Exhibit A - Seismic Evaluation for Pleasant Hill High School Gymnasium.pdf
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Seismic Evaluation Report for Pleasant Hill High School Gymnasium
This is a seismic evaluation report prepared by WRK Engineers for the Pleasant Hill School District, detailing the structural and nonstructural deficiencies of the Pleasant Hill High School Gymnasium located at 84455 N Enterprise Road, Pleasant Hill, Oregon 97455. The report, dated January 5, 2024, and prepared by Brian Knight, PE, SE, identifies 25 structural deficiencies and 9 nonstructural deficiencies requiring seismic rehabilitation to meet Immediate Occupancy (IO) and Life Safety (LS) performance objectives. The gymnasium, constructed in 1961, is an 18,600-square-foot single-story building composed of wood framing and unreinforced masonry (URM), with a rectangular footprint of approximately 200 feet by 111 feet and maximum roof height of 35 feet. The building features wood-framed shear walls, flexible diaphragms, glulam arches supporting the roof system, and URM bearing walls with flexible diaphragms. The comprehensive retrofit scope includes strengthening the load path, adding plywood sheathing overlays to diaphragms, installing hold-down anchors and sill bolts, providing wall anchorage for out-of-plane forces, adding HSS strongback bracing for URM walls, implementing seismic isolation joints for adjacent building separation, and mitigating nonstructural hazards such as unreinforced masonry partition bracing, equipment anchoring, and piping flexibility.
The total seismic rehabilitation cost is estimated at $2,499,940, representing $134.41 per square foot for the 18,600-square-foot retrofit area. The cost estimate breakdown includes $341,991 for engineering, $47,999 for construction management, $1,716,626 for construction, $59,999 for relocation, and $333,325 for contingency. The evaluation employed ASCE 41-17 standards and Tier 1 checklist methodology, establishing a Basic Performance Objective for Risk Category IV structures with target performance levels of IO structural and Position Retention (PR) nonstructural for BSE-1E seismic events, and Life Safety (LS) structural and Hazards Reduced (HR) nonstructural for BSE-2E seismic events. A benefit-cost analysis was conducted using the Oregon Business Development Department-Infrastructure Finance Authority BCA tool, yielding a benefit-cost ratio of 0.682 with total anticipated benefits of $1,704,692 in avoided damages and losses. The site is located in a high seismicity zone with stiff soil conditions (ASCE 7-16 Class D), and DOGAMI evaluations confirmed no geologic hazards including liquefaction, slope failure, or flooding. The building qualifies as a candidate for seismic rehabilitation under Oregon Administrative Rule 123-051-0300 as a public school building with capacity exceeding 250 persons and routine student occupancy.
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SEISMIC EVALUATION REPORT
Pleasant Hill
School District
Seismic Assessment for
Pleasant Hill High School
Gymnasium
84455 N Enterprise Rd.
Pleasant Hill, OR 97455
Prepared for:
Jim Crist
Superintendent
January 5, 2024
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Prepared By:
WRK Engineers
Brian Knight PE, SE |Principal brian@wrkengrs.com
360.695.9731
EXPIRES: 6/30/2025
REQUEST FOR QUALIFICATIONS
FOR ENGINEERING/ARCHITECTURAL SERVICES
EXHIBIT A
Pleasant Hill School District
High School Gymnasium
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Page i
Project Summary Information
Buildin g Part
Building Part
Name
Included in
Retrofit
Year
Built
Building
Type*
Nonstructural
Retrofits included in
Scope Y/N*
Previous
Seismic Retrofit
Y/N*
(year if Y)
A Auxiliary
Gymnasium No 1961
B High School
Gymnasium Yes 1961
W2 /
URM
Yes No
C Music Center/
Cafeteria No 1961
D Administration
Building No 1961
E Library No 1961
F Classroom
Building No 1964
G Classroom/
Shop Building No 1964
H
Weight
Room/Team room
No 1974
I Classroom
Building No 1967
J Forestry
Building No 1967
*Entries required ONLY for building parts included in proposed seismic retrofit. If building part was previously or is currently being retrofitted, please list the building part’s Risk Category and retrofit design Performance Objective, if known.
Nonstructural deficiencies posing life safety risk MUST be included in the scope of work and budget.
Seismic fragility inputs for existing buildings with previous seismic retrofits MUST be adjusted to reflect previous seismic retrofit measures completed for at building part.
Total Retrofit Cost $2,499,940
Retrofit Square Feet 18,600 SF
Retrofit Cost Per Square
Feet $134.41 Yes or No?
Is the campus within a tsunami**, FEMA flood zone, landslide/slope instability, liquefaction potential or other high hazard area?
If so, provide documentation (e.g. the Oregon Statewide Hazards
Viewer by DOGAMI).
** Projects within a Tsunami Design Zone (as defined in Application Guidance Packet section
2.D.16) require consultation with DOGAMI prior to application submittal. Applicant shall include such documentation with the application.
