MEC&F Expert Engineers : 11/30/14

Sunday, November 30, 2014

NATURAL GAS AND PROPANE TANK EXPLOSIONS CONTINUE TO CAUSE DEATHS: 2 PEOPLE DEAD IN ARKANSAS ON 11-30-2014 FROM LEAKING PROPANE TANK; 1 DEAD AND SEVERAL INJURED FROM TWO EXPLOSIONS TWO WEEKS AGO

 THREE GAS EXPLOSIONS DESTROY MANY HOMES IN THREE WEEKS IN ARKANSAS - THREE DEAD AND SCORES INJURED

Explosions of homes everywhere. It seems to be an epidemic of house explosions caused by natural or propane gas leaks. This time it is Arkansas' turn.  Three such explosions in a three week period, leaving 3 dead and scores injured.  Based on the frequency of these explosions, we are concerned with the safety of the distribution piping for the natural gas and/or the safety aspects of the gas connections to the appliances.  Some of these people are old and may not understand the risks that they are exposed to.


2 reported killed in Arkansas house explosion
Posted: Nov 30, 2014 12:48 PM EST Updated: Nov 30, 2014 2:13 PM EST
 LAKE CITY, Ark. (AP) - Authorities report two people have been killed in a house explosion in northeastern Arkansas, between Monette and Lake City.  The home was located on County Road 507.

Craighead County Sheriff told KAIT-TV that two people died and three were injured in the Saturday afternoon blast at the home between Lake City and Monette. Authorities say the two were among two children and three adults who were taken to area hospitals - but the names and ages of those killed were not immediately released.

Back in Arkansas, investigators are still on the scene of the house explosion gathering evidence as to what may have caused the third home explosion in Arkansas this month. Less than three weeks ago, a house exploded in Osceola, Arkansas. Three days later, the second explosion occurred in Mississippi County.



Assistant Lake City Fire Chief Herb Davis told The Jonesboro Sun that it appears there was a gas leak in the home and that the explosion occurred while a gas line was being connected to a propane tank.  The cause is still under investigation.

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TWO HOUSES WERE DESTROYED AND 11 DAMAGED FROM NATURAL GAS EXPLOSION IN OSCEOLA, AR (WMC) -Nov. 12, 2014.  1 PERSON INJURED.

Two houses were destroyed and 11 others were damaged when a gas line caused an explosion in Osceola, Arkansas.

An exclusive look at the damage from Chopper 5 shows houses leveled and debris everywhere. One person was injured in the explosion.
"I just heard a boom and it knocked everything off the walls," said Antoine Carnes, who boarded up parts of his damaged home. "At first I thought it might have been an earthquake."
According to the fire chief, the explosion happened in a house belonging to Debbie Porter, who is the only person with reported injuries at this time.


"She was burned, I do know that," Nadine Vaughn, whose mother's house was also damaged by the explosion. "Her skin was burned so they airlifted her, I believe, to Memphis."
"It's basically like a war zone or something happened," said Andre Harris, who lives next door. "And I'm just praying to God that Ms. Debbie, our neighbor, is alright. We're just thankful that my family is alright."


Harris' house, like Porter's, was destroyed.
"The damage done to my walls, you can even see the damage straight out to my neighbor's house," Harris said.
While investigators believe the explosion erupted from a utility gas line, they do not know what caused it.
"I'm thankful because, like I said, it could have been worse," Harris added. "I thank God that all this can be replaced."
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THIRD ARKANSAS NATURAL GAS LEAK KILLS MOTHER, INJURES HER SON

