long term redesign of infrastructural assets
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: [email protected]
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