08-13-2020 Council Packet - Laserfiche WebLink

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July 20, 2020 page 32 a. Minimum right-of-way widths. 1357 Principal arterial, intermediate arterial As recommended by the State Department of Transportation Minor arterial 80 feet Collector 70 feet Local 50 feet Parkway 100 feet Cul-de-sac 50 feet radius 1358 b. Rights-of-way are needed for future roadways in the opinion of the city. 1359 c. Right-of-way widths or additional widths in existing rights-of-way in excess of the standards 1360 designated in this chapter when, due to topography, additional width is necessary to provide 1361 adequate earth slopes. Such slopes shall not be in excess of 3:1. 1362 (b) Railroads and limited-access roadways. Railroad rights-of-way and limited-access roadways where 1363 so located as to affect the subdivision of adjoining lands shall be treated as follows: 1364 (1) In residential districts, a buffer strip at least 25 feet in depth shall be provided adjacent to the 1365 railroad right-of-way or limited-access roadway. 1366 (2) In districts zoned for business, commercial or industrial uses, the nearest street extending parallel 1367 or approximately parallel to the railroad shall be at a sufficient distance to ensure suitable depth 1368 for commercial or industrial sites. 1369 (3) Streets parallel to the railroad when intersecting a street which crosses the railroad at grade shall 1370 be at a distance of at least 150 feet from the railroad right-of-way. Such distance shall be 1371 determined with due consideration of the minimum distance required for future separation of 1372 grades by means of appropriate approach gradients. 1373 (4) Roadways crossing the railroads shall be avoided. 1374 (c) Intersections. 1375 (1) Roadways shall be laid out so as to intersect as nearly as possible at right angles. A proposed 1376 intersection of two new streets at an angle or less than 75 degrees shall not be acceptable. An 1377 oblique street should be curved approaching an intersection and should be approximately at right 1378 angles for at least 100 feet from the intersection. Not more than two streets shall intersect at any 1379 one point unless specifically approved by the city. 1380 (2) Proposed new intersections along one side of an existing street shall coincide with any existing 1381 intersections on the opposite side of such street. Intersection jogs with centerline offsets of less 1382 than 150 feet shall not be permitted, except where the intersected street has separated dual drives 1383 without median breaks at either intersection. Where streets intersect collectors or arterials,, their 1384 alignment shall be continuous. Intersections of arterial roadways shall be at least 800 feet apart. 1385 (3) Minimum curb radius at the intersection of two local streets shall be at least 15 feet, and 1386 minimum curb radius at an intersection involving a collector street or local streets in a commercial 1387 or industrial area shall be at least 25 feet. Alley intersections and abrupt changes in alignment 1388 within a block shall have the corners cut off in accordance with standard engineering practice to 1389 permit safe vehicular movement. 1390