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SEP 141991 C State of Florida DEPARTMENT OF ENVIRONMENTAL REGULATION INTEROFFICE MEMORANDUM Box 47 PAGE 455 1 ST. JOHNS RIVER DISTRICT MEMO TO: File THROUGH: Beverley Birkitt THROUGH: Walter. H. Wheeler FROM: Reese Kessler DATE: August 31, 1981 SUBJECT: 31-39798, Indian River County Indian River Boulevard Extension The applicant has modified the original proposal by revising the mean high water elevation from 2.2 ft. (msl) to 0.8 ft. (msl) and providing a .2 mile segment of road between the North end of Indian River Boulevard (proposed) and the East end of Barber Avenue. The section of land between the two roads'consistg of a dirt road that originally was part of a mosquito control impoundment dike. Adjacent to the road is a tidal drainage ditch. This ditch is vegetated by scattered mangrove and flows Southernly toward the North canal (Va.ssinburg Creek) . The proposed modification is not expected to have a significant adverse ef- fect on Marinc biological rC—sources . The original r ^. nmrn � �ti r ...._. � on for minimizing the proposed road are still offered. The flapgate on the culverts must be on the upstream side to restore natural tidal innundation of the swamp. Downstream flagpgate will only drain the impoundment at the benefit of the property owner and not the general public. Therefore flapgates on the upstream side of the culvert or entire removal of the culvert (or plugged culvert) are suggested. For Routing To District Offices And/Or To Other Than The Addresses To: Loctn.: To: Loctn.: I To: Loctn.: From: Date: ) Reply Optional ( ) Reply Required ( ) Into. Only ( ) Date Due: Date Due: _ ST. JOHNS RIVER DISTRICT MEMO TO: File THROUGH: Beverley Birkitt THROUGH: Walter. H. Wheeler FROM: Reese Kessler DATE: August 31, 1981 SUBJECT: 31-39798, Indian River County Indian River Boulevard Extension The applicant has modified the original proposal by revising the mean high water elevation from 2.2 ft. (msl) to 0.8 ft. (msl) and providing a .2 mile segment of road between the North end of Indian River Boulevard (proposed) and the East end of Barber Avenue. The section of land between the two roads'consistg of a dirt road that originally was part of a mosquito control impoundment dike. Adjacent to the road is a tidal drainage ditch. This ditch is vegetated by scattered mangrove and flows Southernly toward the North canal (Va.ssinburg Creek) . The proposed modification is not expected to have a significant adverse ef- fect on Marinc biological rC—sources . The original r ^. nmrn � �ti r ...._. � on for minimizing the proposed road are still offered. The flapgate on the culverts must be on the upstream side to restore natural tidal innundation of the swamp. Downstream flagpgate will only drain the impoundment at the benefit of the property owner and not the general public. Therefore flapgates on the upstream side of the culvert or entire removal of the culvert (or plugged culvert) are suggested.