Engineered or architectural bridges?

For the last 40 years, bridge construction has genuinely progressed in the analytical area to improve durability, earthquake resistance, and wind and dynamic load oscillation behavior. Good bridge design has always depended on a combination of aesthetic and engineering features as exemplified by the Sunniberg bridge at Klosters, Switzerland and the Bunker Hill bridge in Boston, USA. Other bridges designs discussed are the new bridge in St. Louis over the Mississippi river, Hoover Dam bridge near Las Vegas, San Francisco Oakland East Bay bridge. Bridge development is hampered when the bridge engineer overrules or abandons the conceptual design of the architect. The relationship of bridge architects and bridge engineers has traditionally been one where the bridge engineer acts in static consulting capacity, a situation that today needs change. A bridging of the culture gap between analytic and creative functions of bridge building is proposed.