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, SWDP 1150-2-1 DEPAR~'IT OF THE ARMY Southwestern Division. Corps of Engineers Main Tower Building, 1200 Main Street Dallas. Texas 75202 Pamphlet No. 1150-2-1 26 May 1978 Local Cooperation CRITERIA FOR ADDITIONAL CONSTRUCTION WITHIN THE LIMITS OF EXISTING FLOODWAYS 1. PURPOSE. This pamphlet has been compiled to provide guidance to local governmental agencies and individuals who desire to construct facilities within the limits of a floodway which has been constructed by the Corps of Engineers and for which local governmental agencies have the responsibility for operation and maintenance. The Corps of Engi- neers retains the right to approval on all improvements which are passed over, under. or through the walls, levees, improved channels, or flood- ways of such projects. 2. APPLICABILITY. This pamphlet applies to all flood protection works which have been constructed by the districts of the Corps of Engineers Southwestern Division and for which a letter of assurances agreeing to '- the operation and maintenance of the floodway has been furnished the Corps of Engineers by the local sponsor. 3. GENERAL CRITERIA. a. Plans and specifications for the proposed work will be submitted to the Operations Division of the appropriate Corps of Engineers district via the local sponsor sufficiently in advance of construction to allow adequate time for review comments and approval. Proposals should be discussed with the district office at the concept level prior to prepa- ration of plans to avoid major revisions. Concept proposals may be submitted to the Engineering Division via the local sponsor for review. The proposed construction starting date should be furnished prior to initiation of work. b. Approved construction methods will be practiced to minimize erosion at the construction site. c. When construction work is in progress in a floodway, . request from the contractor for changes in regulated releases will be considered on an individual basis only. Normally, regulated ~leases from upstream lakes for evacuation of floodwaters, water supply, recreation, or other purposes considered to be in the best interest of the public will have first consideration. \.