Important Notice
Design values are presented in this document in both metric and U.S. customary units and were developed independently within each system. The relationship between the metric and U.S. customary values is neither an exact (soft) conversion nor a completely rationalized (hard) conversion. The metric values are those that would have been used had this document been presented exclusively in metric units; The U.S. customary values are those that would have been used if this document had been presented exclusively in U.S. customary Units. Therefore, the user is advised to work completely in one system and not attempt to convert directly between the two.
Standards
- DelDOT 2012 Standards (26.8 MB)
If smaller file size is required, this file is divided into six sections below: - 2012 Standards Revisions
- Index of Sheets
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- B-L (2010) - Barrier Legend
- B-1 - Guardrail Applications (Types 1-31, 2-31. and 3-31)
- B-1 (2010) - 1 - Plans Views
- B-1 (2010) - 2 - Elevations Views and Splice Detail
- B-1 (2010) - 3 - Section Views
- B-2 - Grading for Guardrail End Treatments (Types 1, 2, and 3)
- B-2 (2010) - 1 - Guardrail End Treatment, Type 1
- B-2 (2010) - 2 - Guardrail End Treatment, Type 2
- B-2 (2010) - 3 - Guardrail End Treatment, Type 3
- B-3 - Guardrail Over Culverts (Types 1-31, 2-31, and 3-31)
- B-3 (2010) - 1 - Guardrail Over Culverts, Type 1-31
- B-3 (2010) - 2 - Guardrail Over Culverts, Type 2-31
- B-3 (2010) - 3 - Guardrail Over Culverts, Type 3-31
- B-4 (2012) - End Anchorage, Type 31
- B-5 (2010) - Guardrail to Barrier Connection (Types 1-31, 2-31, and Exit Type (31)
- B-5 (2010) - 1 - Guardrail to Barrier Connection, Approach Type 1-31
- B-5 (2010) - 2 - Guardrail to Barrier Connection, Type 1 Hardware
- B-5 (2010) - 3 - Guardrail to Barrier Connection, Bent Plate Rub Rail
- B-5 (2012) - 4 - Guardrail to Barrier Connection, Approach Type 2-31
- B-5 (2010) - 5 - Guardrail to Barrier Connection, Type 2 Hardware
- B-5 (2010) - 6 - Guardrail to Barrier Connection, Exit Type 31
- B-6 - Bridge Rail Retrofit, Types 1, 2, 3, and 4
- B-6 (2010) - 1 - Bridge Rail Retrofit, Entrance and End Applications
- B-6 (2010) - 2 - Bridge Rail Retrofit, Types 1 and 2
- B-6 (2010) - 3 - Bridge Rail Retrofit, Type 2 Hardware
- B-6 (2010) - 4 - Bridge Rail Retrofit, Type 3
- B-6 (2010) - 5 - Bridge Rail Retrofit, Type 4
- B-7 (2010) - W-Beam, Type 1-27 to Type 1-31 Transition Section
- B-8 - RESERVED
- B-9 - RESERVED
- B-10 - RESERVED
- B-11 - RESERVED
- B-12 - RESERVED
- B-13 - Hardware
- B-13 (2010) - 1 - W-Beam Elevation and Section Views
- B-13 (2010) - 2 - W-Beam Steel Post and Offset Block
- B-13 (2010) - 3 - W-Beam Terminal Connector
- B-13 (2010) - 4 - Thrie Beam and Thrie Beam Expansion Element Elevation and Section Views
- B-13 (2010) - 5 - Thrie Beam Steel Post and Offset Block
- B-13 (2010) - 6 - Asymmetric and Symmetric W-Beam to Thrie Beam Transition Section
- B-13 (2010) - 7 - Short and Long Wood Breakaway Posts, Steel Tube, Soil Plate, and Offset Blocks
- B-13 (2012) - 8 - Swaged Cable Assemblage and Hardware
- B-13 (2010) - 9 - Guardrail Delineator and W-Beam Bearing Plate
- B-13 (2010) - 10 - Guardrail Mounted Rail
- B-14 - Concrete Safety Barrier (F Shape)
- B-14 (2012) - 1 - 32" (960) Concrete Barrier, Typical Cast-In-Place or Slip Form Elevation and Section Views
- B-14 (2009) - 2 - 32" (960) Concrete Barrier, Typical Pre-Cast Elevation and Section Views
- B-14 (2009) - 3 - 42" (1050) Concrete Barrier, Typical Cast-In-Place or Slip Form Elevation and Section Views
