Design and Construction Standards and Related Resources
0. Table Of Contents
1. General Drawings
2. Transportation Drawings
- 2.01a: Curb & Gutter
- 2.01b: Curb & Gutter Joints
- 2.02a: Concrete Walk & Multi-Use Paths
- 2.02b: Integral Curbwalk
- 2.02c: Concrete Walk & Multi-Use Path Joints
- 2.02d: Multi-Use Path Section Detail
- 2.03: Crosspan and Radii Curb Return Accesses
- 2.04a: Curb Extension Detail
- 2.04b: Curb Extension Cross Sections
- 2.06: Typical Alley Paving Section
- 2.07: Curb Ramp Details
- 2.11: Survey Monument Range Box
- 2.12: Intersection Pin Range Box
- 2.13: Valve Box Adjustment
- 2.21: Driveway Ramp Detached Walk
- 2.22a: Driveway Ramp Curbwalk - CDOT Type 1
- 2.22b: Driveway Ramp Curbwalk - CDOT Type 2
- 2.31: Chase Drain, Curbwalk
- 2.32: Chase Drain, Detached Sidewalk
- 2.41: Median, Paved Cover
- 2.42a: Median, Paved Curb Skirt
- 2.42b: Median, Brick Curb Skirt
- 2.42c: Median/Curb Separated Bike Lane
- 2.43a: Bike Ramp and Pre-Cast Curb Buffer
- 2.43b: Direction Indicator Strip
- 2.44a: Floating Bus Stop Detail
- 2.44b: Floating Bus Stop Cross Sections
- 2.44c: Floating Bus Stop Notes
- 2.51: Bicycle Path Cross-Section
- 2.52a: Inverted "U" Bicycle Racks A
- 2.52b: Inverted "U" Bicycle Racks B
- 2.53 Inverted “U” Bicycle Racks on Rails
- 2.54: Accessible Parking Stall
- 2.61a: Non-Residential Street Cross-Section Example A
- 2.61b: Non-Residential Street Cross-Section Example B
- 2.61c: Non-Residential Street Cross-Section Example C
- 2.63: Residential Collector Cross-Section
- 2.64: Residential Street Cross-Section
- 2.65: Rural Residential Street Cross-Section
- 2.66: Residential Access Street Cross-Section
- 2.67: Residential Access Lane Cross-Section
- 2.68: Residential Alley Cross-Section
- 2.71a: Portland Cement Concrete Pavement
- 2.71b: Portland Cement Concrete Pavement
- 2.71c: Portland Cement Concrete Pavement
- 2.71d: Portland Cement Concrete Pavement
- 2.72: Straight Retaining Wall Expansion Joint
- 2.81: Sign Installation Details
- 2.86: Accessible Parking Sign Details
- 2.87: Street Name Sign Mounting Details
3. Utilities Drawings
- 4.01: Utility Trenches, 16" Wide or Less
- 4.02: Utility Trenches, Wider Than 16"
- 4.03: Pipe Bedding
- 4.04: Restoration of Asphalt Street Excavations, Streets Less
- 4.05: Telecommunications Conduit and Cable Encroachments
- 4.06: Concrete Encasement
- 4.07: Stream Crossing
- 4.08: Groundwater Barrier
- 4.09a: Pipe Casing With Casing Spacers
- 4.09b: Pipe Casing With Wood Skids
- 5.01a: Water Line Lowering, Utility Line Crossing Only
- 5.01b: Water Line Lowering, Culvert Crossing Only
- 5.01c: Water Line Lowering, Drainageway Crossing Only
- 5.02: Sewer Crossing
- 5.03: Tie Rod Specifications
- 5.04: Tie Rod and Washer Details
- 5.05: Tie Rod Coupling
- 5.06: Flange Lug Detail
- 5.07: Clamp Details for Use With Ductile Iron Pipe Only
