Cabrinha, Hearn & Associates


Rail Transportation Projects - Los Angeles County Metro

Subway and Light Rail transportation became a reality for Los Angeles in the mid 1980s.  These two projects marked the beginning of our firm's participation with Los Angeles County Metro rail system projects.

Red Line Expansion from Downtown to Universal City

Red Line Expansion from Downtown to Universal City

  • Subway Tunneling Project
  • Design and Right-of-Way Mapping
  • As-built Surveys in underground sewers and storm drains
  • GPS Surveys for control and geo-technical soil boring locations to facilitate tunneling work in the Hollywood Hills. 
Blue Line Expansion from Downtown to Pasadena

Blue Line Expansion from Downtown to Pasadena

  • 14-Mile Light Rail Project
  • Photogrammetric Control Surveys
  • Horizontal and Vertical Controls (GPS & Electronic Leveling)
  • Surveys: design data acquisition, mapping & cadastral, topographic, x-sections.

Back to Top




GOLD LINE EASTSIDE EXTENSION & TUNNEL

Client: Carter-Burgess / Los Angeles County Metro

Our firm provided field and office support to the construction manager of this 1.2 mile, light rail tunneling project, which is part of the Los Angeles County Metro Light Rail Transit system. Our firm performed the following specific services:

  • Topographic Surveys
  • Horizontal & Vertical Control Verifications
  • Tunnel Construction Alignment & Surface Deformation Monitoring
  • Tunnel Alignment & Concentricity Monitoring
  • Calculation and Mapping Functions
  • Daily Monitoring and Subsidence Reports - reduced, adjusted, compiled & prepared
GOLD LINE EASTSIDE EXTENSION & TUNNEL

Back to Top



CRENSHAW/LAX EXTENSION

Client: Geocomp/Walsh Shea Corridor Constructors JV / Los Angeles County Metro

Cabrinha, Hearn & Associates provides survey support for geotechnical monitoring on this tunneling project. The Crenshaw/LAX Transit Project is part of the expansion projects within the Metro Rail system in Los Angeles County, which will expand Los Angeles County's existing light rail infrasture. Our firm supports the construction of this vital transportation project by providing the following services:

  • Establish Survey Controls for Structure Monitoring in Excavation Tunneling Sites
  • Set Building, Surface and Excavation Monitoring Points Prior to Construction.
  • Conduct Daily Deformation Monitoring During Construction.

Geotechnical Monitoring

Geotechnical Monitoring

Station Excavation

Station Excavation

Station Box Monitoring

Station Box Monitoring

Back to Top




PURPLE LINE EXTENSION, SECTION 1

Client: Westside Extension Support Team JV/Los Angeles County Metro

Our firm provides surveying services for Construction Managment Support Services in this 3-mile tunneling project. The Purple Line Westside Extension, Section 1 is part of the Los Angeles County Metro Subway system expansion projects, which will connect commuters between downtown Los Angeles and Westwood. Our firm provides:

  • Horizontal and Vertical Control Verification and Densification Surveys
  • Exploratory Shaft Site Monitoring
  • As-built and Topographic Surveys and Mapping using Advanced Utility Relocation (AUR) 
  • Utility Plan Verifications
  • Monument Preservation and Restoration

Subway Station Construction

Subway Station Construction

AUR Surveys

AUR Surveys

Night Shift Surveying

Night Shift Surveying

Back to Top




CALIFORNIA STATE UNIVERSITIES
Client: Wheeler & Gray Consulting Engineers / California State University

Cabrinha, Hearn & Associates has provided various land surveying services on numerous campuses over the past 20 years. We have worked as a subcontractor to Wheeler & Gray, and have also worked directly with California State Universities. Projects have included accessibility improvements; campus beautification/modernization; construction of multi-story parking structures, educational facilities, and housing; parking lots; and athletic fields. Our firm has provided a variety of services, such as:

