CHAPTER I: DEPARTMENT OF TRANSPORTATION
SUBCHAPTER f: HIGHWAYS
PART 550 POLICY ON PERMITS FOR ACCESS DRIVEWAYS TO STATE HIGHWAYS
SECTION 550.ILLUSTRATION B TABLE OF ENTRANCE LAYOUT REQUIREMENTS
Section 550.ILLUSTRATION B Table of Entrance Layout Requirements
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NONCOMMERCIAL RURAL |
NONCOMMERCIAL URBAN |
COMMERCIAL RURAL |
COMMERCIAL URBAN |
INDUSTRIAL-COMMERCIAL-RECREATIONAL HGH-VOLUME TRAFFIC GENERATORS |
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WIDTH OF DRIVE |
12' Min. 24' Max. |
35' Max. (60' Max. 6' from Edge of Pavement) |
35' Max. (85' Max. at Curb) |
2@24' or 35' Max. |
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RADII OF FLARE |
10' Min. 30' Max. |
5' Min. 15' Max. |
10' Min. 40' Max. |
10' Min. 25' Max. |
30 – 50' or 3 C.C. |
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ANGLE OF DRIVE |
60º - 90º |
*45º - 90º |
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ISLAND AREA |
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10' Min. at ROW 5' Min. Radius 10' Min 6' from Pavement |
6' Min. at Edge of Pavement and at ROW 5' Min. Radius |
4' – 18" Wide Median |
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DISTANCE FROM PROPERTY LINE (To any part of driveway or flare) |
0' Min. |
5' Min. (6' from Edge of Pavement) |
3' Min. |
10' Min. |
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DISTANCE FROM INTERSECTING STREET |
**50' Min. |
***5' Min. |
**50' Min. |
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**100' Min. |
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5' Min. from beginning of flare to extension of intersecting road ROW |
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DISTANCE BETWEEN DRIVES |
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10' Min. (6' from Edge of Pavement and at ROW) |
6' Min. (at Edge of Pavement and at ROW) |
440' Min. 660' Desirable |
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* 45º permitted only for one-way drives; 60º minimum for two-way drives.
** From edge of intersecting road to beginning of driveway flare.
*** Undisturbed length of curb between driveway flare and intersecting street flare.