Sacramento P&DC Asphalt Replacement
Sacramento P&DC Asphalt Replacement
UNITED STATES POSTAL SERVICE
Project Value: $500,000
Scope
Remove and replace existing 54,000 square feet of asphalt concrete, concrete curb, gutter and sidewalk.
- Critical scheduling
- Excavation
- Concrete curb, gutter & Sidewalk
- Asphalt Paving
- Striping/Pavement Markings
Challenge
Project needed to be performed in an operational facility.
Solution
Management and leadership came up with a solution with the postmaster to allow for continuous operation of the postal facility. Coordination included phasing and swing shift work.
Project Success
We completed the project in two days with no interruption to facility operations.
Fresno P&DC Asphalt Replacement
Fresno P&DC Asphalt Replacement
UNITED STATES POSTAL SERVICE
Project Value: $500,000
Scope
Fresno P&DC operations and employee lot asphalt replacement included the removal and replacement of 170,000 square feet of existing asphalt concrete.
- Critical scheduling
- Excavation
- Asphalt Paving
- Striping/Pavement Markings
Challenge
Project needed to be performed in an operational facility.
Solution
Management and leadership came up with solution with the postmaster to allow for continuous operation of the postal facility. Coordination included phasing and swing shift work.
Project Success
We completed the project with no interruption to facility operations.
Sulfur Recovery Loading Rack
Sulfur Recovery Loading Rack
CHEVRON REFINERY
Project Value: $5 Million
Scope
Civil construction of eight new concrete foundations and one loading rack foundation, to facilitate erection of structural steel and installation of mechanical piping to support the new loading rack and its necessary pumps, structures and amenities.
- Project Specialties
- Pile Driving
- Excavation
- Grading
- Underground
- Electrical
- Masonry
- Paving
- Structural Steel
- Mechanical Piping
Challenge
Maintaining unimpeded access to the current loading rack while completing civil/structural, mechanical and piping installation for the replacement sulfur truck loading rack to increase the truck loading capacity and improve safety.
Solution
By coordinating with operations and traffic plans during the 12+ month project to off-haul sulfur at the existing loading rack, we assisted in constructing the new loading rack without impeding necessary truck traffic.
Project Success
The new rack and its necessary foundations were safely completed.
Pipe Support Replacement Project
Pipe Support Replacement Project
CHEVRON REFINERY
Project Value: $2 Million
Scope
Civil construction to widen and increase the mass of 57 existing concrete foundations and upgrade the baseplates and structural steel on 40 bents.
- Project Specialties
- Excavation
- Underground
- Masonry
- Structural Steel
Challenge
Completing seismic repairs and upgrades to the existing Standard Road Pipe Rack that was built in the early 1970s and experienced severe damage due to corrosion at multiple beams, columns, vertical bracing and anchor bolts – all in accordance with the 2013 California Accidental Release Prevention Program Seismic Assessments and the 2016 California Building Code. We also performed voluntary modifications to the lateral-force resisting system.
Solution
Faced with difficult excavations that required abnormal shoring installation and complex layout, we noticed an unexpected large boulder that presented a hazard to perform the necessary excavation began. We helped redesign the structural upgrades and eliminate the hazard of the boulder, keeping the field crews safe during the seismic retrofit.
Project Success
Provided constructibility and value engineering for the retrofits and to the soils engineer.
Old Town Utility Corridor (12kV)
Old Town Utility Corridor (12kV)
LAWRENCE BERKELEY NATIONAL LABORATORY
Project Value: $5 Million
Scope
Install new 12 kV ductbank and utility corridor for future development. Relocate utilities including main gas line and main compressed air line. Reroute and install new storm drain line.
- Demolition
- New Retaining Wall Construction
- Underground Utilities
- Site Restoration
- Grading
- Paving
- Masonry
- Mechanical Piping
Challenge
Existing underground utilities locations and the existing main gas line were not shown in design drawings. Compressed air line cut-over and relocation had not been studied and designed based on the limitations of research buildings and other laboratories during the design process. Most of the underground utilities were an unforeseen obstruction during the construction. The project next to the Advance Light Source building could not disturb research by producing any vibration in the vicinity.
Solution
We redesigned the main gas line and compressed air line relocation to comply with the research and laboratory operations. Because of the Advance Light Source vibration restriction, we completed excavation with nomadic hammer and demolition of the reinforced concrete structure with a concrete processor as a precaution when moving the heavy equipment. We also coordinated with the client to use a jackhammer for demolition/excavation, jumper jack and vibratory roller for backfilling and paving during the ALS maintenance shutdown window.
Project Success
Provided safe and efficient service to a facility that has very unique needs so its research could continue uninterrupted.
Bay View Site Access Improvement
Bay View Site Access Improvement
LAWRENCE BERKELEY NATIONAL LABORATORY
Project Value: $5 Million
Scope
Demolish existing reinforced concrete structure to provide the real estate for new building construction, relocate existing compressed air line, install new fire and domestic water lines, install soldier pile with several rows of tie-backs, install new reinforced concrete retaining walls and new stair structures.
- Demolition
- Soil Disposal
- Site Restoration
- Relocation of Underground Utilities
- Grading
- Paving
- New Retaining Wall Construction
- Underground
Challenge
The underground compressed air line was in a challenging location and a Bay Area Quality Management District Permit and Soil Disposal Profile was not covered in the design drawings.
Solution
We prioritized the project activities and stockpiled the soil for testing to accommodate and achieve the project schedule.
Project Success
We prevented a more than six month delay to the project schedule and new building construction started as planned.