Intersection Improvements

Preliminary Environmental Clearance and Preliminary Engineering Services for Intersection Improvements (2014) The Lakewood Boulevard/Alondra Boulevard, Bellflower Boulevard/Spring Street, and Lakewood Boulevard/Spring Street intersections were identified as Congestion Hot Spots by the I-605/SR-91/I-405 Technical Advisory Committee (TAC). GAI provided geotechnical engineering services for intersections 1, 7, and 48 in the cities of Long Beach, Bellflower, and…

Lakewood and Alondra Intersections

Preliminary Geotechnical Engineering, Initial Site Assessment (ISA), and Phase II Environmental Study for Lakewood and Alondra Intersections (Metro Hotspot Project) (2015) The project was defined as a Metro Hotspot project that included “Environmental Clearance and Preliminary Engineering Services” for Intersection Improvements in the Cities of Long Beach, Bellflower, and Paramount”. GAI provided geotechnical engineering and…

I-605/SR-60 Interchange Improvement Project

Geotechnical Services for PA/ED for I-605/SR-60 Interchange Improvement Project (2016-2017) The proposed improvements for the project were along I-605, from Telegraph Road to the I-10 interchange, and along SR-60, from Santa Anita Avenue to east of Turnbull Canyon Road. LA Metro and the Gateway Cities Council of Government (GCCOG) prepared a Project Study Report –…

I-15 and SR-74 Interchange Improvement

Geotechnical Engineering Services for PA/ED for I-15 and SR-74 Interchange Improvement (2017) The interchange was approximately 1.5 miles Southerly of Nichols Road Interchange and 1.3 miles Northerly of Main Street Interchange. SR-74 was designated as an 8-lane urban arterial, serving the City of Lake Elsinore, Canyon Lake, and unincorporated areas of the County of Riverside.…

I-605/South Street Improvement Project

Geotechnical Services for PA/ED and PS&E for I-605/South Street Improvement Project (2017-2019) The project was funded as part of the I-605 Hot Spots in Measure R to reduce the existing and forecasted congestion. The project provided additional merging distance/space for vehicles entering from both WB and EB SR-91 onto SB I-605 while minimizing Right-of-Way (ROW),…

SR-57/SR-60 Confluence Project

Geotechnical Investigation for PS&E for SR-57/SR-60 Confluence Project (2018-2020) The project spanned 2.5 miles within the vicinity of the SR-57 and SR-60 interchange (also known as the SR-57/SR-60 Confluence). The developments included constructing a new bypass ramp to Grand Avenue from eastbound (EB) SR-60, reconfiguring the south half of the Grand Avenue interchange from a…

Redondo Beach South Bay Regional Intermodal Transit Center

Geotechnical and Materials Testing and Inspection for Redondo Beach South Bay Regional Intermodal Transit Center (2019-2022) The project involved the construction of a new transit center on Kingsdale Avenue which included the construction of a new transit building, bus bays, retaining walls, parking lot, and associated appurtenances. GAI provided during construction geotechnical and materials inspection…

SR-91 Improvement Project

Geotechnical Services for PA/ED and PS&E of SR-91 from Central Avenue to Acacia Court Improvement Project (2020-2023) The LA Metro, in cooperation with the Caltrans District 7 and the Gateway Cities Council of Governments (GCCOG), advanced the development and implementation of State Route 91 between Acacia Court and Central Avenue in the City of Compton.…