Posted: Nov 15, 2014 5:18 PM EST Updated: Nov 16, 2014 11:21 AM EST
KEISER, AR (WMC) -
A 90-year-old woman is dead and her 62-year-old son is in the hospital after their home exploded on Saturday.
If a house explosion in Arkansas sounds familiar to you, it's because this is the second explosion to occur within the last four days.
Gladys Willbanks was killed in the blast and her son, Roger Willbanks, suffered severe burns. 
The Keiser, Arkansas explosion happened before noon, but firefighters worked into the night to extinguish hot spots.
Investigators say they believe cold weather and a gas leak are to blame for Saturday's explosion. Fire officials say the family attempted to light a fire inside their home to stay warm, but since gas was in the air, the home exploded.
Roger Willbanks was flown to Regional One Medical Center in Memphis with severe burns. 
WMC Action 5 was there as family and friends rushed inside the hospital Among those was relative Scott Adams, who's still in shock.
"It's just a freak accident, a freak accident, everybody is kind of in shock right now," said Adams.
Adams says Roger Willbanks is in stable condition.
"My personal opinion, they were two great people, two great people, that I know, and they were well-respected in the community," said Keiser Police Chief Ed Guthrie. "They had their heat on, they had a gas leak and they possibly put flames to where the gas was, and the gas exploded."
About three miles away from Saturday's explosion, a house still sits in ruin. The Red Cross says the blast, also caused by a gas leak on Wednesday, leveled two houses and damaged 11 more.
That explosion only injured one person. The homeowner was burnt, but is expected to survive.

FATAL BACKOVER WORKER ALERT AT CONSTRUCTION SITES

FATAL BACKOVER WORKER ALERT AT CONSTRUCTION SITES


It is always very sad to see a young man working for a living in the cold weather to die at a construction site.  Please read this safety alert and ensure that your staff implements the recommendations.  

On February 15, 2014, a 26 year old male employee working as a “Swamper” (driver apprentice) for an oil field trucking company, was fatally injured when he was backed over by a co-worker operating a gas engine, 1-ton dually, welding truck. The welding truck was in the process of relocating past winch truck operations on the well site at the time of the incident.

The company was in preparation for a “rig up stage” at a new well drill site. Just prior to the incident, the welding truck driver and the winch truck employees of the same company met and discussed the planned work. All three employees were aware the welding truck would be required to back up from where it was located, and drive past the swamper and winch truck driver’s location.


The Swamper was assisting the winch truck driver in the relocation of mud and water tanks. After the previous meeting, the winch truck driver returned to his truck, and the Swamper assisted in horizontal rigging of the tank to winch equipment. The welder returned to his truck to move it.

At the time of the accident the welding truck driver was operating a truck without benefit of back- up alarm or spotter. As the welding truck driver backed his vehicle up to the new location, the swamper positioned himself along the storage tank being winched.  The swamper stepped backward into the path of the welding truck, the welding truck passed completely over the victim.
The decedent died of his injuries at the scene.

Cause and Significant Contributing Factors:
·         The welding truck driver arrived on site after the morning job safety analysis (JSA) and tailgate safety meeting.
·         All three workers failed to identify the hazards present on location.
·         There were four different diesel engines running in the area of the incident, creating significant background noise. The diesel engine noise and winds diminished the victim’s ability to hear the much quieter gasoline engine of the welding truck.
·         The victim was wearing a hooded sweatshirt under FRC coveralls, which created limited peripheral vision.
·         The victim inadvertently positioned himself in the path of the welding truck to avoid hazards associated with the winching operation he was assisting with.
·         The victim had his back to the driver; the driver had his back to the victim.
·         The driver of the welding truck could not see directly to the rear due to truck design, obstructed view created by the welding equipment and the driver did not ask for a spotter to assist.
·         The gas engine welding truck was never equipped with a back-up alarm.
·         The victim did not offer to be a spotter, and the winch truck driver did not offer to be a spotter.
·         The trucking company did have a vehicle inspection form, but it was used inconsistently.
·         The inspection form did not have a vehicle specific format, or a back-up alarm check.
·         The winch truck driver was likely in transition of view; he was shifting from left side mirror to right side mirror and rear window view of winch process.


Recommendations:
·         Brief all employees on the facts and circumstances of this fatal incident.
·         In accordance with OSHA Construction Standards, properly equip motor vehicles used in construction environments with audible devices that may be heard over other sounds when being backed-up.
·         Revisit safety programs and JSA information to ensure they are applicable to OSHA standards necessary for the work to be performed.
·         Use a spotter when backing equipment near other personnel as required.
·         Utilize high visibility outer garments.
·         Be aware of your surroundings.
·         Avoid wearing clothing or hooded garments which limit your field of view.
·         Use of approved FRC helmet liners is preferred, as they turn with your head.
·         Ensure that pre-tour safety meetings are conducted to discuss the work to be performed, identifying the potential safety hazards and implementing safe work procedures to control hazards.
·         Ensure the safety meeting information is provided to all employees.


