RCF project code DFJ

Dangote Quay Lekki, Charlie & Delta

412 m of quay

Client
Dangote Oil Refining Company Limited
Role
Design and construction
Location
Dangote Quays, Ibeju-Lekki, Lagos
Status
Completed
Duration
16 months
Dates
May 2019 to Aug 2020
Rigs on site
5
Services
Marine WorksDeep Foundations and Shoring

A 412 m bulk commodities quay for post-Panamax vessels, with 14.5 m of water alongside and two berths, C and D, worked at a time.

Scope

RCF designed and built Dangote Quay Lekki, Charlie & Delta, a bulk commodities wharf at the Dangote Quays in Ibeju-Lekki, between May 2019 and August 2020. It was designed as an "inner port" jetty. The quay is 412 m long, with a 52.6 m wide deck on piles, a secant wall at the back and a 10 m wide approach slab. It has 14.5 m of water alongside and takes post-Panamax vessels at two berths, C and D, at a time. It is the Dangote fertiliser jetty, built to ship fertiliser out from the Dangote plant.

Design

The deck carries a surcharge of 15 t/m² and a punch load of 60 t/m², enough for a portable ship loader for bulk cargo. Bollards are rated to 100 t, and rubber cone fenders take vessels from 30,000 to 60,000 DWT. A six-inch fire-fighting line runs the full length of the quay, with hydrants and two international shore connections.

The civil works follow BS 6349 for maritime structures, Eurocode 2 for concrete, Eurocode 7 for geotechnical design and BS 8004 for foundations. The fenders follow PIANC and BS 6349-4:2014, and the horn bollards BS 5950 and EN 1993-1-8.

In Numbers

1,601 piles in total, 70,000 m³ of concrete, 7,000 t of reinforcement and 5 rigs on site.

Scope, as Stated

  • Design and construction of an "inner port" jetty concept
  • Two berths (C and D) handled at a time
  • Concrete secant pile wall
  • Bearing piles and contiguous piles
  • Concrete platforms
  • Fender and bollard system
  • Deck on piles with a secant wall at the back
  • 10 m wide approach slab
  • Six-inch fire-fighting line along the full quay, with hydrants and two international shore connections

In Numbers

  • 248

    CFA piles

    Diameter
    800 mm
    Length
    21 m
    For
    Quay
  • 784

    Bored piles

    Diameter
    1,200 and 1,500 mm
    Length
    31 m
    For
    Quay
  • 569

    Secant piles

    Diameter
    880 mm
    Length
    18 m
    For
    Quay
Quay length
412m
Deck width
52.6m
Water depth, CD
14.5m
Deck surcharge
15t/m²
Punch load
60t/m²
Bollard capacity
100t
Berths, C and D
2
Concrete
70,000m³
Reinforcement
7,000t