The big semicircular trestle and the old one it replaced. It's made from wood tomato stakes, on a 1m radius curve.

A timber truss made from tomato stakes. 1.3m long. It's been outside for 16 years now. Piers are Hebel.

My first bridge. A steel arch made from the curved tops of my old above ground swimming pool and some flat bar. 2m long

A styrene 'girder' over tomato stakes.

Timber truss similar to number 3.

This is the biggest bridge - the 'horseshoe' trestle. It's made of tomato stakes driven into the dirt and is 1.2m (4') high, on a 2m radius curve. After 10 years the posts are rotten in the ground and I concreted the remaing 'stubs' in.

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The 4m long girder bridge. It's actually a piece of 4"x3" timber with fibro sides and small plastic angle irons added. The depth of the girder is too small for the span and it really should have a centre pier - some day!

A small bridge at Sandstone, from plastic sheet.

2.8m long girder from old swimming pool tops. "temporary". But next to an ugly fence, why waste time on a good bridge?

Double steel arches from old pool parts.

More old pool parts on 90mm dia plastic stormwater pipes piers. Those piers are just too close together to get my mower between them !

Just a piece of 3x2" timber at present. Will be a major bridge someday.

The girders are aluminium from an old flyscreen door. Again it's too long for realism and needs a central pier.

The Lilyvale 'sandstone' viaduct is made from Hebel lightweight concrete. It is 5m (15') long and around 400mm high. The stones are scribed on the Hebel with an old screwdriver. It is now 10 years old and almost every arch has cracked but surprisingly, not at the top. But it's still standing.

closeup of arches.

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