Bridge collapsed partly for one week ago, after an avalanche of soils reef with his one foundation.
Now hurry to get the remains down to avoid that ground under the bridge will be further destabilized.
No one today can answer what this will cost, or how long it will take before E18 can be opened to normal traffic.
Reusing something
The main goal is to keep northbound bridge so that it can again be traffic on this.
This means that the injured bridge, which is in the southbound run by E18, must be taken down in a controlled manner so that northbound bridge is not damaged.
The plan is that During the next week, a make a controlled blasting of parts of the bridge.
Stabilizes reason
To achieve this, the ground by bridges first stabilized. This is done by lime and cement stabilization and drainage.
Bridge has dropped 2.5-3 meters in the top, and up to five meters near the bottom.
– security is important, and we can not say anything about how long it will have to get demolished the damaged bridge and possibly get opened, says Department Ingunn Foss NPRA.
– What triggered landslide?
– Now we have fully focus on getting demolished bridge, and then we’ll look at causal relationships later, says Foss.
case continues under the graphic
-Står stable
– During the weekend has NPRA had finished the first phase of basic drilling and analyzes of samples taken. In addition, the NPRA expert for bridge and geotechnical been at work since the incident occurred and made their investigations, writes NPRA in a statement.
During this week it should also further considered whether any use of Holmestrand tunnel as part of detour road.
It’s Vestfold County is vegeier and any use of the tunnel must be clarified with this.
Built on clay
NPRA will check 523 bridges that are built in areas with clay soil, reported NPRA before the weekend.
– This does not mean that it is unsafe to drive on these bridges. We consider Norwegian bridges to be generally safe. It happened with Skjeggestad bridge on the E18 Monday we see as an extraordinary event, emphasizes Jane Bordal NPRA.
Expands number bridges checked
On the basis of Skjeggestad bridge incident has NPRA made a list of 523 bridges crossing the unmapped areas with clay.
The list contains 170 bridges on the national road network, while 353 are on county roads.
Expands surveys
Earlier last week there has been talk about checking 80 bridges.
This selection was based on similar structures that Skjeggestad bridge built in same time.
Public Roads has now considered that the review should be extended to apply to all bridges built near areas with clay.
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