Project 03 / Riyadh 2026Weekly reports R9, R10

Qiddiya Speed Park

Roads, drainage
& civil infrastructure

Sunset trench excavation along a fenced corridor, worker digging in trench, UNIMAC wheel loader with three workers beside it, stacked pavers, conduits and barriers, Qiddiya-logo building behind
Site record / 26 Aug

External infrastructure around the Speed Park buildings: stormwater lines and channels, a new bus access road, a speed hump, walkways and landscaping.

  • External works
  • COOP trainee
Illustrative render, shared site model

Numbers

7/28

Day testing exposure

Source: Training summary

1

Bus access road

Source: Weekly report 9, 20 August
Figure notes

  • 7 / 28 Day testing exposure

    Concrete test specimens prepared on site for compressive-strength testing; exposure to the 7-day and 28-day testing cycle.

    Source: Training summary

  • 1 Bus access road

    Existing interlock cut and removed in front of the Qiddiya building; base prepared for the new road between 18 and 20 August.

    Source: Weekly report 9, 20 August

Role

  • Supervised: 5
  • Monitored: 3
  • SupervisedOngoing stormwater drainage worksSource: Weekly report 9, 16 August

    Supervised and followed up the ongoing stormwater drainage works; observed the installation and preparation of drainage channels along the road and followed up the associated concrete works.

  • SupervisedInterlock cleaning and joint fillingSource: Weekly report 9, 18 August

    Supervised cleaning of the interlock pavement and filling of the joints; monitored the cutting and removal of existing interlock in front of the Qiddiya building for a dedicated bus access road, and followed its excavation and preparation.

  • SupervisedSpeed hump and drainage crossing at the entranceSource: Weekly report 9, 19 August

    Supervised construction of a speed hump and a small drainage crossing at the entrance; inspected the fresh concrete and monitored preparation of concrete test specimens for quality control; supervised pouring, levelling and finishing; verified polyethylene sheets beneath the concrete.

  • SupervisedBus road base and storm line excavationSource: Weekly report 9, 20 August

    Supervised base preparation for the bus access road and excavation for the storm line; followed barricading around active work areas.

  • SupervisedLandscaping works and kerb stone finishingSource: Weekly report 10, 25 August

    Supervised landscaping activities by the landscaping subcontractor, checking the areas for underground cables and utilities before excavation; followed base compaction beneath interlock; supervised kerb stone finishing (sanding and cleaning).

  • MonitoredLayout and levels; unsecured cones and delineatorsSource: Weekly report 10, 24 August

    Checked layout corners, alignment and levels before works; identified unsecured traffic cones and delineators along the road and followed their installation to prepare the road for vehicles.

  • MonitoredDrainage channels, grates and wheel stop levelsSource: Weekly report 10, 26 August

    Inspected the stormwater drainage system including channels and grates; checked wheel stop installation, alignment and levels against the parking layout.

  • MonitoredRemaining drainage sections and bus lane alignmentSource: Weekly report 10, 27 August

    Completed the remaining stormwater drainage works and followed closing of the required sections with concrete; followed bus lane preparation and alignment.

Project context

Qiddiya Speed Park is the wider project in which the parking packages sit. In August 2026 the training moved to its external works: stormwater drainage lines, channels and grates, a dedicated bus access road cut through existing interlock in front of the Qiddiya building, a speed hump, pedestrian walkways and landscaping areas.

Alhussain worked within this construction environment as a trainee under the site team. He did not design or manage the Qiddiya project.

Site inspection and follow-up: supervising specific activities assigned by the site team, inspecting drainage and concrete works, checking levels and alignment, and monitoring safety around open excavations and live traffic.

Sequence

  1. Night view of a surveyor at a total station on a tripod in the roadway between barricades, rows of light poles receding
    01

    Layout and levels

    • Corners and alignment of the site layout checked; required levels and elevations checked before execution.

