Amendment 3-P-204_Site Investigation Report.pdf

Subject: P-204 Site Investigation Report

Field Work Dates: January 8, 2018

Location: Project Site – Cherry Point

1.0 EXECUTIVE SUMMARY

With the anticipated bed down of numerous F-35 squadrons on base, there has been a new mission requirement established for the respective trainers to be located in a new facility on MCAS Cherry Point. Six full mission simulators (FMS) will be housed within the confines of this new building structure, and eight MRDs which will be located at the exterior of the building on a sheltered tactical pad.

Various existing mission requirements are to be relocated under this project including both the Aviation Training Systems (ATS) and Marine Aviation Training Support Squadron (MATSS) group from Building 286, and the Night Imaging and Threat Evaluation (NITE) Lab from Building 4055.

Building 4038 and 4162 currently occupy the proposed site of the new training facility, and will need to be demolished. In addition to Buildings 4038 and 4162, Building 286 indicated above will also be demolished under this project. All three buildings are of reinforced masonry construction.

The purpose of this site investigation report is to sufficiently convey the extent of demolition for these three existing facilities. In addition, it will also serve to document any relevant information discussed with the activity / user regarding relocation of services, equipment, and any pertinent personnel or requirements associated with the missions to be relocated to the new facility

1.1 CIVIL

1.1.1 FIELD OBSERVATIONS

The investigation included surveying the site conditions of the P-204 development site and the Building B286 site to be demolished. The P-204 development site contains two buildings to be demolished in this project (B4038 and B4162), one temporary building (T4221) to be removed by others and Building B4221 that is to remain.

Building B286 Site

The Building B286 site is approximately 2 acres and is located at the corner of D Street and 4th Avenue southwest of the main site. A pedestrian corridor and fire truck lane is west of the site (formerly D Street). Parking lots surround the building along the northeast, southeast and southwest. The southern parking lots are accessed from 4th Avenue to the southwest and the northern parking lot is accessed from an adjacent parking lot to the north.

The site is relatively flat with minor slopes to on-site storm drain inlets and open ditches. The site was snow covered at the time of the field investigation but there did not appear to be any significant ponding occurring. The asphalt parking lots were cracked and had several pit and trench patches throughout.

Utilities serving the building are Water, sanitary sewer, electric, communications, steam and storm drain.

Water service to the building appeared to be from a water main along 4th Avenue. Sanitary sewer service appeared to be from a manhole and gravity main to the north in the adjacent parking lot. A transformer and electric manhole is located at the eastern corner of the building. It was unclear where the communications enter the building or where the main is located. Steam service is from a main traversing the south side of the site. A main steam pit is located at the south corner of the site between the two parking lots. A steam pit for the lateral serving the building is located adjacent to the building along the southeast wall.

P-204 Site

The P-204 site is approximately 6 acres and is bordered by 6th Avenue to the northeast, C Street to the southeast, 5th Avenue to the southwest and D Street to the northwest. The site currently contains buildings (Buildings B4038, B4162, B4221 and T4221), parking lots, concrete apron storage yards and fencing and utilities serving the buildings. Above and below ground utility mains are located along 6th Avenue, 5th Avenue, C Street and D Street. These utilities include water, sanitary sewer, electric, communications, steam and storm drain. The site area also includes the area behind Building B4066 at the corner of 5th Avenue and C Street. This area approximately 1 acre and currently consists of a parking lot and storage yard.

The site is relatively flat with minor slopes to on-site storm drain inlets and open ditches. The site was snow covered at the time of the field investigation but there did not appear to be any significant ponding occurring other than in an asphalt parking area at the corner of B4038, T4221 and B4221.

Utilities serving the building are Water, sanitary sewer, electric, communications, steam and storm drain.

Water service to the building appeared to be from a water main along 6th Avenue. Sanitary sewer service appeared to be from a manhole and gravity main along 6th Avenue. A transformer and electric manhole is located at the southeast corner of the B4038. It was unclear where the communications enter the buildings or where the main is located. Steam service is from a main traversing the southeast side of the site along C Street.

1.1.2 FIELD PHOTOS

Figure 1.1- P-204 Site Investigation Map.

Figure 1.3- B286 Site – Corner of 4th Ave and D St Looking Southeast

Figure 1.2- B286 Site – Corner of 4th Ave and D St Looking Northeast

Figure 1.5- B286 Site – 4th Ave Looking Northwest

Figure 7- B286 Site – East Corner of Site Looking Southwest

Figure 1.4- B286 Site – 4th Ave Looking Northeast

Figure 1.6- B286 Site – East Corner of Site Looking Northwest Figure 1.7- B286 Site – East Corner of Site Looking Southwest

Figure 1.8- B286 Site – North Corner of Site Looking Southeast

Figure 1.9- B286 Site – North Corner of Site Looking Southwest

Figure 1.10- P-204 Site – Corner of 5th Ave and D St Looking Northwest

Figure 1.11- P-204 Site – Building 4038 from Corner of 5th Ave and D St

Figure 1.12- P-204 Site – North Corner of Site Looking Southeast

Figure 1.13- P-204 Site – North Corner of Site Looking Southwest

Figure 1.14- P-204 Site – 5th Ave Looking Northeast

Figure 1.15- P-204 Site – 5th Ave Looking Northwest

1.2 ARCHITECTURAL

1.2.1 FIELD OBSERVATIONS

The architectural field investigation included the survey of buildings to be demolished in order to identify overall building footprint, construction type, and special features that will impact demolition costs.

