Jena Construction Site Report for Calendar Week 26 (June 22–28, 2026)

Unless otherwise noted, you can walk or bike past the construction sites.

New Closures / Disruptions

At the Planetarium

• Type: Full closure
• Location: House number 5 (near the Planetarium)
• Duration: June 25 through July 17, 2026
• Reason: Civil engineering work
• Details: The detour runs via Käthe-Kollwitz-Straße and Saalbahnhofstraße. Drivers heading from Fürstengraben toward the Damenviertel can take Bibliotheksweg and Sophienstraße.

Announcements/Notices

Track expansion around Paradiesbahnhof

• Type: Restrictions and closures
• Location: Critical point
• Duration: June 29, 2026, through approximately March 31, 2027
• Reason: Renovation of the tram line
• Details: The project will be carried out in three construction phases. 
• Detailed network maps and schedule changes will be published well in advance of the start of construction. 
• Current information can be found at: www.stadtwerke-jena.de/gleisbau-paradies
  • Phase 1 (June 29 through October 15, 2026): Closure of the track section from Paradiesbrücke up to and including the
    Paradiesbahnhof. Pedestrian and bicycle traffic will be rerouted via the adjacent sidewalks on Stadtrodaer Straße. Paradiesbahnhof will be accessible only via the sidewalk on Knebelstraße. Changes to the route maps for lines 1, 4, and 5.
  • Construction Phase 2 (October 15 through the end of 2026): Closure of the track section between the Paradiesbahnhof stop and the Holzmarkt track junction. This construction phase will result in an interruption of tram service and the division of the network into a northern and a southern section.
  • 3. Construction phase (spring 2027): Renovation of the small railroad crossing at the entrance to Paradiesbahnhof – with no restrictions on local transit.

Munketal

• Type: Full closure
• Location: From Pfälzer Straße to house number 1
• Duration: June 29 through August 31, 2026
• Reason: Reconstruction work on utility lines
• Details: Traffic will be rerouted via An der Eule.

Completed Closures

Mühlenstraße Railroad Bridge

• Bridge inspection has been completed.

Münchenrodaer Grund

• Civil engineering work has been completed.

Current closures

August-Bebel-Straße

• Type: Full closure
• Location: from house number 27a to Botzstraße
• Duration: until November 20, 2026
• Reason: Major roadwork
• Details: The construction zone will extend from March 16, 2026, to Botzstraße. Residents of Wilhelm-Külz-Straße can still access August-Bebel-Straße. A detour is posted. Customers can only reach the Norma supermarket on foot.

Göschwitz Train Station, forecourt

• Type: Full closure
• Duration: through June 30, 2026
• Reason: Major redevelopment of the area
• Details: Pedestrians can safely pass the construction site on their way to Göschwitz Station. A limited number of bicycle parking spaces are available in the green area across from the tram stop. Alternatively, bicycles can also be parked in the western section of the station.

Railroad crossings

• Type: Complete closure
• Location: Am Steinbach and Brückenstraße
• Duration: through July 11, 2026
• Reason: Track work
• Details: The railroad crossings will be closed one after the other, ensuring that there is always a way to cross. Detours are signposted, and information signs provide details on the respective closure times:
  • Brückenstraße railroad crossing closure: June15 , 2026, 8:00 a.m. through June 17, 2026, 8:00 p.m.
  • Closure of the Steinbach railroad crossing: Starting June 17, 2026, 8:00 p.m. 
• Local Transit Information: Brückenstraße railroad crossing closure
  • June 15, 2026, 8:00 a.m. to June 17, 2026, 8:00 p.m.
  • June 25, 2026, 5:00 a.m. through June 26, 2026, 2:00 a.m.
  • July 2, 2026, 8:00 p.m. through July 8, 2026, 8:00 p.m.
  • During these times, bus routes 42, 43A, 420, 426, and 431 will be rerouted via the Am Steinbach railroad crossing.
• Important:
  • The “Zwätzen” and “Flurweg” stops will be omitted.
  • The “Brückenstraße” and “Am Steinbach” stops will also be served by routes 43A and 431.
  • Delays and longer travel times may occur.
  • These changes may not be fully reflected in digital schedule information.
  • Further information is available at the affected stops.

