b'RUNWAYSMTN69associate and technical manager of Aviation with Michael BakerConstruction. Because the asphalt sat on International. The chosen approach balanced durability with thetop of a structurally sound concrete base, need to limit extended runway closures, he adds.additional strengthening was not needed; Engineers also used mobile LiDAR to capture high-resolutioninstead, the focus was on achieving proper survey data during one of the overnight runway closures. Thisgrades. Adjusting the runway grades, in turn, allowed the design team to generate highly accurate base mapsrequired reworking the profiles of connector and align the rehabilitation plan precisely with existing conditions,taxiways to match the new elevations. Kolb explains. Using LiDAR accelerated design development andGrading also directly affected the fit of newTOM VARUGHESEminimized the risk of conflicts during construction, especially inedge lighting and, ultimately, reopening the runway on time after areas where geometry and grading adjustments were critical tothe 21-day closure. The contractor, construction manager, design meeting FAA and Unified Facilities Criteria standards. team and Aviation Administration worked together closely and continually reviewed survey data against the planned lift sequence. Complex Scope and Circumstances Adjustments were made in real time and relayed to field crews to Rehabilitating Runway 1533 and other associated improvementskeep paving work on schedule and finish with grades that matched presented a series of challenges from planning throughdesign specification. construction. With cross-slopes measuring less than 1% in manyContractors got a jump on the overall areas, the runway had long suffered from inadequate drainage. Toproject schedule by installing the duct bank correct the issue, designers raised the centerline area to improveearly since it is outside active runway and water runoffan adjustment had to be planned carefully. Thetaxiway areas. Completing this work in raised profile of the runway also had to be balanced with theadvance of the spring start for night closures asphalt material cost to build the runway higher, so the projecttook some construction tasks off the to-do budget was not exceeded, notes Tom Varughese, director oflist, recalls Mark Tiger, construction manager the Maryland Aviation Administration Office of Engineering andwith Johnson, Mirmiran & Thompson. ThisMARK TIGER WE GET IT. YOURE BUSY!The bidding processis a pain - but withNASis Sourcewell contract, the runway de-icer qualification process has already been done for you! VISIT US: nasi-tm.comContract # 110122-NCH800.622.4877 x310 nasi_cs@nasindustrial.com SCAN TO LEARN MORE 2024Nachurs Alpine Solutions.All rights reserved.AirportImprovement.comOctober 2025'