- B-14 (2009) - 4 - Slotted Plate Connection Details
- B-15 - Guardrail Applications (Types 1-27, 2-27, and 3-27)
- B-15 (2010) - 1 - Plan Views
- B-15 (2010) - 2 - Elevation Views and Splice Detail
- B-15 (2010) - 3 - Section Views
- B-16 - Guardrail Over Culverts (Types 1-27, 2-27, and 3-27)
- B-16 (2010) - 1 - Guardrail Over Culverts, Type 1-27
- B-16 (2010) - 2 - Guardrail Over Culverts, Type 2-27
- B-16 (2010) - 3 - Guardrail Over Culverts, Type 3-27
- B-17 (2010) - Guardrail End Treatment (Type 4-27)
- B-18 (2010) - Curved Guardrail Section
- B-19 (2012) - End Anchorage, Type 27
- B-20 - Buried End Section
- B-20 (2010) - 1 - Buried End Section - Single Rail
- B-20 (2010) - 2 - Buried End Section - Double Rail
- B-20 (2010) - 3 - Post, Concrete Block, and Rubrail Details
- B-21 - Guardrail to Barrier Connection (Types 1-27, 2-27, and Exit Type 27)
- B-21 (2010) - 1 - Guardrail to Barrier Connection, Approach Type 1-27
- B-21 (2010) - 2 - Guardrail to Barrier Connection, Approach Type 2-27
- B-21 (2010) - 3 - Guardrail to Barrier Connection, Exit Type 27
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- C-1 - P.C.C. Curb and Integral P.C.C. Curb & Gutter
- C-1 (2012) - 1 - P.C.C. Curb, Typical Curb Section, and Typical Taper Section At Nose of Medians
- C-1 (2012) - 2 - Integral P.C.C. Curb & Gutter
- C-2 - Curb Ramps
- C-2 (2012) - 1 - Type 1
- C-2 (2012) - 2 - Types 2, 3, & 4
- C-2 (2012) - 3 - Type 5
- C-3 (2012) - Entrances
- C-4 (2012) - Curb Opening Details
- C-5 (2011) - Curb Opening With Sidewalk Detail
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- D-1 - 6:1 Safety End Structure
- D-1 (2001) - 1 - Detail Views
- D-1 (2001) - 2 - Schedules
- D-2 - 10:1 Safety End Structure
- D-2 (2001) - 1 - Detail Views
- D-2 (2001) - 2 - Schedules
- D-3 - Safety Grates
- D-3 (2005) - 1 - Safety End Structure Grate and Assembly Detail
- D-3 (2007) - 2 - Personnel Safety Grate for Pipe Inlet Detail
- D-R (2012) - Drainage Inlet Reference Sheet
- D-4 (2009) - Inlet Box Details
- D-5 - Drainage Inlet Details
- D-5 (2010) - 1 - Drainage Inlet Assembly
- D-5 (2010) - 2 - Drainage Inlet Frame and Grates
- D-5 (2012) - 3 - Drainage Inlet Top Units
- D-5 (2010) - 4 - Drainage Inlet Cover Slab Details
- D-5 (2010) - 5 - Double Inlet Cover Slab Details
- D-5 (2012) - 6 - 34" x 24" Drainage Inlet and Cover Slab Details
- D-5 (2010) - 7 - 34"x 18" Drainage Inlet Details
- D-5 (2010) - 8 - Drainage Inlet Top Unit, Type S
- D-5 (2010) - 9 - Doghouse Inlet Box
- D-6 - Manhole Details
- D-6 (2009) - 1 - Box Manhole Assembly
- D-6 (2001) - 2 - Round Manhole Assembly
- D-6 (2001) - 3 - Manhole, Top Unit, Frame and Cover
- D-6 (2007) - 4 - Box Manhole Cover Slab
- D-7 - Junction Box Details
- D-7 (2009) - 1 - Junction Box Assembly
- D-7 (2007) - 2 - Junction Box Cover Slab
- D-8 (2010) - Pipe Bedding
- D-9 (2008) - Perforated Pipe Underdrain
- D-10 (2011) - Pipe Plugging Detail
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- E-1 (2001) - Incremental Stabilization
- E-2 (2006) - Silt Fence
- E-3 (2005) - Drainage Inlet Sediment Control
- E-4 - Reserved
- E-5 (2006) - Stone Check Dam
- E-6 (2005) - Sediment Trap
- E-7 (2005) - Sediment Trap, Using Drainage Inlet as Outlet
- E-8 - Riser Pipe Assembly for Sediment Trap
- E-8 (2006) - 1 Elevation
- E-8 (2006) - 2 Trash Hood Details
- E-9 (2005) - Erosion Control Blanket Applications
- E-10 (2005) - Riprap Ditch
- E-11 (2005) - Temporary Swale
- E-12 (2005) - Perimeter Dike/Swale
- E-13 (2005) - Earth Dike
