Br. No.
53C0589 / Owner
Los Angeles County / Location
0.1 MI W/O BOBS GAP RD / Facility Carried
VALYERMO RD / Name
BIG ROCK CREEK
Plan of Action
Completed By: /
Date of Completion:
1. SCOUR VULNERABILITY RATINGScour Evaluation Summary:
Scour History:
a. Foundation Type Spread footing Pile Extension Footing on Piles Unknownb. 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 / 5/11/04
Item 113 Scour / 3
Item 60 Substructure / 7
Item 61 Channel & Channel Protection / 4
Item 71 Waterway Adequacy / 5
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: 1500 / Built: 1927 / % Trucks: 1 / Bridge Length (ft): 161.1
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 ACTIONBr. No.
53C0620 / Owner
Los Angeles County / Location
4 MI S VENTURA FWY / Facility Carried
MALIBU CYN RD / Name
MALIBU CREEK
Plan of Action
Completed By: /
Date of Completion:
1. SCOUR VULNERABILITY RATINGScour Evaluation Summary:
Scour History:
a. Foundation Type Spread footing Pile Extension Footing on Piles Unknownb. 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 / 3/10/03
Item 113 Scour / 3
Item 60 Substructure / 7
Item 61 Channel & Channel Protection / 7
Item 71 Waterway Adequacy / 7
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: 19578 / Built: 1953 / % Trucks: 2 / Bridge Length (ft): 216.9
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 ACTIONBr. No.
53C0828 / Owner
CITY OF WESTLAKE VILLAGE / Location
1.5 MI S VENTURA FWY / Facility Carried
LINDERO CANYON ROA / Name
TRIUNFO CANYON CREEK
Plan of Action
Completed By: /
Date of Completion:
1. SCOUR VULNERABILITY RATINGScour Evaluation Summary:
Scour History:
a. Foundation Type Spread footing Pile Extension Footing on Piles Unknownb. 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 / 7/22/04
Item 113 Scour / 2
Item 60 Substructure / 7
Item 61 Channel & Channel Protection / 7
Item 71 Waterway Adequacy / 8
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: 8700 / Built: 1970 / % Trucks: 2 / Bridge Length (ft): 186.0
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
Bridge Scour Plan of Action Page 1
BRIDGE SCOUR EVALUATION - PLAN OF ACTIONBr. No.
53C1004 / Owner
Los Angeles County / Location
0.25 MI S OF MULHOLLAND W / Facility Carried
CRAGS DRIVE / Name
TRIFUNO CREEK
Plan of Action
Completed By: /
Date of Completion:
1. SCOUR VULNERABILITY RATINGScour Evaluation Summary:
Scour History:
a. Foundation Type Spread footing Pile Extension Footing on Piles Unknownb. 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 / 12/3/01
Item 113 Scour / 3
Item 60 Substructure / 7
Item 61 Channel & Channel Protection / 6
Item 71 Waterway Adequacy / 8
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: 1000 / Built: 1951 / % Trucks: 1 / Bridge Length (ft): 164.1
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 Plan of Action Page 1