);

Prioritized Crossings – 2002 Clear and Foster Creek Fish Passage Assessment

Of 158 crossings found on fish bearing streams, 81 had some degree of blockage to fish passage (based on methods described in the Final Report). Of these 81 crossings, 27 were complete blockages and 54 were partial blockages. Full fish passage blockage occurs on crossings with jumps greater than 4 feet and a culvert gradient greater than 4%. Partial fish passage blockage occurs in culverts greater than 6 inches in diameter with a slope greater than 0.5% if adequate downstream backwatering is not present.

Of the 81 blockages, 34 are on streams that are thought to have anadromous fish species use. Anadromous fish use was determined by examining historical information regarding fish use in the Clear and Foster Creek basins and evaluating 16 key natural barriers that prevent anadromous travel. These natural barriers were discovered and/or documented during summer 2002 fieldwork. Higher prioritization was given to anadromous habitat compared to resident fish habitat.

We prioritized 77 crossings based on habitat quality alone or habitat quality and cost of replacement. Four crossings were removed from the pool of crossings because of missing data.

Prioritized by habitat quality

  1. CL209 – Middle Clear Creek, Pipe in Clear Ck.
  2. CL069A – Middle Clear Creek, Private
  3. CL088 – Little Clear Creek, Redland/li>
  4. CL216 – Middle Clear Creek, Private
  5. CL123 – Lower Clear Creek, Springwater
  6. FO003 – Foster Creek, Gerber
  7. FO002 – Foster Creek, Gerber
  8. CL068 – Little Clear Creek, BLM trail
  9. CL100 – Lower Clear Creek, Priv. Cedarhurst
  10. CL101 – Lower Clear Creek, Sylvan
  11. CL099 – Lower Clear Creek, Mattoon
  12. CL067 – Little Clear Creek, BLM trail
  13. CL122 – Lower Clear Creek, Babler
  14. CL116 – Lower Clear Creek
  15. CL106 – Lower Clear Creek, Fishers Mill
  16. CL217 – Lower Clear Creek, Private
  17. CL042 – Middle Clear Creek, Private
  18. CL079 – Middle Clear Creek, Clear Ck.
  19. CL119 – Lower Clear Creek, McCubbin
  20. CL046 – Upper Clear Creek, Hillockburn
  21. CL046B – Upper Clear Creek, 211
  22. CL038 – Upper Clear Creek
  23. CL016 – Upper Clear Creek, off Elwood
  24. CL118 – Lower Clear Creek, Hattan
  25. CL211 – Upper Clear Creek, Private
  26. CL232 – Lower Clear Creek
  27. CL125 – Lower Clear Creek, Hattan Rd.
  28. CL083 – Middle Clear Creek, Redland
  29. CL115 – Lower Clear Creek
  30. CL128 – Lower Clear Creek, off Springwater
  31. CL047 – Middle Clear Creek, Private
  32. CL120 – Lower Clear Creek, Gerber
  33. CL036 – Upper Clear Creek, Brenton
  34. FO007 – Foster Creek, Harding
  35. CL007 – Upper Clear Creek, USFS 45
  36. CL060 – Little Clear Creek, Lower Highland
  37. CL065 – Little Clear Creek, Viola Welch
  38. CL087 – Middle Clear Creek
  39. CL108 – Lower Clear Creek, Private
  40. CL069C – Middle Clear Creek, Private
  41. CL003 – Upper Clear Creek
  42. CL229 – Upper Clear Creek, Skinner
  43. CL045 – Upper Clear Creek, Habelt
  44. CL213 – Upper Clear Creek, Private
  45. CL214 – Upper Clear Creek, Private
  46. CL215 – Upper Clear Creek, Private
  47. CL224 – Middle Clear Creek, Mattoon
  48. CL108A – Lower Clear Creek, Dam
  49. CL052 – Middle Clear Creek, Upper Highland
  50. CL089 – Lower Clear Creek
  51. CL084 – Middle Clear Creek, Clear Ck. Rd.
  52. CL058B – Little Clear Creek, Lower Highland
  53. CL064 – Little Clear Creek, S. Lower Highland
  54. CL109 – Lower Clear Creek, Mattoon
  55. CL233 – Lower Clear Creek
  56. CL069D – Middle Clear Creek, Private
  57. CL051 – Middle Clear Creek, private
  58. CL113 – Lower Clear Creek
  59. CL069E – Middle Clear Creek, Private
  60. CL095 – Lower Clear Creek, Mattoon
  61. CL225 – Middle Clear Creek, Fellows
  62. CL223 – Little Clear Creek, Lower Highland
  63. CL053A – Middle Clear Creek, Private
  64. CL143 – Upper Clear Creek
  65. FO016 – Foster Creek, Eaden
  66. CL030 – Upper Clear Creek, Hillockburn
  67. FO011 – Foster Creek, off Gerber
  68. CL069F – Middle Clear Creek, Private
  69. CL006 – Upper Clear Creek
  70. CL057 – Little Clear Creek, Lower Highland
  71. CL066 – Little Clear Creek, Lower Highland
  72. CL230 – Upper Clear Creek, Nawratil
  73. CL226 – Middle Clear Creek, Wallens
  74. CL220 – Upper Clear Creek, Private
  75. CL231 – Middle Clear Creek, Upper Highland
  76. CL228 – Upper Clear Creek, Morgan
  77. CL227 – Upper Clear Creek, Hillockburn

