Tenders Are Invited For Modernization Of The Bridge Surface Over The Nysa Szalona River To Road Plot 220/1 Rev. Zębowice, Paszowice Commune.

In Order To Ensure Continued Safe Operation Of The Bridge, Renovation Works Are Necessary To Improve The Condition Of The Structure. The Renovation Will Not Change Its Dimensions. The Elevation Of The Bottom Of The Structure Will Be The Same As Before. The Scope Of The Renovation Requires The Following Construction Works.1. Bridge Deck. The Existing Beams Should Be Dismantled And Replaced With Oak Structural Wood With A Moisture Content Of Less Than 20%. And Cross-Section 18X18 Cm. The Wood Must Be Impregnated. The Impregnation Should Guarantee Compliance With The Requirements In Terms Of Protection Against Moisture, Fire, Insects And Fungi. The Wood Should Be Impregnated Thoroughly And Effectively In The Following Order: - Fobos M-4 Penetrating Salt Agent - Pressure-Vacuum Impregnation - Vattibase (Tikurila) Priming Agent (Tikurila) Or Another Agent With Similar Parameters - Painting - Matte Wood Impregnation Agent Vallti Kolor (Tikkurila) Or Another Agent With Similar Parameters. The Beams Should Be Fastened Using Screws With Dimensions 8X70 Mm And Center Backing. 50Mm And Thickness 5 Mm For I-Beams 400 (Drawing No. 3)2. Balustrade. Deflections Caused By The Falling Tree Should Be Removed And The Missing Balusters Should Be Replaced. The Layers Of Paint Should Be Removed And Painted Again With An Anti-Corrosion Primer And Then With An Anti-Corrosion Topcoat. On The Side Of The District Road, The Balustrades Should Be Extended By 2.3 M3. Bridge Pillars. Fill In Any Gaps In The Joints On An Area Of ​​Approximately 10 M2.Access To The Bridge. From The District Road, The Access Road With A Granite Pavement Does Not Require Renovation. On The Other Side Of The River, The Approach To The Bridge Needs To Be Demolished; Make A New Foundation And Re-Lay The Granite Cubes.