Summit Environmental Contractors is completing work for the Caltrans District 7 Trancas Creek Bridge Project. This includes removing and disposing of 230,000 gallons of contaminated liquid, air monitoring, engineering support, and site management.


The existing 96-year-old, 85-foot wide, 90-foot-long concrete bridge, which was constructed in 1927 to span Trancas Creek on Pacific Coast Highway in Malibu, is being replaced with a new concrete bridge which will be 105 feet wide by 240 feet long. The new bridge will provide:

  • Two 12-foot traffic lanes
  • Bike lanes & separate pedestrian lanes
  • 10-foot shoulders in each direction to substantially improve efficiency and safety for the community
  • Northbound and southbound traffic will be separated by a six-foot striped median

The source of the contaminated soil was from the use of lead-based fuel. By removing this hazardous material, Summit is preventing toxic waste from migrating into the groundwater and beaches, eliminating carbon emissions, protecting construction workers from health hazards, and creating a healthier community for families.



Summit Environmental Contractors will be providing environmental consulting and contract services for the Pershing Drive Bikeway Project located in San Diego, California. The Pershing Drive Bikeway Project will feature a modernized road by improving bikeway and roadway lane safety by resurfacing and widening them and also the addition of a roundabout and median that will significantly reduce the chance of vehicle and pedestrian collisions.

The work includes hazardous soil handling and profiling, lead awareness training, excavation and transportation planning, water pollution control and air monitoring. By removing contaminated soil that build up from leaded gasoline and emissions, we prevent any toxins from infecting nearby bodies of water and also prevent the toxins from migrating into the groundwater supply.  Summit’s lead awareness training and air monitoring prepares and protects construction workers from health hazards and ensures a safer environment for the community during the project and future.


Summit Environmental Contractors provided environmental and contracting services as part of the Rail Trail Segment 7 project. The purpose of this project is to create a safer and more efficient pedestrian trail for the public. Summits’ part in achieving this, was the removal and disposal of over 8,000 Tons of contaminated and hazardous material produced from the railroad that runs parallel to the pedestrian trail. Fieldwork included geotechnical surveyance, sampling and testing, hazardous material, and lead training. An excavation and transportation plan (ETP) was also provided to outline proper handling and transportation of the jobsite and to increase worker safety.


Summit provided both environmental contracting and consulting services as part of the 47th Avenue pedestrian and bicycle improvements project in Sacramento. Services included the preparation of a transportation and disposal plan outlining the requirements for the handling of contaminated material and sampling and analysis plan. Field work included soil sampling and testing over several contaminated locations that run along the side of the CA-99. The levels of ADL were the primary concern and as a result, summit transported and disposed of hundreds of approximately 1,000 tons of hazardous material at a class I landfill


Summit Environmental Contractors provided environmental and contracting services as part of the SANDAG Bayshore Bikeway Improvements Project. The project included the construction of a new pedestrian and bike path and the reconstruction of a security wall for the San Diego Naval Base.

Services included plan preparation for Transportation and Disposal, Excavation and Safety, and Soil Management. Summit also provided waste characterization and air monitoring. The primary chemicals of concern (COC) were petroleum hydrocarbons, heavy metals, PCBs, and pesticides. Upon further testing, Summit removed and disposed of over 2,000 tons of hazardous material at a Class I landfill.


Summit Environmental Contractors provided transport and disposal of contaminated and hazardous soils. The construction job involved soil excavation and restoration from the future Horton Landing Park and surrounding vicinity. The primary chemicals of concern were heavy metals, petroleum hydrocarbons, pesticides and polychlorinated biphenyls (PCBs). To date, Summit has removed and disposed 12,500 tons of material at a Class I landfill and 7,500 tons of material at a Class II landfill. Summit’s contribution supported the city’s objective to install a bridge connecting the Emeryville Greenway located on the east side to the Bay Trail located on the west. The 230-foot span provides pedestrians and bicyclists safe passage over the Union Pacific Railroad tracks from Central Emeryville to the Bay Street Center. The project is scheduled to be completed in the Fall of 2021 and has an estimated price tag of $21.4 million.