Current status of the transafrican highway in Kenya

UNITED NATIONS

ECONOMIC AND SOCIAL COUNCIL

Distr.

Lir

22 IT ii

S jpt-r-mb

Original:

AKS/81

,.r 1972

bnglish

ECONOMIC t-OMMISSICN FOR A

Meeting to .istHrmine assistance from the Industrialized countries for the feasibility studies of the Transafrican highway

Addis Abaha, 9-12 October 1972

CURRENT STATUS OF THii TRANS AFRICAN aIG^/AY IN KKNTA

M72-1588

E/UN.14/TRANS/81

Introduction

This note gives the current status of the Transafrican Highway sec tion in K^nya and identifies the type of work needed to U, done.

Status of the TAB, and actions required thereon

The Trarsafrican Highway section in" Kenya, from Mombasa to Lagos, which is 919 km. in length, is bitumen surfaced. For the most ,,art, the road has a pavement width of 6,1 metres and capacity to carry 9000 lb.

(4000 kg.) wheel load. However, plans are now well underway to widen the

pavement to 7 metres and to strengthen the pavement for a 12,000 lb. (5333 kg.) wheel load, se.n Table 1.

Cost estimst^s

The total cost of the improvement works is estimated at about US

$50.3 million, sfie Table II, and this is composed of:

14.^ mil $ - for projects whose construction is in progress

or expected to start soon.

32.2 mil % - for trojects whose engineering design is under

way or planned.

3.5 mil % - for sections which need upgrading, but their improvements have been deferred for the time

being,

It should be not*d tiiat of the totel cost of $50-3 million, about

$10.1 million is for urban streets.

Construction and maintenance costs

The construction oost of a class 1 (7 metres wide) bitumen road, whicb defends on th- type of the terrain, /is aeJallSwas ' ■ ,.: .

Flat aud rolling: Ks^OjOOO/km. or US$84,000/km. &

Hilly: K£40,000/W or US$112,OOO/km.

Mountainous; K£50,000/km. or US$140,000/km.

Th? construction cost for bridges is about KX600 or US$1680 per

metre span.

The maintenance cost for a bitumen surfaced road is 13.48 sh. or US$1,89 P-^r kilometre p^r day.

a/ K£l - US$2.80 or sh 7.143 =

Fage 2

Responsibility for roads

The Ministry of Works is responsible for the construction and main tenance of roads.

In recant years the Ministry of Works has executed about 30 per.

cent of the final design of ths roads, witn the remaining 70 p*?r cert be ing done by consultants, It is understood that the Ministry intends to increase its portion of ths design work to at least 50 per cent. This, however, will require additions to the Ministry's professional staff.

Table 1

Section

Morabasa-Kwa Jomvu

Kwa Jomvu-Mariakani Mariakani-Taru

Taru-MacKinnon Hoad

Mackinnon Road-Buchuma Buchucia-Mtito Andei Mtito Andei-Sultan Bamud Sultan Hamud-71u

TJlu-Machakos Turnoff

Mschakos ~urnoff-Athi River Athi Hiver-Nairobi Airport T'Off Nairobi Airport T'Off-London Road London Road-West Lands Roundabout

Wesl L^nds Roundabout-St.Austin Rd.

St.Austin Road-Kangemi Village Kangemi Villa^e-Kabete Roundabout

Remarks

This is a dual oarria^;Way (two lane,

oiife way;. 3

This is being designed for widening , and strengthening of the pavement. &

This has been constructed to n-w de

sign standards,

Tnis is under design for widening and strengthening of ths pavement.

Construction has been completed.

Under design for widening and strength

ening of pavement,

To beresealad for strengthening and

widening of the pavement.

Pavement to be widened u.nd strengthened.

Funds already secured from IBRU.

Construction completed,

Or "ideni^ ™* strength-

pyvemert.

and strengthened

fron IBRD.

? t0/De

already

Under design for dual carriageway

Construction completed.

g for widening and strengthening

pavement being ca-riea out by Gitv

cozn

emgineering design for dual carriageway completed. Funds have not yot b-n secured, but project is included in Kenya's Development Programme.

a/ Note; By widening of pavement i\ m -, to 7 metres. pav-m~nt 1S ^'-^

By strengthening of pavement is meant incr-a™ <

capacity from 9000 lb. to 12000 lb. wheelloaT^

inorSfl sing roadway width from 6,1

.E/0N.14/TRANS/81

^e 4

Section

Kabete Roundabout-Limuru

Limuru-Uplands

Uplands-Longonot Turnoff

Longonot Turnoff-Naivasha Naivasha-Gilgil

Gilgil-Kariandus

Kariandus-Lanet

Lanet—K^kuru Bypass

Nakuru Bypass-Menengai

Menengai-Timboroa

Timboroa—iiildoret

Eldoret Bypass: Sosiaui-Leseru

Leseru-Malaba

Design for widenii-.g ar,d strengthening rf pavement and, in parts, for straight ening of alignment underway.

