Moody Civil & Pipe successfully constructed a 9m deep sewage pumping station and associated works in an area with acid sulphate soils and a high groundwater table.

PROJECT OVERVIEWConstruction of a 3.5m dia. 9m deep PE lined sewage pumping station in acid sulphate soils near Maryvale Rd, Mango Hill. This included construction of 50m of 2.1m dia. RC Pipe Emergency Storage Tank; 1045m of DN300 and 344m of DN375 Gravity Sewers; 1600m of DN400 PN16 PE100 Sewer Rising Main; associated electrical works, switchboard building; access road works and earth works, construction of block wall surrounding the pumping station. The truck water main consisted of 270m of DN300 dia PN16 PVC water main and a 180m DN400 PE100 PN16 directional drill underneath Freshwater Creek.
CLIENTMoreton Bay Regional Council. Superintendent: MWH Australia Pty Ltd
LOCATIONMaryvale Road, Mango Hill, QLD
INDUSTRY SECTORPublic utilities (urban)
INFRASTRUCTUREWater pipelines, Gravity sewers, Sewer rising main, Sewage pump station & emergency storage
CONTRACT VALUE$1.9 million
DATESApril 2010 to January 2011

SCOPE OF SERVICES PROVIDEDPlanning and design
• Option analysis
• Design of portions of work
• Service location
Project Management
• Management of subcontractors
(Microtunnelling, Directional drilling, Traffic control, Electrical)
• Risk and budget costing
• Stakeholder and community liaison Environmental Management
• Translocation of protected flora
• Weed control
• Acid sulphate soils management
• Fauna management
• Siltation and erosion control
• Environmental management during construction in environmentally sensitive areas		Installation & Construction
• Pipe, pump & fittings supply (structures)
• SewerPro/SewerMax gravity sewer installation
• PVC & PE pipeline installation
• Hydrostatic & vacuum testing
• Deep shaft excavation
• Groundwater dewatering
• Sewage bypass pumping
• Sewer manhole construction
• Valve pit construction
• Poly welding (Butt, Electrofusion)
• Electrical conduit & pit installation
Civil & Mechanical Works
• Clearing and grubbing
• Civil & mechanical works for sewage pumping station
• Live connection work
CHALLENGES• Excavation in Acid Sulphate Soils (ASS) with a high groundwater table.
• Pipeline Installation within the “NO‐GO Zone” of Power Poles greater than 3m in depth.
• Construction of pipelines and manholes in
“Salt Couch” areas (a protected flora). Moody developed translocation plans for its temporary removal and replacement.
• Due to the environmental constraints on the project, 420m of the gravity sewer and rising main had to be redesigned and realigned, as approval could not be obtained for open‐cut installation. Moody worked closely with Unitywater to develop options for construction of both of these. Several options were generated, estimated and risk ranked. Both pipelines were installed within a 5m easement.		• During January 2011, the Brisbane area sustained heavy rain and flooding. As the majority of this project was in low lying areas, flooding occurred across the project site and halted production for 3 weeks.
• Some of the pipeline was located within an Energex transmission line power easement. During the project construction, Energex were duplicating the existing transmission lines and towers. Moody worked closely with the transmission line principal contractor Transfield and Energex to schedule works to avoid conflicts and allow continual access along the easement for Transfield construction personnel.
• Working 8m deep in the road reserve of Maryvale Road, and management of excavated spoil.
ACHIEVEMENTS• Successful translocation and replanting of Salt Couch and reduction of construction footprint to minimise the amount of Salt Couch that was disturbed.
• Restarting works safely following flooding in January 2011. No environmental harm occurred as a direct result of Moody construction sites, due to the erosion and sediment control put in place prior to this flood event. No rework was required either as we had prepared the sites for wet weather.
• Successful installation of 200m of DN600 gravity sewer, and 180m of DN400 PE water main, underneath Freshwater Creek without “frac‐outs”. This included an 8m deep launch shaft and management of PE pipe strings through residential areas, which involved liaison with developers.		• Working with the community regarding full road closures, working through weekends to reduce the duration of road closures.
• Saving trees that were important to residents, within the road reserve on the pipeline alignment, through use of Moody’s Horizontal Boring attachment.
• Working with Energex to obtain approval on construction methods to reduce the risk to the integrity of Energex assets. This involved development and manufacture of a horizontal boring attachment for our excavator, as well as design and RPEQ sign‐off of excavation & backfill methodologies.
• Successful completion of the project in approved timelines, allowing a sewage pumping station upstream to be decommissioned without delay.

