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Lock renovation

Lock renovation

The historic locks on the Finowkanal

The renovation of the locks on the Finowkanal is one of the most important infrastructure projects of recent decades. The federal, state and local authorities are working together to renovate a total of 12 historic locks in order to ensure the navigability of the canal for the next 80 to 100 years.

The construction work is being carried out in several packages: Since the beginning of 2023, all six western locks from Ruhlsdorf to Wolfswinkel are under construction. Its is planned that the work will be completed in 2027, with the first locks gradually going into trial operation in the season of 2026. Preparatory work for the eastern locks between Eberswalde and Niederfinow is also underway.

This means that the Finowkanal will not only remain an exciting technical monument, but also a waterway that can be experienced by visitors and boat tourists in the long term.

Restrictions for boat traffic

The locks from Ruhlsdorf to Heegermühle will be gradually reopened in the 2026 season. Entry from the east (boat lifts) will be via the Liepe lock. From here, the Finowkanal can be navigated as far as the Drahthammer lock (Eberswalde Familiengarten).

For further information, please contact the lock management by telephone on +49 151 724 388 71 or send us an e-mail.

Closed locks:

Ruhlsdorf, Leesenbrück, Grafenbrück, Schöpfurt, Heegermühle, Wolfswinkel

Operation on request:

Kupferhammer, Drahthammer
( 24h in advance under: +49 151 724 388 71)

Open locks:

Stadtschleuse, Ragöse, Stecher, Liepe
Start of season 18.04.2026

Restrictions

In the construction site area

Construction diary

We keep you up to date

Construction site tours

Experience work up close

Joining forces

Historic infrastructure project

After long negotiations between the federal government, the district of Barnim and the neighboring municipalities and intensive preparatory work, the ground-breaking ceremony for the basic restoration of the 12 historic locks of the Finowkanal took place on 17.02.2023. This important infrastructure project ensures the permanent navigability of the Finowkanal as a former lifeline of industrial development in the region and is unique in Germany to date. In the future, the waterway will primarily be used for leisure boating and is an important building block for the development of tourism in the region. The Zweckverband Region Finowkanal is initially carrying out basic repairs to the first six of the Finowkanal’s twelve historic locks. Construction work began on the three locks in Ruhlsdorf, Leesenbrück and Grafenbrück and the expansion of the control center in Zerpenschleuse for remote monitoring of the locks and will continue successively over the coming years.

Finowkanal

Frequently asked questions about lock refurbishment

The six western locks of the first lock package have been under construction since summer 2025. The first locks are scheduled to reopen in 2026. For the second lock package (the 6 eastern locks), the ZRF is planning to start construction in 2028/2029, depending on the preliminary investigations and financing.

No. The construction measures for the Finowkanal locks are divided into implementation packages. The first three locks (Ruhlsdorf, Leesenbrück, Grafenbrück) have been under construction in parallel since 2023. Construction work on the next three locks (Schöpfurt, Heegermühle, Wolfswinkel) began in 2024/2025. The second lock package (Drahthammer, Kupferhammer, Stadtschleuse, Ragöse, Stecher, Liepe) is expected to follow from 2027.

We have made every effort to keep the restrictions for residents and road users to a minimum. Nevertheless, there will be traffic disruptions in some places during the construction work. All three locks will be affected by restrictions on car, pedestrian and cycle traffic during the construction period

Ruhlsdorf lock
Restrictions on the L71 for car drivers and temporary detour of the cycle path onto the L71.

Leesenbrück lock
The existing crossing over the lock area cannot be used by pedestrians and cyclists during the construction period. The “Treidelweg” footpath and cycle path south of the lock is closed in the construction area and will be diverted via the village of Marienwerder.

Grafenbrück lock
The road bridge with the “Grafenbrücker Weg” road overpass is closed to cars, pedestrians and cyclists during the construction period. The detour is via the Krugbrücke bridge in Marienwerder.

Heegermühle lock
The “Treidelweg” footpath and cycle path north of the lock will be closed. A detour will take place north of the allotment site and is signposted. The towpath can be used at weekends and outside working hours (between 7 pm and 7 am). The road ‘Am Finowkanal’ will be closed and is only open to residents.

During the construction period, vibration-intensive and noisy work will be carried out, which may affect residents living near the individual lock locations. This work will be documented and monitored using a noise and vibration monitoring system. Affected residents will be informed and advised in advance by our immission control officer.

In this way, we want to ensure that avoidable disruption is prevented during construction and unavoidable disruption is kept to a minimum.

No, the Finowkanal is not completely closed. The locks under construction are closed for around 2 years. It is therefore not possible to navigate the entire canal with motorboats. However, it is possible to navigate up to the closed locks. Muscle-powered boats can be used up to the respective closed areas of the construction sites. This also means that trips between the closed areas are possible. Due to the local conditions, it is unfortunately not possible to transfer canoes etc. at the construction site areas.

