Probe into Markkleeberg's Pleißbrücke Incident
News Article: Special Inspection Planned for Pleisse Bridge in Markkleeberg
A special inspection will be conducted on the Pleisse Bridge in Markkleeberg, Germany, from August 20th to 21st, 2025. This inspection, which is an addition to the regular bridge inspection, aims to detect any potential risks early.
The Pleisse Bridge, a prestressed concrete bridge built in situ, is particularly susceptible to a specific type of stress corrosion cracking (SCC) known as chloride-induced SCC. This occurs due to the presence of chlorides, often from deicing salts used in winter or environmental sources, which can penetrate protective coatings and promote SCC under tensile stress conditions.
To ensure safety during the works, a half-lane closure of the S 46 is required. Traffic will be diverted around the construction area on the Pleisse Bridge. The closure times are scheduled for specific hours on August 20th and 21st to minimise disruption to peak hour traffic.
During the inspection, building material samples will be taken from the bridge. The focus will be on assessing the bridge's underside and sampling prestressing steel, grout, and concrete. The samples will then be analysed in a laboratory.
The half-lane closure is necessary to allow for the necessary tests and inspections. Combining both inspections allows for an efficient use of traffic closure and equipment.
Motorists are advised to avoid the area during the inspection period. For those who must travel, please be aware of the diversion routes and allow extra time for your journey.
This special inspection on the Pleisse Bridge is due to concerns about potential stress corrosion cracking in the prestressing steel. The inspection is crucial to maintaining the safety and integrity of the bridge, ensuring it continues to serve the community effectively.
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