E20 TALLINN - NARVARECONSTRUCTION

MAARDU - VALGEJÕE

MAIN OBJECTIVE

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

MAIN PARAMETERS• pavement - 11,5 m (1 + 2 x 3,75 + 3)

• embankment - 10 - 12,25 m

• road - 35,5 - 37,5 m

• central reserve ~ 11 m

TRAFFIC VOLUME

2003 2020

• Jägala km 26,4 7270 9880

• Kuusalu km 40,3 6040 8640

• Liiapeksi km 52,0 4550 6500

TRAFFIC SAFETY

• 2000 - 2003 - 42 traffic accidents

• 5 people killed

• 59 injured

• walking along the road - 13

• collision with animals - 7

• dark time - 54% of the accidents

PAVEMENT CONDITION LAST CONSTRUCTED

• Section 1 - 1982 - 1988

• Section 2 - 1962 - 1988

• Section 3 - 1989 - 1990

• Section 4 - 1979

• Section 5 - 1980

PAVEMENT CONDITION

IRI ruts defects bearing capacity

Section 1 4,76 13,4 1 - 5% 345

Section 2 5,99 14,4 2 - 8% 390

Section 3 4,13 13,5 1 - 8% 335

Section 4 5,85 10,5 2 - 5% 315

Section 5 6,51 13,5 3 - 7% 299

Critical value 3,5 - 8 % 230

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

MAIN INDICATORS• Reconstruction of main road 62,7 km

• Earthworks 305 000 m3

• Pavement of main road 820 000 m2

• Pavement of road junctions 98 000 m2

• 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 30 000 m

• Wildlife fence 5 500 m

• Road lighting 3 500 m

• Culverts and drainage pipes 4 600 m

PAVEMENT CONSTRUCTION

Main road

• Milling of existing pavement - 4-5 cm

• TAB 16 II - 4-5 cm

• KMA 12 - 4 cm (8,75) / TAB 12 I - 4 cm (2,75)

• Geogrid

Road junctions

• Milling of existing pavement - 4-5 cm

• PAB 16

• TAB 12 I - 4 cm

CONNECTION OF DRAINAGE WITH GULLY /

PIKIDRENAAZI ÜHENDAMINE RESTKAEVUGA

CROSS-SECTION OF CROSS-PIPEPÕIKTORU RISTLÕIGE

A-A

CROSS-SECTION TYPE II

Sections with rainwater pipe/ Sademeveetoruga lõigud

STA/ PK 245+44-248+05, 259+30-265+37, 270+15-273+60

Sections with partly punched pipe / Poolperforeeritud toruga lõigud

STA/ PK 248+05-259+30, 265+37-270+15, 273+60-275+70

CROSS-SECTION TYPE III

M 1:50

DESIGNED CROSS-SECTION / PROJEKTEERITUD RISTLÕIGE

CROSS-SECTION TYPE IV

EARTHWORKS

• Widening of embankment (junctions, U-turns)

• Reconstruction of embankment - km 26,1 - 30,9

- excavation of unsuitable material

- excavation of peat - 11 000 m3

- demolition of concrete slabs

- filling of new material

- geotextile

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

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

JÄGALA VIADUCT

JÄGALA II BRIDGE

JÄGALA II BRIDGE

JÄGALA II

Length - 18 + 2 x 15 m; L = 53,6 m

Width - 15,6 m

Type - 3-span continuous steel concrete

composite bridge

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

ENVIRONMENTAL MITIGATION MEASURES

• Wildlife passages

• Wildlife fence

• Wildlife bank tracks

• Noise barriers

• Warning signs

• Hedge

• Top soiling and grass seeding

• Roadside clearing and crubbing

Wildlife passage

Wildlife bank track under the Valgejõe bridge

“Image of elk” on pavement

(6m x 1,5m)

Dwellings at the roadside where

a noise barrier will be constructed

BUDGET

Main works 22 000 000

Supervision 1 100 000

Contingencies 2 200 000

Total 25 300 000