SCG 31131(L2).pdf

       With regards to Item 10c of the previous information request, we are satisfied that the proposed driveway
       grades satisfy both AS2890.1-2004 and AS2890.2-2022 (Off Street Commercial Vehicle Parking). Detailed
       design will be completed and submitted as part of the Operational Works application.

       We don’t consider the 1 in 6.6 grade in a small section of pedestrian access paths as being unsafe.
       However a series of steps could be included if Council deemed it necessary which can be conditioned a an
       Operational Works required work.

Item 9: Fill Levels
“The plans indicate the areas to be filled, but the figures presented on the plans are the same for existing and
finished ground levels.”

       Response

       SCG Drg. No. 31131 C3.1 provides numerous spoil levels across cut/fill levels of the points.

Item 10: Stormwater
“The proposed bioretention/detention basin is surrounded by retaining walls and sits approximately 2.3m below
the adjacent pavement levels. This creates significant difficulties for access to and maintenance of the basin.”

       Response

       Refer to updated Stormwater Management Plan SCG Drg. No. 31131 – SW1.1 Rev A, which includes a
       1.5m wide maintenance access ramp from the driveway down to the proposed bio retention/detention basin
       area.

Item 11: Stormwater
“A significant portion of the site is proposed to be discharged to Eumundi-Noosa Rd even though none of the
existing site falls in this direction. An assessment of the impact of this change on the drainage in Eumundi-Noosa
Rd is required.”

       Response

       We have assessed the capacity of the Eumundi Noosa Rd Kerb and channel in accordance with Section
       7.4 of QUDM 2017 & Aust Roads Guide to Road Design Part 5A Section 5.3, using a 3m flow width for the
       10 Yr ARI (10% AEP). We confirm the Kerb and channel can safely convey the proposed post development
       10% AEP catchment flows in addition to the existing catchment whist maintaining a 4m wide flood-free
       trafficable lane on Eumundi Noosa Rd.

Item 12: Stormwater
“The SWMP does not include allowance for Climate change.”

       Response

       Refer to section 6.5 of the revised Stormwater Management Plan (No. 31131(SWMP).RevA) which now
       includes climate change considerations for the 1% AEP event at year 2100. A copy of the revised plan is
       included.

If you require any further information, please do not hesitate to contact our office.

Yours faithfully




SEAN RICHARDSON – RPEQ 5835
For and on behalf of
SCG CONSULTING ENGINEERS

Enc



SCG Consulting Engineers                              Page 2 of 2                                SCG Ref: 31131(L2)


[OCR of page images]
With regards to Item 10c of the previous information request, we are satisfied that the proposed driveway
grades satisfy both AS2890.1-2004 and AS2890.2-2022 (Off Street Commercial Vehicle Parking). Detailed
design will be completed and submitted as part of the Operational Works application.

We don’t consider the 1 in 6.6 grade in a small section of pedestrian access paths as being unsafe.
However a series of steps could be included if Council deemed it necessary which can be conditioned a an
Operational Works required work.

Item 9: Fill Levels
“The plans indicate the areas to be filled, but the figures presented on the plans are the same for existing and
finished ground levels.”

Response
SCG Drg. No. 31131 C3.1 provides numerous spoil levels across cut/fill levels of the points.

Item 10: Stormwater
“The proposed bioretention/detention basin is surrounded by retaining walls and sits approximately 2.3m below
the adjacent pavement levels. This creates significant difficulties for access to and maintenance of the basin.”

Response

Refer to updated Stormwater Management Plan SCG Drg. No. 31131 — SW1.1 Rev A, which includes a
1.5m wide maintenance access ramp from the driveway down to the proposed bio retention/detention basin
area.

Item 11: Stormwater

‘A significant portion of the site is proposed to be discharged to Eumundi-Noosa Rd even though none of the
existing site falls in this direction. An assessment of the impact of this change on the drainage in Eumundi-Noosa
Rd is required.”

Response

We have assessed the capacity of the Eumundi Noosa Rd Kerb and channel in accordance with Section
7.4 of QUDM 2017 & Aust Roads Guide to Road Design Part 5A Section 5.3, using a 3m flow width for the
10 Yr ARI (10% AEP). We confirm the Kerb and channel can safely convey the proposed post development
10% AEP catchment flows in addition to the existing catchment whist maintaining a 4m wide flood-free
trafficable lane on Eumundi Noosa Rd.

Item 12: Stormwater
“The SWMP does not include allowance for Climate change.”

Response

Refer to section 6.5 of the revised Stormwater Management Plan (No. 31131(SWMP).RevA) which now
includes climate change considerations for the 1% AEP event at year 2100. A copy of the revised plan is
included.

If you require any further information, please do not hesitate to contact our office.

Yours faithfully

SEAN RICHARDSON - RPEQ 5835
For and on behalf of
SCG CONSULTING ENGINEERS

Enc

SCG Consulting Engineers Page 2 of 2 SCG Ref: 31131(L2)