Engineering Specifications

The following Standard Specifications and Standard Details are to be utilized as minimum standards for all roadway and utility construction within the jurisdiction of the Town of Apex. These standards supersede all previous editions and all amendments previously issued by the Town of Apex.

Last Revisions Adopted: 

PageDescriptionEffective Date
Cover Page (PDF)CoverAugust 12, 2025
Section 100 (PDF)Preliminary Considerations & InstructionsJune 11, 2024
Section 200 (PDF)General ProvisionsJune 11, 2024
Section 300 (PDF)StreetsSeptember 24, 2024
Section 400 (PDF)Soil Erosion & Sedimentation ControlAugust 12, 2025
Section 450 (PDF)Utility TrenchesJune 11, 2024
Section 500 (PDF)Storm DrainageAugust 12, 2025
Section 600 (PDF)Water Distribution SystemJune 11, 2024
Section 620 (PDF)Cross Connection ControlJune 11, 2024
Section 700 (PDF)Wastewater Collection SystemsJune 11, 2024
Section 800 (PDF)Wastewater Pumping Stations & Force MainsJune 11, 2024
Section 900 (PDF)Greenway TrailsAugust 12, 2025


Standard Details - Overall                                        PDF                           DWGApproved Product List
Section 200PDFDWG
Section 300PDFDWG
Section 400PDFDWG
Section 450DWG
Section 500PDFDWG
Section 600PDFDWGApproved Products List
Section 620PDFDWG
Section 700PDFDWGApproved Products List
Section 800PDFDWGApproved Products List
Section 900PDFDWG


Section 200 - General Provisions

 Std. #Sheet #DescriptionEffective DatePDFDWG
 200.011/1Underground Electrical Service ConnectionDecember 3, 2002
PDFDWG
 200.021/2Dumpster Pad & EnclosureFebruary 28, 2023PDFDWG
 200.022/2Dumpster Pad & EnclosureFebruary 28, 2023
PDFDWG
 200.031/1Safety RailJanuary 12, 2021
PDFDWG
 200.041/1ParkingNovember 19, 2019
PDFDWG
 200.051/1HandrailAugust 12, 2025
PDFDWG
 200.061/1Tree Protection FenceFebruary 28, 2023PDF
DWG
 200.071/1EV Charging Space
April 9, 2024PDF
DWG

