Attachment F - Geotechnical Report

                             PROPOSED COMMERCIAL & RESIDENTIAL DEVELOPMENT
                             30-32 DOONELLA ST, TEWANTIN

1.0      INTRODUCTION
This report details the results of a geotechnical investigation undertaken for a proposed commercial and
residential development at 30-32 Doonella Street, Tewantin. The investigation was performed by Tectonic for
Doonella Street Unit Trust in accordance with Proposal P16469-Rev1, dated 16 May 2018. Archicology are
the project architects and Alta Projects are the structural engineers.

The investigation comprised drilling of boreholes at five locations, together with in situ strength testing at
borehole locations, and geotechnical laboratory analyses. This report summarises the results of the
investigation and provides geotechnical recommendations regarding the design of earthworks, footings, site
classification, and retaining walls.

2.0      PROPOSED DEVELOPMENT
Design drawings prepared by Archicology (Ref. Project 16416, Drawing Nos. SD 01 to SD18) indicate that
the proposed development will comprise two to three level commercial and residential buildings,
incorporating a partially in-ground basement for carparking. Excavations for the basement will range up to
about 3 m deep, extending to within about 2 m to 5 m of existing boundaries, with retaining walls proposed to
support cut batters.

Text Figure 1 shows the proposed layout and a section through the building.




Text Figure 1: Proposed layout plan (upper) and section through building (lower)


22 June 2018
Report No. 18151-001-Rev0                              1