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Wetland Monitoring Reports

2015 Reports

2014 Reports

Eastern Region

Eastern Region

North Central Region

North Central Region

Northwest Region

Northwest Region

Olympic Region

Olympic Region

South Central Region

South Central Region

Southwest Region

Southwest Region

Monitoring reports for 2014 and 2015 are organized by WSDOT region and county. The WSDOT Regions Map (pdf 932 kb) shows WSDOT regions and counties.

Five types of reports are included on this web page:

  • Wetland Monitoring Reports are full length reports discussing the development of individual wetland mitigation sites for federal, state and local permit compliance. Wetland monitoring reports are written for the years specified by these permits using quantitative data.
  • Stream Monitoring Reports are similar to wetland reports, but discuss stream mitigation sites.
  • Mitigation Bank Monitoring Reports are full length reports discussing the development of mitigation banks for compliance with the Mitigation Bank Instrument (MBI). Bank monitoring reports are written for the years specified in the MBI using quantitative data.
  • Letter Reports- Short reports when a full length report is not required.
  • Hydraulic Project Approval (HPA) Monitoring Reports are letter-format reports for compliance with HPA permits from the Washington State Department of Fish and Wildlife.   

2015 Reports

2015 monitoring report information is listed in the following order: Project name, US Army Corps of Engineers or other permit number, (link to the report) and (pdf byte size).

Eastern Region

Whitman County
SR 27 Pine Creek Bridge Replacement 2009-594 (Pine Creek) pdf 2.2 mb)

SR 270 Pullman to Idaho State Line 2005-00225 (Jorstad) (pdf 901 kb)

SR 270 Pullman to Idaho State Line 2005-00225 (Patterson) (pdf 2 mb)

SR 270 Pullman to Idaho State Line 2005-00225 (Sunshine Rd) (pdf 1.4 mb)

North Central Region

Chelan County
US 2 Tumwater Canyon Bridge Replacement NWS-2010-1255 (Tumwater Canyon) (pdf 1.3 mb)

Grant County
Moses Lake Wetland Mitigation Bank (Moses Lake) (pdf 437 kb)

Northwest Region

King County
Springbrook Creek Wetland and Habitat Mitigation Bank Unit A and B (Springbrook Units A & B) (pdf 5.44 mb)

Springbrook Creek Wetland and Habitat Mitigation Bank Unit C (Springbrook Unit C) (pdf 722 kb)

Springbrook Creek Wetland and Habitat Mitigation Bank Unit D (Springbrook Unit D) (pdf 515 kb)

Springbrook Creek Wetland and Habitat Mitigation Bank Unit E (Springbrook Unit E) (pdf 2.44 mb)

I-5 – SR161/SR 18 Triangle Improvements Project – Stream Mitigation Sites USACE NWP (23) 2009-181 (Corrington Stream Realignment) (pdf 1.8 mb)

I-5 – SR161/SR 18 Triangle Improvements Project - 2009-181 (Corrington) (pdf 1.4 mb)

SR 18 Maple Valley to Issaquah-Hobart Road - 2002-00594 (7 HPA Reports) (pdf 3.64 mb)

SR18 Maple Valley to Issaquah-Hobart Road - 2002-00594 (Cedar River Tributary SE 216th Place Stream Realignment) (pdf 1.91 mb)

SR 202 Improvement Project: SR 520 to Sahalee Way NE - 2004-00024 (Turple) (pdf 3.7 mb)

I-405 NE 6th St to I-5 Widening and Express Toll Lanes - NWS-2007-1711 (Sammamish River, Stream C 28, Yarrow Creek) (pdf 1.5 mb)

I-405, SE 8th to I-90 (South Bellevue) Project - 2005-01405 (Median Stream) (pdf 1.42 mb)

I-405 SR 520 to SR 522 Stage 1 (Kirkland Stage 1) - LSM05-00017 (Thrashers Corner) - (pdf 730kb)

I-405 SR 520 to SR 522 Stage 1 (Kirkland Stage 1) - 2004-01410 (Forbes Lake East) (pdf 1.1 mb)

