Hydrology Modeling Capabilities

1.

EPA SWMM v5.0

2.

Importing XPSWMM™ v10.52 and earlier models

3.

Importing EPA SWMM v4.4 and earlier models

4.

Exporting XPSWMM models

5.

NRCS (SCS) TR-55

6.

NRCS (SCS) TR-20

7.

US Army Corps of Engineers HEC-1

8.

Rational Method

9.

Modified Rational Method

10.

DeKalb Rational Method

11.

Santa Barbara Unit Hydrograph Method

12.

Maricopa & Pima Counties (Arizona) Papadakis-Kazan Methodology

13.

Harris County (Texas) Methodology

14.

LA County MODRAT2 and F0601

15.

CUHP Colorado Urban Hydrograph Procedure

16.

WWHM Western Washington Hydrology Model

17.

HEC-HMS

18.

Sacramento County Method

19.

Automatic composite SCS curve number computation based upon land use and soil groups

20.

Automatic composite runoff coefficient computation based upon land use and soil groups

21.

Automatic SCS TOC computation

22.

Delmarva Unit Hydrograph

23.

Adjust hydrograph shape factor, select from pre-defined shape factors or assign user-defined shape factor

24.

Long-term continuous simulation

25.

Dry weather flow (DWF), rainfall derived inflow and infiltration (RDII), direct inflow and/or rainfall-runoff modeling

26.

Water quality pollutant modeling (land-use based build-up and wash-off, including treatment)

27.

Snow accumulation and melting

28.

Rainfall interception from depression storage

29.

Interflow between groundwater and surface drainage

30.

Antecedent moisture condition accounting

Time of Concentration Methods

31.

Carter

32.

Eagleson

33.

Kirpich

34.

FAA

35.

Papadakis-Kazan

36.

SCS TR-55

37.

User-defined

Rational Method IDF Capabilities

38.

IDF table (direct entry of values for different return periods)

39.

BDE method

40.

Polynomial method

41.

Direct intensity entry

42.

Library support of IDF data

Design Storms

43.

Automated Rainfall Designer

44.

USA and Canadian Design Storms

45.

Rainfall for entire USA at county and metro region level

Hydraulic Modeling Capabilities

46.

Subcritical, critical, and supercritical flow regimes

47.

Gravity and pressurized (surcharged) flow

48.

Flow reversals

49.

Dual drainage (major/minor) system modeling, including dynamic interaction (i.e., stormwater sewer network and city streets as separate but connected conveyance pathways)

50.

Flow splits and combines

51.

Branched, dendritic, and looped systems

52.

Tailwater submergence & backwater effects

53.

Interconnected storage structures

54.

Kinematic wave routing

55.

St. Venant hydrodynamic routing

56.

Open (natural) channels and sewer pipes

57.

Account for various head losses, including entrance losses, exit losses, friction losses, bend losses, and drop losses

58.

Accounts for storm sewers and sanitary sewers, open channels, streams, bridge and culverts, curb and gutter inlets, detention ponds and outlet structures, flooding overflows

59.

Model valves, inflatable rubber dams, bendable weirs, and other complex flow control structures

60.

Continuous and/or single event modeling

61.

Irregular shaped pipes and culverts

62.

Transverse weir simulations

63.

Side flow weir simulations

64.

Account for minor losses

65.

Complex bypass and outfall analysis

66.

Adverse sloped pipes and channels

Detention Ponds

67.

Automatically compares pre- and post-developed hydrology conditions

68.

Computes storage volume required to meet peak flow reduction objectives

69.

Pond infiltration (exfiltration) support

70.

Handles single pond, multiple ponds, and interconnected ponds

71.

Handles variable tailwater conditions, including tailwater submergence effects

72.

Models ponds with multiple outlets and flow diversions

73.

Pond defined by area or volume

74.

Surface evaporation

Other Storage Structures

75.

Retention facility (wet ponds & infiltration basins)

76.

Extended detention wet ponds

77.

Extended detention dry ponds

78.

On-site, underground stormwater retention/detention

79.

Shallow marshes & constructed wetlands

80.

Bioswales & rain gardens

81.

