Jena Construction Site Report for Calendar Week 42 (October 12–18, 2026)

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

New Road Closures / Traffic Disruptions

Ammerbacher Street

• Type: One-way closure
• Location:between house number 101 and the intersection with Winzerlaer Straße
• Duration: October 14–16, 2026, daily from 8:00 a.m. to 3:00 p.m.
• Reason: Tree maintenance

Kahlaische Street / Mühlenstraße

• Type: Various closures
• Duration: October 12 through November 6, 2026
• Reason:Track renovation
• Details: Mühlenstraße will be completely closed. One side of Kahlaische Straße will be closed. A one-way street will be established in the direction of downtown. Traffic heading out of town will be rerouted via Ernst-Haeckel-Straße – Westbahnhofstraße – Magdelstieg – Tatzendpromenade – Hermann-Löns-Straße, and Winzerlaer Straße. Pedestrians can pass through the construction zone. The detour for bicycle traffic will be signposted.

Saalstraße

• Type: Temporary full closure
• Location: Near house numbers 9 to 10
• Duration: October 12 through November 6, 2026
• Reason: Work on the district heating pipeline
• Details: As part of the construction process, there will be a temporary full closure lasting 3 to 4 days. The detour for motor vehicles will be via Unterlauengasse. The detour for pedestrians and cyclists will be signposted.

Umleitung Fuß-/Radverkehr Saalstraße

© Streicher

OBI Tunnel (No passage allowed!)

• Type: Another full closure
• Location: Camburger Straße up to the OBI Tunnel
• Duration: October 12–30, 2026
• Reason: Major renovation of the pedestrian/bike path
• Details: Traffic will be rerouted via the Saalbahnhof Tunnel. The route will reopen on October 31, 2026.

Announcements/Notices

Eisenberger Straße

• Type: One-way closure
• Location: Near the gas station in Wogau (B7)
• Duration: October 22–23, 2026
• Reason: Resurfacing of the roadway
• Details: Traffic is controlled by a traffic light.

Completed closures

Maua Industrial Park 

• Repair work has been completed.

Fürstengraben

• The problem has been resolved.

Current road closures

August-Bebel-Straße

• Type: Full closure
• Location: from house number 27a to Botzstraße
• Duration: through October 30, 2026
• Reason: Major roadwork
• Details: Residents of Wilhelm-Külz-Straße can still access August-Bebel-Straße. A detour is signposted. The “Norma” supermarket is accessible only on foot.

Bernhard-Schultze-Straße

• Type: Full closure
• Duration: through November 27, 2026
• Reason: Major road reconstruction including 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

Camburger Straße (sidewalk)

• Type: Complete closure of the western sidewalk
• Location: From the intersection with Leipziger Straße to across from the garage complex
• Duration: through October 14, 2026 
• Reason: Civil engineering work
• Details: Pedestrianand bicycletrafficwill bererouted via Fritz-Kalisch-Straße.

Carl-Zeiss-Platz

• Type: Complete 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 heading into town. 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.

Göschwitzer Straße

• Type: Full closure
• Location: Behind the property entrance to the buildings at Göschwitzer Straße 7, 7a, and 7b, along a private road to the existing gas pressure regulation station
• Duration: Through November 30, 2026
• Reason: Gas pipeline expansion
• Details: Access to the aforementioned residential buildings will be maintained via a temporary construction road. For more information, visit www.stadtwerke-jena-netze.de/baustellen(external link)

Friedrich-Wolf-Straße / Dornburger Straße

• Type: Full closure
• Duration: through October 16, 2026 
• Reason: Renovation of the railroad crossing
• Details: The railroad crossing can be crossed on foot. The closure can be bypassed via Leipziger Straße and Scharnhorststraße.

Forstweg (bridge)

• Type: Complete 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. 
  • The pedestrian bridge may be crossed from Friday (2:30 p.m.) through Monday (7:00 a.m.).On weekdays, please use the detour via Kochstraße, Magdelstieg, and Hornstraße. 
    All road users are still strongly urged to follow the existing traffic routing at all times. There is a significant risk of injury in the construction zone due to the excavation pit.

Fritz-Reuter-Straße

• Type: Full closure
• Duration: through 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 Kronfeldstraße to Viktor-von-Scheffel-Weg
  • Phase 2: From Viktor-von-Scheffel-Weg to Tatzendpromenade

Knebelstraße

• Type: Half-lane closure in the direction of Fischergasse
• Location: Near Volksbad
• Duration: through October 31, 2026
• Reason: Construction work at the Gleisdreieck
• Details: Kahlaische Straße remains accessible. Traffic is being rerouted via Grietgasse toward Fischergasse and Löbdergraben. From Grietgasse, drivers can then only turn onto Kahlaische Straße.