I-405 SR 520 to SR 522 Stage 1 (Kirkland Stage 1) - 2004-01410 (Forbes Lake West) (pdf 260 Kb)

I-405 Thunder Hills Creek Mitigation Fish Barrier Retrofit - 2008-87 (Panther Creek) (pdf 1.51 mb)

SR 520 I-5 to Medina Bridge Replacement and HOV Project - NWS-2011-376 (South Lake Washington) (pdf 1.2 mb)

SR 520 Medina to SR 202 - Eastside Transit and HOV - NWS-2009-562 (Yarrow Creek Stream) (pdf 3.2 mb) 

SR 520 West Lake Sammamish Parkway to SR 202 Widening Stream Buffer - 2007-1926 (Bear Creek 3) (pdf 2.13 mb)

SR 900 78th Vicinity to Newport Way Widening Lake Sammamish State Park Wetland Mitigation Site and Tributary B Stream - 2007-29 (LSSP & Trib B) (pdf 3.9 mb)

Snohomish County
I-5 Everett HOV, SR 526 to SR 2 Vicinity 2004-01448 (Everett HOV) - (pdf 1.3 mb)

SR 9 176th St SE to Marsh Rd Vicinity Safety Improvements MP 4.2 to MP 8.88 - NWS-2007-471 (Marsh Road) (pdf 2.1 mb)

SR 9 212th St SE to 176th St SE Widening Stage 3 (MP 1.62 to 4.22) - NWS-2010-1228 (Charles E. Plummer Stream) (pdf 1.4 mb)

SR 9 212th St SE to 176th St SE Widening Stage 3 (MP 1.62 to 4.22) - NWS-2010-1228 (Charles E. Plummer) (pdf 1.6 mb)

SR 9 Pilchuck Creek Replace Bridge MP 34.4 to 35.2 - NWS-2011-299 (Pilchuck Buffer) (pdf 2 mb)

SR 530 Skaglund Hill Slide MP 36.53 –MP 36.57 NWS-2006-82 (Skaglund) - (pdf 4.6 mb)

SR 530 Skaglund Hill Slide - Permanent Repair, NWS-2010-773, SR 532 Corridor Improvements – Design-Build - East (MP 3.27 to I-5), NWS-2008-1082, SR 532 Corridor Improvements - Design-Build - West (MP 0.00 to 3.27), NWS-2008-1081 (Pilchuck Creek) (pdf 3.5 mb)

SR 532 Corridor Improvements - Design-Build - West (MP 0.00 to 3.27) - NWS-2008-1081 (Estuarine and Stream 8E) (pdf 2.7 mb)

SR 532 North Leque Island Slope Protection MP 2.96 to MP 3.27 - NWS-2010-968-1 (Leque Island) (pdf 1.9 mb)

Whatcom County
SR 539 Horton Road to Ten Mile Road, 2005-00927, SR 539 Ten Mile Road to SR 546 (Badger Road), NWS-2007-470, SR 542 CED E Church Mtn Road, NWS-2009-786, SR 542 Everson Goshen Rd Vic to SR 9 Vic, NWS-2010-938, SR 546 Depot Rd and Bender Rd Roundabouts, NWS-2012-575 (Potter Road) (pdf 470 kb)

Olympic Region

Clallam County
SR 101 Jimmycomelately Estuary, 2005-00512, SR 101 Blyn Vicinity Passing Lanes, NWS-2007-2102 (Jimmycomelately) (pdf 3.1 mb)

Grays Harbor County
SR 520 Pontoon Construction - NWS-2008-151 (Grass Creek) (pdf 3.2 mb)

Mason County
SR 3 Crestview Drive Road Improvement Project and Deer Creek Vicinity Traffic Channelization Project - 2002-01304 (Crestview) (pdf 620 kb)

SR 101 Purdy Creek Bridge Replacement - NWS-2007-1812 (Purdy Bourgault Rd) (pdf 2.4 mb) 

