Forecasting is the process of making predictions of the future based on past and present data and analysis of trends. A commonplace example might be estimation of some variable of interest at some specified future date.Prediction is a similar, but more general term.ualitative forecasting techniques are subjective, based on the opinion and judgment of consumers, experts; they are appropriate when past data are not available. They are usually applied to intermediate-or long-range decisions.
That is a very large bridge however the highest interstate bridge in the United States is the Glade Creek bridge. This 2,179-foot (664 m) long deck truss bridge[3] towers 660 feet (200 m) above the creek bed, making it the highest Interstate bridge in the United States.
By Scott Kozel in 1991. Arching gracefully across the New River, the bridge has the world's longest single arch steel span. At 876 feet above the New River, it is the second highest bridge in this country. Only the Royal Gorge Bridge over the Arkansas River in Colorado is higher.