Flood Control | Vickrey & Associates

Public Works

Extensive Experience In Hydrologic And Hydraulic Design

VICKREY brings extensive experience in hydrologic and hydraulic design, regional watershed master planning, FEMA floodplain analysis, mapping coordination and mitigation, surveying, USACE environmental permitting and coordination, and project management. The firm has completed comprehensive drainage studies, floodplain analyses, and master plans for the San Antonio Salado Creek Watershed, Bexar County, City of San Antonio, Port San Antonio, and numerous other public and private land development projects.

Our civil engineers have experience relevant to roadway design, street design, linear greenway trails, Natural Channel Design (NCD), Geomorphology, Hydraulic and Hydrologic analysis of drainage natural waterways and storm sewers, FEMA CLOMR and LOMR floodplain analyses, Water Pollution Abatement Plans (WPAP), Storm Water Management Plans (SWMP), detention and water quality basin design, as well as watershed and subwatershed studies in highly dense, urban environments. They routinely work with many modeling programs including XP-SWMM - 1D/2D modeling, HEC-GeoRAS Steady and Unsteady, HEC-GeoHMS, StormCAD, GeoPAK Drainage, and HY-8.

Detention & Water Quality Basins

We also bring strong design experience for storm water detention facilities and water quality basins to reduce the negative downstream impacts of storm water runoff and pollutants. We have designed detention facilities throughout San Antonio, South and Central Texas and offer specialized expertise in the design of water quality basins that meet all TCEQ, COE requirements over the Edwards Aquifer Recharge and Contributing Zones.

Services Include:

Storm water detention facilities
Flood plain analysis
Preliminary detention sizing for site development assessment
Storm sewer drainage design
Complete detention design and hydraulic analysis for single or multiple interconnected ponds
Interstate and highway drainage conveyance systems
Regional detention basin design
Bridge conveyance and scour analysis
Design of dual-purpose retention/irrigation and detention basins
Complex detention designs for offline ponds that require lateral weirs
Sedimentation & filtration basin design which meet TCEQ requirements
Design of alternative best management practices including vegetative filter strips, extended detention basins, bio swales, permeable concrete, Stormceptor® and Aqualogic® filtration systems
Storm water pollution prevention plans (SWPPP)

Rosillo Creek Flood Control

Huebner Creek Conveyance NWCC-17

Bulverde Road at Mud Creek SC-27

Rosillo Creek Flood Control

VICKREY is providing full-time professional construction inspection services for this approximately $7.5M Bexar County Flood Control project that will remove about 160 properties from the 1% annual chance floodplain. The project consists of channel improvements and construction of multiple bridges and bridge-class culvert crossings. Our team of inspectors are providing daily inspection services for the multiple reconstructed bridge and bridge class culvert crossings as well as reconstructed streets and utilities.

Services

Civil

Program & Construction Management

Markets

Public Works

Streets & Drainage

Flood Control

Huebner Creek Conveyance NWCC-17

VICKREY completed a feasibility study, Preliminary Engineering Report, and full Channel reconstruction documents, designed a 1.2-mile City linear greenways trail, and performed complex hydrologic and hydraulic analysis. This project reduces the floodplain limits by 73 acres along approx. 18,000 lf of Huebner Creek for the ultimate 1% chance storm. The channel improvements consisted of approximately 18,000 linear feet of Huebner Creek from just North of Bandera Road south to Loop 410. V&A calibrated and revised the effective FEMA DFIRM HEC GEO-RAS and HEC-GEO-HMS models to develop a unique channel design incorporating natural riparian areas and channel features into the analysis resulting in lower calculated water surface elevations and increased the channel conveyance capacity. The project included channel bank stabilization measures as well as channel excavation (dredging) to increase flow capacity in Huebner Creek. Preservation of over 80% of the existing natural riparian channel areas and approximately 1,000,000 square feet of tree canopy was designed into this flood control project creating a unique natural channel design as well as utilizing aquatic depressions and riffles to create riparian environments. The project also incorporated a preliminary environmental assessment, geotechnical investigation, plugging of existing Edwards Aquifer Authority wells, analysis of land acquisition, and a complex potential pier Scour Analysis.

Services

Civil

Permits, Plats & Construction Documents

Markets

Parks & Linear Trails

Flood Control

Bulverde Road at Mud Creek SC-27

VICKREY provided civil design and survey services for this floodplain mitigation project that included hydrologic and hydraulic analysis of Mud Creek Tributary A to design culvert solutions to remove low water crossings on Bulverde Rd. and Jung Rd. and upgrade a multi-box culvert at Miss Ellie St. Surveying services included boundary and topographic survey.

Services

Civil

Permits, Plats & Construction Documents

Markets