No
Page ii
Engineering Report Checklist
☒ Engineering Report Cover Page
☒ Project Summary Page Page i
☒ Building Parts Identification Page 5
☒ Statement of the Performance Objective Page 2
Summary of Deficiencies
☒ Structural Seismic Deficiencies Page 7
☒ Nonstructural Seismic Deficiencies Page 10
Summary of Mitigation/Retrofit
☒ Structural Mitigation/Retrofit Page 7
☒ Nonstructural Mitigation/Retrofit Page 10
Summary Construction Cost Estimate
☒ Direct Cost Page 11
☒ Indirect Soft Cost Page 11
☒ Certification Statement by Engineer Page 13
ASCE 41-17 Tier 1 Checklist
☒ Basic Configuration Checklist Appendix E
☒ Building System Structural Checklist Appendix E
☒ Nonstructural Checklist Appendix E
☒ Retrofit Drawings & Sketches Appendix B
☒ DOGAMI or Geotechnical Report Appendix F
☒ Itemized Construction Cost Estimate Appendix C
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Page iii
Table of Contents
1. Project Background
2. Candidate Qualifications
3. Evaluation Criteria and Methodology
4. Building Description
5. Existing Material Test Results
6. Site Specific Seismicity and Geologic Hazards
7. Building Deficiencies & Recommended Strengthening Measures
7.1 Structural Deficiencies & Strengthening Measures
7.2 Nonstructural Deficiencies & Strengthening Measures
8. Construction Cost Estimate
9. Benefit Cost Analysis
10. Rapid Visual Screening
11. Limitations
12. Certification Statement
APPENDICES
Appendix A Building Photos
Appendix B Conceptual Seismic Strengthening Scheme
Appendix C Construction Cost Estimate
Appendix D Benefit Cost Analysis Worksheet
Appendix E ASCE 41-17 Tier 1 Checklists
Appendix F DOGAMI and RVS
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1. Project Background
The goal of this evaluation of the Pleasant Hill High School Gymnasium (Gymnasium) is to determine the expected performance during a design basis earthquake. The purpose of our seismic evaluation is to identify the structural and nonstructural deficiencies that exist at the Gymnasium. The evaluation will then be used as the basis for developing a suitable strengthening scheme for the structural system. In addition, the evaluation will assist us in identifying the nonstructural components requiring seismic hardening (i.e. anchorage and/or bracing).
In addition to the Gymnasium described in this report, there are nine (9) other buildings on the site: the auxiliary gymnasium, music center/cafeteria, administration building, library, two classroom buildings, classroom/shop building, weight room, and a forestry building. These buildings are outside of the scope of work and are not included in this report.
Our work is based on the following:
1. A review of available construction documents for the high school gymnasium prepared by Clare K. Hamlin, B. King Martin, dated 1961.
2. A review of available construction documents for the weight room prepared by 1974, dated Hamlin, Martin, Schultz & Geyer.
3. A site visit by Brian Knight, PE, SE, of WRK Engineers on April 14, 2023, to verify the as-built conditions of the building’s structural and nonstructural systems.
2. Candidate Qualifications
Upon review of OAR 123-051-0300 regarding eligible applicants for the Seismic
Rehabilitation Grant, we have confirmed the Pleasant Hill High School Gymnasium is a qualified candidate as it is a public school building routinely used for student activity with a capacity of more than 250 persons, and the building is owned by the Pleasant Hill
School District.
We believe the Pleasant Hill High School Gymnasium is a good candidate for seismic strengthening based on the criteria highlighted in Table 1.
3. Evaluation Criteria and Methodology
For our evaluation of the Gymnasium, we used ASCE Standard 41-17, “Seismic Evaluation and Retrofit of Existing Buildings” published by the American Society of Civil Engineers
(ASCE). ASCE 41 is the nationally recognized Standard for seismic assessment and evaluation of existing buildings. The goal of ASCE 41 is to identify the “weak links” in a building’s lateral force resisting system that can lead to significant failure and/or collapse.
In addition, ASCE 41 will identify typical nonstructural hazards that may pose a life-safety risk to occupants or a business interruption (i.e. operations) risk to the building.
The methodology utilizes a series of checklists that address possible seismic hazards.
Checklists are included in the Standard for all the major structural systems, nonstructural elements, and geologic and site hazards. The evaluating engineer addresses each statement and determines whether it is compliant or noncompliant. Compliant statements identify conditions that are acceptable. Noncompliant statements identify conditions that need further investigation. In some cases, the Standard specifies additional calculations that may be performed to address a noncompliant statement. In other cases, a detailed analysis of the building must be performed.
ASCE 41-17 provides Performance Objectives based on a building’s Risk Category which are to be used for the evaluation and retrofit of existing buildings. For our evaluation, we have used the Basic Performance Objective for Existing Buildings (BPOE) for Risk Category
IV structures. For this performance objective, the building is evaluated to the Life Safety
(LS) structural performance level and Hazards Reduced nonstructural performance level for the BSE-2E seismic hazard and to the Immediate Occupancy (IO) structural performance level and Position Retention (PR) nonstructural performance level for the
BSE-1E seismic hazard.
TABLE 1 – Candidate Summary
Criteria Response
Is the building in good condition? Yes
Is the building a functional part of the community? Yes
Is the building part of the community’s emergency response (RC IV)? Yes
Is the cost of a rehabilitation low relative to a new building cost? Yes
Is the building located within a site that has low flood or landslide hazards? Yes
Is the seismic rehabilitation cost less than the allowable grant maximum? Yes
Was the original building designed before seismic standards were codified
(pre-1974)?
Yes
Is the building in an area of high seismicity? Yes
Does the building have non-ductile structural systems? Yes
Does the building have vertical or horizontal irregularities? Yes
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The intent of the IO Structural Performance Level for BSE-1E is:
After a design earthquake, the basic vertical and lateral force resisting systems retain nearly all of their pre-earthquake strength, and very limited damage to both structural and nonstructural components is anticipated during the design earthquake which require some minor repairs, but the critical parts of the building are habitable.
The intent of the LS Structural Performance Level for BSE-2E is:
After the earthquake, the structure has damaged components but there is some margin against either partial or total structural collapse that remains. The damaged structure is not an imminent collapse risk although some structural elements are severely damaged. The building will retain at least some of its strength against collapse and should prevent loss of human life. However, there may be injuries and the building could potentially be damaged beyond the point of economical repair.
The intent of the PR Nonstructural Performance Level for BSE-1E is:
After a design earthquake, the nonstructural components might be damaged to the extent that they cannot immediately function but are secured in place so that damages caused by falling, toppling, or breaking of utility connection is avoided.
Building access and Life Safety Systems, including doors, stairways, elevators, emergency lighting, fire alarms, and fire suppression systems, generally remain available and operable, provided that power and utility services are available.
The intent of the HR Nonstructural Performance Level for BSE-2E is:
After a design earthquake, the nonstructural components are damaged and could potentially create falling hazards, but high hazard nonstructural components as defined in Chapter 13 of ASCE 7-16, are secured to prevent falling into areas of public assembly or those falling hazards from those components could pose a risk to life safety for many people. Preservation of Egress, protection of fire suppression systems, and similar life safety issues are not addressed.