Section 300 - Streets

Std. #Sheet #DescriptionEffective DatePDFDWG
300.011/4Street Typical Sections (Residential)April 9, 2024
PDFDWG
300.012/4Street Typical Sections (Collector/2-Lane Thoroughfare)April 9, 2024
PDFDWG
300.013/4Street Typical Sections (3&6-Lane Thoroughfare)April 9, 2024
PDFDWG
300.014/4Street Typical Sections (4-Lane Thoroughfare)April 9, 2024
PDFDWG
300.021/1Cul-De-SacNovember 20, 2007
PDFDWG
300.031/1Concrete Curb & GutterFebruary 28, 2023PDFDWG
300.041/1Method of Removing Existing CurbApril 12, 2022
PDFDWG
300.051/1Method of Ending CurbDecember 3, 2002
PDFDWG
300.061/1Curb DrainDecember 3, 2002
PDFDWG
300.071/2Driveway ApronApril 9, 2024
PDFDWG
300.072/2Driveway ApronApril 12, 2022
PDF
DWG
300.081/1Concrete SidewalkJune 13, 2023
PDFDWG
300.091/14Curb Ramp (Location)August 12, 2025
PDFDWG
300.092/14Curb Ramp (New Development)February 28, 2023
PDFDWG
300.093/14Curb Ramp (New Development)February 28, 2023
PDFDWG
300.094/14Curb Ramp (New Development)
February 28, 2023PDF
DWG
300.09
5/14Curb Ramp (Retrofit)
February 28, 2023
PDF
DWG
300.09
6/14Curb Ramp (Retrofit)
February 28, 2023
PDF
DWG
300.09
7/14Curb Ramp (Retrofit, Shared Flare)
February 28, 2023
PDF
DWG
300.09
8/14Curb Ramp (Islands)
February 28, 2023
PDF
DWG
300.09
9/14Curb Ramp (Detectable Warning Placement)
February 28, 2023
PDF
DWG
300.09
10/14Curb Ramp (Pedestrian Refuge)
February 28, 2023
PDF
DWG
300.09
11/14Curb Ramp (Detectable Warning - Pavers)
February 28, 2023
PDF
DWG
300.09
12/14Curb Ramp (Detectable Warning - Surface Applied)
February 28, 2023
PDF
DWG
300.09
13/14Curb Ramp (Detectable Warning - Cast-In-Place)
August 12, 2025
PDF
DWG
300.09
14/14Curb Ramp (General Notes)February 28, 2023
PDF
DWG
300.101/1Street Cross Section Showing Utility LocationsApril 12, 2022
PDFDWG
300.111/2Conduit Crossing for Driveways & SidewalksDecember 3, 2002
PDFDWG
300.112/2Conduit Crossing for Driveways & SidewalksDecember 3, 2002
PDFDWG
300.121/1Shoulder Section Without SidewalkDecember 3, 2002PDFDWG
300.131/1Trench & Pavement Repair SectionsNovember 20, 2007
PDFDWG
300.141/1Street Geometric StandardsApril 12, 2022PDFDWG
300.151/1Barricade for Dead End RoadsApril 9, 2024
PDFDWG
300.161/1Pavement Widening Taper & MarkingsApril 12, 2022
PDFDWG
300.171/1Speed HumpApril 9, 2024
PDFDWG
300.181/1Speed Table - Elevated CrosswalkApril 9, 2024
PDFDWG
300.191/1Hi-Visibility (mid-block) CrosswalkNovember 20, 2007PDFDWG
300.201/1Bicycle ParkingNovember 20, 2007
PDFDWG
300.211/1Median Island Traffic Calming DeviceMarch 7, 2017PDFDWG
300.221/1Neckdown Traffic Calming DeviceMarch 7, 2017
PDFDWG
300.231/1Neighborhood Traffic Mini-CircleApril 9, 2024
PDFDWG
300.241/1Fire Lane Pavement MarkingDecember 21, 2010
PDFDWG
300.251/1Stub Street Turn-AroundJune 13, 2023
PDFDWG
300.261/4Street Signs - GeneralSeptember 24, 2024PDFDWG
300.262/4Street Signs - Placement & InstallationApril 9, 2024
PDFDWG
300.263/4Street Signs - 3/8-inch Bolt HolesNovember 19, 2019
PDFDWG
300.264/4Street Signs - Breakaway Sign InstallationApril 9, 2024
PDFDWG
300.271/1Right-in / Right-out Channelized IslandFebruary 28, 2023
PDFDWG
300.281/1Driveway GradesSeptember 4, 2018PDFDWG
300.291/1Single-lane RoundaboutSeptember 24, 2024
PDFDWG
300.301/1Aggregate Shoulder DrainNovember 19, 2019PDFDWG
300.311/1Subdivision EntranceNovember 19, 2019
PDFDWG
300.321/3Bus StopApril 12, 2022PDFDWG
300.322/3Bus StopApril 9, 2024
PDFDWG
300.323/3Bus StopApril 12, 2022PDF
DWG
300.331/1Multi-use PathFebruary 28, 2023PDF
DWG
300.341/1Crosswalk LightingAugust 12, 2025PDF
DWG
300.351/2Rectangular Rapid Flash Beacon (Meter)January 28, 2025PDF
DWG
300.352/2Rectangular Rapid Flash Beacon (Solar)
January 28, 2025
PDF
DWG