Building survey included the following: B286, B4038, and B4162. The observations are broken up by building below.

B286 is a single-story double wythe masonry building, consisting of CMU walls with brick veneer. The architectural team verified the existing floor plans and noted any discrepancies. The renovation drawings dated 05/2007 closely matched the current conditions; however, areas outside the scope of that renovation project did not reflect the current interior layout. The overall facility layout is a rectilinear plan with interior courtyard. Overall facility height is 11’-11” to top of roof. Roof construction consists of a concrete roof slab with built-up roof system. Exterior windows and storefront doors are utilized both at

Figure 1.16- P-204 Site – 5th Ave Looking Northeast

Figure 1.17- P-204 Site – Corner of 5th Ave and C St Looking Northwest

Figure 1.18- P-204 Site – Corner of 5th Ave and C St Looking

Figure 1.19- P-204 Site – Corner of 5th Ave and D St Looking Northwast the exterior perimeter and the perimeter of the interior courtyard. Interior walls are typically of GWB/metal stud construction with a few intermittent masonry walls. There are small restroom areas throughout the building which will be noted for demolition costs. Typical ceiling construction is acoustical ceiling tiles with GWB in some areas. The ADVTE space is being relocated to the new facility; as such, the team documented existing conditions and equipment within these spaces to assist in laying out the new facility. Photos of this area were not allowed due to security.

B4038 is a single-story large warehouse facility, consisting of double wythe masonry construction. The roof structure is a metal roof deck over steel joists. The facility has an open floor plan with small offices/restroom areas located at the ends, along with a fire pump room. Interior walls of these spaces are CMU. There are interior full height and partial height metal cages subdividing areas of the warehouse. Large overhead doors open to an exterior dock area.

B4162 is a single-story bathroom facility, consisting of double wythe masonry construction. Interior spaces include restrooms and equipment/storage area. Interior walls are CMU.

1.2.2 FIELD PHOTOS

Figure 2.1- B286 Exterior Figure 2.2- B286 Courtyard

Figure 2.3- B286 Typical Interior

Figure 2.4- B286 Interior Training Room

Figure 2.5- B4038 Exterior

Figure 2.6- B4038 Dock

Figure 2.7- B4038 Interior

Figure 2.8- B4038 Interior

Figure 2.9- B4162 Exterior

Figure 2.10- B4162 Interior

1.3 MECHANICAL

1.3.1 FIELD OBSERVATIONS

The mechanical team investigated B286, B4038, and B4162 at various times throughout the week. The observations are broken up by building below.

B286 is a single-story facility with packaged direct expansion (DX) rooftop units (RTUs) serving most of the facility. Some spaces, including telecom and computer rooms, have ductless split systems with condensing units mounted on the roof. There is a basement mechanical room which houses the building water heater, along with the steam to hot water heat exchanger. The main domestic cold water and steam entry points into the building are also located in the basement. The mechanical team focused on gathering data for any equipment utilizing refrigerant, as this will need to be safely evacuated and disposed of prior to demolition of the building. While doing a walk-thru of the interior spaces, the mechanical team verified existing floor plans (especially in the ADVTE Secure area). Since the ADVTE spaces will be relocated in the new P-204 facility, the mechanical team focused on documenting equipment in each space, to gain a better understanding of the miscellaneous loads that will contribute to the HVAC system size.

B4038 is a large warehouse facility with small office areas on either end. The warehouse areas are heated by steam unit heaters. The steam ties into the main steam line, just outside the warehouse. The office areas are served by split system heat pumps. There are small bathroom areas featuring standard plumbing fixtures, served by small water heaters. There are also a few ductless split system heat pump units that serve various telecom spaces.

B4162 is a small bathroom/storage facility. The facility has a 300-gallon fuel oil storage tank located on grade. The mechanical room houses a water heater and a fuel oil fired heating unit. The bathrooms have standard plumbing fixtures, and there is an air compressor located in one of the storage rooms.

1.3.2 FIELD PHOTOS

Figure 3.1 - B286 RTU

Figure 3.2 - B286 Basement

Mechanical Room

1.4 ELECTRICAL

1.4.1 FIELD OBSERVATIONS

During the site visit, we analyzed and documented the electrical distribution systems in and around B286, B4038, and B4162. Since these buildings shall be demolished, special focus was given to building service transformers, main distribution switchboards, and lighting fixture types.