- 5.07a: Table of Dimensions for Clamps
- 5.08: Combination Flanged Harness Lug Details
- 5.09: Mechanical Joint Restraint Details
- 5.10: Buried Ductile Iron Pipe Joint Restraint for 12"
- 5.11: Valve Box
- 5.12: Fire Hydrant Placement
- 5.13: Fire Hydrant Installation, Types 1, 2 and 3
- 5.14: Horizontal Thrust Block
- 5.15: Vertical Thrust Block
- 5.16a: Standard 3/4"-1" Service
- 5.16b: Standard Meter Pit, 3/4"-1" Services
- 5.17a: Standard 1 1/2"-2" Service
- 5.17b: Standard Meter Setting, 1 1/2"-2" Services (Current Version)
- 5.17b: Standard Meter Setting, 1 1/2"-2" Services (Old Version)
- 5.17c: Standard 1 1/2"-2" Meter Setting
- 5.17d: Standard 1 1/2"-2" Irrigation Service
- 5.18a: Standard 3" and 4" Service (Current Version)
- 5.18a: Standard 3" and 4" Service (Old Version)
- 5.18b: Standard Meter Pit, 3" and 4" Services (Current Version)
- 5.18b: Standard Meter Pit, 3" and 4" Services (Old Version)
- 5.18c: Standard 3" and 4" Meter Setting
- 5.18d: Meter Pit Depth Adjustment, 3" and 4" Service
- 5.19: Combination 3/4" Domestic/Fire Sprinkler Meter
- 5.20: Combination 1" Domestic/Fire Sprinkler Meter Setting
- 5.21: Valve Box, 1 1/2"-2" Fire Sprinkler Line
- 5.22: Standard Combination Air Valve Manhole
- 6.01: Standard Sewer Manhole
- 6.02: Standard Drop Sewer Manhole
- 6.03: Manhole Invert
- 6.04: Standard Manhole, Bolt-Down, Water-Tight, Frame and Cover
- 6.05a: Extruded Aluminum Manhole Step
- 6.05b: Polypropylene Reinforced Plastic Manhole Step
- 6.06: Sewer Service Line
- 7.01: Storm Sewer Manhole
- 7.02: Storm Sewer Manhole Base
- 7.03: Flat Top for Shallow Manholes Less Than 6' in Height
- 7.04a: Single No. 16 Open Throat Inlet, Adjustable Box
- 7.04b: Single No. 16 Open Throat Inlet, Adjustable Curb Box
- 7.05a: Double No. 16 Open Throat Inlet, Adjustable Curb Box
- 7.05b: Double No. 16 Open Throat Inlet, Adjustable Curb Box
- 7.06a: Triple No. 16 Open Throat Inlet, Adjustable Curb Box
- 7.06b: Triple No. 16 Open Throat Inlet, Adjustable Curb Box
- 7.07: No. 16 Grate and Frame, Adjustable Curb Box
- 7.08a: Type "R" Curb Inlet
- 7.08b: Type "R" Curb Inlet
- 7.08c: Type "R" Curb Inlet
- 7.08d: Type "R" Curb Inlet
4. Streetscape Drawings
- 3.01a: Streetscape Tree Spacing and Location
- 3.01b: Streetscape Tree Spacing Location
- 3.02: Trees and Shrubs Planting Detail
- 3.03: Tree Grate for Sidewalk Planting
- 3.04: Grade Change Around Existing Trees
- 3.11: Sample Landscape Protection Plan
- 3.12: Protected Root Zone and Drip Line
- 3.13: Root Loss From Tunneling
- 3.21: Irrigation Pressure Vacuum Breaker
- 3.22: Irrigation Reduced Pressure Backflow Assembly
- 3.23: Irrigation Pressure Reducing Valve
- 3.24: Irrigation Gate Valve
- 3.25: Irrigation Drain Valve
- 3.26: Irrigation Quick Coupling Valve
- 3.27: Irrigation Control Valve
- 3.28: Irrigation Valve Assembly Spray
- 3.29: Irrigation Drip Valve