STATIC ELECTRICITY DURING TANK CLEANING, LACK OF FIRE-RETARDANT CLOTHING TO BLAME IN FATAL GAS FIELD BLAST AT EOG RESOURCES SITE IN WYOMING



Static electricity during tank cleaning, lack of fire-retardant clothing to blame in fatal gas field blast at EOG Resources Site in Wyoming
  

September 24, 2014.  Smoke billows at the scene of a gas storage tank explosion near La Barge. A maintenance crew was cleaning the tank when it exploded. One of the people injured in the explosion died at a hospital in Salt Lake City

The fatal flash fire on September 24, 2014 at a natural gas processing site in western Wyoming appears to have been caused by static electricity, according to a preliminary  investigation by the Wyoming Occupational Safety and Health Administration.  One man was killed in the incident and three others were injured.  The site, which included two storage tanks and a well, was being cleaned.  The cleaning appears to have created the static electricity that sparked the fire, said Hayley McKee, an OSHA spokeswoman.
Some of the four men were not wearing fire-retardant clothing, she said.  The investigation into the accident is ongoing.  Jared Loftiss, 35, died later that day at the University of Utah Hospital in Salt Lake City.   Two other men remained at the hospital's burn unit Wednesday, a hospital spokeswoman said.  The fourth individual was treated and released from a Wyoming clinic.

The fire took place on the La Barge Highway about 30 miles north of Green River and near the Shute Creek Plant.  The site is owned by EOG Resources of Houston.  One of the men injured was an EOG employee. The remaining three, including Loftiss, were contractors. 
K Leonard, an EOG spokeswoman, said two of the people injured were employees of the company. Two others were contractors.

The man who died was employed by the contract company, she said.
She called the incident a flash fire and said it took place at a natural gas production site, including two liquids storage tanks and a well.

An explosion in April shut down a Williams Companies Inc natural gas-processing plant about 40 miles (65-km) south of La Barge, in Opal, that churned out about 2 percent of the daily U.S. gas supply. A nearby town was evacuated.

EOG Resources is among the top independent crude oil and natural gas producers in the United States.

DUPONT: 23,000 POUNDS OF TOXIC GAS ESCAPED FROM THE LA PORTE, TEXAS PLANT THAT KILLED 4 WORKERS ON 11-15-14



DUPONT: 23,000 POUNDS OF TOXIC GAS ESCAPED FROM THE LA PORTE, TEXAS PLANT THAT KILLED 4 WORKERS ON 11-15-14


About 23,000 pounds of a flammable, acidic, toxic chemical escaped in the building where four DuPont workers recently died at a pesticide plant in La Porte, the company reported Friday.  We reported on the deadly incident here:

4 WORKERS INHALE TOXIC CONCENTRATIONS OF METHYL MERCAPTAN AND DIE AT DUPONT'S LA PORTE TEXAS CHEMICAL PLANT – UPDATE

That amount of gas could quickly displace the air in an enclosed space, leading to asphyxiation, which medical examiners identified as the cause of the workers' deaths. Although the company has not disclosed how quickly the liquid material escaped and vaporized, it's enough that, if it happened at once, it could fill two Olympic-sized swimming pools.
"The displacement of oxygen would be very severe and very quick," said a former DuPont engineer familiar with the plant and who spoke on the condition of anonymity, adding "within the time it takes you to take a couple of breaths ... that's how quick it is, and you have no idea what's happening to you. Just all of the sudden you're unconscious."
The company was required to submit the report to the Texas Commission on Environmental Quality. Although DuPont disclosed the amount of gas in a three-paragraph news release, it declined to release the full report. Commission offices were closed Friday.
The Nov. 15 release of methyl mercaptan, a foul-smelling gas that, besides its use in pesticide production, is sometimes used to odorize natural gas, is under investigation by the U.S. Chemical Safety and Hazard Investigation Board.
While details of the accident are still emerging, a Chronicle investigation found the pesticide production facility had been plagued with recurring maintenance problems and that workers lacked quick access to breathing equipment that would have given them a better chance at survival.
Those killed included Crystle Rae Wise, 53, the first to alert others of a leak; Wade Baker, 60, a longtime supervisor; and brothers Gilbert and Robert Tisnado, 48 and 39, respectively. Family members and their attorneys said some of the workers who died were trying to help the others escape. They and the company have indicated a faulty valve may have been involved in the release. The gas escaped from pipes and vessels inside the pesticide unit, DuPont spokesman Aaron Woods said.
That methyl mercaptan leaked and killed workers was a tragic irony in a plant that was upgraded years ago to curb the hazards of what's considered a much deadlier chemical: methyl isocyanate, or MIC. It's the chemical responsible for initially killing more than 2,200 people after escaping an Indian pesticide plant in 1984, causing lingering injuries and deaths for thousands more in the world's worst industrial disaster.
Even tiny concentrations of the chemical can be deadly.  DuPont engineers won an industry award for upgrades that allowed the company to produce and consume small batches of MIC, eliminating the need to store and transport it. Methyl mercaptan, on the other hand, had always been viewed as a "pussycat chemical" by comparison, the former engineer said.
The La Porte plant routinely contained tens of thousands of pounds of the mercaptan, according to government documents. Outdoors, it poses the least threat. County officials monitoring air around La Porte after the release detected none of the gas, although residents could smell it because the human nose detects it at levels so small instruments cannot. Woods said the gas that built up inside the pesticide building dissipated over time as it escaped through openings in the structure. Once released to air, it rapidly degrades, he said.