US 101 Purdy Canyon Vicinity Slide Slope Stabilization - NWS-2012-514 (Purdy Canyon Slide) (pdf 1.4 mb)

Pierce County
I-5 Spring Valley Restoration - 2006-00839 (Spring Valley) (pdf 3.6 mb)

I-5 M Street to Portland Avenue HOV, I-5 Portland Avenue to Port of Tacoma Road - NB HOV and Bridge, NWS-2011-061, I-5 Portland Avenue to Port of Tacoma Road - SW Outfall, NWS-2010-0278, I-5 Tacoma HOV Mitigation - Clear Creek Riverside Construction, NWS-2009-753 (Clear Creek Riverside) (pdf 3.6 mb)

SR 16 West Bound Nalley Valley HOV project - NWS-2008-358 (Tacoma Nature Center) (pdf 4 mb)

SR 161 24th Street E to Milton Way - NWS-2009-1404 (Walker Pond) (pdf 1.6 mb)

SR 161 234th Street to 176th Street East - DE-03SEAHQ-5832 (Graham Hill) (pdf 3.5 mb)

SR 167 North Sumner Interchange - 1998-4-00422 (North Sumner) (pdf 4 mb)

SR 410 214th Avenue East to 234th Avenue East Widening - NWS-2009-280 (Fennel Creek 2) (pdf 4.2 mb)

Thurston County

I-5 Scatter Creek to Maytown Safety Rest Area - NWS-2007-284 (Scatter Creek) (pdf 5 mb)

South Central Region

Benton County
SR 240 I-182 to Columbia Center Interchange - 2004-00043 (Columbia Causeway) (pdf 2.8 mb)

SR 240 Yakima River Bridge Replacement - 2002-4-00799 (Yakima River Bridge 2) (pdf 3.7 mb)

Walla Walla County
US 12 Frenchtown Vicinity to Walla Walla - Add Lanes - NWS-2007-1612-1, NWS-2007-1612-2- 2007-1612 (Reser Creek) (pdf 2 mb)

Yakima County
US 12 Tieton River Crossings W and E - Replace Bridges - NWS-2008-80 (Tieton River Bridges) (pdf 1.2 mb)

SR 410 Nile Valley Landslide - Reconstruct Highway & Manage Env Mitigation - NWS-2010-511 (Nile Slide) (pdf 2.2 mb)

Southwest Region

Clark County
I-5 I-205 NE 134th Street IC, NWS-2010-185, SR 502 NE 15th Ave to NE 102nd Ave, NWS-2009-1093 (Cedars Wetland) (pdf 2.3 mb)

I-5 SR 501 Ridgefield Interchange - NWS-2008-1303 (McCormick Creek) (pdf 1.2 mb)

Cowlitz County
I-5 SR 432 Talley Way Interchange - NWS-2009-444 (Carrols Creek) (pdf 2.4 mb)

Klickitat County
US 97 North of Goldendale Wildlife Habitat Connectivity/Fish Passage at Butler Creek - NWS-2011-944 (Butler Creek) (pdf 1.5 mb)

SR 142 Glenwood Road Vic Box Culvert Replacement - NWS-2012-1333 (Glenwood Culvert) (pdf 1.6 mb)

Lewis County
I-5 Blakeslee Junction to Grand Mound Interchange (Thurston Co) - NWS-2008-744 (Blakeslee to Grand Mound Roadside) (pdf 1.5 mb)

North Fork Newaukum Mitigation Bank - 2001-4-00182 (North Fork Newaukum) (pdf 1.6 mb)

Pacific County
US 101 Bone River Bridge Replacement MP 45.08 to MP 45.32 - NWS-2009-01152 (Bone River Bridge) (pdf 1.6 mb)

US 101 Middle Nemah River Bridge Replacement MP 33.70 to MP 33.99 - NWS-2012-134 (Middle Nemah River Bridge) (pdf 1.6 mb)