In other words, the IO Structural Performance Level and PR Nonstructural Performance
Level are meant to ensure that a building will continue to remain in operation immediately following a major earthquake. The LS Structural Peformance Level and HR
Nonstructural Peformance Level permit structural damage but ensure the structural integrity of a building after a major earthquake and that occupants are able to evacuate safely. Figure 1 graphically shows the performance objectives for a BSE-1E seismic event in red, and a BSE-2E seismic event in blue.
Figure 1: Structural Performance Level
4. Building Description
The Gymnasium is an 18,600-square-foot, single-story building originally constructed in
1961. The Gymnasium is composed of wood framing and unreinforced masonry. The building is rectangular in plan, approximately 200 feet by 111 feet, with a maximum roof height of approximately 35 feet. The building consists of locker rooms, offices, storage rooms, mechanical rooms, concessions, a gym, and other associated spaces. See Figure
2 for a Building Part Map and Appendix A for photos of the building.
The lateral system of the Gymnasium consists of a 4x tongue and groove decking diaphragm which spans between wood framed shear walls along the perimeter. The East wood framed shear wall bears upon a URM shear wall. The lateral system of the
Gymnasium lobby consists of a 4x tongue and groove decking diaphragm spanning between wood framed shear walls. The roof diaphragms are considered flexible relative to the walls that support them.
The gravity system for the Gymnasium consists of 4x tongue and groove decking which is supported by glulam arches spaced at 17-feet on center. The glulam arches span between concrete buttresses. The gravity system for the Gymnasium lobby consists of 4x tongue and groove decking supported by wood framed bearing walls. The Gymnasium ground floor level is composed of single straight sheathing supported by 2x sawn lumber joists at 12-inches on center bearing on timber beams at 5-foot on center. The timber beams bear on 6x6 timber posts. Gravity and lateral loads are transferred to the soil via spread footings.
The balcony lateral system is composed of single straight sheathing spanning between
URM shear walls along the perimeter. The balcony diaphragm is considered flexible relative to the URM walls supporting it. The balcony’s gravity system consists of single
23030.00 straight sheathing supported by timber joists spaced at 4-foot on center bearing on URM bearing walls. Gravity and lateral loads are transferred to the soil via spread footings.
After reviewing the drawings and as-built condition, the lateral force resisting system and the ASCE 41 building type is classified as W2: Wood Frames, Commercial and
Industrial and URM: Unreinforced Masonry Bearing Walls with Flexible Diaphragms.
Figure 2: Building Part Map
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5. Existing Material Test Results
An onsite investigation was performed solely to verify the as-built conditions. No materials testing was performed as part of our evaluation.
6. Site Specific Seismicity and Geologic Hazards
Using the data collected by the United States Geologic Survey, Table 2 summarizes the site specific seismicity for the location of the Gymnasium. The building is assumed to be founded on “stiff” soils of varying depths. As a result, the site soil classification is assumed to be Class “D”.
Using the ASCE 41-17 checklists, the geologic hazards that were assessed as part of this engineering evaluation include liquefaction, landslide, flood potential, and tsunami inundation, if applicable. Using the DOGAMI Oregon HazVu website, these potential hazards were evaluated. The result from each hazard HazVu evaluation is included in
Appendix F.
It was determined the site is in an area with NO geologic hazards as identified from the
DOGAMI Oregon HazVu plots. Documentation of geological hazards are in Appendix F.
7. Building Deficiencies & Recommended Strengthening Measures
Using the procedures of ASCE 41, we have identified several deficiencies in the lateral force resisting system. The ASCE 41 Tier 1 checklists used to identify the structural and nonstructural deficiencies are attached as Appendix E. Based on the identified deficiencies and building condition, we have developed a conceptual strengthening scheme (see Appendix B) for the Gymnasium.
TABLE 2 - Site Specific Seismicity
Soil Density Stiff
ASCE 7-16 Soil Classification Class D
BSE-2N Event: Short Period Spectral Acceleration (SS) 0.620
BSE-2N Event: Long Period Spectral Acceleration (S1) 0.361
BSE-2N Event: Soil Condition Amplification Factors (FV / FA) 1.937 / 1.304
BSE-1E Event: Short Period Spectral Acceleration (Sxs) 0.185
BSE-1E Event: Long Period Spectral Acceleration (Sx1) 0.132
BSE-2E Event: Short Period Spectral Acceleration (Sxs) 0.624
BSE-2E Event: Long Period Spectral Acceleration (Sx1) 0.514
FEMA 154 RVS Seismicity Zone Moderately High
ASCE 41-17 Level of Seismicity High
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The strengthening measures are recommendations intended to provide a general discussion of the potential strengthening/hardening measures likely needed for this building. However, they are conceptual and do not constitute a final engineered solution.
7.1 Structural Deficiencies & Strengthening Measures
Numerous structural deficiencies have been identified at the Gymnasium. All structural deficiencies and the strengthening measures are summarized in Table 3.
TABLE 3 – STRUCTURAL
Deficiencies & Strengthening Measures
Immediate Occupancy Performance Level
Item
Number
Component
Type Deficiency Strengthening Measure
S1 Load Path
The structure does not contain a complete, well-defined load path with structural elements and connections that serve to transfer inertial forces associated with mass of elements to the building foundation.
Provide complete load path for transfer of inertial forces to building foundation.
S2 Adjacent
Buildings
The clear distance between the building being evaluated and any adjacent building is not greater than 0.5% of the height of the shorter building in low seismicity, 1.0% in moderate seismicity, and 3% in high seismicity.
Provide seismic isolation joint to avoid pounding of the taller structure into the lower structure.
Provide all new gravity framing and lateral resisting elements as necessary to provide building separation.
S3 Mezzanines
The interior mezzanine levels are not braced independently from the main structure or are anchored to the seismic-force-resisting elements of the main structure.
Anchor mezzanine to main structure lateral force resisting system and add shear walls as required.