THE ROLLOVER RISKS OF TANKER TRUCKS: GAS TANKER EXPLOSION CRITICALLY INJURES DRIVER IN SPANISH FORK, UTAH



THE ROLLOVER RISKS OF TANKERS: Gas tanker TRUCK explosion critically injures driver in Spanish Fork, UTAH


Few weeks ago we reported on the rollover risks of tanker trucks that carry several thousand gallons of fuel or other hazardous material.  Since that time, there have been several tanker truck rollovers across the States, releasing thousands of gallons of hazardous chemicals to the environment.  Here is the link to that blog.


THE ROLLOVER RISKS OF TWO-TANK TANKERS ARE TOO GREAT TO CONTINUE TO ALLOW THEM CARRYING HAZARDOUS MATERIALS WITHOUT ADDITIONAL SAFETY MEASURES





The forces generated by the sloshing of bulk liquid carried in tanker trucks can cause accidents.  The roll-over tendency of a vehicle can be measured in terms of how many "g" (gravitational acceleration) that vehicle can withstand in cornering.  The higher this value, the safer the vehicle.  For example, full size passenger cars can withstand around 1.2 g.  For a loaded semi-truck the number is 0.4, and for half empty tanker truck it can be as bad as 0.15.  Tanker trucks are used for supplying soldiers with water and fuel.  The trucks sometimes need to operate on rough terrain at relatively high speeds.  This exposes the truck to a roll-over risk. If the tanker is partially empty, the risk of roll-over becomes much higher.
The fluid slosh can definitely throw you around if you're not expecting it. You have to be smooth with your inputs.  If the driver was being stupid/distracted/whatever he could have easily steered/braked too quickly and caused the slosh to tip him over.
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SPANISH FORK, Utah — A semi-truck carrying thousands of gallons of fuel exploded along I-15 Friday.
Posted 2:44 pm, November 28, 2014, by Caroline Connolly, Updated at 06:16pm, November 29, 2014
It happened just after 2:00 p.m., as the truck turned onto the off-ramp to Spanish Fork.
“It was just kind of like a big boom sound. No shrapnel or anything, just boom and then a big plume of smoke,” said Frederick Haywood, who was traveling in another semi-truck behind the accident.
According to Utah Highway Patrol, the driver of the truck lost control as he came around a turn on the ramp and slid off the road, eventually flipping over.
Police believe he was carrying approximately 8,500 gallons of gasoline on board. When the vehicle tipped, much of the fuel poured onto the road and sparked a fire. Before the flames could spread considerably, bystanders who were stopped in their cars ran over to pull the truck’s driver out.
“He did have very serious burns over a large percentage of his body,” said Sgt. Brett Christensen of Utah Highway Patrol.
Police identified the driver as Leslie Shelton, 28, of Colorado. He was taken by medical helicopter to University of Utah Hospital, where he remained in critical condition Friday night.
According to Christensen, the company Shelton works for is also from Colorado.
“We are still investigating what caused this,” Christensen said, “We don’t want to speculate.”
An environmental cleanup crew was scheduled to clear the remaining fuel from the road.
Throughout most of the evening, traffic was diverted past the ramp, towards the Benjamin exit a few miles away. Authorities were eventually able to open one lane, but continued to monitor the vapor levels of the gas.


