07-09-18 Drainage and Flooding Committee Meeting

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IML The taxiway has previously had significant crack sealing east of TW B to opposite Apron 1 connector at Taxiway A3. Taxiway edge lighting is at maximum allowed distance from edge of pavement; so moving the pavement edge in cannot be done without violating design criteria" Taxiway T" Taxiway D is a right-angle connector taxiway that was a result of the changed alignment from old angled connector to RW 30 threshold. The taxiway was installed in 200812. The pavement surface is asphalt in good condition and does not appear to have ever been seal coated. Northwest HanparAccess Taxiway and Apron at Runway 12 On the northwest side of the airfield, a connector taxiway tying to Taxiway A serves three t-hangar buildings. While some of the pavement was installed before 1989, the hangars were constructed between 2002 and 2004. In the same 2008 project that created Taxiway D, the apron and connector was re - paved and widened to its current configuration. The pavement is in good condition and does not appear to have ever been seal coated. There is some cracking on the pavement, but it is mostly confined to asphalt joints. The aprons between the hangars are drained by a fin -type slotted drain that is flanked by concrete pavement. One end of the drain in the middle section is showing significant deterioration and is creating FOD. A total of approximately 3,100 feet of block cracking and 25 square feet of deteriorated was identified for this apron. The aprons between the T-hangars have centerline striping that ends at the fin drains. However, the clearances do not meet the standards for a taxilane. Runway 5123 The asphalt pavement surfacing on Runway 5/23 is also in good condition with limited block cracking and heavy vegetation growth into the edges of the pavement. The runway appears to have last been seal coated sometime before 2002. A total of approximately 3,000 feet of block cracking and 1060 square feet of alligator -type cracking was identified within the runway environment. The runway has five connecting taxiways, with the two end connectors also being oversize and not standard geometry. There is no significant previously placed crack sealing on the runway. The pipelines cross the runway at an acute angle north of 12/30 intersection and there is no evidence of patches or deterioration at pipeline crossings. 11 AC 150 / 5340-30H, Design for Airport Visual Aids, 7/14/2004, pg. 7. 12 Record Drawings, La Porte Airport Improvements, C.T. Brannon Corp., July, 2008 Page 111