S4 Shear Stress
Check
The shear stress in the shear walls is more than the following values:
Structural panel sheathing - 1,000 lb./ft.; Diagonal sheathing - 700 lb./ft.; Straight sheathing and all other conditions - 100 lb./ft.
Either strengthen existing shear walls or add new lateral force resisting elements.
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TABLE 3 – STRUCTURAL Deficiencies & Strengthening Measures continued
Item
Number
Component
Type Deficiency Strengthening Measure
S5
Walls
Connected
Through
Floors
Shear walls don't have an interconnection between stories to transfer overturning and shear forces through the floor.
Interconnect all shear walls between stories.
S6 Hold-Down
Anchors
Shear walls do not have hold-down anchors attached to end studs.
Install hold-down anchors at shear walls where they are needed to resist uplift for overturning seismic loads.
S7 Wood Posts There is not a positive connection of wood posts to the foundation.
Add positive connection of wood posts to foundation.
S8 Wood Sills Wood sills are not bolted to the foundation.
Add sill bolts to foundation.
S9 Roof Chord
Continuity
Not all chord elements are continuous, regardless of changes in roof elevation.
Provide continuous chord elements.
S10 Straight
Sheathing
Straight sheathed diaphragms have aspect ratios greater than
1-to-1 in the direction being considered.
Add plywood sheathing overlay at diaphragm with nailing, blocking, and strapping as needed.
S11 Spans
All wood diaphragms with spans greater than 12 ft. do not consist of wood structural panels or diagonal sheathing.
Install plywood sheathing overlay at roof diaphragm with diaphragm blocking, strapping and collectors.
S12
Diagonally
Sheathed and
Unblocked
Diaphragms
All diagonally sheathed or unblocked wood structural panel diaphragms have horizontal spans greater than 30 ft. and aspect ratios greater than 3-to-1.
Add blocking and supplemental nailing as required to reinforce diaphragm.
S13 Wood Sill
Bolts
The existing wood sill bolt spacing is greater than 4 ft.
Add sill bolts to existing wood shear walls.
S14 Shear Stress
Check
The shear stress in the unreinforced masonry shear walls is more than 30 lb/in.2 for clay units and 70 lb/in.2 for concrete units.
Strengthen wall or add new lateral force resisting elements where required.
S15 Wall
Anchorage
Exterior concrete or masonry walls that are dependent on the diaphragm for lateral support are not anchored for out-of-plane forces at each diaphragm level with steel anchors, reinforcing dowels, or straps that are developed into the diaphragm.
Add wall anchorage connections and subdiaphragms.
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TABLE 3 – STRUCTURAL Deficiencies & Strengthening Measures continued
Item
Number
Component
Type Deficiency Strengthening Measure
S16 Transfer to
Shear Walls
Diaphragms are not connected for transfer of seismic forces to the shear walls, and the connections are not able to develop the lesser of the shear strength of walls or diaphragms.
Add in-plane connection between shear walls and diaphragm.
S17
Girder-
Column
Connection
There is no positive connection hardware between the girders and column supports.
Add positive connection of girders to column supports
S18 Proportions The height-to-thickness ratio of the shear walls is greater than 13.
Strengthen/reinforce wall for expected out-of-plane demands.
S19 Opening at
Shear Walls
Diaphragm openings immediately adjacent to the shear walls are greater than 15% of the wall length.
Strengthen diaphragm to wall connection or add diaphragm collectors.
S20 Plan
Irregularities
There is no tensile capacity to develop the strength of the diaphragm at reentrant corners or other locations of plan irregularities.
Provide diaphragm reinforcement at reentrant corners and openings.
S21 Cross Ties There are no continuous cross ties between diaphragm chords.
Add tension ties and supplemental framing for continuous cross ties.
S22 Straight
Sheathing
Straight sheathed diaphragms have aspect ratios greater than
1-to-1.
Add plywood sheathing overlay at diaphragm with nailing, blocking, and strapping as needed.
S23 Spans
All wood diaphragms with spans greater than 12 ft. do not consist of wood structural panels or diagonal sheathing.
Install plywood sheathing overlay at roof diaphragm with diaphragm blocking, strapping and collectors.
S24
Stiffness of
Wall
Anchors
Anchors of concrete or masonry walls to wood structural elements are not installed taut and stiff enough to limit the relative movement between the wall and the diaphragm before engagement of the anchors.
Install anchors to improve connection stiffness to limit relative movement between the wall and the diaphragms.
S25
Beam, Girder, and
Truss
Supports
Beams, girders, and trusses supported by unreinforced masonry walls or pilasters do not have independent secondary columns for support of vertical loads.
Add supplemental independent support columns for Beam, Girder, and Truss support.
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7.2 Nonstructural Deficiencies & Strengthening Measures
Numerous nonstructural deficiencies have been identified at the Gymnasium. All nonstructural deficiencies and the strengthening measures are summarized in Table 4.
TABLE 4 – NONSTRUCTURAL
Deficiencies & Strengthening Measures
Position Retention Performance Level
Item
Number
Component
Type Deficiency Strengthening Measure
N1 Shutoff
Valves
Piping containing hazardous material, including natural gas, does not have shutoff valves or other devices to limit spills or leaks.
Add shutoff valves or other devices to limit spills or leaks.
N2 Flexible
Couplings
Hazardous material piping, including natural gas piping, does not have flexible couplings.
Add flexible couplings to hazardous material piping and fluid and gas piping.
N3 Unreinforced
Masonry
Unreinforced masonry or hollow-clay tile partitions are not braced at a spacing of at most 10 ft. in low or moderate seismicity, or at most 6
ft. in high seismicity.
Provide HSS strongback bracing at 6 ft. maximum spacing.
N4 Drift
Rigid cementitious partitions are not detailed to accommodate the following drift ratios: in steel moment frame, concrete moment frame, and wood frame buildings, 0.02; in other buildings, 0.005.
Add HSS strongbacks at URM partition walls to accommodate drift requirements.
N5 Lens Covers Lens covers are not attached to the light fixture with safety devices.
Attach all lens covers on light fixtures with safety devices.
