Goetechnical Engineering Services

rebar observation

Lambert and Associates addresses difficult geotechnical engineering conditions that may influence the design, construction and performance of a project.

Our studies provide an assessment of the site geotechnical engineering conditions.

Our Characteristics

Lambert and Associates studies typically address difficult site characteristics.

  • Swelling soils and their influence
  • Collapsing and settling soils and their influence
  • Subsurface water
  • Soil bearing capacity for various foundation types
  • Slope stability for natural and manmade slopes
  • Lateral soil loads on basement and other walls retaining soil material
  • Paved surface areas such as for roads, storage, and parking

Our Work Scope

  • Site subsurface investigation using one of our drill rigs to obtain subsurface information and samples
  • Review of existing site history information
  • Laboratory study using the samples obtained to determine the engineering characteristics
  • Subsequent geotechnical engineering analysis of the data generated
  • A report which presents the information and data generated and the results of our analyses

Our Report

The information we obtain from our studies is used to provide the geotechnical engineering design parameters, comments, suggestions, and recommendations needed for the planning, design, and construction phases of a project.

  • Viable foundation alternatives
  • Design parameters for the foundation alternatives
  • Design bearing capacity values for the structure foundations
  • Settlement potential of the site soil materials
  • The swell potential of the site soil materials
  • Lateral earth pressures for walls retaining soil material
  • Concrete slab on grade floor suggestions and recommendations
  • Alternative flexible and rigid pavement sections for areas to be paved for roadways, storage, and parking areas
  • Other suggestions and recommendations for the design and construction of your project

Material Testing Services

Lambert and Associates is available to provide our materials testing services for your project from our Grand Junction and Montrose, Colorado offices. Our testing capability includes soil materials, concrete, asphalt, and aggregate. We are also able to provide a Project Engineer or Field Technician for observations (e.g. Driven Piles, Drilled Piers, Rebar Installation, Deep Foundations and Testing). These services are provided on an as-needed basis with at least 24 hours advance request by telephone to our material testing scheduling personnel.

Our laboratory testing capabilities include testing equipment for Triaxial Compression Soil Strength and fifteen (15) pressure cells, which are also used for High Pressure Flexible Membrane Permeability tests. We have a six (6) station falling head permeability option. We have three (3) Direct Shear Soil Strength machines and an Unconfined Compression machine for Soil Strength tests. We have Asphalt Marshal test equipment and four (4) Concrete Compression Strength testing machines. Other equipment includes twenty-one (21) consolidation frames, which are used to measure Soil Sample Settlement, Swell Pressure and Expansion Potential. We have equipment to perform Los Angeles Abrasion tests of aggregate samples, California Bearing Ratio tests and Soil Classification tests (e.g. Atterberg Limits & Gradation, Hydrometer & Sieve Analysis and Sand Equivalent tests).

Our laboratory capacities include an Asphalt Binder Ignition oven, Asphalt Vacuum Extraction Machine and an Asphalt Centrifuge. Each is used to determine the asphalt content of an asphalt concrete mix.

Our field technician equipment includes six (6) Campbell Pacific Nuclear Soil Moisture Content/Density Gauges and additional equipment for soil, concrete and asphalt material testing. We have Sand Cone Density equipment for soil testing. Additionally, the technician's trucks are equipped with concrete testing materials/equipment. We have three (3) small/portable coring rigs to obtain core samples from asphalt and concrete flatwork and walls if needed.

We will report to you or your representative and provide you with our comments and test results as the information is generated daily. The test results and daily field reports will also be emailed to you on a regular basis to document the information we submit to you daily on-site as the tests are taken. The rate for our field technician includes the vehicle, all of the equipment necessary to perform the tests requested and the clerical time to type test results and daily field reports.

Monitoring Devices Installation

Lambert and Associates also provide other services tailored to your needs. These include the installation and monitoring of piezometers. We install crack monitoring devices, and we are available to monitor these. When a project does not perform as anticipated, we provide forensic geotechnical engineering consulting to generate mitigation alternatives.

Who We Serve

Lambert and Associates work with a wide variety of clients all over the Western United States.

  • Cities
  • Counties
  • States
  • Utility companies
  • Resort developments
  • Mining and resource companies
  • Land developers
  • Subdivision developers
  • Public and private recreation areas


One of the benefits of working with Lambert and Associates as a contractor is that we bring the know-how, supervision, and specialized equipment to you.

We offer non-biased advice that gets projects off the ground and keeps them running smoothly.

Lambert and Associates offer engineers practical input to their design recommendations, coming in at the end of their process.
Federal Government

We are available to work with other contractors in bidding and executing federal government contracts.
Law Firms

We offer a wide array of litigation support services, including appearing as expert witnesses for cases that involve soil and groundwater issues.