We specialize in highly technical and complex projects that integrate natural resource management with heavy civil construction for the benefit of human and ecological health. We excel at delivering projects that are subject to resource agency permits and include work within sensitive ecological resources and challenging environmental conditions. 



Stream Restoration & Reconstruction

Hanford implements the leading methods in stream and riparian restoration and reconstruction. From roadside tributaries to scenic National Park locales, we understand the sensitive ecosystems and light footprint necessary to rehabilitate natural processes. 

  • Stream realignment and reconstruction, including decommissioning old channels, daylighting and bank stabilization

  • Fish habitat improvement through dam removal, fish passage structures, habitat complexity via wood or rock structures

  • Rock structures such as barbs, weirs, deflectors, bank toe protection, riprap, grade control structures, and riffle/pool construction.

  • Wood structures such as large wood debris (including with rootwads), bioengineered dams (beaver dam analogs), log weirs, and other structures to create complex habitat

  • Soil bioengineering such as vegetated soil lifts, brush mattresses, and willow wattles (fascines)

  • Bank stabilization through natural fiber mats, blankets and revetments

  • Precast concrete and steel bridges, installed in a manner to alleviate stream and floodplain constriction, and open fish passage

  • Design and install complex stream bypass, dewatering, and filtering systems in order to protect existing wildlife, habitat and to provide optimal construction conditions


Wetland Restoration & Mitigation

Hanford has worked with a range of stakeholders in the field of wetland restoration and reconstruction to develop methods to rehabilitate this sensitive and important habitat. Freshwater and saltwater wetlands, meadows, and floodplains provide valuable habitat for many aquatic species and are home to a remarkable diversity of native plant life. These sensitive habitats are often the most impacted from human activities.

  • Employ plug and pond method to fill incised main channels within a wetland to restore ponding and sinuous multi-channel flows

  • Detailed grading to achieve varied gradients for seasonal and perennial wetland zones

  • Vernal pool restoration and mitigation

  • Amphibian habitat construction such as breeding ponds

  • Wood structure installation such as beaver dam analog construction to aid in aggradation of incised channels

  • Design and install complex stream bypass, dewatering, and filtering systems in order to protect existing wildlife, habitat and to provide optimal construction conditions


Public Facilities Construction

Hanford has extensive experience working in park settings through many of the restoration projects we have constructed. Many native landscape restorations have park facility components in order to better connect the community to the restored landscape. 


  • Pedestrian and vehicular bridges (timber, steel, aluminum)

  • Levees and water control structures

  • Slope stabilization and reconstruction

  • Water and sewer utility systems

  • Pond and small dam construction, outlet structures, spillways

  • Stormwater facilities, drainage systems, water diversion structures


  • Multi-use and ADA compliant trails

  • Retaining structures (natural rock wall, Sutter walls, tie-backs)

  • Pathways, benches, fencing, general landscaping

  • Trail stabilization, including use of special geosynthetics and geo-composites

  • Low impact water crossings


  • Park construction & renovation

  • Ballfield construction & renovation

  • Schoolyard field renovation