N6 Tall Narrow
Contents
Contents more than 6 ft. high with a height-to-depth ratio greater than 3-to-1 are not anchored to the structure or to each other.
Brace and/or anchor all contents more than 6 ft. high to the structure or to each other.
N7 Fall-Prone
Equipment
Mechanical and electrical equipment weighing more than 20
lb. whose center of mass is more than 4 ft. above the adjacent floor level, and which is not in-line equipment, is not braced.
Brace all mechanical and electrical equipment weighing more than 20 lb. whose center of mass is more than 4 ft.
above the adjacent floor level.
N8 Tall Narrow
Equipment
Equipment more than 6 ft. high with a height-to-depth or height-to-width ratio greater than 3-to-1 is not anchored to the floor slab or adjacent structural walls.
Cabinets and Lockers more than 6 ft. high or with a height-to-depth ratio exceeding 3:1 are to be anchored to ground.
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TABLE 4 – NONSTRUCTURAL Deficiencies & Strengthening Measures continued
Item
Number
Component
Type Deficiency Strengthening Measure
N9 Flexible
Couplings
Fluid and gas piping does not have flexible couplings.
Add flexible couplings to fluid and gas piping.
8. Construction Cost Estimate
An engineer’s opinion of probable cost has been prepared based on the developed seismic strengthening scheme (see Appendix B) and is attached as Appendix C. The cost estimate addresses all seismic strengthening required and includes all construction costs, contingencies and necessary soft costs required to complete the scope of work. A summary of the cost estimate is provided in Table 5.
TABLE 5 – Cost Estimate Summary
Construction Category Cost Estimate
Engineering $341,991
Construction Management $47,999
Construction $1,716,626
Relocation $59,999
Contingency $333,325
Total $2,499,940
Total Area 18,600 Square Feet
$/Square Feet $134.41
9. Benefit Cost Analysis
The benefit cost analysis (BCA) is performed using the BCA spreadsheet provided by the
Oregon Business Development Department-Infrastructure Finance Authority (OBDD-IFA) as required by the SRGP (Seismic Rehabilitation Grant Program). The BCA tool considers the net present value of costs associated with damage to the building and its contents, displacements costs, loss of functionality costs, and casualties. Default building data and fragility curve information is provided in the BCA tool.
The building database in the BCA tool breaks the Pleasant Hill High School into 10 different building parts. The Pleasant Hill High School Gymnasium is labeled Building Part B. Building
Parts A, C, D, E, F, G, H, I, and J are not within the scope of this seismic evaluation. Pleasant
Hill School District provided only the occupancy and budget information for Building Part
B. Therefore, on the Main page of the BCA tool (see Appendix D), the occupancy and budget percentages of Building Part B are both set to be 100% and 0% was assigned to
23030.00 the other building parts. This is to avoid having the occupancy and budget provided solely for Building Part B be allocated to Building Parts A, C, D, E, F, G, H, I, and J.
Please note, Building Part B consists of building type W2 and URM. However, since W2 is the primary lateral force resisting system, the BCA calculations are based on W2 building type.
The BCA score for this project is 0.682. Although the Gymnasium received a BCA score less than 1.0, we believe it is still a strong candidate for seismic strengthening and should be considered for grant funding. The BCA analysis performed using the OBDD-IFA BCA spreadsheet tool does not accurately capture the cost to the building if it is out-of-service after a major seismic event and its importance to the community.
The grant application outlines the additional benefits and the potential costs to the community if the building is excessively damaged and not ready for re-occupancy after a major seismic event.
10. Rapid Visual Screening
The Department of Geology and Mineral Industries (DOGAMI) completed many Rapid
Visual Screening (RVS) assessments for public facilities throughout Oregon. However, for the purpose of this report, a new RVS report was created to align with this seismic evaluation. Attached in Appendix F is the RVS report created using the FEMA P-154 Data
Collection Form for the Gymnasium.
Note, only the RVS report for Building Part B has been included since the other building parts are out of the project scope and have no impact on the BCA calculations or grant application.
11. Limitations
The opinions and recommendations presented in this report were developed with the care commonly used as the state of practice of the profession. No other warranties are included, either expressed or implied, as to the professional advice included in this report.
This report has been prepared for Pleasant Hill High School Gymnasium and is used solely in its evaluation of the seismic safety of the building included herein. This report has not been prepared for use by other parties and may not contain sufficient information for purposes of other parties or uses. If you have any comments or questions regarding this evaluation, please contact us.
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12. Certification Statement
WRK Engineers has reviewed the Pleasant Hill High School Gymnasium, noted the deficiencies in the Tier 1 checklists, developed seismic retrofit solutions to rectify the deficiencies, and a cost estimate for the project. The design engineer certifies the retrofit scope of work includes strengthening measures of all the structural and nonstructural deficiencies identified in the report and all items required to perform the work. The design engineer certifies the cost estimate includes all the retrofit’s scope of work elements.
Brian Knight, PE, SE
Appendix A
BUILDING PHOTOS
Image 1: Southeast Elevation
Image 2: Northeast Elevation
Image 3: Northwest Elevation
Image 4: Southwest Elevation
Image 5: Balcony Framing Over Locker Room
Image 6: Gymnasium
Image 7: Hallway
Image 8: Exterior Canopy Framing
Appendix B
CONCEPTUAL SEISMIC STRENGTHENING SCHEME
G1
PLEASANT HILL HIGH SCHOOL
GYMNASIUM SEISMIC REHABILITATION
GRANT STRENGTHENING CONCEPTS
PROJECT NARRATIVE
THE INTENT OF THESE DRAWINGS IS TO ILLUSTRATE THE SCHEMATIC SEISMIC REHABILITATION TASKS TO RECTIFY THE LISTED SEISMIC AND NONSTRUCTURAL DEFICIENCIES. THESE SCHEMATIC DRAWINGS
HAVE BEEN PREPARED USING THE CURRENT OREGON STRUCTURAL SPECIALTY CODE (OSSC) AND
ASCE 41 (SEISMIC REHABILITATION OF EXISTING BUILDINGS) STANDARD.
