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.

For more complex layout please contact ACO.

Project Name*

Project City*

State*

Name*

Phone*

Email*

Company*

Country*

CATCHMENT HYDRAULICS

Catchment area*

Length (m)

Width (m)

Rainfall intensity*

mm/hr

Design storm - ARI

years

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)

Is trench central to catchment width?

If no, give details:

Left (m)

Right (m)

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 the trench drain run same length as catchment area length?

If no, give details:

A (m)

B (m)

Is there a depth restriction?

If yes, give details:

(mm)

Expected grate load class:

Preferred grate style (user/legislative requirement)

Please select

Does the discharge need to be stored for detention, retention or infiltration?

OTHER INFORMATION

Upload File: (max 6MB)

Feedback required from ACO:Trench hydraulic flow informationGrating intake performaceLayout schedule and parts listSurface water storage solutionsPlease contact me to discuss

Notes:

ADDITIONAL RUNS

Run 2

Catchment area

Length (m)

Width (m)

Rainfall intensity

mm/hr

Design storm - ARI

years

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)

Is trench central to catchment width?

If no:

Left (m)

Right (m)

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 the trench drain run same length as catchment area length?

If no:

A (m)

B (m)

Is there a depth restriction?

If yes:

(mm)

Expected grate load class:

Preferred grate style (user/legislative requirement)

Please select

Does the discharge need to be stored for detention, retention or infiltration?

Run 3

Catchment area

Length (m)

Width (m)

Rainfall intensity

mm/hr

Design storm - ARI

years

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)

Is trench central to catchment width?

If no:

Left (m)

Right (m)

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 the trench drain run same length as catchment area length?

If no:

A (m)

B (m)

Is there a depth restriction?

If yes:

(mm)

Expected grate load class:

Preferred grate style (user/legislative requirement)

Please select

Does the discharge need to be stored for detention, retention or infiltration?

Run 4

Catchment area

Length (m)

Width (m)

Rainfall intensity

mm/hr

Design storm - ARI

years

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)

Is trench central to catchment width?

If no:

Left (m)

Right (m)

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 the trench drain run same length as catchment area length?

If no:

A (m)

B (m)

Is there a depth restriction?

If yes:

(mm)

Expected grate load class:

Preferred grate style (user/legislative requirement)

Please select

Does the discharge need to be stored for detention, retention or infiltration?

Run 5

Catchment area

Length (m)

Width (m)

Rainfall intensity

mm/hr

Design storm - ARI

years

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)

Is trench central to catchment width?

If no:

Left (m)

Right (m)

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 the trench drain run same length as catchment area length?

If no:

A (m)

B (m)

Is there a depth restriction?

If yes:

(mm)

Expected grate load class:

Preferred grate style (user/legislative requirement)

Please select

Does the discharge need to be stored for detention, retention or infiltration?

Stay in touch with ACO for ongoing project support, CPDs, online calculators etc…

Request design assistance

CATCHMENT HYDRAULICS

TRENCH DRAIN INFORMATION

OTHER INFORMATION

ADDITIONAL RUNS

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