Skamania County
SR 14 Cape Horn Bridge to Cape Horn Rd Vicinity (MP 25.50 to 26.50) - NWS-2009-1257 (St Cloud) (pdf 2.9 mb)

SR 14 Marble Road to Belle Center Safety Improvements - NWS-2011-544 (Marble Road NSA) (pdf 1.2 mb)

SR 14 Marble Road to Belle Center Safety Improvements - NWS-2011-544 (Homestead Lake) (pdf 1.9 mb)

SR 14 Marble Road to Belle Center Safety Improvements - NWS-2011-544 (Cleveland Oak) (pdf 1.9 mb)

Thurston County
I-5 Blakeslee to Grand Mound - NWS-2008-744 (TDA 11) (pdf 1.5 mb)

I-5 Blakeslee to Grand Mound - NWS-2008-744 (TDA 12) (pdf 1.5 mb)

I-5 Blakeslee to Grand Mound - NWS-2008-744 (TDA 13) (pdf 2.1 mb)  


2014 Reports

2014 monitoring report information is listed in the following order: Project name, US Army Corps of Engineers or other permit number and (link to the report and pdf byte size). 

Eastern Region

Spokane County
US 395 NSC - US 2 Lowering - Deadman Creek Fish Passage Culvert, NWS-2008-336 (Deadman Creek) (pdf 1.3 mb) 

North Central Region

Chelan County
US 2 Winton Road, 2003-01285 (Winton Rd) (pdf 3.2 mb)

Grant County
Moses Lake Wetland Mitigation Bank (Moses Lake Bank) (pdf 620 kb)

Northwest Region

King County
Springbrook Creek Wetland and Habitat Mitigation Bank, 2006-00100 (Springbrook Bank Units A/B ) (pdf 3 mb)

Springbrook Creek Wetland and Habitat Mitigation Bank, 2006-00100 Springbrook Bank Unit C) (pdf 5.5 mb)

Springbrook Creek Wetland and Habitat Mitigation Bank, 2006-00100 Springbrook Bank Unit D) (pdf 620 kb)

Springbrook Creek Wetland and Habitat Mitigation Bank, 2006-00100 (Springbrook Bank Unit E) (pdf 890 kb)

SR 18 Maple Valley to Issaquah-Hobart Road (MP 16.6 to MP 19.3), 2002-00594 (Cedar River Tributary SE 216th Place Stream Realignment) (pdf 1.7 mb)

SR 167 15th Street SW to 15th Street Stage 3, 2004-01241 (Mill Creek Stage 3) (pdf 836 kb)

SR 202: SR 520 to Sahalee Way NE, 2004-00024, SR 202 Junction with 244th Ave NE Signalization and Channelization & Temporary Signal, NWS-2005-1158, SR 520: West Lake Sammamish Parkway to SR 202 Widening (MP11.40 to 12.83), NWS-2007-1926 (Happy Valley) (pdf 4 mb)

I-405 SR 520 to SR 522 Stage 1 (Kirkland Stage 1), 2004-01410 (Forbes Lake East) (pdf 1.9 mb)

I-405 SR 520 to SR 522 Stage 1 (Kirkland Stage 1), 2004-01410 (Forbes Lake West) (pdf 1.9 mb)

I-405 SE 8th to I-90, 2005-01405, 112th Ave SE to I-90 Project, NWP (14) 2006-00524, NE 195th St to SR 527 - Northbound Auxiliary Lane, NWP (14) NWS-2009-00396, Bellevue to Lynwood Improvement Project, NWP (14)  NWS-2007-1711, (Kelsey Creek) (pdf 1.3 mb)

I-405 Congestion Relief and Bus Rapid Transit Projects: Renton Nickel Improvement Project, 2006-00097 (Renton Stage 1) (pdf 2 mb)

I-405 NE 8th St to SR 520 Braided Ramps, NWS-2008-504 (Sturtevant Creek) (pdf 970 kb)

I-405 SR 520 to SR 522 Stage 1 (Kirkland Stage 1), 2004-01410 (Thrashers Corner) (pdf 750 kb)

