Bridges

Rock Bags for Bridges

A 2 tonne rock bag has excellent scour and erosion properties in velocities up to 4.7m/sec and up to 5.3m/sec for the 4 tonne rock bags.

• Easily removed and re-installed for preventative maintenance inspections
• Rapid deployment
• Can be lifted out for bridge inspections
• No foundation works required
• Single point lifting system
• Supports vegetation growth
• Lifetime 50 years in water
• Lifetime 30 years against UV rays

Gilbert River, North Queensland. Access was tight, no problems. Crocs around, problem.

Gilbert River - rock bags preventing scouring at the bridge pylons.

Gilbert River - rock bags preventing scouring at the bridge pylons.

Road bridge in Brisbane, with rock bags used on both embankments and around the central pylon.

rockbags protect a bridge in NSW

rockbags protect a bridge in NSW, view from above

Bridges Renewal Program - Gympie, Qld.Kyowa rock bags used for coffer dam and embankment erosion.

BEFORE: bridge scour protection, Russell River, North Qld

DURING: bridge scour protection, Russell River, North Qld

AFTER: bridge scour protection, Russell River, North Qld

Rock bags providing scour protection at the Coondoo Bridge

Rock Bags - foot protection

rock bags provide bridge pylon and bank wings protection

The rock bags are easily placed and have excellent resistance to river water.

By pass using steel LD pipe and rock bags for local bridge works.

Rock bags used to to reclaim land for bridge pylons and also as bank erosion protection.

The rock bags have a lifetime minimum of 30 years against UV rays.

Qld, Australia - highway bridges renewal program.Kyowa rock bags used for coffer dam and embankment erosion - 2 uses in 1.

Rock Bags - pylon scour protection

Gympie, Qld, Australia - highway bridges renewal program.Kyowa rock bags used for coffer dam and embankment erosion - 2 uses in 1.

Rock Bags - river bank lining

Rock Bags - step piling