Kaysone Phomvihane

Sub projects

The location of Kaysone Phomvihane, in relation to the EWEC

  • Improvement of drainage structures and installation of wastewater treatment plant
  • Improvement (widening) of three urban roads incl. provision of drainage
  • Solid waste management and establishment of materials recovery facility
  • Mekong River embankment protection
  • Expansion of dry port logistics facilities

Kaysone Phomvihane is a border town that serves as a major agricultural processing
center and an emerging prime destination for manufacturing industries and business
enterprises. Its strategic location across the Mekong River from the town of Mukdahan in
Thailand offers considerable opportunities for increased economic activities and investments.
With the increasing cross border trading and commercial exchanges, the town is emerging as a
dynamic economic center for public and private sector investments.
The rapid growth in urban population and expansion of the town center generated
complex environmental and social challenges. Given limited resources, local authorities are
having difficulties addressing the growing demands for essential urban infrastructure and
respond to the requirements of an urbanizing local economy.

  • Wastewater Treatment Plant
    Three WWTPs will be constructed as indicated in section 3 above. Earthen, aerated
    wastewater treatment plants will be constructed in which mechanical mixing introduces air for
    BOD removal and to suspend solids. Performance of the plants will depend on aeration. Three
    cell systems are recommended. Agitation must be sufficient to suspend all solids. Detention
    time: 1.5 to <3days. The design for BOD removal is based on first- order kinetics and the
    complete mix hydraulics model.
    An aerated pond system would have supplemental air sources to provide dissolved
    oxygen accomplished with surface mechanical aerators and mixers, or by various forms of
    diffusers supplied with compressed air from mechanical blowers or compressors (Figure 8). For
    equal sized ponds, the aerated pond would provide the best treatment due to the mechanical
    addition of oxygen, and for a given organic loading, would require the least amount of land area
    The land where proposed for the wastewater treatment plant is empty no construction
    structures have been on this area due to the flood occurring in wet season. The construction of
    Aerated Wastewater Treatment Plant Pond is on excavation. The intake/interceptor has an
    elevation of about 129.00MSL, but the area where proposed wastewater treatment pond is
    about 130.0 MSL. The top dike would be at elevation between 132.00MSL to avoid potential
  • Urban Roads in Kaysone Phomvihane
    – This component Kaysone Phomvihane subproject will involve widening and re-sealing
    with asphalt Kaysone Road and Santhiphap Road providing four lanes with improvements to
    roadside drainage structures, installation of a median divider, tree planting and street lighting
    system. The upgrading of Fa Ngum is to include provision of a one-way system with a uniform
    width of 10 m (widening required on Fa Ngum 1). Tree planting will be undertaken on both
    sides of the roads along with conversion of the empty lot into a park.
    – The total length of the roads upgrades is 12.9 km (Table 5). The upgraded roads will be
    wide enough to accommodate an asphalt concrete sealed carriageway and footpaths/covered
    drains (Figures 10 and 11).
    Table 5. Road upgrades in Kaysone
    Road Length (km) Proposed width (m)
    Kaysone 6.7 25
    Santhiphap 2.6 20.2
    Fa Ngum 1 2.8 10
    Fa Ngum 2 0.88 10
    Total 12.9
    Kaysone Phomvihane Road will be upgraded to a total cross-section width of 25 m to
    provide four traffic lanes sealed with asphalt concrete (1 x 3.5m and 1 x 3.8m on each side) plus
    a 1.5m wide shoulder to be used by motorbikes, installation of a 3.4m wide reinforced concrete
    island median for safety, footpath/covered drain on each side of the road (2m wide) which is
    sufficient width to re-install water supply pipes, telecommunication and electricity cables. Street
    furniture will be included, this will be located in the median island; traffic signage, installation of
    street lighting and tree and grass/shrub planting.
    – Santhiphap Road will be upgraded to a total cross-section width of 20.2 m and
    improved to a similar standard as described above providing four lanes without the shoulder
    extension for motorbikes and a narrower median island (1.2 m in width); and
    – At km 0.68 on Fa Ngum Road-1, the system will become one-way around the proposed
    park area. The road will be upgraded to an asphalt concrete pavement and a 2 x 2m wide
    footpath will be provided. Installation of the drainage system, culverts, street lighting and tree
    planting will be according to MPWT specifications (2006)


  1. Rational
  2. Investment plan for 2015, 2020 and 2030

1. Rational

  • The investment plan for Kaysone district is incorporated in the Five Year Development and Master Plan of the Kaysone Phomvihane
  • This Plan was prepared with the assistance of the Provincial Department of Public Works and Transport (PDPWT) and is envisioned to address the development needs of an increasing population. The Plan intends to promote Kaysone Phomvihane as an attractive town for private sector investment.
  • The investment plan is made on the basis of available development plans and consensus resulting from a number of consultative meetings between EA, IA, related district authorities and PPTA team. It referred to the cost indicated for each subproject.
  • The Investment Plan of Kaysone Phomvihane incorporates the priority urban infrastructures that are intended to achieve its development vision of becoming an attractive and competitive town by 2020.
  • The essential urban environment infrastructure includes urban roads, bridges and drainage structures, solid waste management, wastewater and sewerage system and flood control.
  • On the other hand, the investment plan for urban economic infrastructure relates to revenue generating projects that are also intended to improve the delivery of urban services.

2. Investment plan for 2015, 2020 and 2030

  • Short term Investment plan for 2015
  • Medium term Investment plan for 2020
  • Long term Investment plan for 2030