Kapolei Parkway Extension, Phases 8A, 8B and 8C

Location: Oahu, Hawaii
Client Name: City and County of Honolulu, Department of Design and Construction
Date Completed: 2007
Construction Cost: $25,600,000
Disciplines Applied: Surveying & Mapping, Civil EngineeringPlanning & Permitting

Project Description:

As prime design consultant for the project, RMTC prepared construction drawings for 6,050 linear feet of six-lane travelway improvements within a 116-foot wide right-of-way, including a landscaped median and shoulders as well as water, sewer, cured in place pipe (CIPP) for 8-inch sewer rehabilitation, drainage and electrical/communication utilities and a bike/jogging path. This project was the 8th Phase of the Ewa Villages Revitalization Project and was separated into three design packages, Phase 8A, 8B and 8C.

Phase 8A, included the median and makai travel lanes, begins at the existing Kapolei Parkway in Ewa by Gentry, crosses the OR&L Railroad right-of-way, and continues to Renton Road. The Kapolei Parkway/Park Row Extension intersection and the OR&L Railroad right-of-way crossing were incorporated into the design of Phase 8A. The entire roadway alignment required topographic survey, geotechnical investigation, and flood plain and hydraulic analyses. Phase 8B involved the design of a 6-lane roadway and median from Renton Road to the North-South Road intersection at the northwest boundary of Ewa Villages. Phase 8C involved the design of the mauka travel lanes and shoulder between Renton Road and Ewa by Gentry.

New potable water, sewer, drainage, electrical/communication, street lighting, landscaping and irrigation improvements are included in the design. Coordination with the planners of the undeveloped lands in Ewa Villages was also required to complete the construction drawings. RMTC completed design and prepared construction documents; an NPDES permit; topographic surveys; and parcel mapping.