 1979 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rock Creek Watershed Habitat Survey written by Robert Shosteck and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Upper Rock Creek Watershed Maryland written by United States. Congress. Senate. Committee on Public Works. Subcommittee on Flood Control: Rivers and Harbors and published by . This book was released on 1963 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rock Creek a Test of Intentions Winter Public Meeting Gaithersburg Md February 16 1967 Cosponsored by the Rock Creek Watershed Association written by and published by . This book was released on 1967 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Upper Rock Creek Watershed Maryland written by United States. Congress. Senate. Committee on Public Works and published by . This book was released on 1963 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Upper Rock Creek Watershed Maryland written by United States. Congress. Senate. Committee on Public Works. Subcommittee on Flood Control: Rivers and Harbors and published by . This book was released on 1963 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Upper Rock Creek Watershed Md written by and published by . This book was released on 1963 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Special Report to the Nation written by and published by . This book was released on 1969 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rock Creek Watershed Summit Sub watershed Power County written by and published by . This book was released on 1982 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Upper Rock Creek Watershed Maryland written by United States. Congress. Senate. Committee on Public Works. Subcommittee on Flood Control: Rivers and Harbors and published by . This book was released on 1963 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Master Plan of the Upper Rock Creek Watershed in Montgomery County Maryland written by Maryland-National Capital Park and Planning Commission and published by . This book was released on 1961 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rock Creek Watershed written by and published by . This book was released on 1975 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rock Creek Watershed written by M. Cramer and published by . This book was released on 1984 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Library of Congress Subject Headings written by Library of Congress and published by . This book was released on 2007 with total page 1810 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Dam Inspection Program Upper Rock Creek Watershed Site Number 5 Lake Needwood NDI Number MD 00046 Potomac River Basin Rock Creek Montgomery County Maryland Phase I Inspection Report written by CORPS OF ENGINEERS BALTIMORE MD BALTIMORE DISTRICT. and published by . This book was released on 1979 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam at Upper Rock Creek Site No. 5, known locally as Lake Needwood, consists of a compacted zoned earth fill embankment approximately 65 feet high and 426 feet long. The grassed slopes rise at 3H:1V upstream and downstream. A 12 foot berm is located on the upstream slope one foot below normal pool at elevation 322.5. Rock riprap extends from this level to elevation of 327.5. The principal spillway riser concrete control towers connects to a 42-inch concrete outlet pipe which discharges to an excavated stilling basin. These facilities discharge uncontrolled normal and cold water releases through three gated inlets. Flood flows exceeding the calculated 100 year flood levels may be discharged through a trapezoidal grassed emergency spillway located beyond the left abutment. The emergency spillway crest is 27.5 feet above the normal pool elevation and 12.6 feet below the top of dam elevation. Based on the evaluation of the conditions as they existed on the date of the inspection and as revealed by visual observations, the condition of the dam is assessed to be good. The spillway capacity is classified as adequate because it will pass the recommended spillway design flood of full Probable Maximum Flood according to the recommended criteria.
