Pipe - storm water calculations and hydraulic pipe design

Calculates quantities for excavation which includes back fill, bedding and pipe lengths by tagging chain-ages, storm water drainage design (either Colebrook-White or Mannings at each reach), the option to use the kinematic wave equation, with hydraulic analysis, calculations of meteorological coefficients from I.F.D using latitude and longitude, pit bypass by Q or area. There are definable pipes with pipe class and size (either round or box) which are assigned to each pipe reach together with the pipe co-efficient.

You can design on screen interactive graphics by moving pits and displaying existing services (or other pipe lines) with a survey active window showing location on the plan, displaying all calculations and hydraulic grade line.

Pipe can be linked to SURSUB to extract surface levels, transfer catchments areas , surface grades, pipe bends at pits with option of automatically calculating of the pipe K factors and plot other services. In SURSUB it will automatically locate pipe pit names for plotting in plan.

You can enter/edit/calculate catchments on one graphics screen with P.V. survey window and road data.


Pipe surface data can be linked into the road design data to adjust pipe surfaces and pit grades as road designs are changed and plot other pipe lines on long sections. Pipe surface can also be entered by chainage and level. Pit chainage can also be imported directly from survey lots and areas from catchment lots.

You can calculate down stream pit surcharge and pipe capacities with a backwater H.G.L. check. There is an option to hold or limit H.G.L. at pits.



Data can entered in the survey data base. eg pit names, area types and coefficients linked to the pipe lots with pit chainages and catchments lots with areas can be transferred to Pipe eg

Chainages, catchments with areas, coefficients , flow lengths and slopes.



The Plotting facility (or CAD file) will produce road long sections (option with 3 offsets), kerb returns, cross sections with option to on other surface or interpolated surface from model (manual or automatic positioning), typical sections, drainage long section, sewer long sections (with a second surface), catchment chart, hydraulic , design charts and Survey Plans all on the one sheet. There are notes, symbols and title blocks. Sections are calculated when plotted. This makes plot window files flexible to data changes.


Extensive interface to other data formats.

Among the companies using LANDMARK are