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E20 TALLINN - NARVA RECONSTRUCTION MAARDU - VALGEJÕE.

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Presentation on theme: "E20 TALLINN - NARVA RECONSTRUCTION MAARDU - VALGEJÕE."— Presentation transcript:

1 E20 TALLINN - NARVA RECONSTRUCTION MAARDU - VALGEJÕE

2 MAIN OBJECTIVE Reconstruction of various road sections to improve the road condition, traffic safety and road environment

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4 MAIN PARAMETERS pavement - 11,5 m (1 + 2 x 3,75 + 3) embankment ,25 m road - 35,5 - 37,5 m central reserve ~ 11 m

5 TRAFFIC VOLUME Jägala km 26, Kuusalu km 40, Liiapeksi km 52,

6 TRAFFIC SAFETY traffic accidents 5 people killed 59 injured walking along the road - 13 collision with animals - 7 dark time - 54% of the accidents

7 PAVEMENT CONDITION LAST CONSTRUCTED Section Section Section Section Section

8 PAVEMENT CONDITION IRI ruts defects bearing capacity Section 14,76 13, % 345 Section 25,99 14, % 390 Section 34,13 13, % 335 Section 45,85 10, % 315 Section 56,51 13, % 299 Critical value 3,5 -8 % 230

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10 SCOPE OF MAIN WORKS Construction of the new payment courses Improvement of embankments Improvement of the drainage system Construction of a new bridge Renovation of viaducts and bridges Traffic arrangement and safety measures Environmental mitigation measures

11 MAIN INDICATORS Reconstruction of main road 62,7 km Earthworks m 3 Pavement of main road m 2 Pavement of road junctions m 2 Renovation of viaducts 7 pcs Construction of a bridge 1 pcs Renovation of bridges 5 pcs Renovation of pedestrian tunnels 2 pcs Renovation of cattle creep 1 pcs Safety barriers m Wildlife fence m Road lighting m Culverts and drainage pipes m

12 PAVEMENT CONSTRUCTION Main road Milling of existing pavement cm TAB 16 II cm KMA cm (8,75) / TAB 12 I - 4 cm (2,75) Geogrid Road junctions Milling of existing pavement cm PAB 16 TAB 12 I - 4 cm

13 CROSS-SECTION TYPE II

14 CROSS-SECTION TYPE III

15 CROSS-SECTION TYPE IV

16 EARTHWORKS Widening of embankment (junctions, U-turns) Reconstruction of embankment - km 26,1 - 30,9 - excavation of unsuitable material - excavation of peat m3m3 - demolition of concrete slabs - filling of new material - geotextile

17 DRAINAGE SYSTEM Cleaning of existing ditches Excavation of new ditches Cleaning and repairing of existing drainage system Construction of new drainage system Cleaning of existing culverts Construction of new culverts

18 RENOVATION OF VIADUCTS AND BRIDGES Construction of new waterproofing layer Replacement of expansion joints Repair of all deteriorated concrete on the bridge (footways) and other exposed surfaces Replacement of guardrails Repair of handrails Reinforcement of slopes New asphalt concrete layer on bridge deck

19 JÄGALA VIADUCT

20 JÄGALA II BRIDGE

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22 JÄGALA II Length x 15 m; L = 53,6 m Width - 15,6 m Type - 3-span continuous steel concrete composite bridge

23 TRAFFIC SAFETY Improvement of road junctions Elimination of entrances, U-turns, technologic turns Improvement of visibility Renovation of pedestrian tunnels - 2 pcs Sidewalks - 2,7 km Guard-rails - 30 km Road lightning - 3,5 km Road marking - rumble strips

24 ENVIRONMENTAL MITIGATION MEASURES Wildlife passages Wildlife fence Wildlife bank tracks Noise barriers Warning signs Hedge Top soiling and grass seeding Roadside clearing and crubbing

25 Wildlife passage

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27 Wildlife bank track under the Valgejõe bridge

28 “Image of elk” on pavement (6m x 1,5m)

29 Dwellings at the roadside where a noise barrier will be constructed

30 BUDGET Main works Supervision Contingencies Total


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