  • Detailed Design Topographic Surveys
  • ALTA
  • Construction Layout Staking
  • Aerial Mapping
  • Preparation of Easements and Legal Descriptions

Cal State San Bernardino

Cal State San Bernardino

Cal State Northridge

CalStateNorth

Cal State Los Angeles

CalStateLA

CSUSB Palm Desert Campus

CSUSB Palm Desert Campus

CSU Maritime Academy

CSU Maritime Academy

CSU Channel Islands

CSU Channel Islands

Back to Top



LOS ANGELES COMMUNITY COLLEGES

Client: Harper Construction Company, Inc. / Los Angeles Community College District

Cabrinha, Hearn & Associates provides land surveying services at several community colleges within the Los Angeles Community College District. Our firm has worked on a variety of construction projects consisting of multi-story education buildings and parking structures. Some of the services our firm provides on these endeavors are:

  • Construction Layout Surveys
  • Anchor Bolt Verifications
  • Rough Grading
  • Fine Grading
  • Site Utility Staking
  • As-built Surveys

Los Angeles Community College

Los Angeles Community College

Los Angeles Southwest College

Los Angeles Southwest College

East Los Angeles College

East Los Angeles College

Back to Top



 

SANTA MONICA ON-CALL SURVEYING

Client: City of Santa Monica

As part of a multi-year, on-call contract, our firm provides the City of Santa Monica with a variety of land surveying services using ground, aerial and GPS surveying equipment to meet our client's needs on a various exciting projects.

Design Surveys

Design Surveys

GPS Control Survey

GPS Control Survey

Aerial Mapping 

Aerial Mapping

Back to Top




I-605 HOT SPOTS

Client: Michael Baker International/Los Angeles County Metro

Our firm provided aerial mapping and control surveys for the 605 Interstate Highway "Hot Spots."  This project is part of the Los Angeles County Metro's I-605 Corridor "Hot Spots" Program designed to reduce congestion along the heavily traveled 605 Interstate Highway in Los Angeles County.  Specific services provided to our client included:

  • Prepared Control Surveys Reduction and Post-Processing were completed utilizing Starnet and Topcon Magnet software.
  • Mapped 16 miles of the Interstate at 50 scale with 2’ CI.
  • Established primary and secondary controls for aerial mapping and future design surveys
  • Utilized airborne GPS & static GPS digital bar code leveling TS surveys for control establishment.
  • Prepared Caltrans DOP Item A, B and C for approval.
  • Performed all work per Caltrans guidelines, with LA County Metro and Caltrans oversight.
I-605 HOT SPOTS

Back to Top




CALTRANS ON-CALL SURVEYS
Client: Caltrans

Our firm was involved in both Design and Construction Phases on this 2,000 linear foot, three-lane bridge structure spanning the Interstate 5, Interstate 170 and the Tujunga Wash. Our firm provided complete construction staking for the Northbound flyover. Specific tasks performed by our firm were:

  • Survey Calculations
  • Staking
  • Pre-Pour Form As-builts
  • Mapping
  • Property Line Staking
  • Property Line Location
  • Construction Staking
  • Staff Augmentation
CALTRANS ON-CALL SURVEYS

Back to Top




CITY OF PASADENA ON-CALL SURVEYS

Client: City of Pasadena

During this multi-year, ongoing contract, our firm provided an array of as-needed surveys for the City of Pasadena. Our firm completed all tasks on-time and on budget. Surveying cateogories included:

  • Monument Preservation
  • Design Surveys
  • X-Section Surveys
  • Topographic Design Street Cross-Sections
  • Utility Location
  • Right-of-Way Mapping
  • Construction Staking
  • Aerial Mapping
  • Preparation of Legal Descriptions

Civic Center Design

Civic Center Design

Civic Center Design Survey

Civic Center Design Survey

Back to Top




PASADENA ROSE BOWL RENOVATION

Client: Clark Construction

Our firm was an integral part of the design and construction teams on the expansion and renovation project at the historic Pasadena Rose Bowl.  Work consisted of complete renovation to the interior and exterior of the stadium; updates to all tunnel structures; demolition and construction of the Rose Bowl Press Box consisting of press facilities, private suites, security command center, and facilities to support these services. Our firm provided construction staking and regular monitoring to ensure structural integrity at this historic Pasadena icon.