B286 is a standard office/classroom building with a single 277/480V service. The pad-mounted transformer is located just outside the northeast corner of the building and serves a 600A MDP located on the exterior of the building. Branch circuit panels are located in two areas of the building with their corresponding dry-type, step down transformers located in nearby closets. The majority of the interior lighting fixtures are recessed fluorescents. There are minimal exterior building mounted lights, and only one parking lot light pole that may require demolition.

B4038 is a large warehouse facility consisting of two nearly identical sides; each with a small administration area and restrooms. The 225kVA pad-mounted transformer is located just outside the south end of the building and serves a combination main Telecom / Electrical Room (MER) accessed from the exterior of the south face of the building. The branch circuit panels in the MER serve everything on the south half of the building. A 225A, 277/480V service from the MDP traverses to separation wall in the middle of the facility. This panel and corresponding step down & branch circuit panels serve everything on the north half of the facility. The administration areas contain recessed fluorescent fixtures, and the warehouse areas contain high-bay fluorescent fixtures. Due to the quantity of loading docks on both the east and west sides of the building, there are numerous wall-packs installed.

B4162 is a relatively small building whose main purpose is to provide electrical services to the outdoor equipment pads/equipment. B4162 and the corresponding paved equipment area is located adjacent to the west side of B4038. The 500kVA pad-mounted transformer is located just behind the building. An exterior mounted manual transfer switch allows for a temporary generator connection. The majority of the building is the MER. It contains a 1200A MDP, miscellaneous equipment, and a 400hZ frequency

Figure 3.4 - B4038 Warehouse

Figure 3.3 – B4162 Fuel Oil Storage Tank converter. The majority of the building’s electrical capacity serves three (3) power pedestals located out in the paved areas. The pedestals contain 208V disconnects, 400hZ disconnects, and telecom enclosures.

The lighting in the building are all industrial style strip fluorescents, and the site does contain a few light poles for general area lighting.

1.4.2 FIELD PHOTOS

Figure 4.1 – B286 Typical Transformer Closet

Figure 4.2 – B286 Exterior MDP Building Service

Figure 4.3 – B4038 Pad-mount XFMR View From MER

Figure 4.4 – B4162 (Rear) and Typical Power Pedestal

1.5 COMMUNICATIONS

1.5.1 FIELD OBSERVATIONS

The investigation included surveying the networks of three building planned for demolition; B286, B4038 and B4162. All building contained network cabling, racks, outlets, conduit and junction boxes throughout to support the facilities mission. The incoming outside plant cabling was determined by meeting with base telephone. Building 286 contains a 24-strand fiber, circuit FOC 239 serving B286 originating approximately 600’ away in manhole A27 located at the corner of 5th Ave. and C St. The 200-pair copper telephone cable, circuit CA-31, originates in manhole A1804 approximately 100’ from the building on the other side of 4th Ave adjacent to bldg. 4867. For B4038 two 100 pair cables, circuit CA 28, originate from manhole C01. B4038 also contain fiber circuits FOC238 and 294-1 which both originate from manhole C01. Building B4162 contains telephone circuit CA-28, fiber optic circuit 264-1 and 294-4 which all originate from A2701. Handholes A270101 and A270102 were both found to assist in the routing of these circuits to building B4162. Laydown area 4161 is fed from B4162.

The investigation at B286 helped identify classroom training requirements. Building 286 contained three classrooms. Two with computers requiring data access and one with no computers. One of the computer classrooms was the ADVTE which required SIPR access and secured data cabinets. Further investigation into B286 uncovered a secured conference room and a small secured office space for JMPS.

There was also an open office area for three workstations with secure data access adjacent to the ADVTE classroom.

1.5.2 FIELD PHOTOS

Figure 5.1- B286 Telecom Room. Typical equipment for all buildings.

Figure 5.2 – OSP cables entering B4162. Typical OSP cabling tags for all buildings.

Figure 5.3 - Computer Classroom

1.6 STRUCTURAL

1.6.1 FIELD OBSERVATIONS

The structural field observations included surveying three buildings planned for demolition: B286, B4038 and B4162. The structural system for building 286 was observed to be a single-story building with concrete masonry walls (see Figure 1) supported by concrete piles and slab on grade which was confirmed by exisiting drawings. Buildings B4038 and B4162 were buildings that were added during the project charrette and were surveyed without exisiting drawings at the time. These buildings were observed to be single story buildings with concrete masonry units, steel roof joist framing system and concrete slabs. The foundation system for these buildings were not able to be determined upon observation but will be confirmed upon receival of existing drawings.

1.6.2 FIELD PHOTOS

Figure 6.1 – Building 286 CMU Wall Type System

Figure 6.2 – Building B4038 CMU Wall Type System, Steel Joist Roof System, Thickened Ground Slab for Warehouse Loads

14.3 Third Party Certification (TPC)