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.
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DelDOT 2009 Standards 
If smaller file size is required, this file is divided into four sections below: |
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DelDOT 2009 Standards Pages 1-35 |
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DelDOT 2009 Standards Pages 36-70 |
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DelDOT 2009 Standards Pages 71-105 |
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DelDOT 2009 Standards Pages 106-154 |
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2009 Standards Revisions |
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Index of Sheets - 1 |
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Index of Sheets - 2 |
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Index of Sheets - 3 |
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Index of Sheets - 4 |
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Index of Sheets - 5 |
| B-L (2001) |
Barrier Legend  |
| B-1 |
Guardrail Applications |
| B-1 (2004) - 1 |
Plans - (Type 1, Type 2, and Type 3) |
| B-1 (2004) - 2 |
Elevations and Splice Detail |
| B-1 (2002) - 3 |
Section Views |
| B-1 (2007) - 4 |
Grading for Guardrail End Treatment, Type 1 |
| B-1 (2007) - 5 |
Grading for Guardrail End Treatment, Type 2 |
| B-1 (2007) - 6 |
Grading for Guardrail End Treatment, Type 3 |
| B-2 (2009) - 1 |
Guardrail Over Culverts, Type 1 |
| B-2 (2009) - 2 |
Guardrail Over Culverts, Type 2 |
| B-2 (2009) - 3 |
Guardrail Over Culverts, Type 3 |
| B-3 (2009) |
Guardrail End Treatment, Type 4 |
| B-4 (2007) |
Curved Guardrail Section |
| B-5 (2002) |
End Anchorage |
| B-6 |
Buried End Section |
| B-6 (2002) - 1 |
Buried End Section |
| B-6 (2002) - 2 |
Buried End Section |
| B-6 (2002) - 3 |
Post, Concrete Block, & Rubrail Anchor Details |
| B-7 |
Guardrail to Barrier Connection, Approach Type 1 |
| B-7 (2005) - 1 |
Plan, Elevation, and Sections |
| B-7 (2001) - 2 |
Wood Blockout, Rub Rail Wood Blocks, Bearing Plate, Rub Rail to Barrier Connection Details |
| B-7 (2001) - 3 |
Bent Plate Rub Rail Details |
| B-8 |
Guardrail to Barrier Connection, Approach Type 2 |
| B-8 (2005) - 1 |
Plan, Elevation, and Sections |
| B-8 (2001) - 2 |
Notes, Bent Rail Details, Block Schedule |
| B-9 (2002) |
Guardrail to Barrier Connection, Exit Type |
| B-10 (2004) |
Bridge Rail Retrofit, Type 1 |
| B-11 |
Bridge Rail Retrofit, Type 2 |
| B-11 (2004) - 1 |
Plan, Section A-A, Base Plate Detail |
| B-11 (2001) - 2 |
Base Plate Detail and Steel Guardrail Post |
| B-12 (2001) |
Bridge Rail Retrofit, Type 3 |
| B-13 |
Hardware |
| B-13 (2004) - 1 |
W-Beam Details |
| B-13 (2004) - 2 |
W-Beam Steel Post and Offset Block |
| B-13 (2004) - 3 |
W-Beam Terminal Connector |
| B-13 (2004) - 4 |
Thrie Beam Details |
| B-13 (2004) - 5 |
Thrie Beam Steel Post and Offset Block |
| B-13 (2004) - 6 |
W-Thrie Beam Transition Section |
| B-13 (2008) - 7 |
Wood Block, Soil Plate, Short Wood Breakaway Post, Steel Tube, Long Wood Breakaway Post |
| B-13 (2004) - 8 |
Swaged Cable and Related Hardware Assembly |
| B-13 (2004) - 9 |
Reflectorized Washer and Bearing Plate Detail |
| B-13 (2004) - 10 |
Guardrail Bolt & Recessed Nut |
| B-13 (2004) - 11 |
5/8" (16) Hex Bolt & Recessed Nut |
| B-13 (2004) - 12 |
5/16" (24) Hex Nut & Steel Washer, 5/8" (16) Carriage Bolt, Hex Nut, & Steel Washer |
| B-13 (2005) - 13 |
Guardrail Mounted Rail |
| B-14 |
Concrete Safety Barrier (F Shape) |
| B-14 (2009) - 1 |
32" (960) Concrete Safety Barrier (F Shape) Cast-in-Place |
| B-14 (2009) - 2 |
32" (960) Concrete Safety Barrier (F Shape) Pre-Cast |
| B-14 (2009) - 3 |
42" (1050) Concrete Safety Barrier (F Shape) |
| B-14 (2009) - 4 |
Slotted Plate Connection Details |
| B-15 |
Portable Concrete Safety Barrier (F Shape) |
| B-15 (2001) - 1 |
Plan, Elevation, and Section View (Detail Deleted - See Specifications) |
| B-15 (2001) - 2 |
Curve Section (Detail Deleted - See Specifications) |
