Find Russian equivalents to the following English word combinations

Estimated seismic activity, expressway lanes, fabrication method, fan shaped arrangement, fine-dispersed material, fracture zone, multi-cable-stayed system, ring road, rock debris material, Science-Production Association, single tower cable-stayed structure, state-of-art-technology, temperature swings, unobstructed passage.

Answer the following questions

1. What span length is considered to be a record length for the single tower cable-stayed structures in Russia?

2. What technological advance is associated with the Sourgut Bridge construction?

3. Why is the road bridge over the Irtysh River, considered to be a unique structure in the city of Khanty-Mansyisk?

4. How does the new cable-stayed road bridge in St Petersburg differ from the rest bridges over the Neva River?

5. Why does the Silvery Pine Forest Bridge prove to be an engineering achievement and a tourist attraction simultaneously?

6. Which of the two spans (the cable-stayed bridge in Vladivostok or the Akashi Kaikyo suspension structure in Japan) is longer?

7. Why has the Baikal-Amur Trunk Line greatly influenced Russian tunnel engineering?

8. Why are the tunnellers so proud of having constructed the Northern Muya Tunnel?

9. What challengers did they face while tunneling?

10. What newly-developed construction methods did they use?

11. What is the influence of the forthcoming Winter Olympic Games on the Russian transport system?