Project scope consisted of the removal and disposal of a UST in the basement of the parking garage. It was excavated, assessed for leaks, extracted and disposed of properly, and then the garage was repaired back to a usable facility.
The project included an environmental consultant to oversee the excavation, dewatering, tank and concrete removal and legal disposal. Once exposed during excavation, the tank was pressure washed, emptied and removed legally offsite. Ancillary work included the removal and legal disposal of hydraulic lines (after draining), piston/hydraulic concrete and line removals, soil sampling, new C.I.P. concrete, concrete wall patching, traffic coatings and pavement markings.
The project scope included the disassembly, remove and legally hauling off-site the existing Vehicle Ops Parking Shed and reconstruct a pre-fabricated building with reinforced concrete foundation, floor with steel-framed structure, coated steel wall panels, roof panel system, and building impact protection located in new location. The demolition included foundation removal located at the existing location, new interior electrical, engine block heater plug-ins and lighting as well as exterior supporting facilities. It also included electrical service, communications, access pavements and site improvements at the new location. Asphalt paving. Remediation of unforeseen soil conditions were encountered during the excavation for the new foundations.
The purpose of this contract was to replace (4 ea.) PVC tape tubes utilized for the two existing Aircraft Arresting Systems (AAS) on the main Airfield Runway at Volk Field. The project included the removal of 4 ea. existing PVC tubes, excavation, backfill with crushed and stabilized base course and soil, demolition and replacement of concrete saddles and pier caps used to support the new tube replacement. The existing ties and anchor bolts needed for the support of the new (4 ea.) 12-3/4-inch steel tubes, were adjusted with the new concrete support saddles and piers. In addition, mechanical, electrical, & controls needed for the operation of the tube tape was performed. The support pier caps and saddles for the existing tubes needed to be altered due to the change in diameter from the existing tape tube to proposed tape tube. The project also included asphalt and concrete shoulder pavement, grading, pavement markings, airport runway lighting and intercommunication with Tower Aircraft Control Center allowing work to proceed safely at an active airport runway.
The project is a design-build project for the replacement of mechanical equipment, associated controls, and piping at Building 89 Altus Air Force Base, Oklahoma. The work involves replacing existing BACnet DDC controls, VAV boxes, hydronic system piping and Air Handling Units (AHUs) 7, 8, 10 and 11 with new units and removing and reinstalling AHU 9 in Building 89. AHU-7 and AHU-8 are in the first-floor mechanical room, whereas AHUs 9, 10 and 11 are in the mechanical room at the 2nd floor mezzanine level. Louvers on the south side of the building will be removed temporarily during construction to provide access to the 2nd floor mezzanine. In addition to the work in Building 89, the central plant heating boiler in Building 88 will be replaced. Building 89 is a simulation training facility which operates 20 hours per day, 7 days a week, and we are please to have completed the original scope of work 6 months ahead of required completion.
The basis of this project was to sealcoat and repaint aircraft parking apron shoulders.
Full depth concrete repair on spot# 4 of aircraft parking apron. The area to repair is located west of spot# 4 on the aircraft parking ramp and is approximately 20SY of 14” thick concrete. Excavate and dispose of approx. 14” of concrete at an offsite location. Installation of base material disturbed/ removed during excavation and compact. Compaction of subgrade stone installed in 3” lifts or less to obtain a compaction rate of 95% through nuclear density testing. Sealing of all pavement joints disturbed or created during demolition or construction operations. Removal of paint and repainting all concrete surfaces on aircraft parking apron.
The contract called for a new make-up air unit (MAU) to be installed in place of the existing MAU in Building 308. The new MAU will be a 100% outdoor air unit with a hot water coil. The unit will be 5,000 CFM. The MAU will have a freezestat for freeze protection along with a modulating hot water control valve to maintain discharge air temperature, complete with necessary sensors, actuators and starters. A new exhaust fan was installed on the other side of the building in place of the existing exhaust fan. Ductwork, piping, valves, and accessories will be of high grade and quality and consistent with requirements of military installations of this nature and per International Mechanical Code (IMC), UFC 3-400-10N, and SMACNA standards. All suspended equipment will be isolated from the structure with vibration isolators. Piping, valves, and equipment shall be labeled and tagged for identification. HVAC: A 100% outdoor air make up air unit (MAU) was installed in place of the existing MAU. The new unit was mounted to the ceiling using threaded rod, unistrut and vibration isolators. The unit sits below the cross braces but is still above the floor of the mezzanine. Based on site observation, we felt that hanging the unit was the best option due to weight restrictions on the floor of the mezzanine.