I-405 NE 6th St. to I-5 Widening and Express Toll Lanes, NWS-2007-1711 (Yarrow Creek Farms, C28, and Sammamish River Mitigation Sites) (pdf 4.5 mb)

SR 509 I-5 Freight and Congestion Relief Project, 2005-00979 (AMB Property) (pdf 580 kb)

SR 515 I-405 Interchange Project, NWS-2007-1788 (Thunder Hills Creek Tributary) (pdf 2.7 mb)

SR 518 SeaTac Airport to I-5/I-405 Interchange, NWS-2006-00651 (Gilliam Creek) (pdf 2.7 mb)

SR 520 Medina to SR 202 - Eastside Transit and HOV, NWS-2009-562 (Evans Creek) (pdf 2.5 mb)

SR 900 Newport Way to I-90 Widening, 2002-00179 (Newport Way) (pdf 3.6 mb)

Skagit County
SR 9 Martin Rd Vic to Thunder Creek, WADOE AO # 6581, SR 20: Quiet Cove to SR 20 Spur Stage 1, 200601135, SR 11 Chuckanut Park and Ride, NWS-2008-460 (Fidalgo Bay - Quiet Cove) (pdf 3.4 mb)

SR 20 North Campbell Lake Road Realignment and Widening, 95-4-01634 (Campbell Lake Road) (pdf 2.4 mb)

SR 20 Fredonia to SR 5 - Stage 1, NWS-2005-1406, Mt. Vernon Rail Siding Upgrade Project, NWS-2007-236 (Gages Slough) (pdf 3.2 mb)

Snohomish County
SR 9 SR 2 Interchange Modifications, 2003-01338, SR 9 -56th St. SE Vicinity and 42nd St. NE Vicinity Signalization and Channelization, 2004-00772, SR 9 Lake Stevens Weigh Station Additional Parking, 2004-01475 (Pilchuck River) (pdf 2.7 mb)

SR 522 Snohomish River Bridge to US 2, NWS-2010-31 (Al Borlin Park and French Creek Tributary) (pdf 1.8 mb)

SR 522 Paradise Lake Rd to Snohomish River Stage 2 and Stage 4 Fales Road Interchange, 2002-01342 (Paradise Lake Road NE) (pdf 4.3 mb)

SR 527 132nd St. SE to 112th St. SE, 2002-00046 (Widening, Shoreline Enhancement and Floodplain Wetland Site) (pdf 440 kb)

SR 532 North Leque Island Slope Protection MP 2.96 to MP 3.27, NWS-2010-968 (Leque Island) (pdf 590 kb)

SR 532 I-5 Interchange Improvements, 2005-00845 (Stanwood) (pdf 2.1 mb)

Whatcom County
I-5 Blaine Vicinity Ramps, 1999-4-106 (H Street Pit) (pdf 2.4 mb)
 
SR 539 Ten Mile Road to SR 546 Badger Rd, NWS-2007-470, SR 542 CED E Church Mountain Rd, NWS-2009-786, SR 539 Widening Horton to Ten Mile, 200500927, SR 542 Everson Goshen Rd Vic. to SR 9 Vic., NWS-2010-938, SR 546 Depot Rd and Bender, NWS-2012-575 (Potter Road) (pdf 3 mb)

SR 539 Horton Road to Ten Mile Road, 2005-00927 (Strand) (pdf 2.1 mb)

SR 539 Ten Mile Road to SR 546 (Badger Road), NWS-2007-470 (Wiser Lake) (pdf 1.2 mb)

Olympic Region


Grays Harbor County
SR 520 Pontoon Construction, NWS-2008-151 (Grass Creek) (pdf 1.3 mb)

Kitsap County
SR 305 Vicinity Poulsbo South City Limits to Bond Road, 2005-00967 (Poulsbo Stream Realignment and Wall 8) (pdf 1.6 mb)

SR 305 Vicinity Poulsbo South City Limits to Bond Road, 2005-00967 (Poulsbo Wetland and Wall 10) (pdf 2.1 mb)

