As part of the Lambert International Airport expansion, Kolb Grading delivered significant cast-in-place structures, including 86 design-build, aircraft-loaded cast-in-place structures and 28,000 linear feet of storm sewers ranging from 15 to 84 inches. The work, performed within the Airfield Operations Area around an active maintenance facility, also included a 55-foot-tall cast-in-place storm structure, a 500-foot box culvert, and a paved swale, with careful sequencing of new and abandoned utilities while mitigating drainage problems left by another contractor.
Scope of Work
- 28,000 lf of storm sewers ranging from 15” to 84” RCP
- 86 design-build, aircraft-loaded cast-in-place structures
- Modification to contract for a 55’ tall cast-in-place storm structure (reassigned from other contracts)
- 500’ 8 x 21 cast-in-place box culvert
- 1,600 sy paved swale
- Worked within the Airfield Operations Area (AOA) and around an active maintenance facility
- Mitigated drainage problems created by another contractor
- Sequenced installation of new utilities and abandonment of existing utilities