BRIDGE SCOUR EVALUATION - PLAN OF ACTION
Br. No.
09C0006 / Owner
Plumas County / Location
AT SH 70 / Facility Carried
PAXTON RD / Name
E BR N FK FEATHER RIVER
Plan of Action
Completed By: /

Date of Completion:

1. SCOUR VULNERABILITY RATING
Scour Evaluation Summary:
Scour History:
a. Foundation Type Spread footing Pile Extension Footing on Piles Unknown
b. Foundation Material Known ______Unknown
Scour Review: Done By: Date:
Structural Assessment: Done By: Date:
Critical Elevation: ______
Geotechnical Assessment: Done By: Date:
Critical Elevation: ______
2. NBIS CODING INFORMATION
Most Recent
Inspection date / 6/25/03
Item 113 Scour / 3
Item 60 Substructure / 5
Item 61 Channel & Channel Protection / 6
Item 71 Waterway Adequacy / 7
3. COUNTERMEASURE RECOMMENDATION
A.  Completed Countermeasures:
B.  Proposed Countermeasures:
Countermeasures Not Required. (Please explain)
Install Scour Countermeasures (See 4 and 5) Estimated Cost
Riprap with monitoring program $
Guide bank $
Spurs / Bendway weirs / Barbs $
Relief bridge / Culvert $
Channel improvements $
Monitoring $
Monitoring device $
Check Dam $
Substructure Modification $
Bridge replacement $
Other ______$
Close Bridge (See 6)
4. COUNTERMEASURE IMPLEMENTATION SCHEDULE
Countermeasure Implementation Project Type:
Proposed Construction Project
Lead Agency
Maintenance Project
Advertised Date:
Other scheduling information:
5. MONITORING PLAN
Monitoring Plan Summary:
Monitoring Authority:
Regular Inspection Program of ______mo. w/surveyed cross sections
Items to Watch: undermining the footing
Increased Inspection Interval of ______mo. w/surveyed cross sections
Items to Watch:.
Underwater Inspection Program Frequency ______mo.
Items to Watch:
Fixed Monitoring Device
Type of Instrument:
Installation location(s):
Sample Interval: 30 min. 1 hr. 6 hrs. 12 hrs.
Other ______
Frequency of data logger downloading: Weekly Bi-weekly Monthly
Other ______
Scour-critical discharge: ______
Action required if scour-critical elevation detected:
Other Monitoring Program
Type: Visual
Instrument
Portable Geophysical Sonar
Other gages
Flood monitoring required: Yes No
Flood monitoring event defined by:
Discharge over ______
Stage ______
Elev. measured from ______
Frequency of flood monitoring: 1 hr. 3 hr. 6 hrs. Other
Scour critical elevation:
Action required if scour-critical elevation detected:
6. BRIDGE CLOSURE PLAN
Bridge ADT: 50 / Built: 1957 / % Trucks: / Bridge Length (ft): 223.1

Closure Plan Summary

Scour Monitoring Criteria for Consideration of Bridge Closure:
Water surface elevation reaches Overtopping road or structure
Scour Measurement Results / Monitoring Device Loss of Riprap
Observed amount of Settlement Loss of Road Embankment
Debris Accumulation
Other
Person / Area Responsible for Closure:
Contact People (Name & Phone No.):
Responsible for re-opening after inspection:
7. DETOUR ROUTE
Detour route description (route number, from - to, etc.) – attach map.
Average ADT: / Year: / % Trucks: / Length:
Bridges on Detour Route:
Bridge Number / Waterway / Sufficiency Rating/
Load limitations / Scour 113 code

Bridge Scour Plan of Action Page 1

BRIDGE SCOUR EVALUATION - PLAN OF ACTION
Br. No.
09C0011 / Owner
Plumas County / Location
3 MI S OF BIG INDIAN CRRD / Facility Carried
BECKWRTH-GENESSEE / Name
RED CLOVER CREEK
Plan of Action
Completed By: /

Date of Completion:

1. SCOUR VULNERABILITY RATING
Scour Evaluation Summary:
Scour History:
a. Foundation Type Spread footing Pile Extension Footing on Piles Unknown
b. Foundation Material Known ______Unknown
Scour Review: Done By: Date:
Structural Assessment: Done By: Date:
Critical Elevation: ______
Geotechnical Assessment: Done By: Date:
Critical Elevation: ______
2. NBIS CODING INFORMATION
Most Recent
Inspection date / 6/25/03
Item 113 Scour / 2
Item 60 Substructure / 7
Item 61 Channel & Channel Protection / 7
Item 71 Waterway Adequacy / 6
3. COUNTERMEASURE RECOMMENDATION
C.  Completed Countermeasures:
D.  Proposed Countermeasures:
Countermeasures Not Required. (Please explain)
Install Scour Countermeasures (See 4 and 5) Estimated Cost
Riprap with monitoring program $
Guide bank $
Spurs / Bendway weirs / Barbs $
Relief bridge / Culvert $
Channel improvements $
Monitoring $
Monitoring device $
Check Dam $
Substructure Modification $
Bridge replacement $
Other ______$
Close Bridge (See 6)
4. COUNTERMEASURE IMPLEMENTATION SCHEDULE
Countermeasure Implementation Project Type:
Proposed Construction Project
Lead Agency
Maintenance Project
Advertised Date:
Other scheduling information:
5. MONITORING PLAN
Monitoring Plan Summary:
Monitoring Authority:
Regular Inspection Program of ______mo. w/surveyed cross sections
Items to Watch: undermining the footing
Increased Inspection Interval of ______mo. w/surveyed cross sections
Items to Watch:.
Underwater Inspection Program Frequency ______mo.
Items to Watch:
Fixed Monitoring Device
Type of Instrument:
Installation location(s):
Sample Interval: 30 min. 1 hr. 6 hrs. 12 hrs.
Other ______
Frequency of data logger downloading: Weekly Bi-weekly Monthly
Other ______
Scour-critical discharge: ______
Action required if scour-critical elevation detected:
Other Monitoring Program
Type: Visual
Instrument
Portable Geophysical Sonar
Other gages
Flood monitoring required: Yes No
Flood monitoring event defined by:
Discharge over ______
Stage ______
Elev. measured from ______
Frequency of flood monitoring: 1 hr. 3 hr. 6 hrs. Other
Scour critical elevation:
Action required if scour-critical elevation detected:
6. BRIDGE CLOSURE PLAN
Bridge ADT: 55 / Built: 1962 / % Trucks: / Bridge Length (ft): 138.1

Closure Plan Summary

Scour Monitoring Criteria for Consideration of Bridge Closure:
Water surface elevation reaches Overtopping road or structure
Scour Measurement Results / Monitoring Device Loss of Riprap
Observed amount of Settlement Loss of Road Embankment
Debris Accumulation
Other
Person / Area Responsible for Closure:
Contact People (Name & Phone No.):
Responsible for re-opening after inspection:
7. DETOUR ROUTE
Detour route description (route number, from - to, etc.) – attach map.
Average ADT: / Year: / % Trucks: / Length:
Bridges on Detour Route:
Bridge Number / Waterway / Sufficiency Rating/
Load limitations / Scour 113 code

Bridge Scour Plan of Action Page 1

Bridge Scour Plan of Action Page 1

BRIDGE SCOUR EVALUATION - PLAN OF ACTION
Br. No.
09C0039 / Owner
Plumas County / Location
0.1 MI N BUCKS LAKE RD / Facility Carried
CR 413 / Name
SPANISH CREEK
Plan of Action
Completed By: /

Date of Completion:

1. SCOUR VULNERABILITY RATING
Scour Evaluation Summary:
Scour History:
a. Foundation Type Spread footing Pile Extension Footing on Piles Unknown
b. Foundation Material Known ______Unknown
Scour Review: Done By: Date:
Structural Assessment: Done By: Date:
Critical Elevation: ______
Geotechnical Assessment: Done By: Date:
Critical Elevation: ______
2. NBIS CODING INFORMATION
Most Recent
Inspection date / 6/24/03
Item 113 Scour / 3
Item 60 Substructure / 3
Item 61 Channel & Channel Protection / 3
Item 71 Waterway Adequacy / 5
3. COUNTERMEASURE RECOMMENDATION
E.  Completed Countermeasures:
F.  Proposed Countermeasures:
Countermeasures Not Required. (Please explain)
Install Scour Countermeasures (See 4 and 5) Estimated Cost
Riprap with monitoring program $
Guide bank $
Spurs / Bendway weirs / Barbs $
Relief bridge / Culvert $
Channel improvements $
Monitoring $
Monitoring device $
Check Dam $
Substructure Modification $
Bridge replacement $
Other ______$
Close Bridge (See 6)
4. COUNTERMEASURE IMPLEMENTATION SCHEDULE
Countermeasure Implementation Project Type:
Proposed Construction Project
Lead Agency
Maintenance Project
Advertised Date:
Other scheduling information:
5. MONITORING PLAN
Monitoring Plan Summary:
Monitoring Authority:
Regular Inspection Program of ______mo. w/surveyed cross sections
Items to Watch: undermining the footing
Increased Inspection Interval of ______mo. w/surveyed cross sections
Items to Watch:.
Underwater Inspection Program Frequency ______mo.
Items to Watch:
Fixed Monitoring Device
Type of Instrument:
Installation location(s):
Sample Interval: 30 min. 1 hr. 6 hrs. 12 hrs.
Other ______
Frequency of data logger downloading: Weekly Bi-weekly Monthly
Other ______
Scour-critical discharge: ______
Action required if scour-critical elevation detected:
Other Monitoring Program
Type: Visual
Instrument
Portable Geophysical Sonar
Other gages
Flood monitoring required: Yes No
Flood monitoring event defined by:
Discharge over ______
Stage ______
Elev. measured from ______
Frequency of flood monitoring: 1 hr. 3 hr. 6 hrs. Other
Scour critical elevation:
Action required if scour-critical elevation detected:
6. BRIDGE CLOSURE PLAN
Bridge ADT: 55 / Built: 1950 / % Trucks: / Bridge Length (ft): 49.9

