The Golden Gate Bridge first opened in 1937 to vehicle traffic providing a major route between Marin County and San Francisco. It is an iconic structure and without it the city would look incomplete. With its 746 foot orange towers, its extensive cables and its position on the base of the Pacific, the Golden Gate Bridge is both a major roadway for daily commuters and a famous tourist attraction. Positive: It’s a major roadway and tourist attraction.
Negative: Roughly 50 people commit suicide of off it every year. Aswan Dam:
The Aswan Dam is situated across the Nile River in Aswan, Egypt. It is also known as the High Dam. The dam was constructed between 1960 and 1970, and had a significant impact on the economy and culture of Egypt. Before the dams, the Nile River flooded every year during late summer. These floods brought high water and natural nutrients and minerals that annually enriched the fertile soil; this had made the Nile valley perfect for farming since ancient times. The floods were unpredictable and often wiped out crops causing famine across the land. As Egypt’s population increased and conditions changed, both a desire and ability developed to control the floods. With the storage provided by the Aswan dams, the floods could be lessened and the water stored for later release. Positive: This dam created a more stable economy in Egypt.
Negative: The Nile delta is becoming smaller because the river no longer carries any sediment or pebbles downstream from the dam. The Chunnel
The Chunnel is an undersea railway linking England to France. It is 34.1 miles long crossing the English Channel. The Channel Tunnel possesses the longest undersea portion of any tunnel in the world. The tunnel carries high-speed Eurostar passenger trains. The successful project, organized by Eurotunnel, began construction in 1988 and opened in 1994. Positive: The Chunnel allows fast and easy transportation between England and France. Negative:...