Section 400 - Soil Erosion & Sedimentation Control

Std. #Sheet #DescriptionEffective DatePDFDWG
400.011/2Temporary Silt FenceJune 11, 2024PDFDWG
400.012/2Temporary Silt Fence    
June 11, 2024PDF
DWG
400.021/1Temporary Silt Fence OutletJune 11, 2024PDFDWG
400.031/1Catch Basin Riser / FilterJune 11, 2024PDFDWG
400.041/1Catch Basin & Yard Inlet ProtectionJune 11, 2024PDFDWG
400.051/1Check DamJune 11, 2024PDFDWG
400.061/2Construction EntranceJune 11, 2024
PDFDWG
400.062/2Construction EntranceJune 11, 2024PDFDWG
400.071/1Diversion DitchJune 11, 2024PDFDWG
400.081/1Block & Gravel Drop Inlet ProtectionJune 11, 2024PDFDWG
400.091/1Gravel & Rip Rap Horseshoe Inlet Basin for Existing Pipe InvertsJune 11, 2024PDFDWG
400.101/1Pipe Inlet Protection (Plywood & Stone)June 11, 2024PDFDWG
400.111/2Temporary Stream CrossingJanuary 20, 2015PDFDWG
400.112/2Temporary Stream CrossingJune 11, 2024PDFDWG
400.121/2Riser Barrel Sediment BasinJune 11, 2024PDFDWG
400.122/2Riser Barrel Sediment BasinJune 11, 2024PDF
DWG
400.131/2Skimmer Sediment BasinsJanuary 20, 2015PDFDWG
400.132/2Skimmer Sediment BasinsJanuary 20, 2015
PDFDWG
400.141/1Skimmer DetailJune 11, 2024PDFDWG
400.151/1Rip Rap Lined ChannelsJune 11, 2024PDFDWG
400.161/1Temporary Silt DitchJune 11, 2024PDFDWG
400.171/1Temporary Slope DrainJune 11, 2024PDFDWG
400.181/1Pipe OutletJune 11, 2024PDFDWG
400.191/1Inlet Sediment Control DeviceJune 11, 2024PDFDWG
400.201/1Temporary Concrete WashoutMay 5, 2020PDFDWG
400.211/1WattleJune 11, 2024PDF
DWG
400.221/1Filter Bag With Gravel PadJune 11, 2024PDFDWG
400.231/1Temporary Pump AroundJune 11, 2024PDF
DWG
400.241/1Existing Pond Dam BreachJune 13, 2023PDF
DWG
400.251/1Temporary Asphalt DiversionJune 11, 2024PDF
DWG

Section 450 - Utility Trenches

Std #Sheet #DescriptionEffective DatePDFDWG
450.011/1Water Main Pipe Backfilling
March 23, 2021
PDF
DWG
450.021/1
Sanitary Sewer Pipe Bedding & Backfilling
March 23, 2021
PDF
DWG
450.031/1
Concrete Repair
March 23, 2021
PDF
DWG
450.041/1
Trench & Pavement Repair Section for Asphalt
March 23, 2021
PDF
DWG
450.051/1
Trench & Pavement Repair Section for Concrete
March 23, 2021
PDF
DWG
450.061/1
Bore & Jack
March 23, 2021
PDF
DWG
450.071/1
HDD Transition Fitting
March 23, 2021
PDF
DWG
450.081/1
Vertical Bend
March 23, 2021
PDF
DWG
450.091/1
Concrete Cradle
March 23, 2021
PDF
DWG
450.101/1
Anti-seep Collar
March 23, 2021
PDF
DWG
450.111/1Open Cut DitchMarch 23, 2021
PDF
DWG
450.121/2
Vehicle Crossing at Stream
March 23, 2021
PDF
DWG
450.122/2Vehicle Crossing at Stream
March 23, 2021
PDF
DWG
450.131/1Tracer Wire
March 23, 2021
PDF
DWG

Section 500 - Storm Drainage

Std. #Sheet #DescriptionEffective DatePDFDWG
500.011/1Yard Inlet w/ ConcreteAugust 12, 2025
PDFDWG
500.021/1Yard Inlet w/ Grate & FrameDecember 18, 2012
PDFDWG
500.031/1Grate Placement Detail for Catch BasinsDecember 3, 2002PDFDWG
500.041/1Block Catch Basin DetailDecember 18, 2012
PDFDWG
500.051/1Precast Catch Basin DetailMarch 6, 2018PDFDWG
500.061/1Precast Manhole Junction BoxDecember 18, 2012
PDFDWG
500.071/3Median Curb InletDecember 3, 2002
PDFDWG
500.072/3Median Curb InletDecember 3, 2002
PDFDWG
500.073/3Median Curb InletDecember 3, 2002
PDFDWG
500.081/1Frame Detail for Catch BasinsDecember 3, 2002
PDFDWG
500.091/1Storm Drain Pipe Bedding & BackfillingAugust 12, 2025PDFDWG

