Request design assistance

The following information is required to provide a recommendation for a simple run of trench drainage. On receipt of this form, ACO will provide a recommendation with hydraulic calculations where necessary.

If you need assistance filling out this form, please contact ACO.

Project Name*

Project City*

State*

First Name*

Last Name*

Phone*

Email*

Company*

Country*

CATCHMENT HYDRAULICS

Run length*

(m)

Catchment area*

(m2)

Design storm - AEP

percentage (%)

Rainfall intensity*

mm/hr

Catchment surface type

Please select

Runoff coefficient

Impermeability factor (0 - 1)

Required discharge

If known (L/s)

Longitudinal groundslope - fall

Catchment slope - crossfall (left)

Catchment slope - crossfall (right)

Additional discharge into trench

such as downpipes, machinery etc. (L/s)

Position along trench

From upstream end (m)

Temporary ponding allowed?

TRENCH DRAIN INFORMATION

Outlet type

(Please select)

Outlet position

Outlet pipe size diameter:

(if known) mm

Is there a depth restriction?

If yes, give details:

(mm)

Expected grate load class:

Preferred grate style (user/legislative requirement)

Please select

Application

(please select)

Notes:

OTHER INFORMATION

Please attached relevant plans, long sections and cross sections of the drains: (max 6MB)

Feedback required from ACO:Trench hydraulic flow informationGrating intake performanceSurface water storage solutionsLayout schedule and parts listPlease contact me to discuss

ADDITIONAL RUNS

Run 2

Run length

(m)

Catchment area

(m2)

Design storm - AEP

percentage (%)

Rainfall intensity

mm/hr

Catchment surface type

Please select

Runoff coefficient

Impermeability factor (0 - 1)

Required discharge

If known (L/s)

Longitudinal groundslope - fall

Catchment slope - crossfall (left)

Catchment slope - crossfall (right)

Additional discharge into trench

such as downpipes, machinery etc. (L/s)

Position along trench

From upstream end (m)

Temporary ponding allowed?

Outlet type

(Please select)

Outlet position

Outlet pipe diameter:

(if known) mm

Is there a depth restriction?

If yes:

(mm)

Expected grate load class:

Preferred grate style (user/legislative requirement)

Please select

Application

(please select)

Notes:

Run 3

Run length

(m)

Catchment area

(m2)

Design storm - AEP

percentage (%)

Rainfall intensity

mm/hr

Catchment surface type

Please select

Runoff coefficient

Impermeability factor (0 - 1)

Required discharge

If known (L/s)

Longitudinal groundslope - fall

Catchment slope - crossfall (left)

Catchment slope - crossfall (right)

Additional discharge into trench

such as downpipes, machinery etc. (L/s)

Position along trench

From upstream end (m)

Temporary ponding allowed?

Outlet type

(Please select)

Outlet position

Outlet pipe diameter:

(if known) mm

Is there a depth restriction?

If yes:

(mm)

Expected grate load class:

Preferred grate style (user/legislative requirement)

Please select

Application:

(please select)

Notes:

Run 4

Run length

(m)

Catchment area

(m2)

Design storm - AEP

percentage (%)

Rainfall intensity

mm/hr

Catchment surface type

Please select

Runoff coefficient

Impermeability factor (0 - 1)

Required discharge

If known (L/s)

Longitudinal groundslope - fall

Catchment slope - crossfall (left)

Catchment slope - crossfall (right)

Additional discharge into trench

such as downpipes, machinery etc. (L/s)

Position along trench

From upstream end (m)

Temporary ponding allowed?

Outlet type

(Please select)

Outlet position

Outlet pipe diameter:

(if known) mm

Is there a depth restriction?

If yes:

(mm)

Expected grate load class:

Preferred grate style (user/legislative requirement)

Please select

Application:

(please select)

Notes:

Run 5

Run length

(m)

Catchment area

(m2)

Design storm - AEP

percentage (%)

Rainfall intensity

mm/hr

Catchment surface type

Please select

Runoff coefficient

Impermeability factor (0 - 1)

Required discharge

If known (L/s)

Longitudinal groundslope - fall

Catchment slope - crossfall (left)

Catchment slope - crossfall (right)

Additional discharge into trench

such as downpipes, machinery etc. (L/s)

Position along trench

From upstream end (m)

Temporary ponding allowed?

Outlet type

(Please select)

Outlet position

Outlet pipe diameter:

(if known) mm

Is there a depth restriction?

If yes:

(mm)

Expected grate load class:

Preferred grate style (user/legislative requirement)

Please select

Application

(please select)

Notes:

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