Thankfully, refineries can customize the product a bit for the market. They do this mostly to change the boiling point, but it affects freezing point too. Northern regions in winter will have gasoline with a lower freezing point. Southern Arizona in summer will have gasoline with a higher freezing point. Gas with ethanol will freeze lower. I would hazard a guess that for northern-state winter blend gas, going down to -70F (the freezing temperature of octane) is fine. Of course, that's probably all moot. Gasoline engines don't start when they get too cold, because the fuel doesn't vaporize properly.
Visitors Guide. Lake Pontchartrain Causeway. The Lake Pontchartrain Causeway holds the title for the longest bridge over water at 23 miles long. It officially opened in 1956, and cut travel time from North Shore communities to the city of New Orleans by 50 minutes.
4200 Feet (0.8 miles), or 1280 meters (1.28 km)The bridge is 4200 feet between the towers, which is 60 feet shorter than the Verrazano-Narrows bridge in New York City. The total length of the bridge is 8981 feet. Other figures: Height: 746 feet; Width: 90 feet; Clearance underneath: 220 feet at mean high water. The Golden Gate Bridge was opened to vehicular traffic on May 28, 1937 at twelve o'clock noon...over 70 years old.