Morrisville Engineering, Design, and Construction Manual - July 2016

Table of Contents

4.8.1. Portland Cement Concrete.............................................................................................................................................. 29

4.8.2. Course Standards ............................................................................................................................................................. 30

4.8.3. Other ................................................................................................................................................................................... 30

SECTION 5: PARKING AND LOADING ........................................................................................ 31 5.1. Parking Lots.....................................................................................................................................31

5.1.1. Parking Space and Aisle Dimensions............................................................................................................................ 31

5.1.2. Abutting Sidewalk Width ............................................................................................................................................... 31

5.1.3. Surfacing ............................................................................................................................................................................ 31

5.1.4. Cut and Fill Slopes............................................................................................................................................................ 31

5.2. Loading Areas .................................................................................................................................31 SECTION 6: STORMWATER COLLECTION SYSTEMS ..................................................................... 32 6.1. General ...........................................................................................................................................32

6.1.1. Purpose ............................................................................................................................................................................... 32

6.1.2. Applicability ...................................................................................................................................................................... 32 6.2. General Requirements.....................................................................................................................32

6.2.1. Town-Maintained .............................................................................................................................................................. 32

6.2.2. Privately Maintained ....................................................................................................................................................... 32

6.2.3. Easement Standards......................................................................................................................................................... 32 6.3. Design Standards ............................................................................................................................33

6.3.1. Basis for Design................................................................................................................................................................. 33

6.3.2. General Standards .......................................................................................................................................................... 34

6.3.3. Drainage Pipes ................................................................................................................................................................. 35

6.3.4. Open Channel Systems.................................................................................................................................................... 35

6.3.5. Inlets..................................................................................................................................................................................... 35

6.3.6. Culverts ............................................................................................................................................................................... 35 6.4. Materials .........................................................................................................................................36

6.4.1. Pipe Materials................................................................................................................................................................... 36

6.4.2. Drainage Structure Materials ........................................................................................................................................ 37 6.5. Excavation And Preparation ...........................................................................................................37

6.5.2. Trench Dimensions ............................................................................................................................................................. 38

6.5.3. Trench Protection............................................................................................................................................................... 38 6.6. Installation ......................................................................................................................................38

6.6.1. General .............................................................................................................................................................................. 38

6.6.2. Inlets and Outlets .............................................................................................................................................................. 39 6.7. Pipe Laying and Backfilling.............................................................................................................39

6.7.1. Pipe Laying ........................................................................................................................................................................ 39

6.7.2. Backfill................................................................................................................................................................................. 39

SECTION 7: STORMWATER MANAGEMENT ................................................................................ 41 7.1. Purpose ...........................................................................................................................................41 7.2. Design .............................................................................................................................................41

7.2.1. General .............................................................................................................................................................................. 41

7.2.2. Water Quantity (Hydrology)......................................................................................................................................... 41

Morrisville, NC

July 2016

Engineering, Design, and Construction Manual

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