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Tuesday, March 27, 2018

Two million Dutch homes to be gas free by 2030, as energy transition takes shape

DutchNews, March 26, 2018

Income from gas was down considerably. Photo: Depositphotos.com 

The Dutch government has set a target of ensuring one in four Dutch homes no longer relies on gas for heating or cooking by 2030, according to Diederik Samsom, the former Labour party leader who is part of the team charged with negotiating the energy transition.

Instead, homes will be heated via geo-thermal pumps or sustainable city heating networks which either generate heat directly or use excess heat from industry, Samsom says. 

Samson has been asked by the government to reach agreement on the necessary measures with business and interest groups. In an interview with Trouw he describes the target as ‘realistic and ambitious’. 

In the first year of the project, 50,000 homes should be cut off from gas and the rate of transition ramped up in the following years. In addition, no more new homes should be connected to the gas network, Samsom says. 

In Amsterdam, for example, two new residential districts are being built without gas and some 70,000 homes in the city are already on district heating networks. 

Relatively new, well insulated homes can start running on heat pumps and electricity – preferably green energy from wind turbines and solar panels. For older districts that will often be expensive and complex, says Samsom. With some extra insulation, they should switch to large-scale heat networks using clean geothermal energy. 

The government said earlier it wants housing to be completely gas free by 2050.

Friday, March 23, 2018

Building site fatalities on Dutch construction projects double in two years

DutchNews, March 22, 2018


The number of job-related deaths on building sites in the Netherlands has doubled in the past two years, according to the social affairs ministry inspectorate SZW. 

In 2017, there were 20 fatalities, up from 16 in 2016, public broadcaster NOS reported on Thursday. 


The increase is attributed to the fact that there are far more subcontractors – independent contractors known as zzp’ers in the Netherlands – working on Dutch building sites in addition to foreign workers who lack knowledge of the Dutch language and unqualified workers. 


‘Previously there was always one major contractor with a safety coordinator, but nowadays there isn’t and this has led to big problems,’ the inspectorate said. 


The building sector leads all others in terms at workplace fatalities. There were 162 deaths on construction sites over the past eight years and that represents 30% of the total.

Sunday, March 18, 2018

Engineer warned of cracking in US bridge before deadly collapse

Yahoo – AFP, Leila MACOR, March 17, 2018

The pedestrian bridge that collapsed in Miami had only been installed over
the weekend (AFP Photo/Antoni BELCHI)

Miami (AFP) - The chief engineer of a Florida bridge project warned authorities of cracking in the structure days before it collapsed, killing at least six people, the southern US state's department of transportation said Friday.

Chief engineer Denney Pate left a voicemail on a Florida Department of Transportation employee's landline on March 13, two days before the pedestrian walkway came crashing down on the major road beneath, the department said in a statement.

The voicemail -- which was not heard until Friday because the employee it was left for was out of the office -- mentioned a problem, but did not warn that structural failure was imminent.

There was "some cracking that's been observed on the north end of the span," Pate said, according to a transcript of the call.

"Obviously some repairs or whatever will have to be done but from a safety perspective we don't see that there's any issue there," Pate said.

At least eight cars were trapped when the 950-ton (tonne) bridge suddenly gave way on Thursday, Miami-Dade Fire Rescue Division Chief Paul Estopinan said.

The walkway, which connected Florida International University to a student housing area, had been raised less than a week ago but was not expected to be operational until 2019.

Death toll could rise

Miami-Dade county police spokesman Alvaro Zabaleta told reporters that on Friday rescue operations shifted to one of body recovery, with engineers fearing the support structures at either end of the bridge could also come down.

"The entire bridge is in jeopardy," Zabaleta said.

Juan Perez, director of the Miami-Dade police department later told reporters that a team of government prosecutors was on the scene as part of the investigation, but stressed it was too soon to say whether criminal charges would be brought.

Emergency personnel searched for victims at the scene of a bridge collapse in 
Miami (AFP Photo/Miguel GUTIERREZ)

"It is important that we understand, this is a homicide investigation. That's all it is," he said. "That means that somebody died... It does not mean there (are) criminal charges looming or pending or anything like that."

The death toll meanwhile was likely to go up when authorities extracted and identified the remains of victims in vehicles trapped under the rubble, Perez said.

Ten people were taken to hospital after the bridge collapse, Zabaleta said.

Video footage showed the concrete structure suddenly crashing onto the road below.

Police detective Juan Carlos Llera said when the bridge came down, it "sounded like an explosion. A huge bang."

"It looks like a disaster area. It looks literally like a bomb went off," Llera told AFP.

Miami Fire Chief Dave Downey emphasized there was no hope of finding survivors.

Loose cables

The bridge was suspended from cables which came loose, and while they were being tightened the whole thing collapsed, Florida Senator Marco Rubio wrote on Twitter.

The university had just celebrated the walkway's construction, which bridges a busy and dangerous section of highway that students said had been the scene of accidents.

It was raised using an accelerated modular building method that enabled the bridge to go up in the space of a day.

FIGG Engineering Group, one of the partners involved in the walkway's construction, said it was "stunned" by the bridge collapse, and vowed in a statement to "fully cooperate with every appropriate authority in reviewing what happened and why."

Munilla Construction Management, which was also involved, issued a statement of condolence. Bridge collapses in the United States are rare despite rising risks associated with aging infrastructure.

The deadliest such incident this century was in Minneapolis, Minnesota in 2007, when an eight-lane bridge collapsed into the Mississippi River, killing 13 people.