THE TARGET FOR REHABILITATION IS TO IMMEDIATE OCCUPANCY (IO) STRUCTURAL PERFORMANCE LEVEL AND A POSITION RETENTION (PR) NONSTRUCTURAL PERFORMANCE LEVEL AT THE BSE-1E
SEISMIC EVENT AND THE LIFE SAFETY (LS) STRUCTURAL PERFORMANCE LEVEL AND HAZARDS
REDUCED (HR) NONSTRUCTURAL PERFORMANCE LEVEL AT THE BSE-2E SEISMIC EVENT.
THE (IO) STRUCTURAL PERFORMANCE LEVEL MEANS THAT AFTER A DESIGN EARTHQUAKE, THE BASIC VERTICAL AND LATERAL FORCE RESISTING SYSTEMS RETAIN NEARLY ALL OF THEIR PRE-EARTHQUAKE STRENGTH AND STIFFNESS. VERY LIMITED DAMAGE TO BOTH THE STRUCTURAL AND NONSTRUCTURAL
COMPONENTS IS ANTICIPATED DURING THE DESIGN EARTHQUAKE WHICH REQUIRE SOME MINOR
REPAIRS, BUT MAY NOT BE REQUIRED PRIOR TO REOCCUPANCY. THE RISK OF LIFE THREATENING
INJURY AS A RESULT OF STRUCTURAL DAMAGE IS VERY LOW.
PROJECT INCLUDES SEISMIC REHABILITATION FOR THE ENTIRE GYMNASIUM BUILDING.
STRUCTURAL DEFICIENCIES
S1. THE STRUCTURE DOES NOT CONTAIN A COMPLETE, WELL-DEFINED LOAD PATH, INCLUDING
STRUCTURAL ELEMENTS AND CONNECTIONS, THAT SERVES TO TRANSFER THE INERTIAL FORCES
ASSOCIATED WITH THE MASS OF ALL ELEMENTS OF THE BUILDING TO THE FOUNDATION.
S2. THE CLEARANCE BETWEEN THE BUILDING BEING EVALUATED AND ANY ADJACENT BUILDING IS LESS THAN 0.5% OF THE HEIGHT OF THE SHORTER BUILDING IN LOW SEISMICITY, 1.0% IN MODERATE
SEISMICITY, AND 3.0% IN HIGH SEISMICITY.
S3. INTERIOR MEZZANINE LEVELS ARE NOT BRACED INDEPENDENTLY FROM THE MAIN STRUCTURE OR
ANCHORED TO THE SEISMIC-FORCE-RESISTING ELEMENTS.
S4. WOOD FRAMED SHEAR WALLS DO NOT HAVE SUFFICIENT CAPACITY FOR THE SEISMIC DEMANDS.
S5. WOOD FRAMED SHEAR WALLS ARE NOT CONNECTED BETWEEN STORIES TO TRANSFER
OVERTURNING AND SHEAR FORCES.
S6. NOT ALL WOOD FRAMED SHEAR WALLS HAVE HOLD-DOWN ANCHORS ATTACHED TO THE END
STUDS CONSTRUCTED IN ACCORDANCE WITH ACCEPTABLE CONSTRUCTION PRACTICES.
S7. THERE ARE NOT POSITIVE CONNECTIONS FROM WOOD POSTS TO THE FOUNDATION.
S8. NOT ALL WOOD SILLS ARE BOLTED TO THE FOUNDATION.
S9. NOT ALL ROOF CHORDS ARE CONTINUOUS.
S10. STRAIGHT-SHEATHED DIAPHRAGMS OVER WOOD FRAMED SHEAR WALLS WITH ASPECT RATIOS
GREATER THAN 1-TO-1 ARE PRESENT.
S11. WOOD DIAPHRAGMS OVER WOOD FRAMED SHEAR WALLS WITH SPANS GREATER THAN 12-FEET
CONSISTING OF SHEATHING OTHER THAN WOOD STRUCTURAL PANELS ARE PRESENT.
S12. NOT ALL DIAGONALLY SHEATHED OR UNBLOCKED DIAPHRAGMS OVER WOOD FRAMED SHEAR
WALLS HAVE HORIZONTAL SPANS LESS THAN 30-FEET AND ASPECT RATIOS LESS THAN OR EQUAL
TO 3-TO-1.
S13. SILL BOLTS ARE SPACED GREATER THAN 4-FEET ON CENTER.
S14. URM SHEAR WALLS HAVE INSUFFICIENT CAPACITY FOR THE GIVEN SHEAR WALL DEMANDS.
S15. EXTERIOR CONCRETE OR MASONRY WALLS THAT ARE DEPENDENT ON THE DIAPHRAGM FOR
LATERAL SUPPORT ARE NOT ANCHORED FOR OUT-OF-PLANE FORCES AT EACH DIAPHRAGM LEVEL.
S16. DIAPHRAGMS ARE NOT CONNECTED FOR TRANSFER OF SEISMIC FORCES TO THE URM SHEAR
WALLS.
NONSTRUCTURAL DEFICIENCIES
N1. PIPING CONTAINING HAZARDOUS MATERIALS, INCLUDING NATURAL GAS, DO NOT HAVE SHUTOFF
VALVES OR OTHER DEVICES TO LIMIT SPILLS AND LEAKS.
N2. HAZARDOUS MATERIAL DUCTWORK AND PIPING, INCLUDING NATURAL GAS PIPING, DO NOT HAVE
FLEXIBLE COUPLINGS.
N3. URM OR HOLLOW CLAY TILE PARTITIONS ARE NOT BRACED AT A SPACING OF AT MOST 6-FEET.
N4. RIGID CEMENTITIOUS PARTITIONS ARE NOT DETAILED TO ACCOMMODATE EXPECTED DRIFT RATIOS.
N5. LENS COVERS ON LIGHTS ARE NOT ATTACHED WITH SAFETY DEVICES.
N6. CONTENTS MORE THAN 6-FEET HIGH WITH A HEIGHT-TO-DEPTH OR HEIGHT-TO-WIDTH GREATER
THAN 3-TO-1 ARE NOT ANCHORED TO THE STRUCTURE OR TO EACH OTHER.
