Jena Construction Site Report for the 25th calendar week (June 15–21, 2026)

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

New Closures / Disruptions

Mühlenstraße railway bridge

• Type: Full closure
• Location: Under the viaduct
• Duration: June 17, 2026
• Reason: Bridge inspection
• Details: The closure can be bypassed via Hermann-Löns-Straße, Winzerlaer Straße, Rudolstädter Straße, and Kahlaische Straße.

Railroad crossings

• Type: Full closure
• Location: Am Steinbach and Brückenstraße
• Duration: June 15 to July 11, 2026
• Reason: Track work
• Details: The railroad crossings will be closed one after the other, ensuring that a crossing option remains available at all times. Detours are signposted, and information boards provide details on the respective closure times.
• 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. to June 26, 2026, 2:00 a.m.
  • July 2, 2026, 8:00 PM to July 8, 2026, 8:00 PM
  • During these times, bus lines 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 lines 43A and 431.
  • Delays and longer travel times may occur.
  • The changes may not be fully reflected in digital timetable information.
  • Further information is available at the affected stops.

Kritzegraben

• Type: Full closure
• Location: Intersection of Kritzegraben, Thomas-Mann-Straße, and Sankt-Jakob-Straße
• Duration: June 15 to July 6, 2026
• Reason: Civil engineering work
• Details: Please use alternate routes to avoid the closure.

Magdelstieg

• Type: Single-lane closure
• Location: Near the Okenstraße intersection
• Duration: June 17–30, 2026
• Reason: Installation of medium- and low-voltage cables
• Details: Traffic will be 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: June 15 to 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.

Münchenrodaer Grund

• Type: Full closure
• Duration: June 15–19, 2026
• Reason: Civil engineering work
• Details: A detour will be signposted.

OBI Tunnel

• Type: Complete closure of the pedestrian/bike path
• Location: Camburger Straße to the OBI Tunnel
• Duration: June 16 to 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.

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 atwww.stadtwerke-jena.de/gleisbau-paradies
  • Phase 1 (June 29 to October 15, 2026):Closure of the track section from Paradiesbrücke up to and including the Paradiesbahnhof stop. Changes to the route maps for lines 1, 4, and 5.
  • Construction Phase 2 (October 15 to the end of 2026): Closure of the track section between the Paradiesbahnhof stop and the Holzmarkt 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 access road to Paradiesbahnhof. This will take place without restrictions on local traffic.

Munketal

• Type: Full closure
• Location:from Pfälzer Straße to house number 1
• Duration: June 15–19, 2026
• Reason:Reconstruction work on utility lines
• Details:Traffic to adjacent streets will be rerouted via An der Eule.

Completed closures

Philosophenweg

• Renovation of the drinking water line 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 reconstruction
• Details:The construction zone will extend from March 16, 2026, to Botzstraße. Residents of Wilhelm-Külz-Straße can still access August-Bebel-Straße. Adetour is signposted.Customers can only reach the Norma supermarket on foot.

Göschwitz Train Station, forecourt

• Type: Full closure
• Duration: until June 30, 2026
• Reason: Major redevelopment of the area
• Details: The construction site can be safely passed on foot in the direction of 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 area of the station.

Bernhard-Schultze-Straße

• Type: Full closure
• Duration: until October 2, 2026
• Reason: Major renovation including utility and sewer line 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 to 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: until October 31, 2026
• Reason: New construction
• Details: A one-way traffic system is in effect heading into town. The closed-off area is being used for construction site setup and loading/unloading. To head out of town, the detour goes via Spitzweidenweg and Nollendorfer Street.

Fritz-Reuter-Straße

• Type: Full closure
• Duration: until October 21, 2026
• Reason: Reconstruction of drinking water, stormwater, and electrical lines
• Details: The work will be carried out in two construction phases. A detour will be signposted.
  • Phase 1: From Kronfeld Street to Viktor-von-Scheffel-Weg
  • Phase 2: From Viktor-von-Scheffel-Weg to Tatzendpromenade, expected to begin 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 current traffic diversion at all times. There is a significant risk of injury in the construction zone due to the excavation pit.

Forstweg Bridge Detour Starting May 27, 2026

© Streicher Verkehrstechnik

Farm road

• Type: Full closure
• Duration: until 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 to July 17, 2026): From the Schreckenbachweg intersection to Am Rosenhang Street, including Maria-Pawlowna-Straße.

Gembdental

• Type: Full closure
• Location: House number 20 to Gartenweg
• Duration: until 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: until July 3, 2026
• Reason: Renovation work at the stop
• Details: The surrounding streets are not affected and remain opento traffic. A temporary tram stop will be set up in the westbound/toward downtown direction.

Jenertal stop (Stadtrodaer Straße)

• Type: Closure of one lane
• Duration: until June 23, 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: until 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 are asked to use the detour and, due to space constraints, not to park bicycles on the sidewalk.

K 12

• Type: Full closure
• Location: between Closewitz and Cospeda
• Duration: until July 10, 2026
• Reason: Road surface repair
• Details: The detour goes 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: until December 31, 2026
• Reason: Civil engineering work and construction site traffic
• Details: The construction site can be bypassed via Helmholtzweg.

Naumburger Straße

• Type: Full closure
• Location:From the Jena city limits to the junction with Carl-Orff-Straße Süd
• Duration: Phase 1 until November 30, 2026
• Reason: Extensive infrastructure project (road, sidewalk, and bike path renovation; utility lines; tram 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 info on the project: jena.de/ausbau-jena-nord

Remderodaer Straße

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

Sankt-Jakob-Straße

• Type: Full closure of the southbound lane
• Location: betweenKritzegraben and Spittelplatz
• Duration: until 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: until 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 loop 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: until 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 pedestrian and bicycle traffic.
  • Phase 4 (April 13 to June 26, 2026):Closure of the outbound lanes; traffic will be diverted to the opposite direction.
  • 5th construction phase (June 27 to September 20, 2026): Closure of the lanes heading into the city; traffic will be diverted to the opposite direction.