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Stormwater Management Manual Design Details and CAD Support Files

Information
On this page, you will find design details and CAD support files for the construction of stormwater management facilities as specified by the 2025 Stormwater Management Manual.
On this page

Simplified Approach Typical Details (SW-100s)

All of the Simplified Approach Typical Details are available for download as PDFs or CAD (.dwg) files.

Combined SW-100 PDF and CAD Files

Separated SW-100 PDFs

SW-100 Basin Unlined 931.51 KB
SW-101 Basin Check Dam 839.1 KB
SW-102 Downspout Extension 615.23 KB
SW-103 Driveway Center Strip 602.78 KB
SW-104 Drywell 924.61 KB
SW-105 Ecoroof 934.12 KB
SW-106 Habitat Ecoroof 1.09 MB
SW-107 Filter Strip 773.66 KB
SW-108 Permeable Pavement 720.93 KB
SW-109 Planter Unlined 857.98 KB
SW-110 Planter Lined 887.01 KB
SW-111 Planter Flow Spreader 725.05 KB
SW-112 Rain Garden 958.14 KB
SW-113 Sand Filter Unlined 758.7 KB
SW-114 Sand Filter Lined 870.56 KB
SW-115 Site Configuration 505.2 KB
SW-116 Soakage Trench 1.04 MB

Separated SW-100 CAD Files

SW-100 Basin Unlined (.dwg) 1.23 MB
SW-101 Basin Check Dam (.dwg) 1.4 MB
SW-102 Downspout Extension (.dwg) 1.06 MB
SW-103 Driveway Center Strip (.dwg) 1.08 MB
SW-104 Drywell (.dwg) 1.12 MB
SW-105 Ecoroof (.dwg) 1.15 MB
SW-106 Habitat Ecoroof (.dwg) 1.34 MB
SW-107 Filter Strip (.dwg) 1.28 MB
SW-108 Permeable Pavement (.dwg) 1.07 MB
SW-109 Planter Unlined (.dwg) 1.09 MB
SW-110 Planter Lined (.dwg) 1.12 MB
SW-111 Planter Flow Spreader (.dwg) 1.26 MB
SW-112 Rain Garden (.dwg) 1.28 MB
SW-113 Sand Filter Unlined (.dwg) 1.08 MB
SW-114 Sand Filter Lined (.dwg) 1.07 MB
SW-115 Site Configuration (.dwg) 1.07 MB
SW-116 Soakage Trench (.dwg) 1.14 MB

Presumptive and Performance Approach Typical Details (SW-200s)

All of the Presumptive and Performance Approach Typical Details are available for download as PDFs or CAD (.dwg) files.

Combined SW-200 PDF and CAD Files

Separated SW-200 PDFs

SW-200 Ecoroof 929.79 KB
SW-201 Habitat Ecoroof 1.07 MB
SW-202 Permeable Pavement 625.22 KB
SW-203 Basin Unlined 817.94 KB
SW-204 Basin Unlined With Underdrain 1.03 MB
SW-205 Basin Lined 1.05 MB
SW-206 Planter Unlined 762.47 KB
SW-207 Planter Unlined With Underdrain 886.28 KB
SW-208 Planter Lined 944.34 KB
SW-209 Planter Check Dam 633.02 KB
SW-210 Drywell 929.89 KB
SW-211 Soakage Trench 1.04 MB
SW-212 Lined Facility Underdrain with Beehive Overflow 688.61 KB
SW-213 Unlined Facility Standard Underdrain With Beehive Overflow 682.79 KB
SW-214 Unlined Facility Recessed Underdrain With Beehive Overflow 678.91 KB
SW-215 Orifice Configuration Examples 656.76 KB
SW-216 Configuration Cross Sections 716.11 KB
SW-217 Facility Overflow Configuration E 573.81 KB
SW-218 Sedimentation Maintenance Hole 451.05 KB

Separated SW-200 CAD Files

SW-200 Ecoroof (.dwg) 1.3 MB
SW-201 Habitat Ecoroof (.dwg) 1.48 MB
SW-202 Permeable Pavement 1.22 MB
SW-203 Basin Unlined (.dwg) 1.38 MB
SW-204 Basin Unlined With Underdrain (.dwg) 1.49 MB
SW-205 Basin Lined (.dwg) 1.49 MB
SW-206 Planter Unlined (.dwg) 1.26 MB
SW-207 Planter Unlined With Underdrain (.dwg) 1.25 MB
SW-208 Planter Lined (.dwg) 1.25 MB
SW-209 Planter Check Dam (.dwg) 1.27 MB
SW-210 Drywell (.dwg) 1.29 MB
SW-211 Soakage Trench (.dwg) 1.31 MB
SW-212 Lined Facility Underdrain with Beehive Overflow (.dwg) 1.26 MB
SW-213 Unlined Facility Standard Underdrain With Beehive Overflow (.dwg) 1.24 MB
SW-214 Unlined Facility Recessed Underdrain With Beehive Overflow (.dwg) 1.25 MB
SW-215 Orifice Configuration Examples (.dwg) 1.34 MB
SW-216 Configuration Cross Sections (.dwg) 1.25 MB
SW-217 Facility Overflow Configuration E (.dwg) 1.29 MB
SW-218 Sedimentation Maintenance Hole (.dwg) 1.26 MB

Green Street Details (SW-300s)

All of the Green Street Details are available for download as PDFs or CAD (.dwg) files.