Prioritized by habitat quality/replacement cost

  1. CL209 – Middle Clear Creek, Pipe in Clear Ck.
  2. CL069A – Middle Clear Creek, Private
  3. CL216 – Middle Clear Creek, Private
  4. CL100 – Lower Clear Creek, Priv. Cedarhurst
  5. FO002 – Foster Creek, Gerber
  6. CL123 – Lower Clear Creek, Springwater
  7. CL042 – Middle Clear Creek, Private
  8. CL217 – Lower Clear Creek, Private
  9. CL211 – Upper Clear Creek, Private
  10. CL128 – Lower Clear Creek, off Springwater
  11. CL016 – Upper Clear Creek, off Elwood
  12. CL116 – Lower Clear Creek
  13. CL101 – Lower Clear Creek, Sylvan
  14. CL047 – Middle Clear Creek, Private
  15. CL079 – Middle Clear Creek, Clear Ck.
  16. CL108 – Lower Clear Creek, Private
  17. CL069C – Middle Clear Creek, Private
  18. CL088 – Little Clear Creek, Redland
  19. CL122 – Lower Clear Creek, Babler
  20. CL215 – Upper Clear Creek, Private
  21. CL118 – Lower Clear Creek, Hattan
  22. CL214 – Upper Clear Creek, Private
  23. CL232 – Lower Clear Creek
  24. CL068 – Little Clear Creek, BLM trail
  25. CL213 – Upper Clear Creek, Private
  26. CL067 – Little Clear Creek, BLM trail
  27. CL106 – Lower Clear Creek, Fishers Mill
  28. CL125 – Lower Clear Creek, Hattan Rd.
  29. CL058B – Little Clear Creek, Lower Highland
  30. CL115 – Lower Clear Creek
  31. CL233 – Lower Clear Creek
  32. CL083 – Middle Clear Creek, Redland
  33. CL051 – Middle Clear Creek, private
  34. CL046B – Upper Clear Creek, 211
  35. CL120 – Lower Clear Creek, Gerber
  36. CL099 – Lower Clear Creek, Mattoon
  37. FO011 – Foster Creek, off Gerber
  38. FO007 – Foster Creek, Harding
  39. CL069D – Middle Clear Creek, Private
  40. CL108A – Lower Clear Creek, Dam
  41. CL053A – Middle Clear Creek, Private
  42. CL069E – Middle Clear Creek, Private
  43. FO003 – Foster Creek, Gerber
  44. CL069F – Middle Clear Creek, Private
  45. CL038 – Upper Clear Creek
  46. CL064 – Little Clear Creek, S. Lower Highland
  47. CL065 – Little Clear Creek, Viola Welch
  48. CL045 – Upper Clear Creek, Habelt
  49. CL089 – Lower Clear Creek
  50. CL060 – Little Clear Creek, Lower Highland
  51. CL087 – Middle Clear Creek
  52. CL036 – Upper Clear Creek, Brenton
  53. CL007 – Upper Clear Creek, USFS 45
  54. CL113 – Lower Clear Creek
  55. CL223 – Little Clear Creek, Lower Highland
  56. CL224 – Middle Clear Creek, Mattoon
  57. CL119 – Lower Clear Creek, McCubbin
  58. CL220 – Upper Clear Creek, Private
  59. CL084 – Middle Clear Creek, Clear Ck. Rd.
  60. CL046 – Upper Clear Creek, Hillockburn
  61. CL225 – Middle Clear Creek, Fellows
  62. CL052 – Middle Clear Creek, Upper Highland
  63. CL228 – Upper Clear Creek, Morgan
  64. CL066 – Little Clear Creek, Lower Highland
  65. CL229 – Upper Clear Creek, Skinner
  66. CL003 – Upper Clear Creek
  67. CL057 – Little Clear Creek, Lower Highland
  68. FO016 – Foster Creek, Eaden
  69. CL143 – Upper Clear Creek
  70. CL230 – Upper Clear Creek, Nawratil
  71. CL030 – Upper Clear Creek, Hillockburn
  72. CL109 – Lower Clear Creek, Mattoon
  73. CL231 – Middle Clear Creek, Upper Highland
  74. CL095 – Lower Clear Creek, Mattoon
  75. CL226 – Middle Clear Creek, Wallens
  76. CL006 – Upper Clear Creek
  77. CL227 – Upper Clear Creek, Hillockburn

For more information or to request a copy of the final report, please contact the Clackamas River Basin Council at clackamasriver.org.