Kritzegraben

• Type: Full closure
• Location: Intersection of Kritzegraben, Thomas-Mann-Straße, and Sankt-Jakob-Straße
• Duration: through October 9, 2026
• Reason: Civil engineering work
• Details: Drivers must take a wide detour around the closure.

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.

Lützowstraße

• Type: Full closure
• Location: From house number 30 to Wildenbruchstraße 25
• Duration: through December 18, 2026
• Reason: major roadwork

Naumburger Street

• Type: Full closure
• Location: From the outskirts of Jena to the intersection with Carl-Orff-Straße South
• Duration: Phase 1 through November 30, 2026
• Reason: Comprehensive infrastructure project (renovation of the road, sidewalks, 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 

Oßmaritzer Straße

• Type: Full closure
• Location: between the intersection with Helene-Weigel-Straße and the intersection with Hanns-Eisler-Straße 
• Duration: through October 16, 2026
• Reason: Civil engineering work (water main)
• Details: The detour is via Bertolt-Brecht-Straße.

Otto-Schott-Straße

•     Type: Full closure
•     Location: From Kronfeldstraße toward Schleidenstraße
•     Duration: through November 20, 2026
•     Reason: District heating expansion
•     Details: The detour runs via Magdelstieg.
  • Construction Phase 2: Viktor-von-Scheffel-Weg to Tatzendpromenade

Paradiesbrücke

• Type: Closures of tracks and sidewalks/bike paths
• Duration: until approx. March 31, 2027
• Reason: Renovation of the tram line
• Details: Pedestrian and bicycle traffic will be rerouted via the adjacent sidewalk on Stadtrodaer Straße. Paradies Station is accessible only via the sidewalk on Knebelstraße.
  The project will be carried out in three construction phases. 
• Phase 1 (June 29 through December 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.
• Phase 2 (Spring 2027): 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 entrance to Paradiesbahnhof—with no restrictions on local transit.
• Current information, detailed network maps, and schedule changes: www.stadtwerke-jena.de/gleisbau-paradies

Saalebrücke in Oberaue

• Type: Temporary closures
• Duration: September 30, 2027
• Location: Near USV
• Details: Closures will be implemented depending on the work to be carried out and will be announced in a timely manner. The bridge is currently open to pedestrians.

Sankt-Jakob-Straße

• Type: Full closure of the southbound lane
• Location: between Kritzegraben and Spittelplatz
• Duration: through December 31, 2026
• Reason: Major redevelopment of the area
• Details: The pedestrian and bike path is being rerouted via Philosophenweg toward Sankt-Jakob-Straße. Kritzegraben, Am Planetarium, and Sophienstraße remain fully open to traffic.

Stauffenbergstraße

• Type: Temporary full closures
• Location: Between house numbers 1 and 13 and the adjacent Fritz-Ritter-Straße
• Duration: through October 31, 2026
• Reason: Underground electrical work
• Details:Traffic will be rerouted via the adjacent road network.

Theobald-Renner-Straße

• Type: Partial closure and full closure
• Duration: through November 30, 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.

Thomas-Mann-Straße

• Type: Change in traffic routing
• Location: between Nollendorfer Straße and Hufelandweg
• Duration: through October 30, 2026 
• Reason: Complete road reconstruction
• Details: The removal of the natural stone paving and the installation of a new bituminous surface layer are intended to improve drivability. The construction project is divided into two phases. 
  • Phase 1: House numbers 34 through 23a
  • Phase 2: House numbers 23a to 3 
  • The one-way traffic regulation will be suspended so that properties not located within the construction zone can be accessed. 

Tümplingstraße

• Type: Full closure
• Location: From house number 1 to the intersection with Tautenburger Straße
• Start: September 8, 2026
• Reason: Underground utility work (gas and electricity)
• Details: The detour runs via Charlottenstraße and Schlippenstraße.

Wöllnitz Pedestrian Bridge

• Type: Restrictions and closures
• Location: Near Stadtrodaer Straße
• Duration: through October31, 2026
• Reason: Bridge renovation
• Details: The project will be carried out in 5 construction phases. During the 5th phase, the bridge will be closed to pedestrians and cyclists.
  • Phase 5 (June 27 through October 31, 2026): The lanes heading toward the city center will be closed; traffic will be diverted to the opposite direction.