Overall route ugie to langeni

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DEPARTMENT OF ROADS AND TRANSPORT
UGIE TO LANGENI ROAD UPGRADING PROJECT
PTB5-03/04-2162
PHASE 2 NCEMBU PLATEAU TO LANGENI DEPARTMENT
TRANSPORT NATIONAL TECHNICAL STEERING
COMMITTEE SITE VISIT 12 NOVEMBER 2008
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Locality Plan
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A BRIEF BACKGROUND TO THE PROJECT

• Initially community driven
• Discussions with Local Authorities and Department
  Roads and Transport
• Priority Project
• Integrated 5 Year Transport Infrastructure Plan
• Provincial Growth and Development Plan

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PURPOSE OF THE ROUTE

• Improving access to markets
• Providing a more direct route
• Increasing production at Sawmills due to
  increased
• aforestation
• Improving the quality of life of communities
• Part of the Maclear Ugie-Mthatha corridor
• Complementary to Kei-East London Rail upgrade
  project

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FEASIBILITY STUDY/ ALTERNATIVE ROUTES

• Routes to Langeni Sawmill/ new PG Bison Mill
  gt60 km longer

• Alternative routes similar geology

• Nov 2001 Jan 2003

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Phase 2 - Ncembu Plateau to Langeni Sawmill

• HHO Africa / Camdekon JV appointed 4 July 2003
  for Preliminary and Detail Design
• Dept Roads and Public Works and Dept Transport
  wanted to go to tender November 2003, extended to
  February 2004
• Fast track project Phase 1 and 2 required to be
  completed simultaneously Dec 2006 requirement
  of Dept Roads Public Works and Dept Transport
• 1st Preliminary Design Drilling Investigation
  Contract completed December 2003
• Survey completed January 2004

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UGIE TO LANGENI AND R61

• 3 Separate Phases for design and construction.
• Phase 1 Ugie to Nyibeni Village 32,7 km
• Phase 2 Nyibeni Village to Langeni Sawmill
  15,3 km
• Phase 3 Langeni Sawmill to R61 (Tabase)
  17,3 km
• 65,3 km

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TYPICAL PLATEAU TERRAIN
Several wetlands and marshes
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NCEMBU PLATEAU km 34-38
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NYIBENI VILLAGE GABION RETAINING WALL AND
CASCADES/ OUTLET
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TRIP DOWN THE MOUNTAIN PASS SECTION OF THE ROUTE
The following slides show the types of vegetation
encountered along the route as well as the
steepness of the escarpment section, from the
Plateau to the foothills
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SV_42030_D
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SV_42660_D
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NCEMBU TO LANGENI

• The Planning and design of 17,8km of new road
  through greenfields sections of plateau
  grasslands, a steep escarpment, indigenous
  forests and pine plantations.

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NCEMBU TO LANGENI

• This is a view of the route finally chosen to
  move from the plateau down the escarpment to the
  foothills below

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SV_42900_D
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SV_43320_D
Indigenous vegetation and steep crossfall
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SV_43570_D
Indigenous and Commercial Forests km 43,1 to km
47,1 except firebreak
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COMPLEX SECTION OF ROUTE FROM THE ESCARPMENT TO
LANGENI SAWMILL
V 1
Original alignment
V 2
B 2
Final Alignment
B 1
Indigenous and Commercial Forests km 43,1 km
47,1
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SV 42 560
3o m cutting
Typical Rock Cutting Cross Section
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LONGITUDINAL SECTION

• As a result of ground constraints, and to reduce
  environmental impact, the proposed route will
  have steep slopes in certain sections

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SV 43 000
Reinforced Earth Retaining Wall 1
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ENVIRONMENTAL CONDITIONS

• Extensive input and requirements from DWAF/
  DEAET/ Langeni in scoping and EIA stages
• Botanical Inventory of road footprint through all
  indigenous forests.
• Restricted access to indigenous forests during
  investigation stages.
• Full time ECO
• Indigenous tree harvesting requirements
• ROD 21/06/2004
• DWAF Indigenous Forestry Licence

