Legend (Environmental/EnvironmentalMapping)

Drainage Inlet (2) Catch Basin Manhole Concrete Inlet Drop Inlet Grate Inlet Other Unknown Discharge Point (3) Incoming To WSDOT's Property Leaving WSDOT's System WSDOT Property Land Surface WSDOT Property Subsurface WSDOT Property Surface Water Debris Rack (5) Energy Dissipator (6) Flow Restrictor (7) Linear Drain (8) Artificial Path (9) Ditch (10) Stormwater Conveyance Ditch Concrete Barrier (11) Curb (12) Culverts (13) Culvert Pipe Non-Culvert Pipes (14) Storm Sewer Pipe Underdrain Pipe Drain Pipe Unknown Sanitary Sewer Pipe Stormwater Pond Point (16) Stormwater Vault (17) Drywell (18) Ditch Type (19) Biofiltration Swale CABS BioInfiltration Swale Continuous Inflow Biofiltration Swale Wet Biofiltration Swale Bioretention Area Infiltration Trench Linear Sand Filter Other Add Note Roadside Slope Type (20) Vegetated Filter Strip CAVFS Engineered Dispersion Natural Dispersion Media Filter Drain Bioretention Area Permeable Pavement Surfaces Other Add Note Stormwater Pond (21) Roadside Slope Type (22) Drainage Inlet (24) Catch Basin Manhole Concrete Inlet Drop Inlet Grate Inlet Other Unknown Artificial Discharge Point (25) Cabinet (26) Debris Rack (27) Energy Dissipator (28) Flow Restrictor (29) Linear Drain (30) Artificial Path (31) Ditch (32) Stormwater Conveyance Ditch Concrete Barrier (33) Curb (34) Culverts (35) Culvert Pipe Non-Culvert Pipes (36) Storm Sewer Pipe Underdrain Pipe Drain Pipe Unknown Sanitary Sewer Pipe Historic Bridges (38) National Register Points (39) National Register Lines (40) Sensitive Roadside Areas - Cultural Resources (41) Historic Districts (42) National Register Polygons (43) Confirmed or Suspected Contaminated Sites (45) New Zealand Mud Snail Locations (46) New Zealand Mud Snail Maintenance Areas (47) WSDOT Fish Passage Inventory (49) Yes No Unknown No fish use Fish Distribution, WDFW (50) River Mile Benchmarks USGS (52) Navigable Waterways, USACE (53) SSHIAP Stream Gradient (% slope) - WDFW (54) No data for % slope Less than 1% slope (0 <= G <= 1) 1.1 to 2% slope (1 < G <= 2) 2.1 to 4% slope (2 < G <= 4) 4.1 to 8% slope (4 < G <=8) 8.1 to 12% slope (8 < G <= 12) 12.1 to 20% slope (12 < G <= 20) Greater than 20% slope (20 < G) Shoreline Management Act - Streams Adopted (55) Shoreline Shoreline of Statewide Significance Shoreline Management Act - Lakes Adopted (56) Shoreline Management Act - Marine Waters (57) 303(d) Category 5 Impaired Waters (121) TMDL Boundaries (80) Approved In Development Municipal Stormwater Permit Areas (59) phase 1, city phase 1, county phase 2, city phase 2, county not applicable, city HQ Annual Reporting TMDLs (122) Bear Evans Watershed Bacteria TMDL Bear Evans Watershed Temperature and DO TMDL Clarks Creek Watershed DO and Fine Sediment TMDL Deschutes, Percival and Budd Inlet Watersheds TMDL Green River Temperature Watershed TMDL Hangman Creek Watershed Multiparameter TMDL Henderson Inlet Watershed Multiparameter TMDL Issaquah Creek Basin Bacteria TMDL Liberty Bay Watershed Bacteria TMDL Little Bear Creek Bacteria TMDL Newaukum Creek Temperature TMDL Nisqually Watershed Bacteria and DO TMDL North Fork Palouse River DO and pH TMDL Oakland Bay, Hammersly Inlet Tribs Bacteria TMDL Palouse River Watershed Bacteria TMDL Puyallup River Bacteria TMDL Salmon Creek Watershed Temperature TMDL