The new locks will meet the current technical requirements for hydraulic structures and are designed with a service life of at least 80 years. Our aim is to build locks that are safe for traffic, but which also incorporate the historical design of their predecessors. As you can see from the illustration, the locks are built to the original dimensions and designed according to the historical model. Historic building elements will be integrated into the new lock facilities wherever possible. A significant modernization of the operation is the future use of the new locks through the self-operated control system (automation). In addition, manual operation based on the historical model with mechanical drives is also possible as an option.

Construction diary

Join us on the exciting journey 'Restoration of the 12 historic locks on the Finowkanal'.

construction log

14.11.2025

Update on the 6 lock construction sites
Overview of construction progress at the six lock construction sites
construction log

01.08.2025

Gate installation Ruhlsdorf
At the Ruhlsdorf lock, the gates were inserted in the upper head.
construction log

20.06.2025

Granite stone columns
The historic granite cornerstones were restored and reinstalled in Ruhlsdorf and Leesenbrück.
construction log

02.05.2025

Clinker brick for Ruhlsdorf
The clinker facing bricks are currently being laid at the Ruhlsdorf lock.
construction log

04.04.2025

Backfilling of Wolfswinkel outer harbor
The upper outer harbor at the Wolfswinkel lock is currently being filled in.
construction log

24.03.2025

Sole in Heegermühle
The base of the lock is currently being concreted in the excavation pit at Heegermühle.
construction log

06.03.2025

Wolfswinkel construction road
The construction road is being built at the Wolfswinkel lock.
construction log

28.01.2025

6 locks under construction
Since January 2025, 6 of a total of 12 historic locks on the Finowkanal have been under construction.
construction log

18.10.2024

Shuttering chamber walls Ruhlsdorf
After completion of the lock floor, formwork work is carried out in Ruhlsdorf.
construction log

13.09.2024

Start of construction in Schöpfurt
With the start of construction at the Schöpfurt lock, a total of five locks are now under construction.
construction log

16.08.2024

Sluice chamber floor
In Ruhlsdorf, the chamber floor was concreted in four sections. This forms the foundation of the future lock.
construction log

06.06.2024

First dry excavation pit
In Ruhlsdorf, the excavation pit was pumped empty (drained) after the excavation water had been neutralized.
construction log

22.05.2024

Grafenbrück bridge
Due to a road bridge, there are two separate construction pits at the Grafenbrück lock.
construction log

05.05.2024

Underwater concreting
In the last few weeks, underwater concreting has been carried out at the first three locations.
construction log

01.05.2024

Micropiles
Micro-grouted piles were installed to anchor the underwater concrete base in a grid of 2 by 2 meters.
construction log

10.04.2024

Start of construction at Heegermühle
Construction work for the replacement of the Heegermühle lock began on Monday, 25.03.2024.
construction log

12.03.2024

Expansion of the control center
The first section of the Finowkanal, the Lange Trödel, already has a control center for controlling the three movable bridges on the Lange Trödel as well as ...
construction log

02.01.2024

Soil and structural investigations SP2
In lock package 2, the necessary subsoil and structural investigations have been carried out in recent months.
construction log

11.12.2023

HDI pillars
Review: September 2023 In Grafenbrück, a road bridge crosses the lock chamber. This will remain in place during the construction work.
construction log

06.11.2023

Underwater demolition
The old underwater lock chambers are now being demolished at the first three locks.
construction log

28.08.2023

Reinforcement of the excavation pit
Cross struts are inserted between the sheet piles to ensure that they can withstand the pressure of the surrounding soil.
construction log

05.06.2023

Demolition work
The demolition of the old lock chambers has begun.
construction log

17.04.2023

Start of construction from Ruhlsdorf to Grafenbrück
Construction work has begun on the western sites in Ruhlsdorf, Leesenbrück and Grafenbrück.
construction log

24.03.2023

Demolition of Ruhlsdorf factory building
The historic operations building at the Ruhlsdorf lock is being dismantled.
construction log

10.03.2023

Construction of the construction roads
The construction roads to the lock construction sites are being built.
construction log

17.02.2023

Groundbreaking ceremony
The ZRF celebrates the start of construction with representatives from politics and business with a symbolic ground-breaking ceremony.
construction log

22.06.2022

First property purchase agreement
Symbolic signing of the land purchase agreement for the Ruhlsdorf lock between the ZRF and the GDWS
construction log

04.02.2021

ILB financing agreement
The overall financing of the large, Germany-wide unique pilot project for the basic repair of the first six locks on the Finowkanal has been secured.

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