Bernhard-Schultze-Straße

• Type: Full closure
• Duration: through October 2, 2026
• Reason: Major road reconstruction involving utility and sewer work
• Details: The work will be carried out in two construction phases. A detour will be signposted.
  • Phase 1: Am Steinborn from Löbichauer Street to Bernhard-Schultze Street
  • Phase 2: Am Steinborn to Klopfleischstraße

Carl-Zeiss-Platz

• Type: Full closure
• Location: House numbers 12 through 14
• Duration: through December 31, 2026
• Reason: Renovation and new construction of the German Optical Museum

Dornburger Street

• Type: Various closures
• Location: House number 6
• Duration: through October 31, 2026
• Reason: New construction
• Details: A one-way traffic system is in effect toward the city center. The closed-off area is being used for construction site setup and loading/unloading. To head out of town, the detour runs via Spitzweidenweg and Nollendorfer Street.

Fritz-Reuter-Straße

• Type: Full closure
• Duration: through October 21, 2026
• Reason: Reconstruction of drinking water, combined sewer, and
• electrical lines
• Details: The work will be carried out in two construction phases. A detour will be signposted.
  • Phase 1: From Kronfeldstraße to Viktor-von-Scheffel-Weg
  • Phase 2: From Viktor-von-Scheffel-Weg to Tatzendpromenade; expected start in April 2026

Forstweg (bridge)

• Type: Full closure
• Location: between house numbers 12 and 24
• Duration: through December 20, 2026
• Reason: Replacement of the bridge
• Details: The road is accessible from both directions only up to the bridge. Depending on the construction work, additional parking and stopping restrictions may apply. Starting May 27, 2026, pedestrian and bicycle traffic will also be rerouted via Kochstraße, Magdelstieg, and Hornstraße. All road users are urged to follow the posted traffic signs at all times. There is a significant risk of injury in the construction zone due to the open excavation pit.

Forstweg Bridge Detour Starting May 27, 2026

© Streicher Verkehrstechnik

Farm Road

• Type: Full closure
• Duration: through July 17, 2026
• Reason: Resurfacing of the asphalt
• Details: The project will be carried out in two construction phases. The closures can be bypassed via the adjacent road network.
  • Phase 2 (April 13 through July 17, 2026): From the intersection with Schreckenbachweg to Am Rosenhang, including Maria-Pawlowna-Straße.

Gembdental

• Type: Full closure
• Location: House number 20 to Gartenweg
• Duration: through June 30, 2026
• Reason: Replacement of the drinking water main

University Hospital stop (Erlanger Allee)

• Type: Closure of one lane in each direction (toward and away from the city)
• Duration: through July 3, 2026
• Reason: Renovation work at the stop
• Details: The surrounding streets are not affected and remain open to traffic. A temporary tram stop will be set up in the westbound/toward the city direction.

Jenertal Stop (Stadtrodaer Straße)

• Type: Closure of one lane
• Duration: until August 14, 2026
• Reason: Renovation work at the stop
• Details: The bus stop will be out of service during this time. A temporary tram stop will be set up in the northbound/toward downtown direction. Pedestrians will still be able to cross the street.

Herderstraße

• Type: Full closure
• Location: between Wartburgstraße and Westendstraße
• Duration: through July 30, 2026
• Reason: Modification of power line routing (to be underground in the future)
• Details: Pedestrians can use ramps as well as temporary, alternating, and accessible routes. Cyclists should please use the detour and, due to space constraints, refrain from parking bicycles on the sidewalk.

