Jena Construction Site Report for Calendar Week 39 (September 21–27, 2026)

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

New Closures / Disruptions

At Erlkönig/Robert-Büchler-Weg/Am Ostbad (sidewalk/bike path)

• Type: Temporary full closure of the pedestrian/bike path
• Duration: September 21–25, 2026
• Reason: Tree maintenance
• Details: Pedestrians and cyclists can bypass the closed area by using Am Erlkönig.

Announcements/Notices

Südbad Parking Lot

• Type: Temporary full closure
• Duration: September 20, 2026, from 8:00 a.m. to 5:00 p.m.
• Reason:Regional soccer league game
• Details: Despitethe parking lot closure, the Südbad and the beach bar will remain open as usual from 10:00 a.m. to 6:00 p.m. All visitors are asked to use public transportation if possible, or to walk or bike to the venue.  

Maua Industrial Park 

• Type: Alternating full closures of the ramps
• Duration: October 5 through 23, 2026
• Reason: Repair work
• Details: Traffic will be rerouted.

Completed Closures

Complete closure of railroad crossings on Brückenstraße and Am Steinbach

• Track tamping work will becarried out until September 20, 2026, at 5:00 a.m. One of the two railroad crossings will be closed alternately. Adetour is posted.

Sperrzeiten Bahnübergänge Brückenstraße und Am Steinbach

© Stadt Jena

Holzweg 25

• The rainwater drain has been replaced.

Wöllnitzer Straße 42

• Utility lines have been laid.

Current road closures

August-Bebel-Straße

• Type: Full closure
• Location: from house number 27a to Botzstraße
• Duration: through November 20, 2026
• Reason: major roadwork
• Details: Residents of Wilhelm-Külz-Straße can still access August-Bebel-Street. A detour is signposted. The “Norma” supermarket is accessible only on foot.

Bernhard-Schultze-Straße

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

Burgauer Weg

• Type: One-way closure
• Location: Between Mühlenstraße and the SteinMalEins all-day school
• Duration: until approximately early October 2026
• Reason:Construction of a high-pressure gas pipeline
• Details: The project will be carried out in two construction phases. 
  • Phase 2: (August 17 through early October 2026): In the area between the boathouse of the Jena Rowing and Water Sports Club and the Lichtenhainer Bridge. A temporary lane for local traffic will be provided.

Camburger Straße (sidewalk)

• Type: Complete closure of the westbound 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: 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 set-up and loading/unloading. To head out of town, the detour runs via Spitzweidenweg and Nollendorfer Street.

Eichplatz and Rathausgasse

• Type: Complete closure of parking spaces
• Duration: through September 21, 2026
• Reason: Old Town Festival
• Details:The charging stations for electric cars on Weigelstraße are available for use. 

Friedrich-Wolf-Straße / Dornburger Straße

• Type: Complete 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: Full closure
• Location: between house numbers 12 and 24
• Duration: through Dec. 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 again urged to follow the existing traffic directions at all times. There is a significant risk of serious 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 should 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 October 9, 2026
• Reason: major roadwork

Naumburger Street

• Type: Full closure
• Location: From the outskirts of Jena to the junction with Carl-Orff-Straße Süd
• Duration: Phase 1 of construction through November 30, 2026
• Reason: Comprehensive infrastructure project (road, sidewalk, and bike path renovation; utility line work; tram line extension)
• Details: The detour is extensive in both directions, starting at Camburg/Rodameuschel via the L1070 to Trotz, and from Trotz on the B7 via Bürgel to Jena. The junction with Carl-Orff-Straße South 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/bicycle path
• Location: Camburger Straße to the OBI Tunnel
• Duration: through October 31, 2026
• Reason: Expansion of the pedestrian/bike path
• Details: The detour runs through the Saalbahnhof Tunnel.
  • Another complete closure of the tunnel: October 12 through October 30, 2026—no crossing possible!

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 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.
• Phase 2 (October 15 through 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.
• Construction Phase 3 (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 full closure
• Duration: September 30, 2027
• Location: Near USV
• Details: A signposted detour for pedestrians and cyclists leads over the Lichtenhainer Bridge. 
  • Starting August 18, 2026, a narrow sidewalk will be open across the Saale Bridge. Additionalfull closures will occur depending on the work to be carried out.

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 September 25, 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 October 2, 2026
• Reason: Road resurfacing
• Details: Traffic delays are expected.
  • Properties and parking spaces remain accessible.
  • The full closure at 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 course are intended to improve drivability. The construction project is divided into two phases. 
  • Phase 1: House numbers 34 to 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 construction work (gas and electrical)
• 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 rerouted to the opposite direction.