U. S. Army Corps of Engineers, Omaha District, 215 North 17th Street, Omaha, NE 68102-4978

Y -- PERRY CREEK FLOOD PROTECTION PROJECT - PHASE I, SIOUX CITY, IOWA SOL DACW45-95-B-0058 DUE 052495 POC Contact Contracting Division at: (402)221-4266. The work will include the following: (Approx. quantities) The work consists of furnishing all plant, labor, materials, and equipment and performing all work to remove the existing 48 LF concrete and sheet pile outlet structure from an existing buried 50' X 14' concrete conduit and constructing a new 232.5 LF reinforced concrete structure (transition, chute and drop structure) at the conduit's outlet at the Missouri River. Other work associated with the new outlet structure consists of utility relocations, grading, riprap placement and seeding. Work inside the buried (covered) conduit consists of modifying the conduit by sawcutting and removing a 30 foot width of the center portion of the reinforced concrete floor slab for 742 LF of existing conduit, installing temporary bracing inside the conduit, excavating beneath the center portion of the conduit, installing auger placed grout piles, and placing reinforced conrete slabs within the new excavation. Work near the Missouri River most likely will require construction of a temporary cofferdam and dewatering of the foundation soils for construction of the outlet structure and modification of the exiting conduit, depending on river stages at the time of construction. Work inside the conduit will have to occur with limited headroom and will require diversion of stream flows around the work area. The estimated construction cost of this project is between $2,500,000 and $5,000,000. Contractor's Quality Control will be a requirement in this contract. The Contractor will be required to commence work within 10 days after notice to proceed and complete the work 400 calendar days after receipt of Notice to Proceed. Provisions will be included for liquidated damages in case of failure to complete the work in the time allowed. Performance and payment bonds will be required. Bid sets will be available on/a April 24, 1995. Half-size plans and specifications will be furnished upon request and receipt of payment of $26.00 per set (non-refundable) with check made payable to ''Omaha District, Corps of Engineers.'' Please list street address (for parcel del service) and mailing address. SPECIAL NOTES: All responders are advised that this requirement may be cancelled or revised at any time during the solicitation, selection, selection evaluation, negotiation and/or final award structure and disposition of US Armed Forces. Small & Disadvantaged Businesses are encouraged to participate & will be used to maximum extent practicable as both prime & subcontractor. (0083)

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