RockSol Consulting Group

Thornton, CO

Public profile details are available below.

Services: 38
Offices: 7
Projects: 5
Founded: 1996
Size Estimate: 201-500 employees

Overview

RockSol Consulting Group is a full-service civil and transportation engineering practice founded in 1996. Headquartered in Thornton, Colorado, with multiple regional offices and accredited materials testing laboratories, it delivers engineering services across planning, environmental analysis, structural and geotechnical design, construction management, and inspection. It primarily supports state departments of transportation, federal land agencies, and municipal public works departments throughout the western United States.

Founded: 1996
Size Estimate: 201-500 employees

Services

Transportation Engineering

Delivers comprehensive design and planning solutions for civil transit networks, highways, roads, and bridges from initial scoping through to project completion. It integrates environmental assessment with practical constructability support to optimize project outcomes.

Transportation planning and impact studies Roadway and highway design AASHTO value engineering Interagency and stakeholder coordination

Traffic Engineering

Provides technical designs and analysis focused on motorist safety, structural longevity, and community accessibility. The engineering team implements modern signal, ITS, and V2X wireless communication network technologies.

Traffic signal design ITS and wireless network integration ADA and PROWAG compliance reviews Traffic technology construction management

Structural Engineering

Performs comprehensive analysis and engineering for civil transportation structures. Capabilities span conceptual sizing and layout drawing to final design execution, safety critical reviews, and specialized bridge construction methodologies.

Conceptual and preliminary structural design Final structural design and load analysis Accelerated Bridge Construction implementation Bridge demolition and formwork safety reviews Post-design construction support

Geotechnical Engineering

Conducts detailed subsurface explorations and analytical modeling to support robust civil foundation and pavement structures. Field and laboratory teams evaluate complex soil and rock behaviors to deliver stable, long-lasting designs.

Subsurface and geological investigations Pavement analysis and AASHTO mechanistic design Shallow and deep foundation design Retaining wall analysis Slope stability and landslide modeling Soil stabilization and grout injection

Construction Management and Inspection

Represents project owners through comprehensive on-site administration, constructability reviews, and schedule analysis. Dedicated inspection staff verify alignment with federal, state, and local standards.

Constructability reviews and post-design support Owner representation and project administration Construction schedule analysis DOT documentation compliance

Materials Testing

Evaluates construction materials using state-of-the-art laboratory testing and in-situ verification techniques. Services support compliance with rigorous state and federal Department of Transportation requirements.

Laboratory concrete and asphalt testing Soil and aggregate characterization Mix design verification testing FAA pavement materials testing

Environmental Services

Navigates regulatory compliance and environmental stewardship throughout the project lifecycle. The multidisciplinary team prepares detailed assessments, secures necessary permits, and monitors active work sites.

NEPA studies and decision documentation Stormwater management plan design Environmental permitting and Clean Water Act compliance CEQA compliance and resource surveys

Industries

Government Federal Transportation Highways & Roads Bridges Transit Parks & Open Space

Firm type

Civil Engineering Structural Engineering Geotechnical Engineering Environmental Engineering Transportation Engineering Materials Testing

Project types

Highway Resurfacing and Rehabilitation Express Lane Projects Interchange Projects Bridge Design and Repair Road Improvements State Park Road Infrastructure

Projects

US 40 Berthoud Pass West Resurfacing

Colorado | Colorado Department of Transportation | Highways & Roads

Provided resurfacing engineering and analysis along US 40.

Transportation Engineering

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I-25 North Express Lanes: Segments 5 and 6

Colorado | Colorado Department of Transportation | Highways & Roads

Delivered transportation planning, roadway design, and construction oversight for the development of north express lanes.

Transportation Engineering Construction Management and Inspection

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SH 7 Lower Permanent Repairs

Colorado | Colorado Department of Transportation | Highways & Roads

Administered permanent structural and roadway repairs on State Highway 7.

Transportation Engineering

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CDOT R4 US 85/CR 44 (Peckham) Interchange Project

2023 | Colorado | Colorado Department of Transportation | Highways & Roads

Constructed an updated interchange design and managed the active site to coordinate highway improvements and local access.

Transportation Engineering Construction Management and Inspection

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Cherry Creek State Park Road Improvements

Colorado | CPW Northeast Region | Parks & Open Space

Upgraded state park roadway infrastructure, resolving traffic conflicts and safety requirements.

Transportation Engineering Construction Management and Inspection

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Software

SoilWorks L-Pile Slide 2018 MSEW

Credentials and affiliations

Certifications

ISO 9001:2015 AASHTO Accredited AMRL Accredited CCRL Accredited US Army Corps of Engineers Validated

Testimonials

The knowledge base possessed by RockSol in areas of CDOT construction management and geotechnical services is one of the regions very best. I would encourage anyone seeking these services to consider RockSol as part of their organization's next project.
Project Engineer, CDOT Region 4

It was a pleasure working with RockSol on the project, and we are proud of the successful outcomes achieved through this collaboration. We believe that the work performed on the Cherry Creek State Park Road Improvements Project has significantly enhanced the park's infrastructure, safety, and overall visitor experience.
Project Manager, CPW Northeast Region

Your team managed the documentation and all CDOT funded documentation including multiple CMO's on each project in a very professional manner, which allowed Arvada to successfully complete two very important improvements within our city.
Assistant City Engineer, City of Arvada