Tonkin has a long, successful history in aerodrome design and construction, dating back to the original Kangaroo Island Airport upgrade in 1984.

Services and expertise
- Feasibility studies and funding applications
- Design of airside infrastructure including runways, taxiways and aprons
- Design of landside infrastructure including terminals, carparks and access roads
- Pavement and geotechnical investigations
- Upgrades and extensions to accommodate larger aircraft
- Stormwater infrastructure
- Independent design verification
- Condition assessments, maintenance planning and asset management.