| B-15 (2001) - 3 |
Tapered End Section (Detail Deleted - See Specifications) |
| B-15 (2001) - 4 |
Typical Reinforcement Details (Detail Deleted - See Specifications) |
| B-15 (2001) - 5 |
Joint Connection Details (Detail Deleted - See Specifications) |
| C-1 (2009) |
P.C.C. Curb, P.C.C. Curb & Gutter, and Hot-Mix Curb |
| C-2 |
Curb Ramps |
| C-2 (2008) - 1 |
Type 1 |
| C-2 (2008) - 2 |
Types 2, 3, & 4 |
| C-2 (2008) - 3 |
Sections for Types, 2, 3, & 4 |
| C-2 (2006) - 4 |
Type 5 |
| C-3 (2008) |
Entrances |
| C-4 |
Curb Openings |
| C-4 (2001) - 1 |
Types A, B, & C |
| C-4 (2001) - 2 |
Types D & E |
| C-4 (2001) - 3 |
Types F & G |
| 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 (2001) |
Safety Grates |
| D-3 (2005) - 1 |
Safety End Structure Grate & Assembly Detail |
| D-3 (2007) - 2 |
Personnel Safety Grate for Pipe Inlet Detail |
| D-4 (2009) |
Inlet Box Details |
| D-5 |
Drainage Inlet Details |
| D-5 (2009) - 1 |
Drainage Inlet Assembly |
| D-5 (2009) - 2 |
Drainage Inlet Frame and Grates |
| D-5 (2009) - 3 |
Drainage Inlet Top Units |
| D-5 (2009) - 4 |
Drainage Inlet Cover Slab Details |
| D-5 (2009) - 5 |
Double Inlet Cover Slab Details |
| D-5 (2009) - 6 |
34" (865) x 24" (610) Drainage Inlet and Cover Slab Details |
| D-5 (2009) - 7 |
34" (865) x 18" (455) Drainage Inlet Details |
| D-5 (2009) - 8 |
Drainage Inlet Top Unit, Type S |
| D-5 (2002) - 9 |
Lawn Inlet Details (Information on this sheet has been combined with D-4, Sheet 1 of 1) |
| D-6 |
Manhole Details |
| D-6 (2009) - 1 |
Box Manhole Assembly |
| D-6 (2001) - 2 |
Round Manhole Assembly |
| D-6 (2001) - 3 |
Manhole 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 (2001) |
Pipe Bedding |
| D-9 (2008) |
Perforated Pipe Underdrain Detail |
| D-10 (2007) |
Pipe Plugging Detail |
| E-1 (2001) |
Incremental Stabilization |
| E-2 (2006) |
Silt Fence |
| E-3 (2005) |
Drainage Inlet Sediment Control |
| E-4 (2001) |
Curb Inlet Sediment Control |
| 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, Type 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 (2006) |
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 |
| 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 |
| M-1 (2001) |
Right-of-Way Fence |
| M-2 (2008) |
Concrete Monument |
| M-3 (2009) |
Bollard & Shared-Use Path Details |
| M-4 (2007) |
Bike Rack Details |
| M-5 (2004) |
Wood Rail Fence |
| M-6 (2004) |
Patterned Hot-Mix or Concrete and Brick Paver Details |
| M-7 (2006) |
Chain Link Fence Details |
| M-8 (2007) |
P.C.C. Parking Bumper |
| 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 & Tie Bar |
| P-1 (2001) - 4 |
Dowel Support Basket |
| P-1 (2001) - 5 |
Dowel & Tie Bar |
| 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, Dowel Bar |
| P-2 (2001) - 4 |
Full Depth Patch, Dowel Bar Placement Tolerances |
| P-2 (2001) - 5 |
Partial Depth Patch, Plan and Section Views |
| P-3 (2009) |
Butt Joint Details |
| T-1 (2005) |
Conduit Junction Well, Types 1, 2, and 3 |
| T-2 (2005) |
Conduit Junction Well, Type 4 |
| T-3 (2005) |
Conduit Junction Well, Type 5 |
| T-4 (2005) |
Cabinet Bases (Type "M" and "P") |
| T-5 |
Pole Bases |
| T-5 (2005) - 1 |
Round Base, Square Base |
| T-5 (2005) - 2 |
Typical Section (Bases 1, 2, 2A, 2B, 3, 3A, 3B, and 7), Typical Section (Base 4), Typical Installation (Bases 1, 2, 2A, 2B, 3, 3A, 3B, 4, and 7) |
| T-5 (2008) - 3 |
Typical Section (Bases 5 and 6), Anchor Bolt Data Chart and Details |
| T-6 (2005) |
Special Pole Base |
| T-7 (2005) |
Sign Foundation |
| T-8 (2005) |
Loop Detector to Conduit Junction Well Connection |
| T-9 (2005) |
Type #1 Loop Detector |
| T-10 (2005) |
Type #2 Loop Detector |
| T-11 |
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 |
Conduit Junction Well, Type 6 |
| T-13 (2006) - 2 |
Conduit Junction Well, Type 7 |
| T-13 (2006) - 3 |
Conduit Junction Well, Types 8 & 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 |
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