Scratch-build a NSW Timber Road Overbridge
Preparation
The plans can be scanned or photocopied [Editor’s note: To ensure correct measurements, do not scale.] to produce templates that can be used to fabricate the various bridge components. A scale guide is also provided to ensure the template (drawings SK02 or SK03 as applicable) is to the correct scale.
1. Print the template and place it onto the foam block or board. Secure it into position by inserting 50 mm T-pins in the locations marked on the template. This will not only hold the template to the foam, but will also provide markers to show where the timber pieces need to sit when assembling the bridge parts.
2. Ensure all timber components are straight and reasonably smooth. If there are any rough edges, they can be gently passed through a piece of steel wool or a scouring pad