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USA, ME, PORTER, NOVEMBER 13 2014. PORTER ROAD REMAINS CLOSED AFTER GAS TANKER TOPPLES >> UP TO 2,500 GALLONS OF GASOLINE SPILLED
PORTER, Maine —Route 25 in Porter reopened Thursday morning after a tanker truck filled with gasoline rolled over Wednesday night.
While the road has reopened, the cleanup could take most of the day.
No one was injured in the crash, which was reported at 6:08 p.m. Wednesday, Deputy Michael Halacy of the Oxford County Sheriff's Office said.
Halacy estimated the ditch the tanker rolled into was within 100 yards of a river.  He noticed gasoline fumes when he first arrived at the crash scene.
Officials estimate 2,500 gallons of gasoline spilled. The tanker was carrying 10,000 gallons.


The Maine Department of Environmental Protection said the gasoline did not pose a threat to the river, but asked neighbors to remain indoors.
"The major issue is explosive vapors, because the gasoline's been released into the ground so we have explosive vapors in that area so we have to be very cautious that we don't produce a spark to start a fire or explosion," said Stephen Flannery of Maine DEP.
The 2014 Freightliner had hit a sharp drop-off edge of pavement before going into the ditch on its right side, Halacy said.
The crash occurred about a quarter of mile from Oxford-York County border and within a couple hundred yards of Colcord Pond Road.


Watch the Video Porter Road Remains Closed after Gas Tanker Topples
WMTW News 8's Courtney Sturgeon reports on the cleanup of up to 2,500 gallons of gasoline in Porter after an Irving oil truck tipped over into a ditch.  No one was hurt in the crash, but a section of Route 25 will remain closed as the gasoline is moved to another tanker.

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Overturned 18-Wheeler Shuts Down I-20 in Benbrook



NBC 5 News
Crews remove 40,000 pounds of chicken from an overturned 18-wheeler that shut down Interstate 20 for several hours near U.S. 377 in Benbrook Thursday morning. (Nov. 27, 2014)
Thursday, Nov 27, 2014 • Updated at 8:34 AM CST
Interstate 20 was shut down in both directions in Benbrook for several hours after an 18-wheeler overturned Thursday morning.
Police said they are investigating what caused the 18-wheeler to fall on its side on westbound I-20 near U.S. 377 just before 4 a.m.
At about 6 a.m., Hazmat crews finished cleaning nearly 100 gallons of diesel fuel that spilled onto the freeway in the wreck, according to police.
Officials said they had to offload 40,000 pounds of chicken the truck was carrying to California, which delayed cleaning of the road.
As of 8 a.m., the truck had not been cleared from the road, but police reopened the freeway.
No injuries were reported.


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USA, OK, MEDICINE PARK, NOVEMBER 14 2014. TANKER HAULING SULPHURIC ACID STUCK IN MEDICINE PARK
A tanker carrying 45,000 pounds of sulfuric acid is currently stuck on Big Rock Road near State Highway 58 in Medicine Park. The Medicine Park Police Chief says the driver was headed to the water treatment plant around noon when he took Highway 58 to Big Rock Road instead of going down State Highway 49. If you've ever driven through the area, you know there's a steep grade with a lot of sharp turns. At some point, the back end of the tanker went off the road and became stuck. The Medicine Park Fire Department and police, along with the Oklahoma Highway Patrol and the Comanche County Sheriff's Department, responded. They closed off the road that leads to the Big Rock Estates for safety reasons. The police chief says they are waiting on an empty tanker from Texas to arrive and transfer the acid so they can safely remove the stuck tanker from the road. He also says the company is flying out a safety specialist to monitor the transfer. They expect to begin transferring the acid Friday morning when they have daylight to work in. The road will remain closed until at least noon Friday.
http://www.kswo.com/story/27378714/tanker-hauling-acid-stuck-in-medicine-park 

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Tractor Trailer Rolls Over at Thruway Exit, Causing Delays

By: TWC News Staff

Updated 11/29/2014 06:54 PM
SCHODACK, N.Y. -- A tractor trailer going too fast around a ramp at Exit B1 of the Thruway caused traffic delays throughout the day Saturday.
According to state police, the truck, which was carrying 11,000 gallons of gasoline, was heading east toward Massachusetts when it flipped around 9 a.m. Saturday.
Police said an unknown amount of gasoline spilled from the trailer, so HazMat and fire teams were called in.
The driver was taken to a nearby hospital with injuries described as not life-threatening.
The highway was cleared up by 6 p.m. Saturday.
 

