General Structure and Writing Style. The function of a research design is to ensure that the evidence obtained enables you to effectively address the research problem logically and as unambiguously as possible.
ALLEGHENY RIVER HISTORY. Location: A river rising in north-central Pennsylvania and flowing about 523 km (325 mi) northwest into New York then southwest into Pennsylvania again, where it joins the Monongahela River at Pittsburgh to form the Ohio River.
Following is a brief tour of the Ohio River. Most rivers begin as a tiny stream and grow in size as tributaries pour into it. The Ohio River starts out as a big river at the confluence of the Allegheny and Monongahela Rivers at Pittsburgh, Pennsylvania (shown at right). Pittsburgh, as has many Ohio River cities, has done great things to improve their riverfront.