AmericasMart Expansion - Atlanta, Georgia
This project consists of extensive environmental site assessment and remediation for 1.5 million square feet of expansion to AmericasMart in Atlanta, Georgia. With a visionary client who was persistent and determined to reclaim this valuable property and reintroduce it into Atlanta’s economic infrastructure, Willmer was selected to strategically plan, implement and facilitate asbestos, lead-based paint and petroleum hydrocarbon assessments, on-site remediation and a geotechnical investigation for the GiftsMart expansion to achieve the client’s goal.
Willmer completed a multi-task scope of work that included a Phase II Environmental Site Assessment, specifications and contract documents, asbestos and lead-based paint abatement monitoring, management of an on-site source removal, subsurface exploration, geotechnical engineering evaluation, and quality assurance testing during foundation construction. With Willmer’s guidance and support the client was able to facilitate negotiations for cost allocation of remediation activities with the original transportation terminal’s operator. Willmer’s systematic approach allowed seamless transitions throughout the project, providing significant cost benefits to the owner. The ability to promptly respond to cost and schedule impacts such as the implementation of an abatement controlled roof collapse, collection and treatment of impacted ground water during the excavation of contaminated subsurface soils, and value engineering during soil removal activities and foundation construction were project hallmarks.
Hartsfield Jackson Atlanta International Airport 5th Runway - Atlanta, Georgia 
Hartsfield-Jackson Atlanta International Airport, the world’s busiest airport, is currently undergoing a $5.4 billion expansion. The expansion program includes a new 5th runway and taxiways.
Willmer provided geotechnical engineering services for the following projects associated with the development of the 5th Runway.
ô Phase II site preparation for design of the eastern half of the proposed runway (3500 feet) and interconnecting taxiways W and Z. Services included analyses for primary and secondary total and time-rate of embankment settlements, slope stability evaluation for fill slopes, MSE retaining walls, and vertical and lateral pressures on two buried tunnel structures.
ô Analysis of settlements during runway embankment construction (19 million cubic yards) and development of an acceptance specification for embankment fill.
ô In-situ CBR and plate load tests performed on runway and taxiway subgrade confirm design modulus was available.
ô Soil survey for relocation of Sullivan Road.
ô Monitored pile driving for the installation of the Sullivan Creek trunk drainage culvert. More than 1100 steel H-piles were installed within a two-week period to reduce construction schedule.
ô NLVR tunnel under taxiways W and Z and associated ARRF bridge and ramps.