Underground large diameter interconnected storage pipes and arched pipes

82.

Database of standard underground storage chambers from leading manufacturers

Highway Drainage Capabilities

83.

Interconnected curb and gutter storm drain inlets

84.

US Federal Highway Administration (FHWA) HEC-22 computations included

85.

Account for on sag and on grade conditions

86.

Compute gutter spread, depth of flow, inlet efficiency, inlet spacing, velocity of flow

87.

Model dual conveyance pathways (storm sewer and curb-gutter flow)

88.

Database of standard curb openings and grated inlets from major manufacturers and municipalities

89.

Agency-ready drainage reports

Water Quality Capabilities

90.

Account for rain gardens, green roofs, rain barrels, bioswales, dry detention ponds, wet ponds, retention ponds, wetlands, and more

91.

Model particulate settling, water cleanup, water quality best management practices (BMP), and TMDL (Total Maximum Daily Loads)

92.

Can incorporate best management practices (BMP) directly within the model

93.

Dry-weather pollutant buildup over different land uses

94.

Direct contribution of rainfall deposition

95.

Pollutant washoff from specific land uses during storm events

96.

Reduction in dry-weather buildup due to street cleaning

97.

Reduction in washoff load due to BMPs

98.

Entry of dry weather sanitary flows and user-specified external inflows at any point in the drainage system

99.

Routing of water quality constituents through the drainage system

100.

Reduction in constituent concentration through treatment in storage units or by natural processes in pipes and channels

101.

Lookup database for typical pollutant buildup and washoff values

102.

Combined sewer (sanitary and stormwater) modeling

Sanitary Sewer Capabilities

103.

Use for master planning, rehabilitation, new design, and include future growth

104.

Model looped networks, flow splits, combines, overflows, and storage capacity

105.

Analyze sanitary or combined sewer systems

106.

Include manholes, inlets, sewer networks, pumps, storage structures, control structures, inverted siphons, overflow diversions, relief sewers, and other elements within a single model

107.

Construct network sewer models from AutoCAD and MicroStation drawings, or GIS geodatabases

108.

Analyze sanitary load peaking factors and loading patterns

109.

Create custom system sanitary loadings

110.

Distribute loadings by area, count, population, etc.

111.

Multiple diurnal patterns

112.

Model both gravity and pressure sewer systems

113.

Include force mains, lift stations, and pumps

114.

Gate and valve simulations

115.

Check compliance with capacity regulations

116.

Automate pump design and selection

117.

Real time controls

118.

Check CMOM (Capacity, Management, Operation, and Maintenance) capacity requirements for compliance

119.

Find and fix sewer bottlenecks, optimize control rules, reduce overflow occurrences, perform capacity analyses, etc.

120.

Regulate flow to treatment facilities by determining storage within the sewer system and design storage structures

121.

Perform CSO (combined sewer overflows) and SSO (sanitary sewer overflows) mitigation studies while accounting for RDII (rainfall derived inflows and infiltration)

122.

Dry weather flow (DWF), rainfall derived inflow and infiltration (RDII), direct inflow and/or rainfall-runoff modeling

Model Size Restrictions

123.

Maximum number of network node elements

124.

Maximum number of non-visual model entities (i.e. raingages, pollutants, land uses, real-time control rules, etc.)

125.

Scalable database engine supports fast editing of extremely large models and data sets

Quality Assurance/Quality Control (QA/QC)

126.

Input data model checking

127.

Analysis model checking

128.

Network connectivity checking

129.

Toll-free technical support & modeling support

130.

Remote log-in by technical support using Citrix GoToAssist® to see model problem(s) in "real time"

Import & Export Support

131.

EPA SWMM v5.0 file import and export

132.

EPA SWMM v4.4 file import

133.

ESRI GIS shapefile import and export

134.

XPSWMM file import and export

135.

AutoCAD 2008/2009 DWG import

136.

AutoCAD DXF export

137.

AutoCAD Land Desktop and Civil 3D support via LandXML

AutoCAD Support

138.

Operate directly within Civil3D 2008 / 2009 as native Civil 3D application (StormNET for Civil 3D)

139.

AutoCAD Land Desktop and Civil 3D support via LandXML

140.

Update a pipe size, invert elevation, sump elevation, or rim elevation, and have the updated change automatically reflect in the AutoCAD drawing

141.

AutoCAD 2008/2009 DWG import

142.

AutoCAD DXF export

143.

AutoCAD layer control

144.

Export plan-profile sheets to AutoCAD

ArcGIS Support

145.

Direct support for ArcGIS 9.x geodatabases

146.

Importing of ArcGIS network data

147.

Exporting of ArcGIS network data

148.

Tight integration with ArcGIS

User Interface Capabilities

149.

Table grid editing of all applicable visual and non-visual model objects

150.

Graphical plot of model element hydraulic response (weir & orifice plots)

151.

Summary of model results in input dialogs

152.

Graphical editing of network from plan view or profile view

153.

Tabbed interface to switch between different views

154.

Polygon selection of elements

155.

Global editing of elements

156.

Automatic assignment of element properties, including pipe invert elevations

157.

Copying of elements and element properties

158.

Work in either elevation or depth mode

159.

Support US and Metric (SI) units

160.

Ability to use background layers

161.

Network aerial plan view

162.

Network coordinate scaling, elevation adjustments, and transformations

163.

Support for different element sizes and line widths

164.

Element searching, querying, and filtering

165.

Data entry error checking

166.

Error detention and consistency checks

167.

Ability to compare multiple scenario results

168.

Color coding of problem elements

169.

Printing plan view to user-defined scale

170.

Display of flooding nodes on plan view

171.

Display of surcharged nodes (bolted manhole covers) on plan view

172.

Display of surcharged (pressurized) pipes on plan view

173.

Time series plots

174.

Profile plots

175.

Copy/paste with Microsoft Office

General Functionalities

176.

Support for Windows Vista

177.

Network Server Version

178.

Merge two or more separate models into a single model, allowing a large project to be broken up into separate sub-projects in order to expedite the model setup and development with additional staff

179.

Reload previous analysis simulation results

Profile Plot (Long Sections)

180.

Export to AutoCAD, Microsoft Word and Excel

181.

Plots and animates the hydraulic grade line (HGL)

182.

Displays input profile plots (i.e. before model run) and provides full editing capabilities for model development or "what if" scenarios

183.

Edit network elements directly from profile plot view

184.

Allows graphical drag-and-drop editing of entities in the profile plot (i.e., conduit invert elevations, junction sump elevations, rim elevations, etc.)

185.

Displays and animates observed head/depth data along with calculated head

186.

Full zoom and pan control

187.

Save profile plot paths for later recall

188.

Shortest path calculation and selection for profile plot

189.

Input and output summary table at the bottom of the profile plot

Graphical Time Series Plots

190.

Sophisticated graphical output (open multiple results files for comparisons)

191.

Output summary table at the bottom of plot

192.

Multiple time-series plots can be generated for various network elements, such as pipe flow, velocity, pollutant concentration, and loading.

Reporting Capabilities

193.

Microsoft Excel reporting

194.

Microsoft Word reporting

195.

Spatial reporting, including plotting analysis results directly on the plan and profile views, showing peak flows, depths, flood elevations, maximum velocities, etc.

196.

Animated plan view and profile plots illustrate how additional storage can attenuate overflows and to determine system bottlenecks

197.

Color-code network plan view based upon pipe size, flow rate, velocity, hydraulic grade, water quality concentration, or any other attribute

198.

Directional flow arrows plotted alongside network pipes to show the flow direction at any simulation time step

199.

Composite curve number computational reports

200.

Time of concentration computational reports

201.

Surcharging of pipes reported

202.

Overflow of manholes reported

203.

Detention pond design report

204.

Highway storm drain inlet report

Training and Technical Support

205.

Toll-free technical support

206.

Modeling support available

207.

Remote tech support sessions using Citrix GoToAssist® to observe modeling questions & concerns

208.

Extensive user documentation and technical reference manual

209.

Online tutorial videos

YES

203

35

47

59

124

108

NO

6

162

150

137

76

96

PARTIAL

0

11

10

11

7

5

SCORE

97.13

19.47

25.12

31.16

61.59

52.87