- E-14 (2005) - Temporary Slope Drain
- E-15 (2005) - Stilling Well
- E-16 (2005) - Sump Pit, Types 1 & 2
- E-17 (2005) - Dewatering Basin
- E-18 (2005) - Geotextile-Lined Channel Diversion
- E-19 (2005) - Sandbag Diversion
- E-20 (2005) - Sandbag Dike
- E-21 (2005) - Stabilized Construction Entrance
- E-22 (2012) - Skimmer Dewatering Device
- E-23 - Turbidity Curtain
- E-23 (2005) - 1 Floating Turbidity Curtain
- E-23 (2005) - 2 - Staked Turbidity Curtain
- E-24 (2005) - Portable Sediment Tank
- E-25 (2005) - Turf Reinforcement Mat Applications
- E-26 (2006) - Riprap Energy Dissipator Detail
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- L-1 - Planting Details
- L-1 (2006) - 1 - Roadside Shrub Planting Detail
- L-1 (2006) - 2 - Tree Planting Detail
- L-1 (2006) - 3 - Perennial/Ground Cover Planting Detail
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- M-1 (2001) - Right-of-Way Fence
- M-2 (2011) - Right-of-Way Monumentation
- M-3 (2009) - Bollard & Shared-Use Path Details
- M-4 (2011) - Bike Rack Layout Details
- M-5 (2004) - Wood Rail Fence
- M-6 (2011) - Patterned Hot-Mix or Concrete & Brick Paver Details
- M-7 (2006) - Chain Link Fence Details
- M-8 (2007) - P.C.C. Parking Bumper
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- P-1 - P.C.C. Pavement
- P-1 (2001) - 1 - Slab Plan (with Dowel and Tie Locations)
- P-1 (2004) - 2 - Joint and Sealant Details
- P-1 (2001) - 3 - W Bolt, Hook Bolt, Dowel and Tie Bar Details
- P-1 (2001) - 4 - Dowel Support Basket
- P-1 (2001) - 5 - Dowel and Tie Bar Placement Tolerances
- P-2 - P.C.C. Pavement Patching
- P-2 (2008) - 1 - Full Depth Patch, Plan View
- P-2 (2008) - 2 - Full Depth Patch, Section Views
- P-2 (2004) - 3 - Full Depth Patch, Sealant Details, Grout Retention Disk, and Dowel Bar
- P-2 (2001) - 4 - Full Depth Patch, Dowel and Tie Bar Placement Tolerances
- P-2 (2001) - 5 - Partial Depth Patch, Plan and Section Views
- P-3 (2012) - Butt Joint Details
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- T-1 - Conduit Junction Wells
- T-1 (2012) - 1 - Types 1, 2, and 3
- T-1 (2012) - 2 - Type 4
- T-1 (2012) - 3 - Type 5
- T-2 (2011) - Junction Well, Grounding & Bonding for Steel Frames & Lids
- T-3 - Conduit Junction Wells
- T-4 - Cabinet Bases
- T-4 (2012) - 1 - Types M & F
- T-4 (2012) - 2 - Type P & R
- T-5 - Pole Bases
- T-5 (2012) - 1 - Round Base & Round Base With Square Foundation
- T-5 (2012) - 2 - Typical Section and Installation(Bases 1, 2, 2A, 2B, 3, 3A, 3B, and 7)
- T-5 (2012) - 3 - Typical Section (Bases 5 and 6), Type 7 Ground Rod Detail, and Pole Base Data Chart
- T-5 (2012) - 4 - Typical Section (Base 4) and Anchor Detail
- T-6 (2011) - Special Pole Base
- T-7 (2005) - Sign Foundation
- T-8 (2012) - Loop Detector to Conduit Junction Connection
- T-9 (2012) - Loop Detector Installation & Splice Kit Details
- T-10 - **Detail Removed in 2012 Revision**
- T-11 - Intermediate Messenger Wire Attachment
- T-11 (2005) - 1 - Intermediate Messenger Wire Attachment on Wood Poles
- T-11 (2005) - 2 - Angular Intermediate Messenger Wire Attachment
- T-12 - Messenger Wire Attachment
- T-12 (2005) - 1 - Span Wire Attachment Between Poles
- T-12 (2005) - 2 - Dead End Messenger Wire Attachment
- T-13 - Conduit Junction Wells
- T-13 (2005) - 1 - Type 6
- T-13 (2006) - 2 - Type 7
- T-13 (2006) - 3 - Types 8 and 10
- T-14 - Emergency Preemption Receiver
- T-14 (2006) - 1 - Upright Mount
- T-14 (2005) - 2 - Inverted Mount
- T-15 (2009) - Breakaway Sign Post and Pin Assembly Details
- T-16 (2010) - Wood Barricade Details