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INDIAN RIVER COUNTY <br />PUBLIC WORKS DEPARTMENT <br />TRAFFIC ENGINEERING DIVISION <br />TRAFFIC CONTROL DEVICES MAINTAINED BY INDIAN RIVER COUNTY <br />July, 2010 <br />VI. SPEED LIMIT ZONES ON COLLECTOR/ARTERIAL ROADWAYS (continued) <br />ROADWAY FROM TO SPEED LIMIT(M.P.H.) <br />20th Avenue 21st Street SW 17th Lane SW 35 <br />20th Avenue 17th Street SW Oslo Road 30 <br />20th Avenue Oslo Road 18t Street SW 45 <br />20th Avenue 1St Street SW SR 60 35 <br />Old Dixie Hwy South County Line 12th Street 40 <br />Old Dixie Hwy 12th Street Seminole Avenue 35 <br />Old Dixie Hwy Seminole Avenue 20th Street 30 <br />Old Dixie Hwy U.S. 1 49th St 35 <br />Old Dixie Hwy 49th St CR 510 45 <br />I.R. Drive South U.S. 1 Sebastian Cty Lmt 30 <br />I.R. Drive Sebastian City Lmt North U.S. 1 30 <br />6th Avenue U.S. 1 21St Street 30 <br />I.R. Boulevard U.S. 1 37th Street 45 <br />I.R. Boulevard 376 Street Grand Hbr Blvd 55 <br />I.R. Boulevard Grand Harbor Blvd 53rd Street 45 <br />NOTE: In accordance with Florida Department of Transportation speed zoning <br />regulations, Florida Statutes Chapter 316, and nationally adopted traffic <br />engineering practices (M.U.T.C.D. — Manual on Uniform Traffic Control Devices), <br />the speed limit on County roadways shall be set as close as possible to the 85th <br />percentile speed; that is, the speed which 85 percent of free-flowing vehicles are <br />traveling at or below. In residential areas, the speed limit on paved roadways shall <br />be posted at 30 miles per hour. <br />Page 14 of 17 <br />