Wildcat Fish Passage Culvert Replacement
Statement of Work and Budget FY2005

BPA Project Number:  1992-026-01
BPA Project Title: Grande Ronde Model Watershed Program
Contract Number:  New
Contract Title: Wildcat Fish Passage Culvert Replacement
Performance/Budget Period: April 1st, 2005 - September 30th, 2005

Technical Contact Name: Russ McMartin
Technical Contact Title: Director
Wallowa Co. Public Works
619 Marr Pond Lane
Enterprise, OR 97828
541.426.3332/ 541.426.2074
wcroad@uci.net

Contracting Contact Name: Russ McMartin
Contracting Contact Title: Director
Wallowa Co. Public Works
619 Marr Pond Lane
Enterprise, OR 97828
541.426.3332/ 541.426.2074
wcroad@uci.net

Financial Contact Name: Russ McMartin
Financial Contact Title: Director
Wallowa Co. Public Works
619 Marr Pond Lane
Enterprise, OR 97828
541.426.3332/ 541.426.2074
wcroad@uci.net
"PROJECT LOCATION:
This project is located on Wildcat Creek, tributary of the Grande Ronde River, 4.0 miles above the confluence of Wildcat Creek and the Grande Ronde River.  The project legal description is T4N, R43E, Section 7, SW¼ of NW1/4 (see attached map).  "
"PROJECT OBJECTIVES:
• Reduce sediment and bedload input to Wildcat Creek and the Grande Ronde River
• Improve year-around adult and juvenile fish passage
• Restore natural bedload transport
• Reduce risk of culvert wash-out"
"PROJECT DESCRIPTION:
Introduction:  The Promise Road crossings of Wildcat Creek and Wallupa Creek have had a history of washing out at moderate to high peak flows.  There are six crossings total, three on each creek. Culverts at 0.8 miles and 3.3 miles (from the Grande Ronde River) on Wildcat Creek were replaced with bottomless arches in 2001.  Two other bottomless arches were installed on Wallupa Creek at 4.1 miles and 9.1 miles several years ago (year unknown).  This project proposes to replace a damaged and undersized bottom-less arch with a bridge at 4.0 miles, just above the confluence of Wallupa Creek and Wildcat Creek.  The Promise Road is a major recreational and commercial use road from the lower Wallowa Valley area to the Grande Ronde River. "
Existing Condition:  The Wildcat system is steep canyon country characterized by flashy peak flows.  Undersized culverts or arches in this system have washed out multiple times.  Each time a crossing has washed out large quantities of sediment and bedload from the road prism have been introduced into the system.  The last time this crossing washed out (year unknown) the repair consisted of replacing and compacting the fill around the existing arch.  During the course repair the arch was partially collapsed, reducing capacity.  Additionally a large rock partially blocks the entrance (see photos).  The existing arch is 9.8 feet wide at the bottom and 28 feet long.  Average bankfull width through this reach is twenty six feet (NPT culvert survey).
Wildcat Creek is significant steelhead producer in the Lower Grande Ronde.   Sediment and temperature are limiting factors for steelhead production in the Wildcat system (Grande Ronde Subbasin Plan).  High water velocity, during peak flows, may present a velocity barrier to adult steelhead during a  portion of migration.  Juvenile passage upstream likely is also restricted at higher flows.  There are approximately 12 miles of available spawning and rearing habitat above this crossing.  
Specific Actions:   Wallowa County Public Works Department proposes to replace the undersized arch with a prefabricated bridge.  Anderson-Perry Engineering will provide final engineering designs.  The bridge span will be 30 feet, width will be 24 feet.  Pre-cast eco-blocks will be used for bridge abutments.  Rip-rap will be placed at the upstream and downstream ends of the bridge to armor the exposed road prism.  Traffic will be restricted for approximately one week during construction.
"Specific actions/deliverables are:
Pre-project
• Conduct environmental compliance - ESA Consultation, permits (Anderson-Perry)
• Design bridge (Anderson-Perry)
• Project planning, scheduling (Wallowa County PWD)

Construction
• Remove and dispose of the existing arch
• Place pre-cast eco-block footings
• Install the bridge---------*
• Seed disturbed ground"
The bridge will be constructed using two 12 foot wide modules (supplied by Big R Manufacturing) consisting of steel I-beam structure and steel decking.  Wallowa County PWD will supervise and conduct all construction activities.
"Benefits:
• Restoration of unimpeded steelhead and resident rainbow access to 12 miles of Wildcat Creek
• Restoration of natural bedload transport
• Reduced potential of structure wash-out, and sediment and bedload introduction into lower Wildcat Creek and the Grande Ronde River."
"Project Maintenance:
The new installation should require very little maintenance, basically periodic inspection of bridge footings. Wallowa County Public Works Department will maintain the structure in conjunction with maintenance of the Promise Road."
"Consultation/Permits:
The project will require:
• Section 7 ESA Consultation with NOAA and USFWS  (Wallowa Co. contract w/Anderson Perry)
• COE NWP 03 for culvert replacement (Wallowa Co. contract w/Anderson Perry)
• DSL permit (may be exempt)"
"Monitoring Plan/Reporting:  
Wallowa County PWD will conduct all project monitoring.  
Monitoring will include:
• Project completion report describing the implementation, and achievement of the above stated objectives, submitted to the GRMWP.  This report will follow the guidelines that have been established jointly by BPA and the GRMWP.
• During and post construction photos, minimum of three photo-points.
• Post-project monitoring report at year 2 describing bridge functionality and maintenance, and retake of photo-points."
"Work Dates:
Construction will occur during the in-stream work window, July 1, 2005 to October 15, 2005."