DOTD, at this time, has no concerns related to the integrity of its state roads, specifically La. 70 in Assumption Parish. However, out of an abundance of caution, DOTD engineers are continuously monitoring the state road system in this area -- 24 hours a day with roving patrols and frequent surveys. If conditions change, DOTD crews are prepared to close the roads immediately to ensure public safety and will announce appropriate detours. DOTD is monitoring LA 70 from the Bayou Corne Bridge east to LA 996. The Department is also monitoring a one-half mile stretch of LA 69 from its intersection with LA 70. In the event conditions develop that would make the road network unusable or unsafe, we have planned the detour to be as follows:
* Traffic traveling to Pierre Part and points south will be directed to LA 1 South to LA 398 West, to LA 662 West, to Hwy 90 West to LA 70.
* Traffic traveling from Pierre Part and points south will be directed to US 90 East to LA 662 East, to LA 398 East, to LA 1 north to LA 70.
* Local traffic (passenger vehicles and trucks below the posting of the Bayou Pigeon Bridge (15/25)) will be able to take LA 997 to LA 75 to LA 404 to LA 69.
* If the order is given to close the road, DOTD crews will install trailblazing signs to notify drivers of the detour. We will also install Variable Message Signs (VMS) at LA 70 at LA 1 and LA 70 at LA 69. We will notify District 03 and they will install a VMS on LA 70 just north of Morgan City.
An exploratory well, the Shell Oil Company, State Lease 3956 No. 1, Offshore St. Bernard Parish, Louisiana, was completed in 1963 at a total depth of 8538 feet. The last 1300 feet of hole was cored and drilled through volcanic material of Late Cretaceous Age. The location of this well is shown on Figure 1. Pre-drilling seismic data had revealed the presence on this prospect of intrusive material with a density slightly higher than that of the surrounding sediments. Gravity data defined a weak maximum here, and no salt was believed to be present. The igneous material consisted of angular fragments of altered porphyritic basic rock. In cores it proved to be evenly bedded and cemented by sparry calcite. Radioactivity age dating fixed a minimum age of crystallization of this rock at 82 m.y. + 8, or middle Late Cretaceous (Austin). Bulk density of the igneous rock ranged from 2.02 gm/cc near the top of its occurrence to 2.53 gm/cc near the bottom of the well.
Originally posted by TheOtter
AuntB, for those of us who can't watch video right now (I'm at the in-laws) maybe you could post a quick summary? Peace Otter
Gov. Bobby Jindal planning to see the sinkhole for himself
Seven months after a sinkhole forced the evacuation of 150 homes in swampy Assumption Parish, Gov. Bobby Jindal said Monday that he'll visit the site where nine acres of land have disintegrated into muck. Jindal's said he'll head to the sinkhole site next week. The announcement comes after residents displaced since early August criticized the governor's absence and after local media attention highlighted Jindal's refusal to say whether he'd check out the state's response efforts in person.
An asphalt volcano is a rare type of submarine volcano (seamount) first discovered in 2003. Several examples have been found: first, along the coasts of America and Mexico, and, recently, all over the world; a few are still active. Resembling seamounts in structure, they are made entirely of asphalt, and form when natural oil seeps up from the Earth's crust underwater.
The first asphalt volcanoes were discovered in 2003 by a research expedition to the Gulf of Mexico. They are located on a seafloor hill named "Chapopote," Nahuatl for "tar." The site is located in a field of salt domes known as the Campeche Knolls, a series of steep hills formed from salt bodies that rise from underlying rock, a common feature in the gulf. The research team documented tar flows as wide as 20 m (66 ft) across. Also discovered alongside the asphalt were areas soaked with petroleum and methane hydrate, also spewed from the volcano.