Section 600 - Water Distribution System

Std. #Sheet #DescriptionEffective DatePDFDWG
600.011/33/4" & 1" Water Service & Meter BoxJune 11, 2024PDFDWG
600.012/33/4" & 1" Water Service & Meter BoxJune 11, 2024PDFDWG
600.013/33/4" & 1" Water Service & Meter BoxJune 11, 2024PDF
DWG
600.021/11-1/2" & 2" Meter Installation & VaultJune 11, 2024PDFDWG
600.031/23" & Larger Meter Installation & VaultJune 11, 2024PDFDWG
600.032/23" & Larger Meter Installation & VaultJune 11, 2024PDFDWG
600.041/1Blow-Off AssemblyMarch 23, 2021
PDFDWG
600.051/1Hydrant InstallationMarch 23, 2021PDFDWG
600.061/1Hydrant LocationMarch 23, 2021
PDFDWG
600.071/1Yard Hydrant (non-freeze)March 23, 2021
PDFDWG
600.081/1Valve Box InstallationMarch 23, 2021
PDFDWG
600.091/1Valve CoverNovember 20, 2007PDFDWG
600.101/1Capping DetailDecember 3, 2002PDFDWG
600.111/1Thrust Collar InstallationDecember 3, 2002
PDFDWG
600.121/2Air Release Manhole for Water MainsApril 12, 2022
PDFDWG
600.122/2Air Release Manhole for Water MainsMarch 23, 2021
PDFDWG
600.131/1Reaction BlockingMarch 23, 2021
PDF
DWG
600.141/1Multiple Branch ServicesApril 12, 2022
PDFDWG
600.151/1Valve Box Marker for Unpaved AreasMarch 23, 2021
PDFDWG
600.161/1Tapping Sleeve & Post Indicator ValveMarch 23, 2021
PDFDWG
600.171/1Butterfly Valve with 5’ Manhole EncasementMarch 23, 2021
PDFDWG
600.181/1Sampling StationMarch 23, 2021
PDFDWG
600.191/1Sprinkler Riser & Fire Department ConnectionNovember 20, 2007PDFDWG
600.201/1Curb Side Fire Department ConnectionJune 18, 2019PDFDWG
600.211/1Reverse TapMarch 23, 2021
PDFDWG
600.221/1Tapping Sleeve & ValveMarch 23, 2021
PDFDWG
600.231/1Standard Stubout/Capping DetailMarch 23, 2021
PDFDWG

Section 620 - Cross Connection Control

Std. #Sheet #DescriptionEffective DatePDFDWG
620.011/2Typical Service & Irrigation ConnectionsJune 11, 2024PDFDWG
620.012/2Typical Service & Irrigation ConnectionsJune 11, 2024PDFDWG
620.021/2Typical Fire Connections - CommercialJune 11, 2024
PDFDWG
620.022/2Typical Fire Connections - ResidentialJune 11, 2024PDFDWG
620.031/13/4" to 2" Residential & Commercial Irrigation Backflow AssemblyJune 11, 2024PDFDWG
620.041/13/4" to 2" Commercial Outdoor Backflow AssemblyJune 11, 2024PDFDWG
620.051/13/4" to 2" Commercial Indoor Backflow AssemblyJune 11, 2024PDFDWG
620.061/1Commercial Outdoor Backflow Assembly (≥3")June 11, 2024PDFDWG
620.071/1Commercial Indoor Backflow Assembly (≥3")June 11, 2024PDFDWG
620.081/1Yard FDCMarch 6, 2018
PDFDWG
620.091/1Hotbox VUVD FDCMarch 6, 2018
PDFDWG
620.101/1Hotbox Inline FDCMarch 6, 2018
PDFDWG

