City of Peoria
Stream Buffer/Storm Water Management

Greenways Workshop at Davis Lodge
Friday, November 8, 2013
Jane Gerdes, P.E., Civil Engineer

1
What is a Stream Buffer?
A buffer for a stream
system shall consist
of a protective,
forested and/or
vegetated strip of
land extending along
both sides of a
stream, and its
adjacent floodway
and slopes.

2
What are Benefits of Stream Buffer?
Officially:
to protect property
to protect water quality
to protect riparian and
aquatic ecosystems
to provide for the
environmentally sound
use of land resources
3
What are Benefits of Stream Buffer?
Also:
Erosion control
Flood management
Growth management
tool
Aesthetic value
Recreational
opportunities
4
What led Peoria to Develop a Stream
Buffer Ordinance?
Structural Failure

5
Unstable Slopes

6
Problems Waiting to Happen!

7
Creeks with no Environmental or
Aesthetic Benefits

8
Floodplain
Encroachment/Restriction

9
The Process
Model Ordinance
Informational public
meetings
Stream Buffer Committee
Research of other ordinances
Final Ordinance approved on
February 1, 2005

10
Peoria’s Stream Buffer Ordinance
Applies to all proposed development except:
Previous plats/plans
Unexpired building permits
Existing buildings
Agricultural operations
IL River

30 feet to 50 feet in width – each side of stream
Must include 100-year floodplain
100Alternative compliance
11
Buffer Management
Allowable practices and uses:
Flood control structures
Utilities
Biking and hiking paths
Road Crossings
Recreational and park facilities
Sanitary and storm water sewers
Selective tree and vegetation clearing
12
Example–
Example– Traditional Compliance
Hunters Trail

13
Example–
Example– Traditional Compliance
Hunters Trail

14
Example–
Example– Traditional Compliance
Hunters Trail - 2007

15
Example–
Example– Traditional Compliance
Hunters Trail - 2013

16
Example–
Example– Alternative Compliance
Attingham Park

17
Example–
Example– Alternative Compliance
Attingham Park

18
Example–
Example– Alternative Compliance
Attingham Park - 2007

19
Example–
Example– Alternative Compliance
Attingham Park - 2013

20
Example–
Example– Alternative Compliance
Attingham Park - 2013

21
Example–
Example– Home Construction
Stonehenge Subdivision - 2013

22
Example–
Example– Home Construction
Stonehenge Subdivision - 2013

23
Example–
Example– Home Construction
Stonehenge Subdivision - 2013

24
Stream Buffer - Enforcement
Building Inspectors
Citizen complaints
Fines of up to $1,000 per
day per violation

25
Stream Buffer - What We’ve Learned
Public vs. private
ownership
Rear yard setback waiver
Standard boundary
marker
Gravity flow drainage
systems
Additional education
26
Questions?

Thanks so much for inviting me today!
Jane Gerdes, jgerdes@peoriagov.org,
Gerdes, jgerdes@peoriagov.org,
309-494-8819
309-494-

27

Stream buffer 20131108