Kritzegraben

• Type: Full closure
• Location: Intersection of Kritzegraben, Thomas-Mann-Straße, and Sankt-Jakob-Straße
• Duration: until July 6, 2026
• Reason: Civil engineering work
• Details: Drivers should take a wide detour around the closure.

K 12

• Type: Full closure
• Location: between Closewitz and Cospeda
• Duration: until July 10, 2026
• Reason: Road surface repair
• Details: The detour runs through Lützeroda. The adjacent hiking parking lot will be inaccessible and unavailable during this time.

Lessingstraße

• Type: Full closure
• Location: between Fröbelstieg and Max-Wien-Platz
• Duration: through December 31, 2026
• Reason: Civil engineering work and construction site traffic
• Details: The construction site can be bypassed via Helmholtzweg.

Magdelstieg

• Type: One-way closure
• Location: Near the intersection with Okenstraße
• Duration: through June 30, 2026
• Reason: Installation of medium- and low-voltage cables
• Details: Traffic is controlled by traffic lights. Traffic congestion is expected. If possible, please take an alternate route around the area.

Mühlenstraße

• Type: Full closure
• Location: From house number 104 to the intersection with Ulrichweg and from the intersection with Ulrichweg to house number 48
• Duration: through July 3, 2026
• Reason: Removal of power poles
• Details: The work will be carried out in two phases. The closure can be bypassed via Lichtenhainer Oberweg. A traffic light regulates traffic there.

Naumburger Straße

• Type: Full closure
• Location: From the Jena city limits to the intersection with Carl-Orff-Straße Süd
• Duration: Phase 1 through November 30, 2026
• Reason: Extensive infrastructure project (road reconstruction, pedestrian and bike paths, utility lines, tram line extension)
• Details: The detour is extensive in both directions, starting from Camburg/Rodameuschel via the L1070 to Trotz, and from Trotz on the B7 via Bürgel to Jena. The junction with Carl-Orff-Straße Süd remains open to traffic at all times. 
• More information about the project: jena.de/ausbau-jena-nord

OBI Tunnel

• Type: Complete closure of the pedestrian/bike path
• Location: Camburger Straße to the OBI Tunnel
• Duration: through August 14, 2026
• Reason: Expansion of the pedestrian/bike path
• Details: The tunnel will be impassable during this time due to the renovation work. Traffic will be rerouted via the Saalbahnhof Tunnel.

Remderodaer Straße

• Type: Full closure
• Location: between Münchenrodaer Grund and the railroad bridge
• Duration: through October 16, 2026
• Reason: Replacement of the drinking water pipeline and road resurfacing
• Details: A detour will be signposted.

Sankt-Jakob-Straße

• Type: Complete closure of the southbound lane
• Location: between Kritzegraben and Spittelplatz
• Duration: through December 31, 2026
• Reason: Major renovation of the area
• Details: Pedestrians and cyclists will be rerouted via Philosophenweg toward Sankt-Jakob-Straße. Kritzegraben, Am Planetarium, and Sophienstraße remain fully open to traffic.

Theobald-Renner-Straße

• Type: Partial closure and full closure
• Location: Full closure at house number 2
• Duration: through July 17, 2026
• Reason: Road resurfacing
• Details: Traffic congestion is expected.
  • Properties and parking spaces remain accessible.
  • The full closure near house number 2 can be bypassed via the detour on Theobold-Renner-Straße.
  • Access to the swimming pool and the parking lot is guaranteed.

Wöllnitz Pedestrian Bridge

• Type: Restrictions and closures
• Location: in the area of Stadtrodaer Straße
• Duration: through September 12, 2026
• Reason: Bridge renovation
• Details: The project will be carried out in 5 construction phases. During the 4th and 5th
• phases, the bridge will be closed to pedestrians and cyclists.
  • Phase 4 (April 13 through June 26, 2026): Closure of the lanes heading out of town; traffic will be diverted to the opposite direction.
  • 5th construction phase (June 27 through September 12, 2026): Closure of the lanes heading into the city; traffic will be diverted to the opposite direction.