Closure Plan Summary

Scour Monitoring Criteria for Consideration of Bridge Closure:
Water surface elevation reaches Overtopping road or structure
Scour Measurement Results / Monitoring Device Loss of Riprap
Observed amount of Settlement Loss of Road Embankment
Debris Accumulation
Other
Person / Area Responsible for Closure:
Contact People (Name & Phone No.):
Responsible for re-opening after inspection:
7. DETOUR ROUTE
Detour route description (route number, from - to, etc.) – attach map.
Average ADT: / Year: / % Trucks: / Length:
Bridges on Detour Route:
Bridge Number / Waterway / Sufficiency Rating/
Load limitations / Scour 113 code

Bridge Scour Plan of Action Page 1

Bridge Scour Plan of Action Page 1

BRIDGE SCOUR EVALUATION - PLAN OF ACTION
Br. No.
09C0067 / Owner
Plumas County / Location
13.4 MI NW SH36 / Facility Carried
WARNER VALLEY RD / Name
WARNER CREEK
Plan of Action
Completed By: /

Date of Completion:

1. SCOUR VULNERABILITY RATING
Scour Evaluation Summary:
Scour History:
a. Foundation Type Spread footing Pile Extension Footing on Piles Unknown
b. Foundation Material Known ______Unknown
Scour Review: Done By: Date:
Structural Assessment: Done By: Date:
Critical Elevation: ______
Geotechnical Assessment: Done By: Date:
Critical Elevation: ______
2. NBIS CODING INFORMATION
Most Recent
Inspection date / 6/23/03
Item 113 Scour / 2
Item 60 Substructure / 5
Item 61 Channel & Channel Protection / 4
Item 71 Waterway Adequacy / 5
3. COUNTERMEASURE RECOMMENDATION
G.  Completed Countermeasures:
H.  Proposed Countermeasures:
Countermeasures Not Required. (Please explain)
Install Scour Countermeasures (See 4 and 5) Estimated Cost
Riprap with monitoring program $
Guide bank $
Spurs / Bendway weirs / Barbs $
Relief bridge / Culvert $
Channel improvements $
Monitoring $
Monitoring device $
Check Dam $
Substructure Modification $
Bridge replacement $
Other ______$
Close Bridge (See 6)
4. COUNTERMEASURE IMPLEMENTATION SCHEDULE
Countermeasure Implementation Project Type:
Proposed Construction Project
Lead Agency
Maintenance Project
Advertised Date:
Other scheduling information:
5. MONITORING PLAN
Monitoring Plan Summary:
Monitoring Authority:
Regular Inspection Program of ______mo. w/surveyed cross sections
Items to Watch: undermining the footing
Increased Inspection Interval of ______mo. w/surveyed cross sections
Items to Watch:.
Underwater Inspection Program Frequency ______mo.
Items to Watch:
Fixed Monitoring Device
Type of Instrument:
Installation location(s):
Sample Interval: 30 min. 1 hr. 6 hrs. 12 hrs.
Other ______
Frequency of data logger downloading: Weekly Bi-weekly Monthly
Other ______
Scour-critical discharge: ______
Action required if scour-critical elevation detected:
Other Monitoring Program
Type: Visual
Instrument
Portable Geophysical Sonar
Other gages
Flood monitoring required: Yes No
Flood monitoring event defined by:
Discharge over ______
Stage ______
Elev. measured from ______
Frequency of flood monitoring: 1 hr. 3 hr. 6 hrs. Other
Scour critical elevation:
Action required if scour-critical elevation detected:
6. BRIDGE CLOSURE PLAN
Bridge ADT: 200 / Built: 1965 / % Trucks: 2 / Bridge Length (ft): 24.9

