Tranche 1 Outputs:
The outputs financed under Tranche 1 will be: (i) 40% of the 430 kilometer of two-lane national Highlands Highway from Lae Nadzab airport to Kagamuga airport in Mt Hagen, is rehabilitated, upgraded, and effectively maintained as required to be safe, climate- and disaster resilient for all users;
(ii) road safety increased and sustained for pedestrians and vehicle passengers on the Highlands Highway; and
(iii) program management and institutional capacity improved to deliver the Investment Program and sustain its benefits.
Main Works:
The SHHIP – tranche 1 carries out main activities of rehabilitation works, improvement works, maintenance services and emergency works, which include following activities:
• Clearing the right-of-way;
• Removal of unsuitable materials: Trimming and shaping the existing road formation and subgrade to form a road bed; Excavating and removing unsuitable material from soft spots and backfill, including providing and placing a geo-fabric filter layer where directed; Excavating, trimming and shaping drainage ditches and forming cut batters; Excavating and disposing of overburden from borrowpits; Hauling and disposing of all unsuitable material; Cleaning and removing debris as well as silt from inlets and outlets of silted-up or blocked existing culverts;
• Storage of materials: Stockpiling excavated material for embankment construction; Hauling material for construction of capping layer, sub-base and base course;
• Production of materials: Extracting, crushing, grading and testing material for capping layer, sub-base, base course and concrete;
• Construction of pavement: Patching the potholes, filling the cracks, and repairing shoulder edge breaks; Constructing and testing of embankments to form the road bed; Pavement surfacing with bituminous layers; Reinstating existing gabion walls; Refurbishment of existing bridge superstructure and abutments; Road strengthening works; Road resealing works; Replacement of cross drainswith conduits of larger section; Installation of new lining of side drains; Installation of new slope protection works; Repair of distressed parts of the road, restoringthem to a higher standard of durability and safety;
• Construction of culvert: Replacing culverts including headwalls, curtain walls, aprons and associated works; Reinstating culverts’ chambers and inlets/outlets parts;
• Construction of public works: Constructing market areas; Constructing 1000 m roadside pedestrian footpaths connecting school entrance; Providing the road with bus stops aside the road carriageway; Providing social infrastructure(laundry facility, gender segregated toilets);
• Installation of safety devices: Installing new road safety furniture including guardrails, traffic regulatory and control signs, culvert marker posts, milestones, and fenders at bridge sites.