Rose Bowl Structure Construction

Rose Bowl Structure Construction

Rose Bowl Modernization

Rose Bowl Modernization

Rose Bowl Renovation

Rose Bowl Renovation

Back to Top



 

PASADENA CONVENTION CENTER

Client: Clark Construction

The Pasadena Convention Center Renovation and Expansion Project consisted of renovations to the interior and exterior of the Conference Center, complete demolition of the Exhibit Hall and West Plaza, and construction of a new 60,000 square foot exhibition hall, a 25,000 square foot ballroom, and 28 new conference breakout rooms, and a 29,000 square foot stressed membrane structure.   Our firm provided construction staking and structure monitoring in the pre-construction and construction phases of this project.


PASADENA CONVENTION CENTER

Pasadena Convention Center Renovation Pasadena Convention Center Expansion Pasadena Convention Center Project

Back to Top



 

FAIRMONT AVENUE EXTENSION

Client: Jacobs Engineering

Fairmont Avenue Extension Project included construction of a bridge structure on Fairmont Avenue, which extended the road to the west over   San Fernando Road, the Los Angeles County Metro's railroad tracks, and the Verdugo Wash.  Cabrinha, Hearn & Associates provided field and office construction management support on the flyover and new roadway construction portion of this project.  Services our firm provided on this infrastructure project included:

  • Topographic, As-built, Horizontal, and Vertical Control Check Surveys
  • Calculations
  • Ground Mapping
  • As-built Surveys of Soffits and Dowels.

Horizontal Check Survey

Horizontal Check Survey

Form/Dowel Verifications

Form/Dowel Verifications

Roadway Construction

Roadway Construction

Back to Top



 

WONDER VALLEY SOLAR DALE DRY LAKE

Client: Parsons

Cabrinha, Hearn & Associates completed topographic mapping of a 3,200 acre site for construction of a proposed utility facility, in addition to the following services:

  • Located all existing on-site utilities
  • Recovered existing horizontal and vertical controls
  • Recovered section and township Lines
  • Established permanent on-site control monumentation
  • Mapped 3,200 acres

 

Wonder Valley

Back to Top



 

FORT IRWIN WASTE WATER TREATMENT FACILITY
FORT IRWIN GOLDSTONE APOLLO DEEP SPACE ANTENNA SITE

Client: CDM Smith / CH2M Hill

Our firm performed a variety of surveying services on these projects located within the United States Military Fort Irwin National Training Center.  We provided the following services:

  • Prepared Topographic Design Mapping
  • Established Horizontal and Vertical Control Monuments
  • Located On-Site Utilities
  • Tied utility locations to existing Fr. Irwin DIS Utility Mapping
  • Located geotechnical boring locations
  • Construction Staking

FORT IRWIN WASTE WATER TREATMENT FACILITY Fort Irwin Antenna Site United States Military Fort Irwin National Training Center

Back to Top




Residential Surveys

Our firm has been serving residential clients' in the Southern California area for over 42 years.  If you are considering purchasing a property, a survey is recommended to ensure the property boundaries coincide with the title report you may have received.  A survey is usually required by local and state ordinances for new construction, construction improvements to an existing structure, or subdivision of a parcel of land.  Our team of experts will conduct the particular survey needed and prepare accurate and precise reports quickly.  

Boundary Survey
Boundary/Property Line Location

Our land surveyor will take accurate measurements of your proprety, complete a survey report, and file all appropriate documentation with the County Registrar

Image Coming Soon!

Architectural Site Survey

Corner Replacement

Back to Top