      Source: Weekly report 10, 24 August
  2. Narrow corridor between mesh fences printed with Qiddiya branding along building wall, excavated soil piles, no-parking sign, shade canopy beyond
    02

    Excavation

    • Existing interlock cut and removed in front of the Qiddiya building; excavation for the new bus access road.

      Source: Weekly report 9, 18 August

    • Storm line excavation with barricading of open areas.

      Source: Weekly report 9, 20 August

    • Landscaping pits excavated after checking for underground electrical cables and utilities.

      Source: Weekly report 10, 26 August
  3. Concrete pump boom extended over the trench with formwork beside the tent; workers at a distance, UNIMAC-branded barriers, paved parking at left
    03

    Stormwater drainage

    • Drainage channels installed along the road with associated concrete works.

      Source: Weekly report 9, 16 August

    • Small drainage crossing constructed at the entrance to facilitate stormwater drainage.

      Source: Weekly report 9, 19 August

    • Drainage channels and grates inspected.

      Source: Weekly report 10, 26 August

    • Remaining drainage sections closed with concrete.

      Source: Weekly report 10, 27 August
  4. No site record
    04

    Bus road base

    • Base preparation for the bus access road after interlock removal; site cleaning before the next stage.

      Source: Weekly report 9, 20 August

    • Base preparation and compaction beneath new interlock areas.

      Source: Weekly report 10, 25 August
  5. Wide view of interlock-paved parking with concrete wheel stops laid in rows, mobile light tower, two distant workers, drainage grate, buildings and street lighting behind
    05

    Kerbs, interlock and wheel stops

    • Interlock cleaned and joints filled.

      Source: Weekly report 9, 18 August

    • Kerb stone finishing: surfaces sanded and cleaned.

      Source: Weekly report 10, 25 August

    • Wheel stops installed, aligned and levelled to the parking layout.

      Source: Weekly report 10, 26 August
  6. Shade-sail canopy over sapling holding area, two crouched workers in hi-vis, truck delivering saplings, cars and buildings behind at sunset
    06

    Landscaping

    • Tree-planting preparation in the landscaping areas by the landscaping subcontractor.

      Source: Weekly report 10, 25 August

    • Soil preparation and levelling in the landscaping areas.

      Source: Weekly report 10, 26 August
  7. Night road with delineators, shade canopies over parking, lit buildings, parked pickups at right
    07

    Speed hump, walkway, traffic safety

    • Speed hump constructed; fresh concrete inspected and test specimens prepared; polyethylene sheet verified under the slab.

      Source: Weekly report 9, 19 August

    • Pedestrian walkway levelled, membrane installed, concrete placed, levelled and finished.

      Source: Weekly report 10, 27 August

    • Traffic cones and delineators secured along the road before opening it to vehicles.

      Source: Weekly report 10, 24 August
  8. No site record
    08

    Bus lane preparation

    • Bus lane alignment prepared; a kerb edge measured for a tapered transition to improve bus turning.

      Source: Weekly report 10, 27 August

Site records

29 photos / 16 Aug to 27 Aug

Takeaways

  1. Drainage is built and closed section by section.

  2. Specimen preparation is routine site QA/QC.

  3. Barricades and cones are part of the engineering.

Full record

Observations from site

  • Polyethylene sheets under fresh concrete stop the soil absorbing water from the mix; their presence was verified before pouring.

    Source: Weekly report 9, 19 August

  • Open excavation areas were checked and barricaded alongside the works themselves.

    Source: Weekly report 9, 19 August

  • Before landscaping excavation, the areas were checked for existing underground electrical cables and utilities.

    Source: Weekly report 10, 26 August

  • Small geometry decisions matter on live roads: a kerb edge needed a tapered transition so buses could turn smoothly.

    Source: Weekly report 10, 27 August

What I learned

  1. 01

    Stormwater drainage is built and closed section by section, with concrete works interleaved with excavation.

  2. 02

    Fresh concrete inspection and specimen preparation are routine site QA/QC, not laboratory events.

  3. 03

    External works happen next to traffic: barricades, cones and pedestrian routes are part of the engineering.

Next / Project 01

Parking 12

From execution to handover