Recent Feature Projects
1. OCTA Route 55 Widening from I5 to I405
506 million from July 2022 to Aug 2024
Project Description – It involved construction of 4 bridge widenings, 10,300 ft of retaining walls, and 20 overhead sign structures. The structure works consisted of driven H piles and CIDH piles as foundations, precast prestressed concrete girders, and cast-in-place post-tensioned concrete box girders.
Job Title : Assistant Structure Representative
Responsibilities: 1. Reviewed and approved contractor’s submittals including concrete mix, demolition plans, CIDH placement and mitigation plans, permanent metal decking shop drawings, precast girder shop drawings, and embankment settlement monitoring plans. 2. Responded to RFI. 3. Inspected pile driving, CIDH pile installation and mitigation, shoring installation, demolition of overhang over railroad, placement of precast concrete girders, and computing abutment grades. 4. Wrote structure letters. 5. Maintained dairies, photo logs and other structure documents online.
2. Caltrans I80 Gilman Interchange Project
75 million – April 2022 to July 2022
Project Description – It involves the construction of a steel arch suspension bridge over I80 for pedestrians and bicyclists, and the reconfigurations of street traffics from convergence of frontage roads, freeway ramps, and Gilman Street. The suspension pedestrian overcrossing consists of east and west reinforced concrete box girder ramps, and the middle portion consisting of two post-tensioned edge beams and intermediate reinforced concrete floor beams at hangar points connected by hangar cables to the two steel arch ribs anchored to two elliptical bent caps on both sides.
Job Title : Structure Representative
Responsibilities: 1. Computed soffit and deck grades for the east and west ramps. 2. Computed hangar elevations for the cable hangar inserts in the first concrete pour. 3. Responded to RFIs. 4. Authorized structures submittals. 5. Managed 2 field inspectors. 6. Coordinated and inspected mitigation for 2 CIDH piles with issues of blocked inspection tubes from dropped rebar cages and casings.