Accession Number:

ADA070615

Title:

National Dam Safety Program. H. B. Norton Dam PA No Name No. 42)(NDI-PA-00385, PennDer No. 24-35), Ohio River Basin, Big Mill Creek, Elk County, Pennsylvania. Phase I Inspection Report,

Descriptive Note:

Corporate Author:

BAKER (MICHAEL) JR INC BEAVER PA

Personal Author(s):

Report Date:

1979-02-01

Pagination or Media Count:

94.0

Abstract:

The H. B. Norton Dam consists of an earthfill embankment approximately 37 feet high and 675 feet long. A 75-foot wide, concrete ogee spillway is located at the right abutment, and a 150-foot wide emergency spillway is located at the left abutment. Seepage control is provided by a steel core wall comprised of 72-inch by 96-inch by 14-inch steel sheets, which are riveted and welded in place. The downstream embankment rises at a slope of 2 horizontal to 1 vertical 2H1V to the crest at elevation 1422.4 feet. The upstream slopes rise at 2.5H1V to elevation 1412 feet and then 2H1V to the 12-foot wide crest. The upstream face is lined with well-placed sandstone riprap, typically 1- to 2-foot square. The ogee type spillway has a crest elevation of 1415 feet, or 7 feet lower than the top of dam. Approximately 225 feet to the left of the ogee spillway is a concrete screen chamber built into the embankment. The intake consists of two pipes, a 16-inch cast-iron pipe with an invert elevation of 1400 feet and a 36-inch cast-iron pipe with an invert at elevation 1386.0 feet.

Subject Categories:

  • Civil Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE