1. How does a community maintain a storm
water infrastructure database in ArcGIS
9.3 using the ESRI Local Government
Data Model?
Adam Pooler, GISP
Senior GIS Analyst
Stantec
Troy Sova
GIS Analyst
Stantec
2013 Ohio GIS Conference
September 12, 1:00 pm | Columbus Marriott Northwest | Dublin, Ohio

2. Outline Project Area Multi-Step Process – Data Collection
Integration into Data Model
Geometric Network and QA/QC
Conclusion
Questions

3. City of Springdale (yellow outline)

4. PROJECT AREA (red outline)

5. Multiple Phases Phase 1 Phase 2 Phase 3
Stormwater 9.3 File Geodatabase
Phase 1
Pre ESRI Data Model
Data Collection
Phase 2
ESRI Data Model
Phase 3
QA/QC
Geometric Network
Local Gov. Data Model

6. Multi-Step Process Step 1
Scan Paper As-Built Drawings into digital TIF format using a Large Format Plotter/Scanner

7. Step 2a
Geo-Reference TIF files using Imagery and Street Centerlines within ArcMap’s Georeferencing Toolbar

8. Step 2b
Georeference TIF Files multiple times if drawing sheets have more than one plan layout.

9. Step 3
Digitize Storm Features (Catchbasins/Inlets, Outfalls, Gravity Mains, Underdrains, Manholes)

10. Step 3
Digitize Storm Features (Catchbasins/Inlets, Outfalls, Gravity Mains, Underdrains, Manholes)
Gravity
Main
Manhole
Inlet
Outfall
*Source – Google

11. Step 4a
Collect any attributes associated with the Storm Features from the plan drawings (e.g. Pipe size and Type of Construction)

12. Step 4a
Collect any attributes associated with the Storm Features from the plan drawings (e.g. Pipe size and Type of Construction)
Pipe Size
Type of
Construction

13. Step 4b
Collect any attributes from the profile drawings (e.g. Invert Elevations, Slope)

14. Step 4b
Collect any attributes from the profile drawings (e.g. Invert Elevations, Slope)
Pipe Size
Slope
Invert
Elevations

15. Step 5
QA/QC attribute table for each storm feature class, checking for missing attributes or inconsistencies.
Check for large gaps or congested areas in the data
Missing subdivision as-built drawings
New Construction
Use model’s Domains to attribute features where possible.

16. ESRI’s Local Government Data Model
ArcGIS for Local Government
“ArcGIS for Local Government includes a series of maps and apps designed to work together across various departments.” Source: ESRI
Reduces the complexity of implementing and managing GIS in a local government setting.
Model supports multiple data schemas.
Land
Records
Address
Elections
Planning and
Development
Local Government
Data Model
Facilities /
Campus
Public
Safety
Infrastructure
Public
Works

17. Data Schema - Stormwater

18. Problem – Using a ArcGIS 10 Data Model within ArcGIS 9.3 Software
Data model contains relationships setup in 10.X, which do not communicate with 9.3.
Tools developed specifically for Data Model only accessible in 10.X
Attribute Assistant
Infrastructure Abandon Models
Infrastructure Desktop Construction Tools
Infrastructure Editing
Infrastructure Reporting

19. Data Model Tools
Attribute Assistant – Advanced capabilities to calculate attribute data.
Four ArcMap Commands and one ArcMap Toolbar
Infrastructure Desktop Construction Tools
Four new point construction tools and one new line construction tool.
Infrastructure Desktop Toolbars
Infrastructure Editing
Infrastructure Reporting

20. Setting Up a Geometric Network
Step 1a & b – Network Name, Snapping Tolerance & Features
Step 2a & b –Enable Values and Select Roles for each Feature Class

21. Setting Up a Geometric Network
Step 3 – Add Weights to Network
Modify Sources & Sinks after Creation
Step 4 – Review Results

22. Quality Assurance/Quality Control
Setup a Geometric Network and Update Connectivity between Storm Features.
FYI – The Geometric Network Tool only works with an Editor or ArcInfo License
Compare features collected to As-Built drawings (features and attributes)

23. Lessons Learned
Update Domains prior to data entry as much as possible.
Use an unmanaged Raster Catalog.
Start Project with Data Model and Geometric Network

24. Conclusion
ESRI’s Local Government Model Schema works with older versions of ArcGIS without having to upgrade.
Converting As-Built Drawings to Digital Format takes time up front but is a more manageable system in the long run.

25. Questions? Adam Pooler, GISP Adam.Pooler@stantec.com Troy Sova