The Schinkelberg elevated reservoir is located in the northeastern part of Osnabrück's water distribution network and is of particular importance for the supply of the Wittefeld zone. The Wittefeld waterworks is designed as a base load plant and feeds a relatively constant amount into the drinking water network over periods of several weeks. The inner-city waterworks Hunteburger Weg also constantly feeds into the network. This means that a container is required in the Wittefeld common zone that can be used to compensate for fluctuations in consumption throughout the day.
Another important task of the Schinkelberg elevated tank is to protect against failures in the area of drinking water supply due to the failure of a waterworks or a feeder pipe. Due to the oversupply of drinking water between the Wittefeld and Thiene zones, the volume of the Schinkelberg and Piesberg elevated tanks is available in most incidents.
The Schinkelberg elevated tank consists of two interlocking spiral-shaped water chambers made of reinforced concrete with a total nominal volume of 10,000 m³ (usable volume 8,000 m³). The elevated tank is essentially operated as a continuous tank. The feed takes place above the water level. The drain is located at the end of each spiral water chamber, which ensures a continuous exchange of water in the chambers. The water flows via a DN 500 GGG drain pipe into the Wittefeld zone. In addition, water is pumped into the Schinkelberg high zone via the pressure boosting system located in the valve chamber of the tank.
Due to the great importance for the security of supply of Osnabrück, it was decided to build a new Schinkelberg main station with a larger usable volume (10,000 m³). The decisive factor for the larger dimensioning is the safeguarding of the water supply even in the event of an accident on important main lines and systems.
A feasibility study for the project was completed in the first quarter of 2022. The result of this investigation is the recommendation of a new building in the form of a glasses container on the adjacent property. This variant is also favored by SWO Netz GmbH and is to be implemented in the further course of the project.
A preliminary building permit has already been issued for the construction project.
The total construction costs are currently estimated at approximately EUR 6.7 million net.
- Object planning of civil engineering structures (elevated tanks and buried pipelines) Lph 1-3, optionally Lph 4-9 according to § 43 HOAI in conjunction with Annex 12, No. 12.1,
- Structural design phases 1-3, optionally phases 4-6 in accordance with § 51 HOAI 2021 in conjunction with Annex 14, section 14.1,
- Planning of technical equipment phases 1-3, optionally phases 4-9 in accordance with § 55 HOAI in conjunction with Annex 15 No. 15.1, plant groups 1 and 4,
Special / additional services:
- Creation and control of hygiene concept
- Preparation and control of quality assurance plan
- Audit and participate in the procurement of funding
- Preparation of an application for exemption in accordance with Section 31 (2) BauGB, including proof of compelling reasons of overriding public interest in the necessity of the measure
- Creation of 3 design variants (façade design) to coordinate and obtain the necessary public law approval
- Preparation of a hydraulic proof (sufficient water exchange in the tank chambers)
- Creation of as-built plans
- Optional: Local construction supervision for civil engineering structures as a special service in accordance with Annex 12, Section 12.1 to § 43 paragraph 4 HOAI
- Optional: review of supplements