City of Norwood Payneham & · SA Gov
Open

Tender: Lambert Road Stormwater Outfall Upgrade – Royston Park

Released 5 days ago

Closes17 Nov 2026
Likely valueEstimate$200K to $750KInflation adjusted
LocationRoyston Park, SA
AgencyCity of Norwood Payneham &
SourceSA Gov
CategoryWater & Sanitation
22 days leftCloses Tue, 17 Nov 2026

City of Norwood Payneham & St Peters is seeking a supplier for civil construction delivery of the Lambert Road Drainage Outfall Upgrade at Lambert Road, Royston Park. The project will improve hydraulic performance, mitigate scour and erosion, enhance the long-term durability of the asset and accommodate future stormwater drainage network upgrades. Works include demolition and removal of existing outfall infrastructure; excavation and temporary works including excavation support and dewatering where required; construction of a new reinforced concrete stormwater outfall and a reinforced concrete stilling basin with associated structural elements; installation of stormwater drainage connections and associated civil works; construction of scour protection and riverbank stabilisation measures; implementation of environmental protection measures including erosion and sediment control; protection of significant and regulated River Red Gum trees in accordance with the Arboricultural Impact Assessment; landscaping, rehabilitation and reinstatement of disturbed areas; and testing, commissioning and submission of as-constructed documentation.

This tender is suited to civil contractors experienced in reinforced concrete stormwater structures, stilling basins, scour protection, riverbank stabilisation and environmental controls. Key considerations include working within riverbank environments requiring dewatering and excavation support, strict erosion and sediment control, and adherence to the Arboricultural Impact Assessment for protection of regulated River Red Gum trees, plus delivery of testing, commissioning and as-constructed documentation.

Tender breakdown

From 13 documents
drainage/outfall constructionLump sum
TodayBriefing28 OctCloses17 NovAward1 DecStart16 DecComplete21 Jun
Watch out for9

Mandatory attendance at the site briefing on 28 Oct 2026 — failure to attend makes tender Non-Conforming

Strict fixed-price lump sum: include all dewatering, shoring, ground protection, hold points, testing, temporary works and arborist/geotechnical supervision costs or no variation allowed

Two bank guarantees of 2.5% each required before commencement — allow cost and timing

Documents13

Grouped by what each file is for

Tender documents1The main request: what they want, how to respond and the rules.
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Pricing1Where your prices and rates go.
Drawings, plans and photos4Site plans, design drawings, CAD files and photos.
Contract and conditions1The contract you would sign and its terms.
Reports and background2Studies, reports and plans to read for context.

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