The portal to a culvert used to take watercourses through railway embankments in NSW. The portal has a wing wall projecting at 22 degrees from each side. The wing walls prevent embankment erosion around the upstream portal during floods.
In the late 19th and early 20th centuries stone masons were employed to shape sandstone for culvert portals and tunnel lining.
This culvert is 5ft wide at its base.
Associated assets are:
<kuid:368725:20494> 'NSW culvert portal, cut sandstone, 5ft aperture' For downstream portals.
<kuid:368725:30161> 'NSW culvert wing retaining wall spline, sandstone, 10ft tall, right fill'
<kuid:368725:30162> 'NSW culvert wing retaining wall spline, sandstone, 10ft tall, left fill'
<kuid:368725:30163> 'stone sediment, lightly grassed, 11m wide (dry water course spline)' Used to cover the portal dighole's horizontal component.
<kuid:368725:30163> 'stone sediment, lightly grassed, 14m wide (dry water course spline)'.