Section 700 - Wastewater Collection Systems

Std. #Sheet #DescriptionEffective DatePDFDWG
700.011/1Standard Typical Sewer Point Repair
March 23, 2021PDFDWG
700.021/1Sanitary Sewer Tap & ServiceApril 12, 2022PDFDWG
700.031/1Sanitary Sewer Service ConnectionsMarch 23, 2021
PDFDWG
700.041/3Precast ManholeApril 12, 2022
PDFDWG
700.042/3Precast ManholeApril 12, 2022
PDFDWG
700.043/3Precast ManholeApril 12, 2022
PDFDWG
700.051/2Manhole Ring & CoverMarch 23, 2021
PDFDWG
700.052/2Manhole Ring & CoverMarch 23, 2021
PDFDWG
700.061/2Manhole Ring & Cover EncasementJanuary 22, 2014PDFDWG
700.062/2Manhole Ring & Cover EncasementNovember 20, 2007PDFDWG
700.071/1Drop ManholeApril 12, 2022PDFDWG
700.081/1Drop Manhole for Sewer ServiceApril 12, 2022
PDFDWG
700.091/1[HOLD FOR FUTURE USE]


700.101/14" Sanitary Sewer Tap & Service for Sewer Mains Over 13’ DeepMarch 23, 2021
PDFDWG
700.111/1High Velocity Manhole InvertJuly 21, 2015PDFDWG
700.121/1Doghouse Manhole Installation Over Existing Sewer MainMarch 23, 2021
PDFDWG
700.131/1Manhole VentMarch 23, 2021
PDFDWG
700.141/1Cleanout Cover for Vehicle Traffic AreasMarch 23, 2021
PDFDWG
700.151/1Concrete Encasement for Stream CrossingDecember 21, 2010PDFDWG
700.161/1Sanitary Sewer Protection During Construction
March 23, 2021
PDFDWG
700.171/1Sanitary Sewer EasementDecember 21, 2010
PDFDWG
700.181/1Solid Steel Riser Assembly
March 23, 2021
PDF
DWG
700.191/2Oil & Grease Structures
March 23, 2021
PDF
DWG
700.192/2Oil & Grease Structures
March 23, 2021
PDF
DWG
700.201/1Typical Easement Fence Gate
April 12, 2022
PDF
DWG

Section 800 - Wastewater Pumping Stations & Force Mains

 Std. #Sheet #DescriptionEffective DatePDFDWG
800.011/1Force Main Discharge Manhole
March 23, 2021
PDFDWG
800.021/1Plug Valve Box Installation
March 23, 2021
PDF
DWG
800.031/2Sewage Grinder Unit (Wetwell Installation)
March 23, 2021
PDF
DWG
800.032/2Sewage Grinder Unit (Wetwell Installation)
March 23, 2021
PDF
DWG
800.041/2Standard Mag Meter Installation
March 23, 2021
PDF
DWG
800.042/2Standard Mag Meter Installation
March 23, 2021
PDF
DWG
800.051/1Wetwell Hatch
March 23, 2021
PDF
DWG
800.061/1Pump Station Access Road
March 23, 2021
PDF
DWG
800.071/1Typical Chain Link Fence
February 28, 2023PDF
DWG
800.081/1Typical Security Double Gate
March 23, 2021
PDF
DWG
800.091/1Typical Pump Station Layout < 500 GPM
March 23, 2021
PDF
DWG
800.101/1Typical Pump Station Layout > 500 GPM
March 23, 2021
PDF
DWG
800.111/1Air Release Manhole for Sanitary Sewer Force Mains
March 23, 2021
PDF
DWG

Section 900 - Greenway Trails

 Std. #Sheet #DescriptionEffective DatePDFDWG
900.011/1Greenway SectionsAugust 12, 2025
PDF
DWG
900.021/3Boardwalk
January 12, 2021
PDF
DWG
900.022/3Boardwalk
August 12, 2025
PDF
DWG
900.023/3Boardwalk
August 12, 2025
PDF
DWG
900.031/2Greenway Signage
August 12, 2025
PDF
DWG
900.032/2Greenway Signage
August 12, 2025
PDF
DWG
900.041/1Concrete Approach Slab
January 12, 2021
PDF
DWG
900.051/1Bench, Trash, Recycling, Dog Station
August 12, 2025
PDF
DWG
900.061/1Bollard
August 12, 2025
PDF
DWG
900.071/2Greenway Curb RampFebruary 28, 2023PDF
DWG
900.072/2Greenway Curb RampFebruary 28, 2023
PDF
DWG
900.081/1Street-Side Greenway
January 12, 2021
PDF
DWG