Civil Engineering

Our civil engineers have accumulated a wealth of experience in the unique aspects of cold-region design. Their thorough understanding of sedimentation and erosion control promotes recommendations for sustainability that has been applied to varied situations. Civil site development projects completed by TNH include large grading and drainage, waterlines, water and sewer treatment plants, site planning, roads, and parking lots.

Effective and efficient water and wastewater systems are essential for the survival of a community infrastructure. TNH specializes in the planning and design of water and wastewater treatment systems, sewage pump station designs, storm drainage systems, water pump and booster stations, and water distribution systems. Our engineers have the capability to conduct hydrologic and hydraulic analysis of large rivers and small streams for infrastructure development and river crossings throughout Alaska, identifying the magnitude of design flood events, associated water surface elevations, and velocity distribution.

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