Bridges and viaducts

Structures

Almere has about 500 structures (mostly bridges and viaducts) under management. These are divided into approximately 310 concrete objects, 30 languages ​​and 160 wooden objects. The concrete and steel structures have a remaining life of at least 25 years.

In recent years, though several wooden bridges replaced with new bridges. In new buildings or not carried out with steel and / or plastics (composite bamboo), or they will have a concrete implementation. Also, in the context of affordability of the management task views that bridges can be demolished and no longer need to come back. On average Almere expects to demolish the coming years 6 to 8 wooden bridges per year, part of which is therefore not replaced.

Residues from demolition wood bridges

Depending on the design of the bridge is wood and concrete (foundations) free. As an indication can be said that the demolished chases Blue Bridge had a concrete base of 21 m3 and a wooden superstructure of 16 m3 Azobé. The amount of waste streams are strongly dependent on the bridge length, and the state of the material.

Residues from daily maintenance wooden bridges

At the daily maintenance has replaced the contractor deck planks approximately 2500 meters in 2016. These are boards that are locally worn or broken. This 2500 meter deck planks have been removed and this requires new delivered.

Costs for municipal waste residues

At current contractors to interrogate a total package is required. The contractor must take into account accessibility and o.a.de example, taking traffic measures. These costs are therefore included in the total cost. The removal and processing of the Dukdalf Bridge and chases Blue Bridge (both concrete foundation and wooden superstructure), the municipality have approximately € 18.000,- cost per bridge.

The next two bridges could support the church as part of the specifications, so the implementation costs and overheads and example traffic measures will be charged separately. The removal and processing of the Zeist Bridge and the Bridge Handball (both whole wood and part of specifications), the municipality of approximately € 4,000,- cost.

Proceeds from these waste streams

As the income from these bridges, is for the church not be traced. In conversations with contractors is clear that this varies greatly per demolished bridge. The one bridge is practically not suitable for re-use, another bridge some parts can be reused.

Contracts maintenance and replacement bridges

Until now the municipality mentions in specifications, that released material is to be reverted to the contractor and that the material is suitable for reuse. This is for the municipality the cheapest way. If the municipality will provide that reusable parts have to be removed separately would cost extra.

Next year there will be a replacement of a bridge whose deck has been renewed some years ago. Therefore is indicated that the contractor must dismantle this part consciously and discharge into the depot of the contractor carrying out daily maintenance. These boards are then reused by the contractor carrying out daily maintenance.

Municipal ownership

It is good to realize that these quantities just go about municipal ownership. Works of Public Works or the province are not included here.