Repair Airstation Aircraft Aprons

FINAL DESIGN

DEPARTMENT OF HOMELAND SECURITY
UNITED STATES COAST GUARD
SHORE MAINTENANCE COMMAND

TECHNICAL SPECIFICATIONS
FOR REPAIR AIR STATION
AIRCRAFT APRONS
U.S. COAST GUARD STATION BASE ELIZABETH CITY
ELIZABETH CITY, NORTH CAROLINA

REVISED SEPTEMBER 2016

COMMANDING OFFICER
UNITED STATES COAST GUARD
CIVIL ENGINEERING UNIT, RM 2179
1240 EAST NINTH STREET
CLEVELAND, OHIO 44199-2060

AUTHOR:

Michael Baker International
Airside Business Park
100 Airside Drive
Moon Township, PA 15108
DIVISION 1

SECTION 01 11 00
SCOPE OF WORK

1. WORK INCLUDED: Major items of work shall include the following:

1.1 Base Item #1: Reconstruct Taxiway H as indicated on the drawings. The reconstruction of this area includes the removal of the existing pavement structure to subgrade and the construction of a new jointed Portland cement concrete (PCC) pavement including the underlying aggregate layers as indicated on the drawings. This reconstruction also includes the replacement of the existing storm pipes under the taxiway pavement as indicated on the drawings. Provide a new terminal fence post with fittings at the end of the fence removed as shown on drawing C-203. Existing fabric shall be attached with a new tension bar.
1.1.1 Basis for Design: The pavement design was performed using the Pavement-Transportation Assisted Structural Engineering (PCASE) program version 2.09.04 in accordance with UFC 3-260-02, utilizing the geotechnical information determined from borings of the project area.
The traffic used in the design of this pavement is as follows:
C130J - 1,087 operations
C130H - 14,228 operations
C27 (HC-144) - 16,738 operations
1.2 Base Item #2: Reconstruct portion of the Air Station Apron as indicated on the drawings. The reconstruction of this area includes the removal of the existing pavement structure to subgrade and the construction of a new jointed Portland cement concrete (PCC) pavement including the underlying aggregate layers as indicated on the drawings.
1.3 Repair of concrete pavement in select areas of the Air Station Apron as indicated on the drawings. These repairs include; sealing of cracks, partial and full-depth patching, and isolated slab replacement.
1.4 Rehabilitation of the ALC Apron as indicated on the drawings. The rehabilitation of the ALC Apron includes the removal and replacement of 2" of the bituminous surface and isolated repairs of the underlying PCC surface. This rehabilitation will include replacement of 400 square feet of isolated areas of the underlying concrete. The contractor shall sawcut around the existing double-wide trailer located at the northeast corner of Building 79 and remove pavement to the sawcut edge. New paving shall be accomplished over all areas as indicated on contract drawings.
1.5 Base Item #3: The reconstruction of a portion of Ptero Roost Road and the parking lot that is between Buildings 49 and 53 as indicated on the drawings. The reconstruction of this area includes the removal of the existing pavement structure to subgrade and the construction of a new jointed Portland cement concrete (PCC) pavement including the underlying aggregate layers as indicated on the drawings. This reconstruction will also include the installation of a storm drainage system for the parking lot area. The contractor shall perform exploratory excavations to determine the exact locations of utilities in the area. Additionally, placement of the new drain shall be accomplished in a manner to inflict minimal damage on the root system of the large tree in the area. The contractor shall also measure invert elevations and determine the exact placement and slope of the new pipe.

1.6 Unit Work Item #1: Provide a unit work item for the replacement of 100 square of underlying concrete in the ALC apron at tiny_mce_marker____ per square foot for a total of tiny_mce_marker_____.
1.7 Unit Work Item #2: Provide a unit work item for an additional 10 tons of asphalt in the ALC apron at tiny_mce_marker_____ per ton for a total of tiny_mce_marker______.
1.8 Unit Work Item #3: Provide a unit work item for an additional 20 square yards of PCC in the Air Station Apron at tiny_mce_marker_____ per cubic yard for a total of tiny_mce_marker______.
2. Work associated with these items is described in the following specification sections and/or is shown on the contract drawings. Incidental work items not listed above and necessary for completing the project shall be included