Alvin ISD Mason Elementary

Manvel, Texas

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Costello was hired to provide civil site design services for the replacement elementary school for the existing EC Mason Elementary facility. Services included flood plain mitigation, storm water management (detention ponds), and offsite repaving and widening of School Road (a City of Manvel street), which serves as the main entrance to the school for buses and car pick-up/drop-off.

Relevant Project Services

  • Civil site design
  • Street/paving design
  • Flood plain mitigation
  • Storm water management (detention ponds)
  • Offsite public (wet) utility extensions
  • Bid/award phase services
  • Construction phase services

Project Size and Cost

  • 12 acres
  • Facility – 103,000 sq. ft.
  • Construction cost: $2.1M

Unique Project Attributes

  • Flood plain mitigation
  • Storm water management (detention ponds)
  • Offsite extension of storm water conveyance
  • Adjoining public street re-pavement and widening

Challenges Faced

  • Unmapped City utility conflicts required extensive waterline offsets
  • TxDOT driveway permitting for FM 1128 alternate entry

Resolutions & Results

  • Coordination with City and ISD for waterline offset layout and re-design


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