Summary Table: Prescription Sites, Predicted Problems/Concerns, and Potential Courses of Action

Site

Location

Predicted Problems/Concerns

Potential Courses of Actions

Funding Eligibility

Priority

A1

Reach 1 - Woodjam Creek, downstream of bridge on right bank (Lot 339)

Point source sediment deposition from upland

Stream bank erosion

Cattle trampling of instream gravels

  • Fencing of upland to promote upland bare soil re-colonization
  • Riparian fencing
  • Riparian planting

- spiling:

- wattling

?

1b

A2

Reach 1 - Woodjam Creek ~50-100 m upstream of mouth on right bank. (L 2564)

Same as for A1; riparian shrub community is wider here except adjacent to exposed soil areas

  • Fencing of upland to promote upland bare soil re-colonization

- broadcast seeding

  • Riparian fencing
  • Riparian planting

- spiling:

- wattling:

?

1b

A3

Entire length of Reach 1 Woodjam Creek

Significant historical reduction in width of effective riparian shrub community

Potential aggradation of channel

  • Riparian planting and fencing
  • Coarse woody debris placement for cover
  • Instream habitat complexing (placement of large substrates to create riffle-pool habitat controlled by large cobbles and boulders.

?

1a

A4

Entire length of reach 2 – Woodjam Creek (Lots 6317, 3779, 2565, 339)

Significant historical reduction in width of effective riparian shrub community;

Potential aggradation of channel

  • Riparian planting and fencing
  • Coarse woody debris placement within channel for cover
  • Instream habitat complexing (placement of large substrates to create riffle-pool sequences controlled by large cobbles and boulders

?

1a

A5

Entire reach 3 – Woodjam Creek (Lot 6317)

Significant channel widening and migration along entire reach (particularly downstream of prescription site C3) Channel aggradation appears to be occurring. Riparian vegetation has been significantly reduced by encroaching agricultural development and cattle grazing. Potential scour in steeper reaches upstream (10, 11, 12 and 14) may be contributing to aggradation of this and other reaches.

  • Riparian planting

- spiling:

- wattling:

  • Riparian fencing
  • Coarse woody debris placement for cover

?

1a

Site

Location

Predicted Problems/Concerns

Potential Courses of Actions

Funding Eligibility

Priority

R1

Deerhorn Road on west side of Woodjam in lower Reach 7

Chronic sediment delivery through cutblock and into Woodjam Creek. A sump has been has been installed downslope of road to trap sediment (further details can be obtained from Frank Kaempf – Riverside)

  • Indication from Riverside is that little can be done apart from cleaning sump periodically. Assess options;
  • Assess potential to divert run-off.

Y?

1a

R2

Reach 1 – WSC 160-635400-29700-27400 adjacent to cutblock harvested 1994.

Potential sediment source from road cutbank at switchback

  • Potential seeding and/or planting

Y?

1a

R3

Reach 8 – Woodjam Creek

Left bank

Three locations adjacent to each other where potential run-off from the roads is delivering sediment to Woodjam Creek

Highest potential for run-off is from steep spur road Culvert draining wetland may be undersized for transmitting wetland run-off

  • Assess road condition
  • Check for run-off in spring
  • Deactivate road, or install additional waterbars
  • If culvert draining wetland is too small, replace with larger diameter to minimize road wash out

N?

1a

C1

Reach 2 – Woodjam Creek (Lot 2565)

Creek crossing structure is unknown

Chronic sediment source may exist

  • Assess suitability of existing crossing structure;
  • Potential bridge installation,
  • Potential bank stabilization with rip rap, seeding or riparian planting

?

2a

C2

Reach 1 - ILP 001;

Chronic sediment source at crossing directly downstream of reach break; impact is related to the crossing and/or upstream erosion from exposed soils

  • Install culvert
  • Stabilize fill with rip rap, broadcast seeding or riparian planting
  • Fence exposed soil and broadcast seed to speed recovery and mitigate erosion problems

?

2b

C3

Reach 3 – Woodjam Creek

Potential chronic sediment delivery at this creek crossing; structure is unknown

  • Confirm crossing structure,
  • If crossing is culvert, replace with bridge;
  • Stabilize eroding banks using rip rap in fill and riparian planting

?

2a

C4

Reach 1 – Little Maclean Creek (WSC

Crossing structure unknown; potential fish passage barrier

Natural access further upstream may also be limited by series of small falls and low water levels. Low priority site unless chronic sediment source is observed

  • Confirm crossing structure and determine fish passage barrier status.
  • Replace if determined to be a barrier

?

2a

Site

Location

Predicted Problems/Concerns

Potential Courses of Actions

Funding Eligibility

Priority

C5

Reach 1 – WSC 160-635400-29700-25800 just upstream of mouth (Lot 9577).

Creek crossing is likely a ford used by cattle and by lot owner to collect cattle

Crossing may be a source of sediment.

Chronic bank erosion may be occurring as a result of cattle trampling

  • Assess crossing
  • Determine need for installing a structure,
  • Stabilize banks through riparian planting

- spiling

- watttling

?

2b

C6

Reach 1 – Maclean Creek

Potential sediment source at mouth of ILP 001 where a ford appears to provide agricultural vehicles and cattle access to either side of the creek.

  • Bridge or culvert installation
  • Fill and bank stabilization through riparian planting and/or riprap placement

?

2a

H1

Reach 6 Woodjam Creek on east bank and two 1st-order tributaries within block

Potential streambank integrity concerns and loss of riparian shading and woody debris recruitment

  • Determine FPC stream classification
  • Determine whether correct riparian reserve zone was maintained along Woodjam Creek
  • Potentially conduct riparian assessment examining whether streambank instability concerns exist and whether stream shading and large woody debris recruitment potential have been affected by harvesting

N?

3

H2

Reach 8 – Woodjam Creek

Steep sideslope on west bank of Woodjam has potential to deliver sediment to stream, particularly if harvest-related blowdown occurs on the sideslope.

Harvesting appears to have occurred right to the edge of the steep slope

  • Examine site to determine risk of sediment delivery to Woodjam Creek,
  • Assess risk of blowdown
  • Prescribe pro-active measures to minimize likelihood of blowdown and blowdown-related sediment delivery and/or bank erosion.

N?

3

H3

Reaches 11, 12, 13 –Woodjam Creek on north and east banks

Harvesting right to creek channel may have created bank instability problems;

Removal of riparian vegetation has reduced shading and LWD recruitment

 

  • Assess effects of removal of riparian vegetation,
  • Assess value and nature of fish habitats
  • Prescribe appropriate riparian or instream works to rehabilitate degraded fish habitats, including riparian planting, bank stabilization, and instream habitat creation

Y

2a