Weserauentunnel
 Weserauentunnel
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 Weserauentunnel (south entrance)
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| use | Road tunnel | |||
| traffic connection | B61 | |||
| length | 1733 m | |||
| vehicles per day | approx. 25,000 | |||
| Number of tubes | 2 | |||
| cross-section | 2 × 19 meters | |||
| construction | ||||
| building-costs | around 82 million euros (including 7 million euros expensive security equipment) | |||
| start of building | August 25, 1998 | |||
| completion | 2002 | |||
| business | ||||
| operator | Streets.NRW | |||
| release | December 6, 2002 | |||
| location | ||||
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| Coordinates | ||||
| North portal | 52 ° 15 ′ 36 " N , 8 ° 54 ′ 57" E | |||
| South portal | 52 ° 14 ′ 42 " N , 8 ° 54 ′ 58" E | |||
Map with all coordinates: The Weserauentunnel is a road tunnel in the area of Barkhausen , a district of the East Westphalian city of Porta Westfalica in North Rhine-Westphalia . In the tunnel, federal highway 61 runs through the floodplains between Porta Westfalica and Minden . Because of the risk of flooding from the Weser , the road in this area has been moved into a water-protected bank tunnel.
Regional connection
The B 61 is a national highway and runs from Rheda-Wiedenbrück in North Rhine-Westphalia to Bassum in Lower Saxony. It is part of the main connection axis between Bremen and East Westphalia-Lippe. Between Porta Westfalica and Minden, the B 61 runs east of the Barkhausen district as a bypass road and runs almost parallel to the Weser through the Weser floodplains to the north. The newly built bypass road with the Weserauentunnel has four lanes and has a motorway-like character. It flows into the so-called pear in Minden , a roundabout-like intersection in the city passage to the north.
In the south (in the Porta ) a four-lane bridge has been built in an offset position for the crossing over the Weser. As part of the expansion, several houses in Barkhausen were demolished to make room for the access ramps. The old bridge above the Porta Westfalica train station from 1954 was demolished in 1995, what remained on the right bank of the Weser was a protruding wall that afforded a view of the Kaiser Wilhelm monument . The connection to the B 61 to Bad Oeynhausen turns into a two-lane federal road.
history
In the 1960s, around 25,000 cars drove through Barkhausen every day. That is why people thought about change plans even then. However, planning and implementation dragged on until the end of the 1990s. The start of construction had to be postponed again and again, especially due to the local citizens' initiatives that resisted the construction.
Structural data and tunnel safety
The 1,730 meter long tunnel, with a 310 m long southern and 520 m long northern ramp, is part of a new section of the B 61 in the Weser floodplains between the cities of Porta Westfalica and Minden. The official groundbreaking took place on August 25, 1998. The two-lane drivable tubes are each 9.50 meters wide and 4.95 meters high. After more than four years of construction, the two-tube road tunnel was inaugurated on December 6, 2002 and opened to traffic a few days later. The total cost was around 82 million euros.
According to experts, the Weserauentunnel is one of the safest tunnels in Germany thanks to its safety equipment, which has now cost around 7 million euros and was partially retrofitted after tunnel disasters.
Escape route lights are attached to the tunnel walls every 25 m. In between, in October 2009, self-illuminating LED guiding elements were built into the ground to the right and left of the lanes, also at 25 m intervals. They are used for even better orientation. The lights can be seen both in the direction of travel and in the opposite direction. With the escape route orientation lights and the guide elements in the floor, there is lighting after approx. 12.5 m.
The tunnel is monitored around the clock by the tunnel control center in Hamm using a video system, among other things. 14 color cameras per tube are installed for this purpose. In October 2009, additional video cameras and loudspeakers were installed in the emergency exits. The cameras at the tunnel portals can be rotated, tilted and zoomed. Possible fires are recorded by a fire alarm system and reported to the control center.
If there is an accident in one of the two tunnel tubes, road users have several options: An emergency call can be made via 27 emergency call stations at a distance of 150 m. The affected tube can be left via 10 escape doors in the middle wall and changed to the other, safe tube. Furthermore, four stairwells serve as emergency exits. It leads to the back of the tunnel on which the Weser cycle path runs. The tunnel's safety equipment also includes 20 jet fans with an output of 12.5 kW each, which can push smoke out of the tubes.
Landing areas for rescue helicopters were created near the two tunnel portals.
In order to adapt the tunnel to the safety standards of the RABT (guidelines for the equipment and operation of road tunnels) in 2006, further measures were started in 2016-2018 and partially implemented (e.g. renewal of the escape doors (center wall and escape staircases)), which will end in 2020 should be.
Web links
Individual evidence
- ↑ Information from strassen.nrw. Tunnel construction and tunnel safety: Construction times for the tunnel retrofitting program: B61 Weserauentunnel (Porta Westfalica) with an overview of the individual measures already carried out and to be carried out in 2020 (accessed: July 13, 2019) .
Coordinates: 52 ° 14 ′ 41 ″ N , 8 ° 54 ′ 56 ″ E