Mini-Span Bridges

Armtec Mini-Span is a pre-assembled and pre-engineered open-bottom corrugated steel arch, designed for a range of spans, covers and live loads. The Mini-Span was developed in the late 1990s as an economical and quick installation solution for crossing environmentally sensitive streams on resource roads. Since then, its market has grown to include municipal and highway bridge applications and crossings over buried utilities such as sewer lines and natural gas lines.

Product Features

• 100% open-bottom structure – provides a clear span across the creek, creating a “fish-friendly” bridge that preserves the aquatic habitat
• Long barrel length allows expansive road width and improved driver safety
• Factory-installed steel footings
• Pre-assembly at the factory means reduced installation costs and time
• Lightweight and simple to install
• Versatile
• Durable
• Rugged
• Reusable

Typical Applications

• Logging road culverts and bridges
• Secondary highway culverts and bridges
• Municipal creek crossings
• Utility crossings
• Hiking trails
• Park access roads

Specifications

• Mini-Span I – up to 20m long, 68mm x 13mm corrugated galvanized steel
• Mini-Span II – up to 20m long, 152mm x 51mm corrugated galvanized steel
• Mini-Span III – 7.45m long, 152mm x 51mm corrugated painted steel in heavy-duty 7.0mm plate
• Mini-Span IV – 7.31m long, 19mm plate steel painted
• Factory-installed headwalls are standard on Mini-Span III and IV, and optional on Mini-Span II