Isani Consultants, L.P.

Designing What Matters

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About the firm

Isani Consultants, L.P. (ISANI) is a multi-discipline consulting engineering firm established in 2000 and headquartered in Houston, Texas. ISANI actively supports local government agencies developing infrastructure in the Houston-Galveston area and holds TxDOT pre-certifications across transportation, drainage, environmental, and utility disciplines. With 250+ completed projects and 100+ satisfied clients, ISANI operates as both prime and sub-consultant on transportation, water and wastewater, drainage, land development, aviation, and program management projects.

Established
2000
Team
Small
Firm type
Aviation Engineering · Civil Engineering · Environmental Engineering · Power & Utility Engineering · Transportation Engineering · Water / Wastewater Engineering

Credentials

TxDOT pre-certified (transportation, drainage, environmental, utility disciplines) · TxDOT DRIVE Mentor-Mentee Program graduate (2024)

Capabilities

Transportation Engineering

Service website

Urban and rural highway design, traffic analysis, roadway rehabilitation, pedestrian and accessibility design, and rail-highway design for TxDOT and local agencies.

  • Urban and rural highway design
  • Geometric design, driveways, and sidewalks
  • Neighborhood street reconstruction
  • Street rehabilitation
  • Pavement evaluation, flexible and rigid pavement design
  • Traffic control plans, signing, and pavement markings
  • Traffic signal design
  • Culvert and bridge design
  • Roadway crossings hydrology and hydraulics analysis
  • Pedestrian facility and accessibility design
  • Rail-highway design
  • Transit design and roundabout design
  • Schematic design
  • Feasibility studies and preliminary engineering reports
  • Major investment studies
  • Stakeholder engagement and public involvement

Drainage Engineering

Service website

Urban drainage, flood control, watershed planning, stormwater management, and FEMA regulatory compliance for roadway and site applications.

  • Urban drainage and channel conveyance
  • Flood studies and flood control
  • Watershed planning and water quality
  • Roadway drainage and stormwater detention
  • Culverts and bridge hydraulics analysis
  • HEC 1D/2D and XPSWMM 1D/2D hydraulic modeling
  • CLOMR and LOMR
  • Erosion and sediment control
  • U.S. Army Corps of Engineers projects
  • FEMA regulations and permits
  • Stormwater Planning and Prioritization Tool (SPPT)
  • Design concept reports
  • Drainage analysis and mitigation reports

Water and Wastewater Management

Service website

Design of water distribution and transmission lines, large-diameter water line replacement, hydraulic modeling, sanitary sewer systems, and utility permitting for municipalities and authorities.

  • Water distribution and transmission design
  • Large-diameter water line replacement
  • Hydraulic modeling of water pipes
  • Sanitary sewer design and extension
  • Utilities replacement and relocation
  • Storm water pollution prevention plans

Land Development

Service website

Site plan development, on-site drainage and stormwater detention, utility connections and permitting, access road and parking paving, and on-site sewage facilities.

  • Site plan development
  • On-site drainage and stormwater detention
  • Utility connections and permitting
  • Paving - access road and parking
  • On-site sewage facilities
  • Improvements in the public right-of-way
  • Project definition manual
  • Due diligence report

Aviation Services

Service website

Airside civil engineering for Houston-area airports including pavement striping, fence construction, storm drain design, ADA and FAA compliance, stormwater management, and utilities assessment. ISANI has contributed to development and redevelopment at George Bush Intercontinental Airport, Hobby Airport, and Ellington Field Airport.

  • Airside pavement striping
  • Airside fence demolition and construction
  • Airside environmental storm drain
  • Airside civil utilities design
  • ADA and FAA compliance
  • Airside utilities condition assessment
  • Stormwater detention - underground and surface
  • Large-diameter water line replacement
  • Storm water quality management plans

Environmental Services

Service website

Environmental review, NEPA compliance, wetland delineation, Section 404/401 permitting, threatened and endangered species, environmental site assessments, GIS mapping, and sustainability planning.

  • NEPA compliance
  • Wetland delineation and 404/401 permitting
  • Section 4(f)/6(f) evaluation
  • Section 408 authorizations
  • Environmental site assessments
  • Threatened and endangered species services
  • Community impacts and Justice 40 assessments
  • Environmental document preparation
  • GIS mapping and data analysis
  • Sustainability planning
  • Environmental compliance management
  • Environmental program management
  • Transportation planning services
  • Public involvement and stakeholder outreach

Utility Engineering

Service website

Subsurface utility engineering, utility adjustment coordination, construction management and verification, and management and coordination oversight for utility relocations.

  • Subsurface utility engineering (utility engineering investigation)
  • Utility adjustment coordination
  • Utility construction management and verification
  • Utility management and coordination oversight

Program and Construction Management

Service website

Construction schedule support, constructability review, plan review, and program management services for public and private infrastructure projects.

  • Construction schedule support
  • Constructability review
  • Plan review

Code Enforcement

Service website

Building code compliance delivered through on-site construction inspections and permit-stage plan review, applied to airport facility build-outs and municipal public works projects across the Houston area.

  • Code enforcement inspections
  • Plans examiner

Disaster Management

Service website

Disaster recovery and emergency infrastructure support for public agencies.

Industries

Infrastructure · Transportation · Highways & Roads · Water Supply · Wastewater · Stormwater & Flood Control · Aviation · Land Development · Government · Education

Projects

Enabling Utilities Landside, George Bush Intercontinental Airport

Houston, TX · Aviation · Client: Houston Airport System

Project details

Preliminary engineering design for elevation of existing filter media, replacement of a 48-inch cracked elbow in the backwash header, replacement of the ClariVac unit in the chlorine contact chamber, replacement of flow meters, and repair of influent junction box gates.

Brazosport Regional Water Authority - Large Diameter Water Line

Brazoria County, TX · Water Supply · Client: Brazosport Water Authority

Project details

Design services for water distribution and transmission involving a large-diameter water line ranging from 30-inch to 42-inch diameter, including various valve types.

Neighborhood Water Line Replacement, Fort Bend Areas

Fort Bend areas, Houston, TX · Water Supply · Client: City of Houston

Project details

Complete design services for replacement of approximately 55,800 linear feet of water lines (6-inch to 16-inch diameter), including traffic control plans, stormwater pollution prevention plans, coordination with adjacent projects, looping for water quality, and pipeline crossings at HCFCD ditches.

Isani Consultants, L.P. - Engineering Firms