Airside Improvements Program Bush IAH - Project No. 555-Terminals B&C North Ramp Extension

Houston, Texas


Construction Cost: $14.6 million

Project Description: This project involved paving 6 islands between several taxiways covering approximately 16 acres for the purposes of taxiing, parking or shoulder protection.  RBI was responsible for the drainage design for these islands.

Designed Storm system improvements to FAA and City of Houston Standards.  Performed Hydraulic Analysis for storm sewer capacity analysis and pipe system analysis.  Performed Hydrologic analysis utilizing HEC-1 and HEC-2 models for 10, 50 and 100-year flow rates.  Due to environmental considerations, slotted drains with aircraft rated manholes and inlet structures with fuel traps, were designed to capture first flush flow (accumulated jet fuel and other petroleum products) during periods of rainfall.

A 685-ft. 2-compartment 8.5' x 5' box culvert was designed to connect the existing 3- 8.5' x 5' and 8' x 4' boxes.  This box culvert is the major conduit for drainage from the north apron, terminal and apron ramp.  Use of  this aircraft rated box will facilitate extension of taxiways in the future.  More than 6,000 linear feet of 36", 24" and 18" storm sewer was designed for jack & bore under existing taxiways and open cut construction methods.  Also designed were 2,000 linear feet of slotted drains.


Our Mission
Is to develop a close working relationship with our clients to meet their engineering and architectural challenges professionally, ethically and cost effectively. Each client's need becomes Ratnala & Bahl, Inc. objective.
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