Tractor Trailer Rolls Over at Thruway Exit, Causing Delays

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SCHODACK, N.Y. -- A tractor trailer going too fast around a ramp at Exit B1 of the Thruway caused traffic delays throughout the day Saturday.
According to state police, the truck, which was carrying 11,000 gallons of gasoline, was heading east toward Massachusetts when it flipped around 9 a.m. Saturday.
Police said an unknown amount of gasoline spilled from the trailer, so HazMat and fire teams were called in.
The driver was taken to a nearby hospital with injuries described as not life-threatening.
The highway was cleared up by 6 p.m. Saturday.
- See more at: http://albany.twcnews.com/content/news/789037/tractor-trailer-rolls-over-at-thruway-exit--causing-delays/#sthash.283tvdka.dpuf
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Tanker crash shuts down Eastbound Route 50 in Landover for hours





9:55 p.m. EST November 30, 2014






(Photo: College Park Volunteer Fire Department)



1 CONNECTTWEETLINKEDINCOMMENTEMAILMORE



LANDOVER, Md. (WUSA9) -- Eastbound Route 50 in Landover was shut down for almost twelve hours on Sunday after a tanker truck crash, fire officials said.



The tanker ran off the road and into a ditch near Route 202 around 5:50 a.m. fire officials said. The driver was taken to a trauma center, officials said.



Hazmat officials spent hours cleaning up 22 hundred gallons of fuel that spilled onto the road during the incident. The road reopened just after 5 p.m.



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By: Greg Palmer
WICHITA, Kan. (KAKE)-- Emergency and hazmat crews were called Thursday evening to the scene of an overturned tanker near downtown Wichita.
It happened around 6:15 p.m. in the area of Water and Indianapolis streets, near Kellogg and Main. Crews arrived to find the semi truck still upright, but the tanker it was hauling had rolled onto its side.
Witnesses say the driver was trying to make a U-turn when the accident occurred.
The tanker was carrying approximately 5,000 gallons of an oil additive that is of low toxicity and didn't pose a danger to the public, said Acting Battalion Chief Chad Winton.
None of the substance spilled, and no injuries were reported.
Traffic was expected to be shut down in the area for a while as crews work to clear the scene.
 
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I-90 reopens after tanker goes off road, flips over leaking fuel onto freeway

3:30 A.M. - All lanes of I-90 eastbound at West 44th Street and the left 3 lanes on I-90 westbound at West 44th Street are currently closed after a tanker truck flips over spilling diesel fuel onto the roadway.
Police said, it happened around 2:30 a.m. Friday morning. HAZMAT crews have been called to the scene.
According to ODOT, The highway is expected to remain closed through rush hour traffic this morning. Drivers are being asked to use SR2 and I-480 as alternate routes.
Crews are able to detour motorists off at W 44th street and back into I-90 eastbound at West 44th street, however this will quickly back up traffic on I-90 eastbound if motorists do not choose alternate routes.
The driver of the Semi was treated at the scene and suffered no serious injuries.
 

 


Tractor Trailer Rolls Over at Thruway Exit, Causing Delays

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SCHODACK, N.Y. -- A tractor trailer going too fast around a ramp at Exit B1 of the Thruway caused traffic delays throughout the day Saturday.
According to state police, the truck, which was carrying 11,000 gallons of gasoline, was heading east toward Massachusetts when it flipped around 9 a.m. Saturday.
Police said an unknown amount of gasoline spilled from the trailer, so HazMat and fire teams were called in.
The driver was taken to a nearby hospital with injuries described as not life-threatening.
The highway was cleared up by 6 p.m. Saturday.
- See more at: http://albany.twcnews.com/content/news/789037/tractor-trailer-rolls-over-at-thruway-exit--causing-delays/#sthash.283tvdka.dpuf