Pierce County
I-5 Port of Tacoma Rd to King County Line, NWS-2008-1445 (HOV Stream Buffer) (pdf 1.9 mb)

SR 167 North Sumner Interchange, 1998-4-00422 (North Sumner) (pdf 2.8 mb)

South Central Region

Benton County
SR 240 Yakima River Bridge Replacement, 2002-4-00799 (Yakima River Bridge 2) (pdf 850 kb)

Walla Walla County

US 12 SR 124 to Wallula Junction, 2001-4-00973 (McNary) (pdf 2.2 mb)

US 12 Frenchtown Vicinity to Walla Walla, NWS-2007-1612 (Reser Creek) (pdf 740 kb)

Yakima County
I-82 Valley Mall Blvd Interchange, NWS-2009-121 (Valley Mall) (pdf 1.8 mb) 

Southwest Region

Clark County
I-5 Main St to I-205, NWP (26) 93-4-00614, I-5 Burnt Bridge Creek to NE 78th St, NWP (26) 1999-4-169, I-5 Salmon Creek to I-205,  NWP (14) 2001-4-01406, (Burnt Bridge Mitigation Site) (pdf 2.2 mb)

SR 500 St Johns Blvd Interchange, NWS-2009-1104 (Arnold Park) (pdf 900 kb)

SR 500 I-205 Interchange Improvements, NWS-2007-806 (Burnt Bridge East) (pdf 2.3 mb)

SR 500 St Johns Blvd Interchange, NWS-2009-1104 (Lower Burnt Bridge) (pdf 1.8 mb)

SR 500 Thurston Way Interchange, 2000-4-01392 (Thurston Way) (pdf 2.2 mb)

SR 501 Emergency Slope Repair MP 18.14, NWS-2013-087, City of Ridgefield Type II Critical Areas Permit #PLZ-13-0040, (Slide 2) (pdf 250 kb)

I-5 SR 501 Ridgefield Interchange, NWS-2008-1303 (McCormick Creek) (pdf 890 kb)

SR 502 I-5 Interchange, 2005-01249 (Johnson Farm and Gee Creek Riparian Area) (pdf 4.5 mb)

SR 502 NE 15th Ave to NE 102nd Ave, NWS-2009-1093 (Mill Creek Complex South) (pdf 1.5 mb)

SR 502 NE 15th Ave to NE 102nd Ave, NWS-2009-1093 (Mill Creek North) (pdf 2.2 mb)

SR 502 NE 15th Ave to NE 102nd Ave, NWS-2009-1093 (Sunset Oaks) (pdf 970 kb)

SR 503 Lewisville Park Vicinity Climbing Lane, NWS-2008-704 (Climbing Lane) (pdf 1.2 mb)

Cowlitz County
I-5 SR 432 Talley Way Interchange, NWS-2009-444 (Carrolls Creek) (pdf 720 kb)

I-5 SR 432 Talley Way Interchange, NWS-2009-444 (Sandy Bend) (pdf 1.6 mb)

Lewis County
North Fork Newaukum Mitigation Bank, (North Fork Newaukum) (pdf 1.5 mb)

SR 6 South Fork Chehalis River Bridge Replacement, NWS-2007-1966
 (Chehalis River Bridge) (pdf 1.5 mb)

SR 12 Peters Road Vicinity Slide Repair, 94-4-02046, 96-4-01135 & 98-4-01341 (Peters Road) (pdf 1.4 mb)

Pacific County
Tarlatt Slough Mitigation Site, NWS-2009-048 (Tarlatt Slough) (pdf 1.4 mb) 

Thurston County
I-5 Blakeslee Junction to Grand Mound Interchange, NWS-2008-744 (TDA 11)(pdf 830 kb)

I-5 Blakeslee Junction to Grand Mound Interchange, NWS-2008-744 (TDA 12) (pdf 200 kb)

I-5 Blakeslee Junction to Grand Mound Interchange, NWS-2008-744 (TDA 13) (pdf 150 kb)
  

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