Government · 2022 · Lagos State, Nigeria
Arterial Road & Drainage
Reconstruction of 9 km of arterial carriageway with a new reinforced concrete drainage spine and box culvert crossings.
Engineering Challenges
- C1Flood-prone corridor with a 1-in-50-year storm requirement
- C2Traffic maintained on a critical commuter route
- C3Extensive uncharted underground services
Solutions
- S1Hydraulically modelled drainage spine with cast box culverts
- S2Half-width staged construction with signalised diversions
- S3Ground-penetrating radar survey before every excavation
Gallery
On site.
Results
Measured outcomes.
9 km
Carriageway reconstructed
1:50
Storm design standard
Zero
Utility strikes recorded
