Jena Construction Site Report for Calendar Week 37 (September 7–13, 2026)

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

New Closures / Traffic Disruptions

Eichplatz and Rathausgasse

• Type: Complete closure of parking lots
• Duration: September 7–21, 2026
• Reason: Old Town Festival
• Details: The charging stations for electric cars on Weigelstraße can be used. 

Federal Highway 7

• Type: One-way closure
• Location: Between the Gembdenbach intersection and the Eschenplatz intersection
• Duration: September 7, 8:30 a.m. through September 9, 2026, 3:00 p.m.
• Reason: Tree maintenance
• Details: Traffic is controlled by a traffic light.

Friedrich-Wolf-Straße / Dornburger Straße

• Type: Full closure
• Duration: September 7 through October 2, 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.

Thomas-Mann-Straße

• Type: Change in traffic routing
• Location: between Nollendorfer Straße and Hufelandweg
• Duration: September 7 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.

Wöllnitzer Street

• Type: Full closure
• Location: Near house number 42
• Duration: September 7–18, 2026 
• Reason: Underground construction work (utility installation)
• Details: The detour is signposted.

Announcements/Notices

Holzweg

• Type: Complete closure
• Location: House number 25
• Duration: September 14–15, 2026 
• Reason: Civil engineering work (replacement of the storm drain)
• Details: A traffic light will direct traffic across Ziegenhainer Straße. Bus line 23 will not operate during the closure.

Completed Closures

Mühlenstraße 135

• Roof work has been completed.

Wenigenjenaer Ufer

• Civil engineering work on the gas line, including a pressure test, has been completed.

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 posted. The “Norma” supermarket is accessible only on foot.

Bernhard-Schultze-Straße

• Type: Full closure
• Duration: through October 2, 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

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 Lichtenhain Bridge. A temporary lane for local traffic will be provided.

Camburger Straße

• Type: Single-lane closure and sidewalk closure
• Location: Near the Aral gas station
• Duration: Through September 11, 2026
• Reason:Civil engineering work
• Details:A traffic light is controlling traffic. The sidewalk near the pedestrian traffic light will be closed. Pedestrians will be rerouted via the traffic light at the intersection of Camburger Straße and Scharnhorststraße.

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 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.

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 current traffic directions 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 posted.
  • 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 diverted 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 September 11, 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 zone 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 Jena city limits to the intersection with Carl-Orff-Straße Süd
• Duration: Phase 1 through November 30, 2026
• Reason: Comprehensive infrastructure project (renovation of the road, sidewalks, and bike paths; utility lines; tram 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 and 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 the 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. The Paradies station is accessible only via the sidewalk on Knebelstraße.
  The project will be carried out in 3 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 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 network.
  • 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. 
  • A narrow sidewalk across the Saale Bridge is expected to be available starting August 18, 2026. 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: Half-lane closure and full closure
• Duration: through October 2, 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: through September 12, 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 September 12, 2026): The lanes heading toward the city center will be closed; traffic will be diverted to the opposite direction.