Drainage

Engineers at MHR have significant experience in drainage design with extensive modeling skills in hydrology and hydraulics. Over the years MHR has completed many drainage/flood study projects in the public and private sectors.


CAPABILITIES:

  • Watershed Analysis
  • Hydrologic and Hydraulic Modeling
  • Detention Pond Modeling and Design
  • Flood Study and Floodplain Mapping
  • CLOMR and LOMR (Floodplain Revision)
  • Open Channel Design with Recommended BMPs
  • Hydraulic Structure Design (Culvert, Storm Sewer, Weir etc.)
  • Storm Water Management Plan
  • Low Impact Development (LID) Design
  • Base Flood Elevation (BFE) Determination
  • Elevation Certificate

SOFTWARES:

HEC-HMS, HEC-RAS, HEC-1, HEC-2, ArcGIS, HEC-GeoRAS, PondPack, Hydraflow Hydrograph, TR-20, TR-55, HY-8, Winstorm, CulvertMaster, FlowMaster, StormCAD and WaterCAD.

 

TxDOT PRE-CERTIFICATION:

  • 10.1.1¬† Hydrologic Studies
  • 10.2.1¬† Basic Hydraulic Design
  • 10.3.1¬† Complex Hydraulic Design

Featured Projects:

Ingram Road Improvement (City of San Antonio Capital Improvement Project), San Antonio, Texas

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Mountain View Estates Drainage Improvement Project, Phase I (City of San Antonio Public Works Project), San Antonio, Texas

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West Bouldin Watershed Master Plan, (City of Austin Public Works Project), Austin, Texas

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Knoll Creek Flood Study

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FEMA Flood Study/ Huebner Creek-Tributary A Creek, San Antonio, Texas

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FEMA Flood Study/ Panther Springs Creek, San Antonio, Texas:

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Flood Study of Salitrillo Creek Tributary B, San Antonio, Texas

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Drainage Project, Dewitt County Court House, Cuero, Texas:

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Experience with other drainage projects:

Drainage Study/ Winfield Master Development Plan, Laredo, Texas: Performed detailed drainage study for the 600.0 acre watershed, analyzed the existing culverts under Loop 20 (TxDOT) within the relevant watershed and provided designs for the modified channel in the downstream side. The study also included several detention pond designs in order to eliminate the downstream impact from the developments.

Drainage Study/ McDonough Master Development Plan, San Antonio, Texas (104.0 acre tract): Prepared the Master Development Plan (MDP) which included the detailed drainage analysis of Upper Leon Creek Watershed. The hydrologic and hydraulic models for Digital Flood Insurance Rate Map (DFIRM) Study were used in the drainage analysis.

Drainage Study/ McDonough Water Project, San Antonio, Texas: Analyzed 10.5 Sq. mile watershed in Leon Creek for the feasibility study of this water project. The study estimated the receivable runoff from Leon Creek beyond the 2 year storm event. The study also included the considerations of annual average precipitation in the relevant watershed.

DEVELOPMENT PROJECTS WITH DRAINAGEE STUDIES

South Texas Detention Pond Complex, Correctional Services Corporation, Pearsall, Texas: Analyzed a 120.0 acre watershed, develop a model for detention pond, prepared construction plans and storm water management plan

Royal Crest Development, San Antonio, Texas: 90 acre residential development with a total of 444 single family residential lots. Provided watershed analysis and detention design and storm water management.

Comanche Ridge Subdivision- Residential Subdivision with 30 units. Provided detention design and storm water management plan


Culebra Square Project, San Antonio, Texas: Project includes four retail buildings (62,800 sf.), one office building (12,500 sf.) and three restaurants. Provided underground storm system design, adverse impact analysis and storm water management plan.


CorePath Laboratories, San Antonio, Texas: 20,000 sf. medical laboratories at Camp Bullis Road, San Antonio, Texas. Provided detailed flood study for downstream analysis and storm water management plan.


Eagle Point Subdivision, San Antonio, Texas: 20 acre commercial development. Provided storm water management with adverse impact analysis.


Mehar Gardens, Beckwith Blvd, San Antonio, Texas: 8.0 acre mixed development that includes townhomes, retail, apartments and senior housing. Provided underground storm system design, detention design and storm water management.


Zena Gardens, San Antonio, Texas: Residential development with 56 unit townhomes. Provided storm water management with downstream adverse impact analysis.


Sunrise Luxury Homes, Round Rock, Texas: Residential development with 52 unit townhomes. Provided detention design and storm water management plan.


FM 1103 Industrial Park, Cibolo, Texas: Commercial development that includes a total of 74,000 sf retail buildings (7). Provided storm water management.


Bountiful Business Enterprise, Spring Branch, Texas- 16 acre commercial development with 3- 10,000 sf retail buildings. Provided detention design and storm water management plan.


MANY MORE DRAINAGE PROJECTS FOR RESIDENTIAL AND COMMERCIAL DEVELOPMENT PROJECTS COMPLETED BY MHR.