Long Term Redesign of Infrastructural Assets

Post on 21-Feb-2022

5 Views

Category:

Documents

0 Downloads

Preview:

Click to see full reader

Transcript

Long Term Redesign of Infrastructural Assets General Approach & Case Study

Vera Konings (Rijkswaterstaat), Saskia van Vuren (HKV Lijn in Water), Wouter van der Wiel (Iv-Infra), Maarten van der Vlist (Rijkswaterstaat)

Issue• The Netherlands has a complex network of waterways, with many

and different types of hydraulic structures. A lot of these structures are nearing the end of their lifetime in the coming decades, making replacement or renovation necessary.

• The existing structures have to be redesigned to meet the challenges of future developments and service demands of future generations.

• This stresses the importance of an integral maintenance and development strategy at the network level.

Approach• This asks for a learning and interactive process with early

stakeholder involvement.• New functionalities, changing performance requirements,

uncertainties in climate and socio-economic developments all influence the need and timing of the renovation or replacement, and should therefore also be considered.

• Adaptive Delta Management is a method that incorporates future uncertainties. This supports a transparent decision making process and uses so called ‘adaptation pathways’.

Case: Discharge Sluice and Pumping Station IJmuiden

Identify issues, propose strategies, identify vulnerability, identify options

Description of the water system and the stakeholders of the hydraulic structures.

Discharge sluice and pumping station IJmuiden Source: Rijkswaterstaat

Functions: Discharge- and pumping capacity of the hydraulic structures in the water system.

End-of-life: prediction end-of life of the hydraulic structures, based on founding year + design lifetime.

Possible courses of action to redesign the water system for the future.

Fictive example or ‘sketch’ of a possible adaptation path for the water system ARK/NZK and discharge sluice and pumping station IJmuiden, based on prognoses for the end-of-life of hydraulic structures.

1. The hydraulic structures in the water system

2. Options to redesign 3. Adaptation pathways

Amsterdam

Rhine Channel

(ARK)

North Sea

Channel (NZK)

Chronologic sequence end-of-life of the hydraulic structures in the water system ARK/NZK.

Acknowledgements: Waterschap Amstel, Gooi en Vecht, Hoogheemraadschap Hollands Noorderkwartier, Hoogheemraadschap van Rijnland, Hoogheemraadschap De Stichtse Rijnlanden, DRO Amsterdam, Deltaprogramma

Deelprogramma IJsselmeergebied, Rijkswaterstaat West-Nederland Noord

Further information: vera.konings@rws.nl

Legend

Hydraulic structures of

Rijkswaterstaat

Hydraulic structures of the

regional water boards

Shipping locks

Legend

Pumping capacity

from NZK/A RK [m3 /s ]

Discharge capacity at

NZK/A RK [m3 /s ]

Discharge capacity

from NZK/A RK [m3 /s ]

Discharge capacity

from NZK/A RK [m3 /s ]

P lanned capacity

expans ions

[m3 /s ]

Legend

Main water system

Expans ion pumping s tation

I Jmuiden

Temporary s torage at

Markermeer

A lternative route Markermeer-

IJsselmeer

A lternative route via the Lek

Regional water system

O ptimalisation of exis ting

alternative routes

Partially disconnect regional

discharge area

Temporary s torage in regional

sys tems

Foundingyear

Foundingyear

Expectedend-of-life

founding year + design lifetime

Legend

Pumping capacity from

NZK/A RK [m3 /s ]

Discharge capacity at

NZK/A RK [m3 /s ]

Discharge capacity

from NZK/A RK [m3 /s ]

Discharge capacity

from NZK/A RK [m3 /s ]

P lanned capacity

expans ions

[m3 /s ]

Currentsituation

Optimalisationof the watermanagement and water system

Replace or build a new regional

pumping station -

Possible to ex-pandwith extra capacity

to relieve ARK/NZK?

Main water sys-tem: Replace and expand pumping station

IJmuiden.

End-of-life pumping station

Zeeburg, Spaarndam

No

Yes

Main water sys-tem: Replace pumping station IJmuiden (Replace

+ expand IJmuiden, earlier than ex-

pected end-of-life).

Main water system: Replace pumpingstation IJmuiden –Capacity expan-sionpossible?

Main water system: new pumping station at Oranjesluices(1:1 replacement of IJmuiden)

Yes

Main water system: new pumping station Oranjesluices For the long term: expansion pumping capacity

Afsluitdijk+ Houtribdijkneeded.

Main water system:

new pumping

station at

Beatrixcluices(1:1 replacement of

IJmuiden)

Main- or regional water system

Climate- and socio-economic developments

End-of-life

Beatrix sluices, discharge sluice IJmuiden,

Zaangemaal, De Waaijer

End-of-life

pumping sta-tion IJmuiden,

Halfweg

New pumpingstation at HoutribdijkFor the long term: expansion of pum-

ping capacity Afsluitdijk.

End-of-life

Houtribsluices, Kadoelen

End-of-life

Lutjewinkel, Katwijk, Oranje-

sluices, Gouda

2015 21002050

No

No

Continue current water management

Main water system: New pumping sta-tionat Beatrix slui-ces(1:1 replacement of IJmuiden)

Main- or regional water system

Main- or regional water system

Main- or regional water system

Further measure-mentsin regional water system (1:1

replacement IJmuiden)Replace or build a new regional pumping station

- Possible toexpand with extra

capacity to relieve

ARK/NZK? Yes

top related