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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.

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 Unlined931.51 KB
SW-101 Basin Check Dam839.1 KB
SW-102 Downspout Extension615.23 KB
SW-103 Driveway Center Strip602.78 KB
SW-104 Drywell924.61 KB
SW-105 Ecoroof934.12 KB
SW-106 Habitat Ecoroof1.09 MB
SW-107 Filter Strip773.66 KB
SW-108 Permeable Pavement720.93 KB
SW-109 Planter Unlined857.98 KB
SW-110 Planter Lined887.01 KB
SW-111 Planter Flow Spreader725.05 KB
SW-112 Rain Garden958.14 KB
SW-113 Sand Filter Unlined758.7 KB
SW-114 Sand Filter Lined870.56 KB
SW-115 Site Configuration505.2 KB
SW-116 Soakage Trench1.04 MB

Separated SW-100 CAD Files

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 Ecoroof929.79 KB
SW-201 Habitat Ecoroof1.07 MB
SW-202 Permeable Pavement625.22 KB
SW-203 Basin Unlined817.94 KB
SW-204 Basin Unlined With Underdrain1.03 MB
SW-205 Basin Lined1.05 MB
SW-206 Planter Unlined762.47 KB
SW-207 Planter Unlined With Underdrain886.28 KB
SW-208 Planter Lined944.34 KB
SW-209 Planter Check Dam633.02 KB
SW-210 Drywell929.89 KB
SW-211 Soakage Trench1.04 MB
SW-212 Lined Facility Underdrain with Beehive Overflow688.61 KB
SW-213 Unlined Facility Standard Underdrain With Beehive Overflow682.79 KB
SW-214 Unlined Facility Recessed Underdrain With Beehive Overflow678.91 KB
SW-215 Orifice Configuration Examples656.76 KB
SW-216 Configuration Cross Sections716.11 KB
SW-217 Facility Overflow Configuration E573.81 KB
SW-218 Sedimentation Maintenance Hole451.05 KB

Separated SW-200 CAD Files

SW-200 Ecoroof (.dwg)1.3 MB
SW-201 Habitat Ecoroof (.dwg)1.48 MB
SW-202 Permeable Pavement1.22 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 Parking608.1 KB
SW-301 Planter No Parking506.81 KB
SW-302 Planter With Parking 2.5ft Step-Out506.81 KB
SW-303 Planter With Parking 1ft Step-Out516.29 KB
SW-304 Curb Extension No Planting Strip552.13 KB
SW-305 Curb Extension With Planting Strip554.59 KB
SW-306 Facilities With Curtain Liner505.77 KB
SW-307 Facilities With Full Liner529.85 KB
SW-308 Carriage Walk With Trench Grate452.26 KB
SW-309 Check Dam Infiltration Facility400.55 KB
SW-310 Check Dam Infiltration Facility With Rock433.95 KB
SW-311 Check Dam Partial Infiltration With Weepholes415.59 KB
SW-312 Check Dam Lined Facility With Weepholes421.49 KB
SW-313 Facility Configuration Sections502.12 KB
SW-314 Overflow Configuration Lined Facilities Beehive Overflow Structure426.87 KB
SW-315 Overflow Configuration Partial Infiltration Facilities Beehive Overflow Structure409.23 KB
SW-316 Overflow Configuration Lined Facilities CG-3 Overflow Structure449.27 KB
SW-317 Overflow Configuration Partial Infiltration Facilities CG-3 Overflow Structure437.6 KB
SW-318 Underdrain with Cleanout Configuration375.95 KB
SW-319 Street Trees In Facility No Rock Storage496.1 KB
SW-320 Street Trees In Facility With Rock Storage515.57 KB
SW-321 Plant Spacing For Herbaceous Plants Groundcovers And Shrubs363.71 KB
SW-322 Swales Landscape Planting Templates404.44 KB
SW-323 Planters Landscape Planting Templates372.55 KB
SW-324 Curb Extensions Landscape Planting Templates508.86 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
503-823-7761Questions 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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