Management and maintenance

Beheer en Onderhoud

Questions• What is meant by management

(beheer) ?

Regulations (regelgeving)• What is meant by maintenance

(onderhoud) ?

Activities (activiteiten)

regulations• European

• EU WFD (Water Framework Directive)• etc

• State • In the Netherlands: WB 21e eeuw• etc

• Province, District or County• In the province of Zeeland: Verordening

waterhuishouding Zeeland (Regulation on watermanagement Zeeland)

regulations (continued) • Agreements

• In NL: NBW (National management agreement on water)

Main issues:• Compliance with NBW• Compliance with groundwater and surfacewater

regimes• In NL: Waterschap

• Water management plan• “Keur”: Set of regulations (Zones)• Own policy• Management of fisheries

What needs to be managed and maintained in a

watersystem?

Watermanagement components:• Surfacewaters

• Beds• Embankments, landing-stages, piers• Verges

• Structures• Culverts, bridges, siphons• Waterpumps, locks and sluices• Weirs

• Dredgings depots• Waterlevels

Watermanagement instruments?

Management instruments in a “waterschap”

• “Legger”• Administrative set , after public consultation

• “Peilbesluit” • Administrative set , after public consultation

• “Keur”• Administrative set , after public consultation

Surface water bodyOppervlaktewaterlichamen

Protection zone > 7 m Protection zone > 7 m

edge

Types of watercourses (ditches)Watergangen

• PrimarySupply (aanvoer) and Discharge (afvoer) Discharge area (afvoergebied) > 25 haStorage (berging)

• SecondarySupply (aanvoer) and Discharge (afvoer) several Plots / Parcels (percelen)Storage (berging)

• TertiaryMainly storage (berging)

“Legger”• Situation of the watersystem• Who is managing• Who is maintaining • Main dimensions of watercourses• Main dimensions of structures• Maps• Website (dutch) showing “Legger”

http://geoinfo.scheldestromen.nl/

“Keur”

• Regulations on what is allowed, prohibited and ordained in a watersystem• Maintaining• Use• Grounds for release• Spacial claims

“Keur” (continued)• Spacial planning

• Discharge• Storage• “Keur”zones• Waterquality

• Release on contract (permits)• Compliance checks (fines)

“Keur” (continued)• Protection zone (for maintenance)

adjacent to ditch• Minimal 7 m at both sides of surface

water. Can be different with permit.

Website keur (dutch)http://decentrale.regelgeving.overheid.nl/cvdr/XHTMLoutput/Historie/Waterschap%20Scheldestromen/273192/273192_1.html

“Peilbesluit”• Which levels where• Potential deviations (afwijkingen)• Basis for choice surface water level

(In NL: GGOR = Preferred groundwater and surface water regime)

• Maps

What are the maintenance activities for waters?

Maintenance activities for waters:• Dredging (quantity and quality)• Mowing (quantity ansd aesthetic)• Reconstruction of sidestructures• Reconstruction embankments• Remove new growth on natural

embankments

Maintenance activities for waters:Points of attention:• Flora and Fauna regulations• Quality of offcoming materials• Dumping locations (obligation to receive)• Transportcosts• Accessibility• Harvest time• Temporarily a different water level• Equipment

• Mobile• Sailing (with dumpship or suctionpipe)

What are the maintenance activities for structures?

Maintenance activities for structures :• Remove dredgings• Repair structures where needed• Check functions and operations