If any Contract Documents are not sufficiently clear to permit Contractor to proceed with the work, Division or Engineer shall, either upon their own initiative or upon the request of Contractor, furnish additional written instructions, together with additional drawings as may be necessary. Requests by Contractor must be made sufficiently far in advance to permit preparation of instructions and drawings by Engineer before commencement of the work. For purposes of avoiding delays in the preparation of any additional instructions and drawings, Engineer and Contractor shall jointly prepare a schedule showing the time for commencement of the work to be included in them and the time by which Contractor shall furnish the shop drawings necessary for their preparation. No work shall be performed by Contractor without proper drawings or instructions. Contractor shall at Contractor's expense, replace any wrongly executed work. This project is the reclamation of the Johnson AML site in Marion County, Iowa. In general, the workincludes, but isnotlimited to impoundment discharge, clearing, grubbing, excavation, channel construction, pipe installation, sediment anderosion control, and permanent seeding. Bid quantities include but are not limited to 9.8 acres of clearingandsitepreparation, 93,600 cubic yards of excavation, 47 tons of Class E riprap, 336 lineal feet of channel construction, 840squarefeet of tied block mat, and 9.6 acres of permanent upland seeding. A complete list of bid items is providedwiththeplans. Questions concerning the Plans and Construction Specifications should be addressed to Wallace Greenlees, P.E., 515-281-5643. All other questions concerning other Contract Documents should be addressed to Angie Sebastian, ProjectCoordinator, 515-822-1538. In order to be considered in a final addendum, written questions must be receivednolaterthanAugust 22, 2023. This project shall comply with Davis-Bacon Wage Requirements The anticipated cost of construction to reclaim the site is expected to range from$320,000 to $395,000. *The value for this project is based on a financial range. The value is listed as the highest possible cost from the range provided by a stakeholder or official project document.