
7NT Enterprises, LLC
Miamisburg, OHProper Execution with Precision
Project: Gordie Howe International Bridge
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Proper Execution with Precision
Project: Gordie Howe International Bridge

Civil Services with a Forward-Thinking Approach
Project: VIA Park and Ride at Stone Oak

Innovative Engineering Solutions for Utility Challenges & Needs
Project: I-35 NEX South Project Electric and Telecom Utility Relocations

Over 50 years of engineering excellence
Project: Berkeley Township SA Bayview Avenue Force Main Replacement

Create. Build. Sustain.
Service detail: Civil Engineering

Excellence. Innovation. Solutions that work.
Project: Surface Water Transmission Program (SWTP)

B.A. Sims Engineering, Inc. is a structural and civil engineering consulting practice located in Long Beach, California. Licensed across multiple U.S. states and Canadian provinces, it provides structural design, civil and construction design, bridge engineering, and public art structural support with rapid response times.
Project: Manhattan Beach Basement Shoring

Clean Water Shaping Stronger Communities
Project: Oakdale Wastewater River Crossing
Creating Space Underground
Project: Champlain Hudson Power Express Trenchless Crossings

Civil engineering, program management, and construction management solutions for water, wastewater, and transportation infrastructure
Project: Huebner Creek Regional Stormwater Facility

Small Firm Service - Large Firm Experience
Project: NW Maynard Water Main Extension and Sidewalk

The Right Team Matters
Project: 100 MW Hydrogen Production Plant
A leading infrastructure engineering and construction management firm moving communities forward.
Project: Bridge Street Bridge Rehabilitation
Innovative water and wastewater engineering consulting services
Service detail: Preliminary Engineering
Geotechnical and Trenchless Engineering Services
Project: CCCSD A-line Relief Interceptor Sewer Project

Engineering Principles Into Everything We Do
Project: Rowe Lane Roadway Improvement

Tunnels and Underground Structures Consultants
Project: City Tunnel No. 3
Delve Underground is a tunnel design and heavy civil engineering firm specializing in the transportation, water, wastewater, and energy industries. Founded in 1954 as Jacobs Associates, it delivers comprehensive design, construction management, and construction claims services for underground infrastructure, drawing on expertise across civil, structural, geotechnical, mechanical, and architectural disciplines. Headquartered in Seattle, WA, Delve Underground serves clients across North America and internationally.
Service detail: Tunnels and Underground Engineering
Where Technical Imagination Lives
Service detail: Water and Wastewater Utility Engineering

Professional civil and environmental engineering solutions
Service detail: Engineering and Design

Industry leader specializing in sewer repair and pipe lining
Service detail: Pipe Rehabilitation
Professional geotechnical services throughout the Pacific Northwest
Project: OSU Upper Division Undergraduate and Graduate Student Housing

Engineering Excellence for Over 50 Years
Project: Les Murakami Stadium Turf Replacement

Caring people. Quality work.
Project: 1918 Eighth Avenue Shoring Design