Samish Bay Watershed Bacteria TMDL Sinclair and Dyes Inlets Tributaries Bacteria TMDL Snoqualmie River Watershed Temperature TMDL South Fork Palouse River Watershed Bacteria TMDL South Prairie Creek Bacteria and Temperature TMDL Spokane River Dissolved Oxygen TMDL Stillaguamish River Watershed Multiparameter TMDL Stillaguamish River Watershed Temperature TMDL Swamp Creek Bacteria TMDL Teanaway River Temperature TMDL Totten, Eld, and Skookum Inlets Tributaries TMDL Tucannon River Watershed Temperature TMDL Upper Naches Watershed Temperature TMDL Upper Yakima River Watershed DDT and TSS TMDL Walla Walla River Watershed Bacteria TMDL Walla Walla River Watershed MultiparameterTMDL Walla Walla River Watershed Temperature TMDL Walla Walla River Watershed Toxics TMDL Whatcom, Squalicum, and Padden Creek TMDL Current (125) WSDOT Wetland Mitigation Bank Sites (Points) (67) Wetland Mitigation Sites (Points) (68) Closed Fed/State Permits Active Monitoring Closeout Requested Closeout in Progress Re-Mitigated Remediation Environmental Mitigation Sites (69) Wetlands (NWI) (70) Freshwater Forested/Shrub Wetland (PFO, PSS) Freshwater Emergent Wetland (PEM) Estuarine and Marine Wetland (E2, M2) Estuarine and Marine Deepwater (E1, M1) Freshwater Pond (PUB, PAB) Lake (Lacustrine) Riverine Other (Palustrine) Chronic Environmental Deficiency (CED) (72) Active Resolved Stable WSDOT Bridge Inventory - Under Locations (73) WSDOT Bridge Inventory - On Locations (74) Bridge, Increasing Bridge, Decreasing Bridge, Both Scenic Highways (75) Aquatic Sensitive Areas, High & Medium Priority Scores (76) Resource Conservation Areas (77) Water Resources Inventory Areas (WRIA) (78) Chehalis Confederated Tribes (83) Chehalis Confederated Tribes Coeur d'Alene Tribe (84) Coeur d'Alene Tribe Confederated Tribes of Grand Ronde (85) Confederated Tribes of Grand Ronde Confederated Tribes of the Colville Reservation (86) Confederated Tribes of the Colville Reservation Confederated Tribes of the Umatilla Indian Reservation (87) Confederated Tribes of the Umatilla Indian Reservation Confederated Tribes of the Warm Springs Reservation (88) Confederated Tribes of the Warm Springs Reservation Cowlitz Tribe (89) Cowlitz Tribe Hoh River Tribe (90) Hoh River Tribe Jamestown S'Klallam Tribe (91) Jamestown S'Klallam Tribe Kalispel Tribe (92) Kalispel Tribe Lower Elwha Klallam Tribe (93) Lower Elwha Klallam Tribe Lummi Nation (94) Lummi Nation Makah Tribe (95) Makah Tribe Muckleshoot Tribe (96) Muckleshoot Tribe Nez Perce Tribe (97) Nez Perce Tribe Nisqually Tribe (98) Nisqually Tribe Nooksack Indian Tribe (99) Nooksack Indian Tribe Port Gamble S'Klallam Tribe (100) Port Gamble S'Klallam Tribe Puyallup Tribe (101) Puyallup Tribe Quileute Tribe (102) Quileute Tribe Quinault Nation (103) Quinault Nation Samish Nation (104) Samish Nation Sauk-Suiattle Tribe (105) Sauk-Suiattle Tribe Shoalwater Bay Tribe (106) Shoalwater Bay Tribe Skokomish Tribe (107) Skokomish Tribe Snoqualmie Nation (108) Snoqualmie Nation Spokane Tribe (109) Spokane Tribe Squaxin Island Tribe (110) Squaxin Island Tribe Stillaguamish Tribe (111) Stillaguamish Tribe Suquamish Tribe (112) Suquamish Tribe Swinomish Tribal Community (113) Swinomish Tribal Community Tulalip Tribes (114) Tulalip Tribes Upper Skagit Tribe (115) Upper Skagit Tribe Yakama Nation (116) Yakama Nation