Preliminary engineering for new align ment complete. It is being designed for limited access

This is unaer construction. It is fi nanced by IBR'D pnd ±fc :U. expected to be.

completed in early 1974-

It is being designed' for limited access.

Preliminary engineering design is in

progress.

This is being designed for widening and strengthening of pf,vemen\j,

Feasibility report being prepared by consultants.

Final engineering design pending deci sion by Ministry of Tourism and Wildlife wi-th respect to the bird sanctuary at Lake Nakuru.-

This urban street is to be designed by the Nakuru municipality.

This needn widening arid upgrading to carry 9000 1b- wheel load. Iiowev-^r; the work has been deferrad*

This id "being widened to 7 netres and being upgraded bo oarry ?O0C 1b. wheel load- It is financed hy IBRD and 1b expected to be completed in 1^74.

These urban streetn are to be designed in conjunction witn the Hilroret munici pality.

This section, which was completed in 1971? liaE a pavement width of 6,1 me tres and carrying capacity for a 12,000 1b* wheel load. It is found adequate for the prfsent traffic.

Table II

Pa^e 5

Section

Mombasa—Kwa Jomvu Kwa Jbmvu-Mariakani Mariakani-Taru Taru-M^ckinnon Road Mackinnon Road-Buchuma

Buchuua—7oi

Voi-Mtito Andei Mtito Andei-Ki^ia

Ulu-Machakos Turnoff

Machakos Turnoff-Athi Riv-r

Athi River-Nairobi Airport Turnoff Nairobi Airport Turnoff-Bellevue Ballevue-Sigona

Sigona-Iimuru Summit Limuru Summit-Uplands UplandB-Longonot Turnoff Longonot Turnoff-Naivasha Naivasha-Lanet

Lanet—Menengai Menengai-Mau Summit Mau Summit-Timboroa Timboroa-Sosiani

Leseru-Malaba

Total

h(kr ^tegory Cost lisi.000

10 16 48 10 16

55

26 12

9 26 24 54 18 ■ 43 32 61 25 113

919

^ of classification (A,B,C,];) already secured from IBR£ ; Undor construction, financed by IBRU

Urban streets

D 0 D C D 0 t;

C U D 0 c 0

u c 0 0 B B •■- B B (■

B I)

1,632

504

2,772 4,889

^,754

l?008 1,1f6 -/

2,240

2,934 ^1

644

2,856 3,948

2,l<7

2,77

50,330

HJ/CN.14/TRANS/8:

Page 6

TRANSAFRICAN BIGuUaY Si-Jl TION IK Kit-NYA

FOR

Classification

Wh«r. considering the alignment of the Transafrioan Highway as a whole in the six territories through which it passes from Mombasa to Lagos, the sections of the Highway in each country aie classified under foul

categories (see Annex;:

Category A: Sections of the Highway which still require:

i) Feasibility studies;

ii) ijinginaering studies;

iii) Work implementation.

Category B; Sections of the HiGhway which still require:

i) bVigineering studies;

ii) Work implementation.

Category C: Sections of the Highway for which studies are completed and decisions taken, and now only.re

quire

Category D: Sections of the Highway for which work implement

ation i ?e completed.

Road surface

On the following chart, roads have been classified by their sur

face condition as follows:

—xi^..3k." Permanent

Improved

Unimproved

Distances

Distances are in kilometres,

Mockinnon Rood Toru

Kwa Jomvu Mombasa

Menengai Nokuru Lanet

Longonot turn off

Uplands Limuru Summil

Sigona

Bellevue Nairobi airport tjrn off

Mochakos turn off

■3J

CLASSIFICATION

I

Eldorel Sosiani

Petmnnent Roods

„ UGANDA

DISTANCES IN KILOMETRES

Funds already secured from IBRD Fonds deja obienus de in BIRD Undei construefion, financed by IBRD En constructions, financErnenl de lo 8IRD Urbon streets

Rues urbaines