Within all floodplains where a floodway has not been delineated, the following standards shall apply.
(A) (1) Except as provided in division (B) below, no development shall be allowed which, acting in combination with existing and anticipated development, will cause any increase in flood heights or velocities or threat to public health and safety.
(2) The following specific development activities shall be considered as meeting this requirement:
(a) Barge fleeting facilities meeting the conditions of IDOT/DWR Statewide Permit No. 3;
(b) Aerial utility crossings meeting the conditions of IDOT/DWR Statewide Permit No. 4;
(c) Minor boat docks meeting the conditions of IDOT/DWR Statewide Permit No. 5;
(d) Minor, non-obstructive activities meeting the conditions of IDOT/DWR Statewide Permit No. 6;
(e) Outfall structures and drainage ditch outlets meeting the conditions of IDOT/DWR Statewide Permit No. 7;
(f) Underground pipeline and utility crossings meeting the conditions of IDOT/DWR Statewide Permit No. 8;
(g) Bank stabilization projects meeting the conditions of IDOT/DWR Statewide Permit No. 9;
(h) Accessory structures and additions to existing residential buildings meeting the conditions of IDOT/DWR Statewide Permit No. 10;
(i) Minor maintenance dredging activities meeting the conditions of IDOT/DWR Statewide Permit No. 11; and
(j) Any development determined by IDOT/DWR to be located entirely in a flood fringe area.
(B) Other development activities not listed in (A) may be permitted only if:
(1) A permit has been issued for the work by IDOT/DWR (or written documentation is provided that an IDOT/DWR permit is not required); and
(2) Sufficient data has been provided to FEMA when necessary to approve a revision of the regulatory map and base flood elevation.
(1999 Code, § 15-1-6)