Questa provides complete planning and engineering services, including initial concept plans and feasibility studies, environmental analysis and permitting, hydraulic modeling and inventory, final plans and design drawings, bid assistance, and construction/implementation supervision.

Hydrology, Hydraulics, and Stream Geomorphology

• Fluvial geomorphic investigations

• Sediment yield and transport studies

• Reservoir sedimentation

• Aggradation, degradation, and scour analysis

• Non-structural watershed treatment

Channel Design and Drainage

• Biotechnical streambank stabilization plans

• Erosion control plans

• Site drainage plans

• Hydrology and hydraulics analysis

• Channel and culvert design

• Subsurface drainage systems

Watershed Management Plans

• Flood damage assessments

• Environmentally sensitive flood control plans

• Detention and retention facilities

• Surface runoff pollution control

• Reservoir design and operation

• Land use hydrologic impacts

Wetland and Stream Restoration and Enhancement

• Concept plans and design drawings for tidal, riparian, and  seasonal wetlands,  creek/stream corridors, and vernal ponds

• Surface water hydrology, including river and bay hydraulics

• Fish passage

• Water quality management

• Vegetative management

Hydraulic Structures

• Small dams

• Levees

• Embankments

• Farm ponds

• Urban lakes

• Canals

• Grassed waterways

• Channel improvements

• Pipelines and pump facilities

• Culverts

• Artificial recharge basins

Additional Capabilities

• Wetlands ecology

• Forest and range management

• Urban forestry and revegetation

• Aquatic ecology and fisheries

• Wildlife biology

• Vegetation and plant ecology

• Marine biology

• Planning policy interpretation

• Landscape Architecture

• Site design, public access, and land use planning

• Park and recreation planning

For more information or to set up a consultation, please contact Jeff Peters or Syd Temple at
(510) 236-6114, ext. 206 or 220, respectively.