N7. EQUIPMENT WEIGHING MORE THAN 20-POUNDS WITH A CENTER OF MASS MORE THAN 4-FEET
ABOVE THE ADJACENT FLOOR LEVEL ARE NOT BRACED.
N8. EQUIPMENT MORE THAN 6-FEET HIGH WITH A HEIGHT-TO-DEPTH OR HEIGHT-TO-WIDTH GREATER
THAN 3-TO-1 ARE NOT ANCHORED TO THE FLOOR SLAB OR THE ADJACENT STRUCTURAL WALLS.
N9. FLUID AND GAS PIPING DOES NOT HAVE FLEXIBLE COUPLINGS.
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STATE MAP3
SITE MAP/BUILDING PARTS IDENTIFICATION1
NORTH
NOTE: ONLY PART B IN SCOPE
VICINITY MAP2
NORTH
COVER SHEET
SHEET
ID
G1
SHEET TITLE
SHEET INDEX
S1 FOUNDATION STRENGTHENING PLAN
S2 BALCONY AND LOW ROOF STRENGTHENING PLAN
PROJECT LOCATION
ALL NONSTRUCTURAL DEFICIENCIES WILL BE MITIGATED AS SHOWN
IN TABLE 4 IN THIS REPORT UNLESS SPECIFICALLY NOTED
OTHERWISE ON THE CONCEPTUAL STRENGTHENING SCHEME
DRAWINGS.
S3 ROOF STRENGTHENING PLAN
PROJECT LOCATION
S4 BUILDING ELEVATION
NORTH
STRUCTURAL DEFICIENCIES
S17. THERE IS NOT A POSITIVE CONNECTION BETWEEN THE GIRDERS AND COLUMN SUPPORTS.
S18. THE HEIGHT-TO-THICKNESS RATIO OF THE URM SHEAR WALLS AT EACH STORY IS LESS THAN 1:3.
S19. DIAPHRAGM OPENINGS IMMEDIATELY ADJACENT TO THE URM SHEAR WALLS ARE GREATER THAN
15% OF THE WALL LENGTH.
S20. THERE IS NOT TENSILE CAPACITY TO DEVELOP THE STRENGTH OF THE DIAPHRAGM AT REENTRANT
CORNERS OR OTHER LOCATIONS.
S21. THERE ARE NOT CONTINUOUS CROSS TIES BETWEEN DIAPHRAGM CHORDS.
S22. STRAIGHT-SHEATHED DIAPHRAGMS OVER URM WALLS WITH ASPECT RATIOS GREATER THAN 1-TO-1
ARE PRESENT.
S23. WOOD DIAPHRAGMS OVER URM WALLS WITH SPANS GREATER THAN 12-FEET CONSISTING OF
SHEATHING OTHER THAN WOOD STRUCTURAL PANELS AND DIAGONAL SHEATHING ARE PRESENT.
S24. ANCHORS OF CONCRETE OR MASONRY WALLS TO WOOD STRUCTURAL ELEMENTS ARE NOT
INSTALLED TAUT AND ARE STIFF ENOUGH TO LIMIT THE RELATIVE MOVEMENT BETWEEN THE WALL
AND THE DIAPHRAGM TO NO GREATER THAN 1/8-INCH BEFORE ENGAGEMENT OF THE ANCHORS.
S25. BEAMS, GIRDERS, AND TRUSSES SUPPORTED BY URM WALLS OR PILASTERS DO NOT HAVE
INDEPENDENT SECONDARY COLUMNS FOR SUPPORT OF VERTICAL LOADS.
A
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S1
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00FOUNDATION STRENGTHENING PLAN1
NORTH
SEISMIC STRENGTHENING KEYED NOTES:
1 DEMO (E) FLOOR SLAB AND WALL FINISHES AND
ADD CONCRETE SHEAR WALL AND FOUNDATION.
REPAIR AND REPLACE FLOOR AND WALL FINISHES
AS REQUIRED. (S1, S4, S5, S6, S8, S13, S14)
ADD 5x5x1/4 HSS STRONGBACKS AT 6'-0" OC, OR
AS SHOWN, FOR OUT-OF-PLANE WALL BRACING
OF URM SHEAR WALLS (19 TOTAL). PROVIDE
4x4x1/4 HSS AT 12'-0" OC, OR AS SHOWN, TO ACT
AS INDEPENDENT SECONDARY COLUMNS FOR
URM BEARING WALLS (7 TOTAL). USE HSS10x6x1/4
BEAMS SPANNING BETWEEN INDEPENDENT
SECONDARY COLUMNS TO ATTACH (E) JOISTS
AND BEAMS TO SECONDARY COLUMNS. (S17, S18,
S25)
PROVIDE SEISMIC ISOLATION JOINT TO AVOID
POUNDING OF TALLER STRUCTURE INTO THE
LOWER STRUCTURE. PROVIDE ALL NEW GRAVITY
FRAMING SUPPORT AND LATERAL RESISTING
ELEMENTS AS NECESSARY TO PROVIDE BUILDING
SEPARATION. ADD NEW WOOD STUD BEARING/
PLYWOOD SHEAR WALLS AND POSTS/BEAMS TO
SUPPORT (E) FRAMING AND RESIST LATERAL
LOADS AS REQUIRED. (S2)
PROVIDE POSITIVE CONNECTION BETWEEN WOOD
POSTS AND FOUNDATION. ADDITIONALLY PROVIDE
HSS 8x8x1/4 STRONGBACK AT EACH POST TO
BRACE WOOD FRAMED WALL OUT-OF-PLANE.
DEMO AND REPLACE WOOD SIDING AS REQUIRED.
(S1, S7)
DEMO (E) SLAB-ON-GRADE AND SIDING AND ADD
CONCRETE SHEAR WALL AND FOUNDATION.