- 3.31: Irrigation Quick Coupler
- 3.32: Irrigation Spray Head
- 3.33: Irrigation Pop-Up Shrub Spray Head
- 3.34: Irrigation Bubbler Detail
- 3.35: Irrigation Fixed Head and Riser
- 3.36: Irrigation Rotary Head
- 3.37: Irrigation Drip Details
- 3.38: Irrigation Typical Trickle Fittings
- 3.39: Irrigation Trenching and Pipe Installation
- 3.40: Irrigation System Thrust Blocks
- 3.41: Irrigation System Controller
- 3.42: Irrigation System Wire Connection
5. Erosion & Sediment Control - Deleted From the DCS as of June 20, 2019
- 7.20: Gravel Curb Inlet Filter
- 7.21: Gravel Drop Inlet Filter
- 7.22: Block and Gravel Drop Inlet Filter
- 7.23: Straw Bale Sediment Control at Catch Basins
- 7.24: Straw Bale Check Dams
- 7.25: Straw Bale Installation
- 7.26: Prefabricated Silt Fence Installation
- 7.27: Orientation of Netting and Matting
- 7.28: Installation of Netting and Matting
- 7.29: Sediment Trap
- 7.30: Temporary Gravel Construction Entrance
CDOT & RTD Standard Drawings
- M-608-1: CDOT Curb Ramp Details
- SD-A100A: Architectural Pedestrian Shelter Plans
- SD-C120: Civil Bus Stop Layout
- SD-C123: Civil Bus Pad
Multi-Use Path Signage & Striping Layouts
- Figure 1: Multi-Use Path Crossing at Typical Unsignalized Intersection
- Figure 2: Multi-Use Path Crossing at Typical Signalized Intersection
- Figure 3: Typical Signalized Intersection With "Raised" Right Turn Path Crossing
- Figure 4: Multi-Use Path Crossing at Typical Driveway Intersection
Multi-Use Path Signage Details
- W-SRX: Slow Raised Crosswalk Sign
- W-TWC: Two-Way Bike/Pedestrian Crossing Sign
- W-TWC: Two-Way Bike/Pedestrian Crossing With Blue Stripe Sign
- W-VX: Warning Vehicle Crossing
- W2-1: Bike Left 30-Inch Sign (Four-Way Intersections on City Roadways)
- W2-1: Bike Left 36-Inch Sign (Four-Way Intersections on State Highways)
- W2-1: Bike Right 30-Inch Sign (Four-Way Intersections on City Roadways)
- W2-1: Bike Right 36-Inch Sign (Four-Way Intersections on State Highways)
- W2-2: Bike Left 30-Inch Sign (T Intersections on City Roadways)
- W2-2: Bike Left 36-Inch Sign (T Intersections on State Highways)
- W2-2: Bike Right 30-Inch Sign (T Intersections on City Roadways)
- W2-2: Bike Right 36-Inch Sign (T Intersections on State Highways)
Parking Signage Details
- R7-1APD: No Parking Anytime (D) Sign
- R7-1APL: No Parking Any Time (L) Sign
- R7-1APR: No Parking Any Time (R) Sign
- R7-1FLD: No Parking Fire Lane (D) Sign
- R7-1FLL: No Parking Fire Lane (L) Sign
- R7-1FLR: No Parking Fire Lane (R) Sign
- R7-8FINE: Accessible Parking Fine Placard
- R7-8SUPP: Accessible Parking Supplementary Placard
Temporary Traffic Control Signage Details
- M4-9A: Bike/Pedestrian Detour Sign
- R4-11: Bikes May Use Full Lane Sign
- W-MWT: Merge With Traffic Sign
- W-PC: Path Closed Sign
- W-TWC: Two-Way Bike/Pedestrian Crossing Sign
- W9-BLCA: Bike Lane Closed Ahead Sign