Recommended Posts

Finland Road Trunk Water Mains Replacement
Kenya to Chinchilla Weir Pipeline
Brisbane Airport – Dryandra Road Works

51 Comments

  1. Want to get the 77bet app? Easy peasy over at 77betdownload. Worth the download – makes everything easier than playing in the browser. Check out 77betdownload.

  2. Jllodicom… not my favorite to be honest, but their game selection is decent. Might be worth a peek if you’re bored. You make the call, at jllodicom.

  3. Heard about kk33gamedownload. I’d go check it out and see if it works for you. Happy gaming! See for yourself right here kk33gamedownload.

  4. Okay, 68winbetvn… not gonna lie, I was a little skeptical at first, but ended up having a good time! Give it a shot, you might be surprised! 68winbetvn

  5. QH88live is where it’s at, guys! The live games are pretty awesome. Solid connection and chill dealers. qh88live

  14. Appwildbet777… Downloaded it on a whim. It’s an app. Pretty sure it does what you think it will do. Here is the link to appwildbet777

  15. Hey, just tried out f68game and it’s actually pretty entertaining! The games are decent and the site runs smoothly. Giving it a thumbs up! Check it out here: f68game

  16. Just had a session at ww888slot. Not bad, not bad at all! Good variety of slots to keep you entertained. Give it a spin if you’re bored! Visit: ww888slot

  18. Bj38live is pretty cool. Nice interface and smooth game operation. You can check it out here, bj38live

  19. Yo, game8us, what’s the deal? It’s got some good games, I’ll give it that. If you’re bored and need something to kill time, swing by. You might be surprised. More info here: game8us.

  20. Alright, gonna be real, I haven’t spent a *ton* of time on vui123vip. But from what I’ve seen, it’s alright. Maybe give it a shot if you’re looking for something new. Link here vui123vip.

  21. Yo, anyone hanging out at pub77? I’m cruising for a new online hangout. Is it lively? Good community? Decent games? Let me know your thoughts. I’m always looking for a new spot to chill and test my luck. Here’s the link I found: pub77

  22. Hey gamers, has anyone explored rrs88 recently? I am trying to find quality places to spend my leisure time, and want to know if it’s safe to play. What’s the deal with rrs88? Someone give me some intel. Give it a whirl here: rrs88

  23. Has anyone downloaded the utbetapp? I prefer playing on the go, so a good mobile app is a MUST. Is it user-friendly? Does it drain your battery? Give me the lowdown! Found them here: utbetapp

  24. furosemide

    furosemide

  26. vibramycin

    vibramycin

  31. Check it peeps! Finally found a new spot where the action is hot! You can get payouts real fast. The spot is Pearl123bbr: pearl123bbr

  32. Alright, sports fans, bk8sports is my go-to for betting. They’ve got everything from football to MMA. It’s solid. bk8sports

  33. Dude, 8777sxgame is where it’s at for a good time. Some pretty interesting games there. Definitely worth a look. 8777sxgame

  35. 777tayapub is the real deal! I’ve been looking for something fresh and this hits the spot. Try 777tayapub; you might just find your new fave!

  36. Looking for some fresh games to download. Think 02gamedownload might have what I need. Fingers crossed for some hidden gems! Always on the hunt for new titles. Score some downloads here 02gamedownload

  37. Time to log in and see what’s happening on jw7login. Hopefully no server issues this time. Ready to spin those reels and chase those jackpots. Log in now: jw7login

Add a Comment

Your email address will not be published. Required fields are marked *