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 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 44 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 Review Draft written by Montgomery Soil Conservation District and published by . This book was released on 1962 with total page 90 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 Supplemental Watershed Work Plan written by Maryland-National Capital Park and Planning Commission and published by . This book was released on 1967 with total page 11 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 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 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 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.
Download or read book National Dam Inspection Program Upper Rock Creek Watershed Site Number 1 Potomac River Basin Lake Bernard Frank Montgomery County Maryland NDI Number MD 0050 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 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dam at Upper Rock Creek Site No. 1, known locally as Lake Bernard Frank, consists of a compacted zoned earth fill embankment approximately 78 feet high and 576 feet long. The grassed slopes rise at 3H:1V upstream and downstream. A 20 foot berm is located on the upstream slope one foot below normal pool at elevation 297.0. Rock riprap extends from elevation 297.0 to elevation 302.0. The principal spillway riser concrete control towers connects to a 42-inch concrete outlet pipe which discharges to an impact basin. These facilities discharge uncontrolled normal flows up to the calculated 100 year frequency flood event 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 36.5 feet above the normal pool elevation and 13.4 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.
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 The Influence of Ground Water on Nitrate Loads of Streams in the Upper Rock Creek Basin Montgomery County Maryland written by Mark T. Duigon and published by . This book was released on 2000 with total page 53 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 Hearings Reports and Prints of the Senate Committee on Public Works written by United States. Congress. Senate. Committee on Public Works and published by . This book was released on 1963 with total page 1498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
