How Steep Is the Rainbow Bridge?
The 7,760-Foot-Wide Bridge Stretched over the Neches River with a Clearance of 177 Feet and a Main Span of 680 Feet, It Held the Title as the Tallest Bridge in...
The 7,760-foot-wide bridge stretched over the Neches River with a clearance of 177 feet and a main span of 680 feet, it held the title as the tallest bridge in south for years. A defining feature of the Rainbow Bridge is its steep incline, a 5 percent grade for every 100 feet.
What angle is the Rainbow Bridge?
The total length of the bridge and approaches would be 7,752 feet. The roadway was to be 25 feet wide between railings and 22 feet wide between curbs, providing an eighteen-inch walkway. The incline of the bridge was to be 5 percent, a rise vertically five feet for each 100 feet of climb.Why is the Rainbow Bridge so steep?
Why was the bridge built so tall, 177 feet of vertical clearance, in that delta region? There was an important ship channel there and they wanted the tallest ship in the navy at the time, the USS Patoka, the be able to pass easily beneath it.
James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.
