Environmental Review Toolkit
Water, Wetlands, and Wildlife

Great Lakes Stormwater Workshop

Showcasing GIS Tools and Maps for Great Lakes Stormwater Workshop

Cleveland, Ohio

August 10, 2006

Stormwater, Water Quality, NPDES, Soils, Erosion, Sediment, Drainage, Impacts

Photo of a bridge spanning a river. Insets of an enbankment and two men with heavy digging equipment.

To handle these various responsibilities - we need maps

Use of GIS & Technology - How do we get there?

Technology Life Cycle to Match User Needs

Life Cycle to Match User Needs. Step One: Identify Users & User Needs > Assess data needs and scale (spacial & temporal) > Identify Available Data, Methods, Tools & also Gaps > Select existing data & tools & eval need for new ones > Design & develop data and tools & maintenance plan > Deliver solutions & tools & measuer benefits.

National Spatial Data Infrastructure


Share & Use- Free GIS Map Data at Various Levels

Diagram of three levels with up and down arrows between each. Regional & National, County/Parish, and Local Data & uses.

Free GIS Data to Download from the Web

(Great Lakes states listed, from National Spatial Data Infrastructure (NSDI))

Spatial GIS Data Online Web Clearinghouses:

NATIONWIDE SOURCES (NSDI) www.usgs.gov/ngpo/

ILLINOIS www.isgs.uiuc.edu/nsdihome/ISGSindex.html

MICHIGAN www.mcgi.state.mi.us/mgdl/

MINNESOTA www.lmic.state.mn.us/chouse/index.html

NEW YORK www.nysgis.state.ny.us/index.html

OHIO www.ohioview.org/search/

PENNSYLVANIA www.pasda.psu.edu/access/index.shtml

WISCONSIN www.sco.wisc.edu/wisclinc/

Remote Sensing - Free Orthophotographs

Geographically referenced to the earth

(black/white or color of various scales)

Presence of: Impervious surfaces?

Water bodies?

Drainage patterns?

Comp storage?

New Cooperative Effort: Imagery for the Nation

Aerial view of orthographs

Free from Web at IL Geospatial Data Clearinghouse, IDOT as partner

Example Study - use of Free Data from the web

(floodplains, streams, orthos, elev, soils, trans, + more)

National Spatial Data Infrastructure (www.geo-one-stop.gov)

Screen shot example of GIS software

Free Map Data: U.S. Hydrologic Units (USGS)


Map of U.S. cataloguing units (2149 total)

GIS Tools & Data: Stormwater & Water Quality

Three Examples to Highlight:

  • Cleveland, OH Pilot Research for WatTrans GIS & Decision Support System (DSS)
  • NYSDOT mapping of drainage outfalls using GPS & GIS
  • PA Stormwater & Water Data on Web - at PA State GIS Clearinghouse

GIS-Based Decision Support System (DSS) - Ohio WatTrans Planning, Pilot Research for Cleveland area, OH

3 components OH DSS Tool as:

  1. GIS maps for project area -with viewer
  2. DSS output (to consider potential effects in project area and watersheds and possible BMPs)
  3. Links to more information using DSS as first step

Screenshot of WatTrans: Watershed and Transportation Planning Decision Support System.

Screenshot of Midwest Natural Resources Group web site. Greater Cleveland Decision Support System.

Partners: USGS in OH, the Cuyahoga River Remedial Action Plan (RAP), USEPA, the Ohio Dept of Transportation, the Northeast Ohio Areawide Coordinating Agency and others.

NYSDOT Drainage Outfall Mapping for

State Pollutant Discharge Elimination System (SPDES)

NYSDOT SPDES Outfall Mapping Project July 2006. Shows 10 regions.

NYSDOT SPDES Outfall Mapping- example computer screen

Screenshot of NYSDOT SPDES Outfall Mapping Project July 2006. February 27, 2006. Aerial view of highway system interchange.

More than 4000 drainage outfalls have been mapped using GPS and GIS

Power Tools-Spatial Analysis: GIS -what no other tool can do

IL GIS Predictive Modeling and Tools for Impact Assessment, Mitigation and Monitoring after construction

GIS Model Simulations: Baseline "before" construction

Graph showing salt deposition (gm per sq m). Figure 13. Model simulations of Salt Deposition near the sampling sites.

Predicted Model Results:  "After" construction

proposed trans shown near the center

Throughout Project Delivery - use Data & Tools

Aerial view of multiple highway interchanges.

Project Delivery Cycle: Planning, Studies, Drainage, Design, Construction, O&M Environmental Approvals, Commitments, and Monitoring

GIS, Tools, and Data

Factors for Success

(next pages to read as handout For Great Lakes workshop)

Use of GIS & Technology - How do we get there?

Technology Life Cycle to Match User Needs

Step One: Identify Users and User Needs. Assess data needs and scale (spatial and temporal). Identify available data, methods, tools, and also gaps. Select existing data and tools and eval need for new ones. Design and develop data and tools and maintenance plan. Deliver solutions and tools and measure benefits.

Formula for Success:
Using GIS for In-House and Contracted Work

Determine - how data and GIS to be used, by who

Measure benefits of GIS: before and after

Can focus on one topic but keep the door open for integrated analyses and decisions

Formula for Success (cont): .
Using GIS for In-House and Contracted Work

Match scale & complexity to the decision

Include flexibility and scalability into tool

Pursue consistency in data development & delivery

Useful data is available and downloadable for free

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Questions and feedback should be directed to Susan Jones (Susan.Jones@dot.gov, 202-493-2139) and Marcel Tchaou (Marcel.Tchaou@dot.gov, 202-366-4196).

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