Akinyemi, F.O. 
  
5 PROPOSED ROUTE 
The corridor was selected based on the impact magnitude map given certain environmental and socio-economic 
criteria including: 
- Avoidance of high indemnity cost areas i.e. land already covered by settlements, industrial areas and prime 
agricultural land planted to tree crops; 
- Avoidance of areas prone to gullying , forest and wildlife reserves: 
- Avoidance of human and industrial hazards such as could be posed by proximity of high tension lines to 
structures e.g. a large tank farm belonging to the Nigerian National Petroleum Company (NNPC); 
- Avoidance of multiple crossings of railways lines and thus the need for special facilities at these crossings; 
- Ultilization of the electric utility company's 330KV and 132KV lines existing right-of-way. Thus non 
duplication of such right of ways; 
> Minimization of construction costs that would be incurred if corridor traversed ravines and badlands. 
<— 158° ok 16° —z 
TP 
450m. 
400 
350 
  
300 [ 
  
  
  
  
  
  
  
  
  
  
  
250 CE L i 1 1 1 + 1 1 i 1 1 1 L 1 i 1 1 1 1 1 1 
0 1 2 3 4 3 6 7 8 9 10 11km 
GEOLOGY CRETACEOUS (UPPER - SENONIAN) FALSE BEDDED SANDSTONES (FBS) 
SOIL ^ |SSOIL'LATERITE: SANDY SOIL LE SANDY SOIL IL!  SANDYSOL | LATERITE ! S.SOIL 
DRAINAGE WELL DRAINED WELL DRAINED "DRY VALE: WELL DRAINED 
LAND USE B B ! SMB ! 8 B 
ERODIBILITY 3 3 3 3 
SLOPECLASS| 2 3. 3 72 ] 1 2 i 1 F3 PF 2 1 3 
INDEMNITY : 0 UE Er 0 : 2 0 
IMPACT ERO! Y | LIMITED TO ERODIBILITY RN RITE HIGHLY ERODIBLE 
L = Laterite 
  
  
Figure 3: Transect Diagram of Subscene 4 
  
  
32 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXIII, Part B7. Amsterdam 2000.