Lithgow City Council requires the services of suitably qualified and experienced Consultants to undertake a comprehensive inspection and survey regime for the existing stormwater infrastructure contained within Lithgow, Wallerawang and Portland, and to update Council’s current GIS mapping layers.

Council requires the project to be completed no later than 20 June 2025

Lithgow City Council’s data for stormwater assets is currently of poor quality, a SHP file of Council’s existing GIS layers can be provided to Consultants upon request (please email leanne.kearney@lithgow.nsw.gov.au for layers to be provided).

The required scope of works expected of the Consultant is to:

• Undertake field survey / inspection of stormwater infrastructure in Lithgow, Wallerawang and Portland areas

• Provide updated and accurate GIS data (in SHP file format) with updated attribute tables for data listed in Section 2.3 including:

o Location and Coordinates (in mapping layer),

o Attribute class / type: outlet/inlet, pit, pipe, junction

o Levels, and pipe diameters

o Pipe type, construction materials and pipe condition

o Stormwater treatment systems / type (GPT, trashrack, WSUD) if identified

Exclusions from this project are:

• Maintenance of any pits, pipe and junctions within the network

The requirements of the Consultant for this project include:

• Attendance at a pre-contract meeting via MS Teams scheduled for 11.00am on Friday, 2 May 2025 to discuss specific project responsibilities;

• Traffic management as required;

• Lifting of pit lids / grates to inspect and assess the network with minimal assistance from Council’s staff. Council assistance can be arranged within 24 hours for adhoc lifting where there is a potential for damage of the lid / grate / network to occur, or after all reasonable attempts have been made by the Consultant, the lid / grate is not able to be lifted