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Typical area recovered plants
km 42 to km 43,5

• 2 ha Protea Grassland

• 3 ha Indigenous Forests

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Nursery

• 3000 bulbs and ferns

• 4000 indigenous tree saplings

• 40 000 Scilla Natalensis (Natal Lily)
  transplanted

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Indigenous Timber Harvesting
km 43,2

• 1000 m3 harvested and auctioned

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RAINFALL SUMMARY
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RAINFALL SUMMARY
Typical Example Worked 54,5 days of potential
125, or 44 of available working time
Similar period October 2007 March 2008
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Weather
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Haul Road Complete
August 2005
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Excessive Rain Haul Road Apr06
km 42,8
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DOLERITE CUTTINGS
Weathered Vertical and Horizontal Columnar
Jointing
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VIEW KM 42,4 TO 42,8 WITH CATTLE TRACK
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CUT IN DOLERITIC TALUS

• 3 - 15 metre deep doleritic talus
• Instability of cut slopes
• Reinforced Earth retaining wall
• Low shear strength of soil matrix
• Tie back anchors into underlying bedrock

km 42,5 km 43,3
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REINFORCED EARTH WALL 1 TERRANAILING
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CAVITIES IN-SITU MATERIAL/ TALUS
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TERRANAILING
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TERRANAILING/ GUNITE PROTECTION/ CONCRETE PLINTHS
Wall 1 km 42,7
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CONNECTING TERRATREL, PARAWEB TERRANAILING
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WALL 1B CUT STABILISATION
km 42,6 42,8
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WALL 1A 1B GUNITING / TERRANAILING
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STORMWATER DIVERSION BERM
Degraded Wetland above cuttings km 42,6 42,8
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REINFORCED EARTH WALL 1
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VIADUCT 1 CROSS SECTION
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GENERAL ACCESS VIA BOARDWALK
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VIADUCT 1
Blondin Cableway/ Leap frogged Crane Comparison
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VIADUCT 1 SPAN 7 BEAMS
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VIADUCT 1 SPANS 7 6, BEAM YARDS, LAUNCHING
GIRDER
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VIADUCT 1 SPAN 6, 5 4 / INDIGENOUS FOREST /
BOARDWALK ACCESS
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VIADUCT 2
Original Viaduct 2 with Caissons
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VIADUCT 2
Modified Viaduct 2
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VIADUCT 2 UGIE ABUTMENT, LANGENI EXCAVATION
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SLIP AT KM 44,6
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KM 44,6 CUTTING STABILISATION 90 COMPLETE
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WALL 4
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TYPICAL OUTLET STRUCTURE
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REINFORCED EARTH WALL 8 HIGHEST (18M)
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CONSTRUCTION SEQUENCE
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CONSTRUCTION SEQUENCE
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CONSTRUCTION SEQUENCE
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PAVING TEAM CONCRETE ROAD
Typical team - preparation 15
persons - paving 20 persons Anticipated
person days to concrete pavement completion
- 20 000 person days
CONCRETE VOLUMES 14 000m3 concrete road 37
500m3 structures, side drains
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AERIAL VIEW OF TEAM
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COMPLETED SECTIONS CONCRETE ROAD
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NEW MILL AT UGIE
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MOUNTAIN PASS
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VIADUCT 1 TO PHASE 3
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CONTRACT PROCUREMENT

• Contractor LM3 Joint Venture Rumdel,
  LikThemba, Mametse, Themcon, Makhuba Misela
  Construction
• Works Value R293 563 014-19

Project Participation Goals
Cumulative labour 277 000 person days (538
persons from local communities To end contract
estimate 300 000 person days Training R750
000.00 including Eco-tourism (16 persons)
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CATTLE TRACK AND FOOTPATH ONLY PREVIOUS ACCESS
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THANK YOU