Combined SW-300 PDF and CAD Files

Separated SW-300 PDFs

SW-300 Sloped Basin With Parking 608.1 KB
SW-301 Planter No Parking 506.81 KB
SW-302 Planter With Parking 2.5ft Step-Out 506.81 KB
SW-303 Planter With Parking 1ft Step-Out 516.29 KB
SW-304 Curb Extension No Planting Strip 552.13 KB
SW-305 Curb Extension With Planting Strip 554.59 KB
SW-306 Facilities With Curtain Liner 505.77 KB
SW-307 Facilities With Full Liner 529.85 KB
SW-308 Carriage Walk With Trench Grate 452.26 KB
SW-309 Check Dam Infiltration Facility 400.55 KB
SW-310 Check Dam Infiltration Facility With Rock 433.95 KB
SW-311 Check Dam Partial Infiltration With Weepholes 415.59 KB
SW-312 Check Dam Lined Facility With Weepholes 421.49 KB
SW-313 Facility Configuration Sections 502.12 KB
SW-314 Overflow Configuration Lined Facilities Beehive Overflow Structure 426.87 KB
SW-315 Overflow Configuration Partial Infiltration Facilities Beehive Overflow Structure 409.23 KB
SW-316 Overflow Configuration Lined Facilities CG-3 Overflow Structure 449.27 KB
SW-317 Overflow Configuration Partial Infiltration Facilities CG-3 Overflow Structure 437.6 KB
SW-318 Underdrain with Cleanout Configuration 375.95 KB
SW-319 Street Trees In Facility No Rock Storage 496.1 KB
SW-320 Street Trees In Facility With Rock Storage 515.57 KB
SW-321 Plant Spacing For Herbaceous Plants Groundcovers And Shrubs 363.71 KB
SW-322 Swales Landscape Planting Templates 404.44 KB
SW-323 Planters Landscape Planting Templates 372.55 KB
SW-324 Curb Extensions Landscape Planting Templates 508.86 KB

Separated SW-300 CAD Files

SW-300 Sloped Basin With Parking (.dwg) 1.34 MB
SW-301 Planter No Parking (.dwg) 1.34 MB
SW-302 Planter With Parking 2.5ft Step-Out (.dwg) 1.37 MB
SW-303 Planter With Parking 1ft Step-Out (.dwg) 1.36 MB
SW-304 Curb Extension No Planting Strip (.dwg) 1.37 MB
SW-305 Curb Extension With Planting Strip (.dwg) 1.38 MB
SW-306 Facilities With Curtain Liner (.dwg) 1.34 MB
SW-307 Facilities With Full Liner (.dwg) 1.38 MB
SW-308 Carriage Walk With Trench Grate (.dwg) 1.36 MB
SW-309 Check Dam Infiltration Facility (.dwg) 1.34 MB
SW-310 Check Dam Infiltration Facility With Rock (.dwg) 1.35 MB
SW-311 Check Dam Partial Infiltration With Weepholes (.dwg) 1.38 MB
SW-312 Check Dam Lined Facility With Weepholes (.dwg) 1.34 MB
SW-313 Facility Configuration Sections (.dwg) 1.34 MB
SW-314 Overflow Configuration Lined Facilities Beehive Overflow Structure (.dwg) 1.37 MB
SW-315 Overflow Configuration Partial Infiltration Facilities Beehive Overflow Structure (.dwg) 1.32 MB
SW-316 Overflow Configuration Lined Facilities CG-3 Overflow Structure (.dwg) 1.36 MB
SW-317 Overflow Configuration Partial Infiltration Facilities CG-3 Overflow Structure (.dwg) 1.38 MB
SW-318 Underdrain with Cleanout Configuration (.dwg) 1.31 MB
SW-319 Street Trees In Facility No Rock Storage (.dwg) 1.37 MB
SW-320 Street Trees In Facility With Rock Storage (.dwg) 1.38 MB
SW-321 Plant Spacing For Herbaceous Plants Groundcovers And Shrubs (.dwg) 1.29 MB
SW-322 Swales Landscape Planting Templates (.dwg) 1.32 MB
SW-323 Planters Landscape Planting Templates (.dwg) 1.3 MB
SW-324 Curb Extensions Landscape Planting Templates (.dwg) 1.3 MB

Contact

Manuals, Code and Rule Team

Environmental Services
bescoderule@portlandoregon.gov

Systems Development

Environmental Services
phone number503-823-7761Questions about sewer connections, stormwater management, and drainage reserves at the land use or building permit stage.

Related

2025 Stormwater Management Manual

Topics

Construction and development
Environment
Water, stormwater, and sewer

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