LBNL Storm Drain Replacement
LBNL Storm Drain Replacement
LAWRENCE BERKELEY NATIONAL LABORATORY
Project Value: $3.2 Million
Background
LBNL is a multi-program scientific research campus operated by the University of California for the United States Department of Energy (DOE). It is located on a 202-acre parcel of land in Alameda County, California. LBNL’s project required the replacement and repair 3,700 feet of its Storm drain system as part of the infrastructure improvement program.
LBNL was seeking a general contractor or civil contractor to provide site civil underground piping services for the legacy storm drain replacement and repair project. The project was a collaborative effort between the contractor, engineer of record (ETIC) and LBNL. The project consisted of replacing old storm drain piping or repairing existing piping by utilizing cure-in-place-lining (CIP) across the LBNL site.
The schedule was fast-tracked to be able to minimize the impact on the overall campus traffic and laboratories and researchers.
Scope
- Traffic Controls
- Excavation
- Initial inspection and cleaning
- Furnish and install new storm drainpipe.
- Furnish and install cure-in-place-lining (CIP).
- Post repair inspection
- Service test new install line per Engineering DWG, Owner Spec and NFPA standard.
- Backfill and restore site.
- Stockpile material, transfer and dispose excess material.
Project Highlights
- Excavation utilizing hand-tools and vacuum truck.
- Stockpile and dispose excess material.
- Replace existing storm drain lines with PVC pipe.
- Repair existing piping system by utilizing cure-in-place-lining (CIP) across the LBNL site
- Replaced and repaired 3700 feet of drain system in various sizes (6” to 24”)
Challenges & Solutions
- COVID-19 Pandemic
- Working around live utilities such as 12kV duct bank, Gas line, Sanitary Sewer, and waterline.
- Lead time to procure Piping material due to the pandemic.
- Unforeseen obstructions, existing \ live utilities.
- Building and Laboratories schedule, access and vibration restrictions.
- To solve these challenges, it was important to; pre-plan, communicate with the client, supplier and subcontractor, monitor the schedule and budget, and provide solutions to the client for any issues encountered.
Project Success
The project was completed successfully with 25,014 man-hours worked without any injuries. The project was also completed ahead of schedule and within the allocated budget.
LBNL CMLC Water Line Replacement
LBNL CMLC Water Line Replacement
LAWRENCE BERKELEY NATIONAL LABORATORY
Project Value: $5 Million
Background
LBNL is a multi-program scientific research campus operated by the University of California for the United States Department of Energy (DOE). It is located on a 202-acre parcel of land in Alameda County, California. LBNL introduced multi-infrastructure improvement projects in 2020.
LBNL was seeking for a general contractor or civil contractor to provide site civil underground piping services for the Cement Mortar Lined and Coated (CMLC) Water Line Replacement Project. The project was a collaborative effort between the contractor, engineer of record (GHD), and LBNL. The project consisted of replacing 3,200 feet of old CMLC piping with either ductile iron below grade or steel above grade across the LBNL site.
The schedule was fast-tracked to be able to minimize the impact on the overall campus traffic and laboratories and researchers.
Scope
- Traffic Controls
- Excavation
- Furnish and install new domestic/fire water lines.
- Hydrotest, flush and disinfect new install line per Engineering DWG, Owner Spec and NFPA standard.
- Cut over and replace existing water distribution system with new.
- Backfill and restore site.
- Stockpile material, transfer and dispose excess material.
Project Highlights
- Excavation utilizing hand-tools and a vacuum truck.
- Stockpile and dispose excess material.
- Replace existing CMLC domestic/fire water lines with Ductile-Iron-Pipe without interrupting existing feeds to buildings/facilities/arteries.
- Replaced more than 3,200 feet of water line in various sizes
Challenges
- COVID-19 Pandemic
- Working around live utilities such as 12kV duct bank, Gas line, Sanitary Sewer, and waterline.
- Lead time to procure Piping material due to the pandemic.
- Unforeseen obstruction; existing and live utilities.
- Building and Laboratories schedule, access, and vibration restrictions.
Solutions
To solve these challenges, it was important to; pre-plan, communicate with the client, supplier and subcontractor, monitor the schedule and budget, and provide solutions to the client for any issues encountered.
Project Success
The project was successfully completed with no reported injuries during the 15,849 man-hours worked. The project was finished within the assigned budget ahead of schedule.
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.
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.