Closure Plan Summary

Scour Monitoring Criteria for Consideration of Bridge Closure:
Water surface elevation reaches Overtopping road or structure
Scour Measurement Results / Monitoring Device Loss of Riprap
Observed amount of Settlement Loss of Road Embankment
Debris Accumulation
Other
Person / Area Responsible for Closure:
Contact People (Name & Phone No.):
Responsible for re-opening after inspection:
7. DETOUR ROUTE
Detour route description (route number, from - to, etc.) – attach map.
Average ADT: / Year: / % Trucks: / Length:
Bridges on Detour Route:
Bridge Number / Waterway / Sufficiency Rating/
Load limitations / Scour 113 code

Bridge Scour Plan of Action Page 1

Bridge Scour Plan of Action Page 1

BRIDGE SCOUR EVALUATION - PLAN OF ACTION
Br. No.
09C0130 / Owner
CITY OF PORTOLA / Location
0.2 MI S SH 70 / Facility Carried
GULLING STREET / Name
MIDDLE FORK FEATHER RIV
Plan of Action
Completed By: /

Date of Completion:

1. SCOUR VULNERABILITY RATING
Scour Evaluation Summary:
Scour History:
a. Foundation Type Spread footing Pile Extension Footing on Piles Unknown
b. Foundation Material Known ______Unknown
Scour Review: Done By: Date:
Structural Assessment: Done By: Date:
Critical Elevation: ______
Geotechnical Assessment: Done By: Date:
Critical Elevation: ______
2. NBIS CODING INFORMATION
Most Recent
Inspection date / 8/18/04
Item 113 Scour / 3
Item 60 Substructure / 6
Item 61 Channel & Channel Protection / 6
Item 71 Waterway Adequacy / 8
3. COUNTERMEASURE RECOMMENDATION
I.  Completed Countermeasures:
J.  Proposed Countermeasures:
Countermeasures Not Required. (Please explain)
Install Scour Countermeasures (See 4 and 5) Estimated Cost
Riprap with monitoring program $
Guide bank $
Spurs / Bendway weirs / Barbs $
Relief bridge / Culvert $
Channel improvements $
Monitoring $
Monitoring device $
Check Dam $
Substructure Modification $
Bridge replacement $
Other ______$
Close Bridge (See 6)
4. COUNTERMEASURE IMPLEMENTATION SCHEDULE
Countermeasure Implementation Project Type:
Proposed Construction Project
Lead Agency
Maintenance Project
Advertised Date:
Other scheduling information:
5. MONITORING PLAN
Monitoring Plan Summary:
Monitoring Authority:
Regular Inspection Program of ______mo. w/surveyed cross sections
Items to Watch: undermining the footing
Increased Inspection Interval of ______mo. w/surveyed cross sections
Items to Watch:.
Underwater Inspection Program Frequency ______mo.
Items to Watch:
Fixed Monitoring Device
Type of Instrument:
Installation location(s):
Sample Interval: 30 min. 1 hr. 6 hrs. 12 hrs.
Other ______
Frequency of data logger downloading: Weekly Bi-weekly Monthly
Other ______
Scour-critical discharge: ______
Action required if scour-critical elevation detected:
Other Monitoring Program
Type: Visual
Instrument
Portable Geophysical Sonar
Other gages
Flood monitoring required: Yes No
Flood monitoring event defined by:
Discharge over ______
Stage ______
Elev. measured from ______
Frequency of flood monitoring: 1 hr. 3 hr. 6 hrs. Other
Scour critical elevation:
Action required if scour-critical elevation detected:
6. BRIDGE CLOSURE PLAN
Bridge ADT: 5000 / Built: 1954 / % Trucks: 8 / Bridge Length (ft): 252.0

Closure Plan Summary

Scour Monitoring Criteria for Consideration of Bridge Closure:
Water surface elevation reaches Overtopping road or structure
Scour Measurement Results / Monitoring Device Loss of Riprap
Observed amount of Settlement Loss of Road Embankment
Debris Accumulation
Other
Person / Area Responsible for Closure:
Contact People (Name & Phone No.):
Responsible for re-opening after inspection:
7. DETOUR ROUTE
Detour route description (route number, from - to, etc.) – attach map.
Average ADT: / Year: / % Trucks: / Length:
Bridges on Detour Route:
Bridge Number / Waterway / Sufficiency Rating/
Load limitations / Scour 113 code

Bridge Scour Plan of Action Page 1