As of: January 31, 2024, 4:22 p.m
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The pedestrian bridge over Plieninger Straße will be covered in oak.
© Photo: fu
Poing's building committee has decided: The renovation of the pavement of the pedestrian and bicycle bridge over Plieninger Straße will be done with oak wood.
Poing - The pedestrian and cycle path bridge at the sports and leisure center over Plieninger Straße was renovated in 2009, with the existing and damaged cast asphalt surface being replaced by a wooden plank surface (larch).
The use of a correspondingly low-wear and weather-resistant hardwood plank covering made of Azobè (Bongossi) was not permitted at that time.
However, further renovation was now necessary due to the current condition of the bridge deck.
But with what?
The Construction and Environment Committee dealt with this question and the associated answer at the beginning of December 2023.
Renovation of the pavement of the pedestrian bridge at the sports center in Poing: the building committee is in favor of oak wood
Dipl.-Ing. was brought in to provide competent help.
Erich Seitz (engineering office for statics and construction).
He recommended hardwood planks made from Azobè (Bongossi) - a certified tropical wood - which, on the one hand, has to withstand loads of up to four tons (crossing the bridge with clearing and spreading equipment) and, on the other hand, promises a service life of up to 25 years.
In addition, the material is just as expensive as the alternative “oak”, which only has half the lifespan.
The subsequent discussion focused primarily on the proposed material “tropical wood”, which was consistently rejected by some councils – despite the recognized certificate.
Mayor Thomas Stark ended the discussion with the order to Dipl.-Ing.
Erich Seitz to look for suitable (and cost-effective) alternatives and to present them at one of the next meetings.
The renewal of the lighting associated with the bridge renovation was also postponed.
On January 16th, the postponed topic was back on the agenda of the Construction and Environment Committee.
To this end, the administration and the Seitz engineering office presented a detailed lecture on the materials in question.
If oak (approx. 120 to 150 years old) was used, the material price (approx. 1,900 euros/m³) would be twice as expensive as Bongossi hardwood and oak also has a shorter lifespan.
Walaba (“reservoir wood”), Iroko (kembala) and GRP (glass fiber reinforced plastic) were not recommended by the administration and Seitz office because they were also too expensive and because of problematic delivery times.
Both spoke out in favor of Bongossi hardwood in a statement.
In the subsequent discussion, the committee decided in favor of oak.
Everyone also agreed on the postponed bridge lighting version: white, insect-friendly LED strip lights on the railing.
(
fu
)