Bundesautobahn 70
Template: Infobox trunk road / Maintenance / DE -A
State:
- In construction
- In planning
- Traffic control system
The Federal Highway 70 (abbreviated as BAB 70) - Short Form: Highway 70 ( Abbreviation: A 70 ) - also known as Main Valley Highway - is a highway, as an additional east-west connection from the Federal Highway 7 at Schweinfurt Bamberg to the Federal Highway 9 at Bayreuth leads. It is part of the European route 48 and has a length of 120 kilometers. The BAB 70, created in 1981 from the be classified highways 26 (new) and 505
History
Section Bamberg Bayreuth
The route Bamberg Bayreuth in 1937 was planned in the basic network of autobahns as a supplementary route. Already in November 1937, construction began on the 9.7 -kilometer section of the triangle Bayreuth / Kulmbach the junction Kulmbach / Neudrossenfeld. The development of Kulmbach had, among other things its importance, since on the Plassenburg the National Socialist League of German engineering ( NSBDT ) under Fritz Todt entertained the imperial school of German art. In September 1939, the construction work and the construction preparation of the remaining distance were adjusted due to the war. 1956 was followed by the resumption of work and on 21 November 1958, the start of the section to Kulmbach as single-lane highway with two lanes. The completion of the second carriageway of the route now known as Highway 89 was twelve years later on 1 October 1970.
To improve the traffic situation between Bamberg and Bayreuth was the beginning of the 1960s, between junctions Kulmbach / Neudrossenfeld and Stadelhofen single-lane national road 22 ( new) built and opened to traffic on 26 November 1964. On July 23, 1972, the route, now known as Federal Highway 505, one continuous section. She pointed down to the last piece on two lane and was partially already prepared for the subsequent four-lane expansion. 1988 began the cultivation of the second road, which was completed on 20 June 1996.
Section Schweinfurt Bamberg
Mid-1960, plans to another terminal of Schweinfurt to the BAB 7 The feeder road should bypass the city to the south. 1966, the section was handed over to the junction Werneck the market, followed in 1968 by the piece to Bergrheinfeld, the end of 1970 Schweinfurt center was reached and on 15 December 1971, the total 19 -kilometer section of single track to the junction plantations in operation.
In 1971, the German Bundestag decided on the continuation of the route as a motorway-like, first -lane State Road 26 (New) to Bamberg. The northern road was completed in 1981 to Knetzgau. With the scale-up to the BAB 70 in 1981 was followed for the largely two-lane route a nationally unique signs with blue BAB numbers on yellow note characters. The construction of the section between Knetzgau and Eltmann was taken in mid-1983 in attack. It took four years due to the tunnel on Black Mountain and the Main Bridge Eltmann and was single lane, passed on 6 November 1987, two lanes to traffic. Construction on the approximately 20 -kilometer gap piece to Bamberg, which was made the same two lanes, then followed and were concluded on 10 October 1991. Thus, the BAB 70 could be driven.
In autumn 1989 the two-lane expansion of missing southern carriageway of the western branch part began, he was completed in Knetzgau on 10 September 1995. The Black Mountain Tunnel and the Main Bridge Eltmann put the car Nordbayern back for cost reasons. The second tube of the tunnel with the southern carriageway was taken in late 2002 attack and was completed in November 2004. Then the old, northern tube was subjected to repair and safety upgrading until mid-2005, said traffic was passed through the new tunnel. Since mid- 2005, both tubes are in use. The second bridge over the Main Eltmann for carriageway Bamberg was built starting in autumn 2004. With the completion of the bridge, the motorway is 70 fully expanded four lanes since 18 December 2006.
Importance for traffic
The initially planned as a development highway for northern Bavaria route has evolved after the German reunification in 1990, in east-west direction to an important supplementary route for traffic to Thuringia and Saxony. Together with the Federal Highway 73 between Erlangen and Bamberg is the BAB 70 is a large-scale relief route for the driving relationships Nuremberg - Fulda and Nuremberg -Bayreuth. Orange arrows indicate redirection when needed from the route.
The Verkehrszählstelle the triangle Bayreuth / Kulmbach registered 1978 7.500 vehicles per day, in 2005 there were approximately 22,000 and 25,000 vehicles for 2020 are forecast. After connecting the BAB 71 on 17 December 2005 is expected for 2015 in Schweinfurt area of 60,000 vehicles a day.
Planning
It is planned to renew the oldest section between the junction Bayreuth / Kulmbach and the junction Kulmbach / Neudrossenfeld, which has a slope of up to 6.7 percent on Harsdorfer mountain and mostly has no hard shoulder. The slope should be reduced to 5.8 percent. It is also provided that bridge structures, which date from the 1940s to replace. The cost will be about 45 million euros. Construction should be completed by the end of 2014. A disputed eastern continuation of the Czech Republic was shelved. It is still a federal highway 303 in the new requirements of the Federal Transport Infrastructure Plan of 2003.
A western continuation of the A 70 towards Karlstadt and then snapping off to Würzburg around, the A 3 B 26 is new as planned.