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Figure A-1

GREENWAY CORRIDOR
TYPICAL CROSS-SECTION

width varies 10'-75'
+. RESIDENTIAU • ZONE • + ZONE + + COMMERCIAL +
RESIDENTIAU
PRESERVATION
BUFFER
COMMERCIAL
OR
OR
AGRICULTURAL & Total Minimum Greenway Width = 85 feet - AGRICULTURAL &
POTENTIAL FUTURE Total Minimum POTENTIAL FUTURE
DEVELOPMENT ZONE DEVELOPMENT ZONE
Greenway Width= 75 feet� �
by Ownership or Easement by Ownership or Easement to Waukesha County
DEVELOPMENT to Waukesha County
+-zoNE-+ GREENWAY ZONE .... DEVELOPMENT ZONE ....
The Greenway Corridor serves as a River/Streamway buffer to:
(a) Protect water quality by littering and removing sediment, organic matter, pesticides and other pollutants from surface
runoff and subsurtace flow through deposition, absorption, plant uptake, denibification or other processes
(b) Craate, enhance, and protect wildlife habitat and provide a corridor for the movement of a wide range of species
(c) Protect and stabilize the riparian lands and reduce flood water velocity
(d) Protect high quality plant communities, including upland woods.
(e) Provide non-motorized trail opportunities.
PRESERVATION ZONE BUFFER ZONE TRAIL CORRIDOR ZONE DEVELOPMENT ZONE
Purpose Resource­ • To leave in as natural a state as possible • Provide distance between • Provide non-motorized trail opportunities • Provide land for agricultural
Based Protection by protecting water quality and the resldentlaVcommerclal land or agricultural along greenway corridor with visual buffer preservation or future
physical integrity of the creek/ stream/ land and preservation corridor zone. from adjacent property owners. development.
river ecosystem and high quality plant
communities including upland woods.
Width • Varies based upon: a Minimum width of 10-75 feet from edge of a Width of trail corridor zone may vary based upon • Varies with Zoning.
-Wetlands (SEWRPC) preservation zone. on-site location of trail.
-A-rated vegetation"-*"**
-Critical Species Habitat (SEWRPC) • Varies based on: Trail location based upon:
-Natural Areas of Statewide significance - Minimizing disturbance to natural
(NA1) RESOURCE FEATURES features of land
-NA2and NA 3 - Ability of soils and slopes to support trail
-Class I WIidiife""**** construction in a cost effective manor
• May Include:
-Slopes >20% within or directly adjacent BUFFERS
to river corridor. 25ft.- Natural Areas (NA 1, NA 2, and • NON-MOTORIZED TRAIL
-Class I Wildlife Habitat* ... *** NA 3)
-Floodplain* 25ft.- Class I Wildlife Habitat***"** 20 ft crossection consisting of:
-Primary Eviromental Corridor. 25ft.- Critical Species Habitat 5 ft mowed shoulders
25ft.- A-Rated Vegetation"""""'* 1 O ft asphalt paved trail
25ft.- Slopes 20% or greater
10-75ft.- Wetlands (Varies based on • VISUAL BUFFER
quality)****
50ft.- Water Features "*** (or 20 ft when 25 ft visual buffer from trail shoulder to adjacent
adjacent use ls Agricultural.""*) property.
May include: May occur on adjacent property through
-Areas rated Severe for the development of easement/ agreement.
paved trails. (Based on suitability criteria)
Ecological .wetlands • Mature riparian vegetation native to the • Floodplain•, Primary or Secondary Environmental • Farming in agriculture areas,
Value/Target • A-rated Vegetation *'* •*** southeastern Wisconsin region Corridor, and B, c, D, E and F rated vegetation**"*""" • Primary Environmental Corridor in
• Slopes > 20% • Natural areas of Countywlde and Local • Class II Wildlife Habitat or greater. Class I Wildlife development areas (PEC Restrictions
• Natural Areas of Statewide significance significance (NA 2, NA3) Habitat or Critical Species areas will be evaluated on a Apply).
(NA1) • May include: Floodplain*, Primary or case by case basis.
• Critical Species Habitat Secondary Environmental Corridor, and B, C, • Slopes not exceeding 20% and preferably not on slopes
• Class I Wildlife Habitat*"**** D, E and F rated vegetation °**""" exceeding 5%
• Water quality protection based on the • Class I Wildlife Habitat***""" • Soils suitable for trail development.
standards of NR151"*"* , NRCS- sec. • Water quality protection based on the May occur within:
1v•-and the Waukesha County standards of NR1s1•••• and NRCS- sec. IV* .. • Mature riparian vegetation native to the southeastern
Shoreland & Floodland Protection and the Waukesha County Shoreland & Wisconsin region
Ordinance. Floodland Protection Ordinance. • Natural Areas of Coontywide and Local significance (NA
2,NA3)
Uses • Allowable uses limited to: • Allowable Uses: • Allowable Uses: • As permitted by Zoning
- Stormwater channels* .... -selective vegetation removal and - Farming Regulations. May be Farming,
- Signage noxious weed control - Selective vegetation removal and Housing, Commercial, Park, Golf
- May include Non-Motorized Trail -firebreaks noxious weed control Course, Public Roadway.
Linkage or continuation of trail.** -Stoonwater retention/detention/ - Firebreaks
- May include boardwalk for trail linkage. outfall structures - Non-motorized Trails
- Noxious weed control. - Stormwater retention/detention/outfall structures
- Firebreaks. - Boardwalk allowed for trail linkage
• Restricted Uses: - Signage
-No buildingS/structures - Maintenance vehicles
• Restricted Uses:
- No buildings/structures
• All uses to follow • All uses to follow • All uses to follow
Best Management Practices Best Management Practices Best Management Practices
Flood way - as defined in the Waukesha County Shoreland Protection Ordinance and
Waukesha County Greenway Definition of Terms.
Location of Non-motorized Trail with Greenway Corridor based upon site specific Waukesha County Department of Parks and
evaluation of site features and land-based suitabilities. Refer to Waukesha County Greenway Corridor
TrailGuidelines. Land Use - Parks System Division
NRCS standards are found in Section IV of the Field Office Technical Guide, published by the 1320 Pewaukee Road, Room 230, Waukesha, Wisconsin 53188
USDA Natural Resource Conservation Service. tele: 262-548-7790 fax: 262-896-8071
NR 151 is a Wisconsin Department of Natural Resources administrative code that defines
minimum performance standards for runoff pollution control.
***** Paved channels are not considered compatible within the Preservation Zone. Pc'l'a-d "'' Wruke,l,a � r'I'.- ,rpat, ml ,mi LI,e - Pai, 5",tem r.,,.,,
****** Areas of A-Rated Vegetation and Class I Wildlife Habitat will be include as field verified on a site by site basis. Re-,1,ed 2/01.
,...,. ....... Vegetation rating based upon Waukesha County Parks vegetation rating system.