Specifications include, but are not limited to: Description of work: Hangar Area Improvements Base Bid – Reconstruct Existing Hangar Area Pavements Alternate Bid #1 – Construct New Hangar Development Area and Access Road Grading Base Bid: Removing asphaltic surface 15,800 SY; excavation common 18,500 CY; base aggregate dense 1 ¼-inch 4300 CY; HMA pavement 5050 TON; culvert pipe class III-A non-metal 178 LF; apron endwalls for culvert pipe 6 EACH; storm sewer pipe class III-A 670 LF; catch basins 4-ft diameter 5 EACH; salvaged topsoil 14,000 SY; mulching, method B (wood fiber) 14,000 SY; erosion mat 6,000 SY; electrical duct, type II, 3-inch, 2-way 200 LF; taxiway A circuit modifications 1 LS. Alternate Bid #2 – Rehabilitate Hangar Area Access Road Alternate Bid #3 – Construct New Hangar Access Road Pavements Alternate Bid #4 – Construct New Taxilane Pavements