Federal Highway Administration, Loudoun Tech Center, 21400 Ridgetop Circle, Sterling, Virginia 20166-6511

Y -- TECHNICAL PROPOSAL FOR DESIGN/BUILD CONCEPTUAL DOCUMENTS FOR SIX RETAINING WALLS ON U.S ROUTE 421 / BLUE RIDGE PARKWAY INTERCHANGE PROJECT NC NHF 421(10) SOL DTFH71-96-R-00004 DUE 062896 POC Contact for verifying availibility of documents: Contract Specialist Sue Stanton, 703-285-0006; Contact for technical information: Engineering Coordinator, Robert Sparrow, 703-285-0075; Contracting Officer, Gary L. Klinedinst. Technical Proposals will be accepted from specialty geotechnical retaining wall contractors for design/build conceptual documents for the construction of six tieback/soil nail retaining walls on Project NC NHF 421(10) in Watauga County, North Carolina. The project consists of the reconstruction of the interchange of U.S. Route 421 and the Blue Ridge Parkway, and will include the construction of a new concrete box girder structure, and the widening of U.S. Route 421 to a four lane divided highway. This scope of work requires the construction of six retaining walls with a total exposed face area of approximately 6850 square meters, and heights ranging from 5 to 10 meters. The type of wall construction is to be either tieback or soil nail. Request for Technical Proposals No. DTFH71-96-R-00004 is to be issued on or about May 23, 1996. This will be a two-step selection process. The first phase will consist of the submittal of company documentation and conceptual wall designs. The second phase will be to have those firms deemed acceptable in the first phase prepare final wall designs for incorporation into the project's final plans and specifications. All documents will be furnished to the Government at no cost. A clause will be included in the final documents stating that the specific wall designs will only be constructed by the firm which developed the design. These phases will be completed by October 1996. The project is expected to be advertised in the spring of 1997. Plans, geotechnical reports, and other documentation will be available on or after the issuance date, from the Federal Highway Administration, Eastern Federal Lands Highway Division, 21400 Ridgetop Circle, Sterling, Virginia 20166-6511, telephone: 800-892-8776, at no charge to bidders, subcontractors, and suppliers. Please call to verify availability of the bid documents. All requests for bid documents and planholder's lists will be mailed first class. It is strongly recommended that all requests for bid documents and planholder's lists be received 7 calendar days before bid opening to ensure receipt of requested materials. Requests for 'faxing' or overnight mailing will not be accepted. Rock cores and soil samples will be available for review between 9:00 am and 3:00 pm, Monday through Friday, at the National Park Service's Bluff Maintenance Area Located at mile post 245.5 of the Blue Ridge Parkway. Please call Mr. Ray Shaw at (910) 372-8867 to schedule a review. Technical Proposals will be due on or about June 28, 1996, at 2:00 pm, local time, at the Office of the Division Engineer, Federal Highway Administration, Eastern Federal Lands Highway Division, 21400 Ridgetop Circle, Sterling, Virginia 20166-6511. A project orientation meeting is scheduled for 10:00 am, June 17, 1996 at the project site (0143)

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