Scope consisted of the replacement of AHU-1, A/C-1, HW Coils and Circulating Pump, including the removal and replacement of AHU-1 and associated CU-1 which serves the office area. The intention was to disconnect sufficient ductwork to facilitate the removal of the old unit, and install the new unit. The hot water piping was isolated by means of existing valves (assumed to be in working order) and disconnected at unions nearby. CU-1 is located on the roof area near where the MUA is currently located, above the boiler room. Sheet metal fittings / transitions were fabricated and installed to accommodate the layout of the new unit. Insulation patching was required where existing was removed, as well as insulating any new ductwork.
Also, part of the scope was to remove MUA-1, Ductwork and Exhaust Fans, including the removal of the existing MUA, associated ductwork, (2) exhaust fans, and filter rack.
Moreover, Replace AHU-2, HW Coils and Circulating Pump: Option 2 is similar in nature to the base bid. The unit for Bid Option 2 is larger, but is without cooling. The intention is to disconnect sufficient ductwork to facilitate the removal of the old unit, and installation of the new unit. The hot water piping will be isolated by means of existing valves (assumed to be in working order) and disconnected at nearby flanges. A temporary platform will be constructed to assist in removal and replacement of the AHU. Insulation patching will be required where existing was removed on the hot water piping, as well as the outdoor air to the AHU.
The Work of Project consists of the following: Renovation of existing Building P-26 to accommodate the Centralized Repair Facility (CRF) engine storage function within the CRF mission. The CRF mission is to provide maintenance and repair of aircraft engines. Interior walls will be reconfigured and electrical, plumbing, fire protection, communications and ventilation systems will be upgraded to accommodate requirements for CRF engine storage. The latrines will be remodeled, the roof will be replaced and tuck-pointing exterior masonry will be required. The floor finish in the main storage bay will also be replaced. Two NDI functions are located in this facility: the prefabricated X-Ray Booth and the associated Dark Room. Additionally, a small area of long-term parts storage will become designated, fenced-in space within P-26.
The purpose of this project was to repair by replace the latching pin guide assemblies (3) including the (3) locking pins as indicated in the task order Statement of Work and manufacturer specifications. Three latching pins were e replaced, as well as power supply mast cord, replaced to match the existing. The existing cable was removed (recycled by WIANG), replaced and the power supply cord was terminated in compliance with manufacturer specifications. Prior to the replacement of guide assemblies, etc., and cables, an inspection took place. This inspection of the existing Holophane high mast lowering device, power cable system & pulley, and locking mechanism ensured the replacement needs of the system functioned correctly and efficiently. After repairs have been made and the leveling and lubrication of all moving parts was complete, we test-exercised the system (5) times with WIANG base electrician present. This exercise test lowered and raised the mast completely ensuring correct operation.
Centralized Lighting Inverters scope included providing and installing two single phase 120/208 central lighting inverter system. The central inverter units were installed one each in the in the electrical equipment rooms of building 500 and building 706 for purposes of powering all LED perimeter lighting and security cameras fed from these locations. The installation included individual circuit protection for the existing lighting and security camera circuits either as part of the lighting inverters or new external circuit breaker panels. The lighting circuits are controlled via existing photo cell control contactors. The security camera circuits are and remained continuously powered and separate from the lighting contractor circuits which are photo cell controlled. Consolidation of the three light poles and single security camera located in the parking lot immediately north of building 710 onto the perimeter security camera power circuit fed from the new BB inverter in build building 706. Provided one, 3 phase 120/208V central lighting inverter system allowing a minimum of 30 minutes run time to power the HID ramp lighting circuit fed from building 208. Also provided one, 3 phase 120/208V central lighting inverter system minimum size 4 kW allowing a minimum of 30 minutes run time to power the HID ramp lighting circuit fed from building 401. The inverter protects the existing circuit with an integrated circuit breaker.
Provided one, 120V central lighting inverter system minimum size 90W and provide a minimum run time of 45 minutes to power the security camera circuit fed from building 208. The inverter protects the existing circuit with an integrated circuit breaker. Also provided one, 120V central lighting inverter system minimum size 90W and allowing a minimum run time of 45 minutes to power the security camera circuit fed from building 304. The inverter protects the existing circuit with an integrated circuit breaker.