REPAIR AND REPLACE FLOOR AND WALL FINISHES
AS REQUIRED. (S1, S4, S5, S6, S7, S8, S13)
DEMO FLOORING, CEILING, AND INTERIOR WALL
FINISHES AS REQUIRED. PROVIDE HSS 8X8X1/4 IN
ORDER TO BRACE ABOVE WOOD FRAMED WALL
OUT-OF-PLANE. PROVIDE A HSS10X6X1/4 BEAM AT
BALCONY LEVEL IN ORDER TO UTILIZE THE HSS
STRONGBACKS AS INDEPENDENT SECONDARY
SUPPORTS AT THE BALCONY LEVEL (S1, S25)
NOT IN
SCOPE
NOT IN
SCOPE
NOT IN
SCOPE
TYP
SCALE: NTS
S4
NOT IN
SCOPE
URM WALL IS ADEQUATE FOR
EXPECTED BALCONY LOADS
URM WALL IS ADEQUATE FOR
EXPECTED BALCONY LOADS
URM WALL IS NOT SUFFICIENT FOR
SEE KEYED NOTE 1
S3
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0ROOF STRENGTHENING PLAN
NORTH
1 DEMO (E) BUILT-UP ROOFING AND ADD 1/2"
PLYWOOD SHEATHING W/ 10d NAILS AT 6" OC AT
PANEL EDGES AND 12" OC IN THE FIELD. REPLACE
ROOFING AFTER WORK IS COMPLETE. (S10, S11,
S12, S22, S23)
DEMO (E) CEILING (WHERE OCCURS) TO ADD
IN-PLANE CONNECTIONS BETWEEN DIAPHRAGM
AND SHEAR WALL. REPAIR CEILING AFTER WORK
IS COMPLETED. (S1, S3, S16).
DEMO (E) CEILING (WHERE OCCURS) TO ADD
OUT-OF-PLANE ANCHORS BETWEEN DIAPHRAGM
AND URM WALLS AT 8'-0" OC, OR AS SHOWN.
REPAIR CEILING AFTER WORK IS COMPLETED.
(S15, S24)
INDICATES SEISMIC ISOLATION JOINT. SEE S1 FOR
NEW SUPPORT. PROVIDE ROOFING SEISMIC JOINT
COVER AND REPAIR ROOFING AS REQUIRED. (S2)
ADD SUBDIAPHRAGM TIE WHERE SHOWN. (S15,
S21, S24)
DEMO (E) CEILING (WHERE OCCURS) TO ADD NEW
1/2" PLYWOOD SHEATHING AND BLOCKING WITH
10d NAILS AT 6" OC TO THE UNDERSIDE OF
BALCONY. REPLACE CEILING FINISHES AFTER
WORK IS COMPLETE. (S23)
ADD STL STRAPPING TO PROVIDE CONTINUOUS
COLLECTOR. (S1, S9, S19, S20)
ADD STL STRAPPING TO UNDERSIDE OF (E)
BALCONY TO PROVIDE A CONTINUOUS
COLLECTOR. (S1, S9, S19, S20)
NEW CONCRETE SHEAR WALL BELOW, SEE KEYED
NOTES 1 AND 5 ON S1. (S1, S4, S5, S8, S13, S14)
ADD HORIZONTAL ROD BRACING TO CONNECT
CANOPY TO LATERAL FORCE RESISTING
ELEMENTS. (S1)
PROVIDE SPLICE PLATE AT SECONDARY COLUMN
SUPPORTS. (S25)
ADD A STEEL COLLECTOR TO TRANSFER SEISMIC
FORCES INTO CONCRETE MOMENT FRAME. (S1)
NEW BLOCKING AND STEEL STRAPPING, SEE
KEYED NOTE 2 ON SHEET S4. (S1)
ADD BEAM SPLICES AT CANOPY TO PROVIDE
CONTINUOUS ROOF CHORDS. (S1, S9, S21)
NOT IN
SCOPE
NOT IN
SCOPE
NOT IN
SCOPE
OPEN T
O B
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S2
BALCONY AND LOW ROOF STRENGTHENING PLAN
S4
TYP
SCALE: NTS
12 13
TYP
NOT IN
SCOPE
TYP
SEISMIC STRENGTHENING KEYED NOTES:
S3
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NORTH
1 DEMO (E) BUILT-UP ROOFING AND (E) SHEATHING.
ADD 1/2" PLYWOOD SHEATHING W/ 10d NAILS AT 6"
OC AT PANEL EDGES AND 12" OC IN THE FIELD
(S10, S11, S12, S22, S23)
ADD IN-PLANE CONNECTIONS BETWEEN THE
ROOF DIAPHRAGM AND LATERAL FORCE
RESISTING ELEMENTS. SEE KEYED NOTE 2 ON S4.
(S1)
DEMO (E) CEILING (WHERE OCCURS) TO ADD
IN-PLANE CONNECTIONS BETWEEN DIAPHRAGM
AND LATERAL FORCE RESISTING ELEMENTS.
REPAIR CEILING AFTER WORK IS COMPLETED (S1,
S15).
S4
SCALE: NTS
S4
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00BUILDING ELEVATION1
NORTH
1 NEW PLYWOOD SHEATHING, SEE KEYED NOTE 1
ON S3. (S10, S11, S12, S22, S23)
PROVIDE BLOCKING BETWEEN GLULAM ARCHES
AND STEEL STRAPPING TO CREATE A
CONTINUOUS COLLECTOR ELEMENT. (S1)
NEW CONCRETE SHEARWALL AND CONCRETE
FOUNDATION, SEE KEYED NOTE 1 ON SHEET S1.
(S1, S4, S5, S8, S13, S14)
SCALE: NTS
2 2
3 3
Appendix D
BENEFIT COST ANALYSIS WORKSHEET
Entity:
Point of Contact
Telephone:
E-Mail:
BCA File Name: BCA Date: 9/27/2023
Building Name:
Site ID:
Facility Use:
Is the Building in the Oregon BCA Tool Database: Yes or No? No
User-Defined Database
10 Not Listed
Unique Building
ID Number
Building Part
Square Footage
Percent of
Total SF
Percent of
Occupancy
Percent of
Operating
Budget
Building Part
Being
Retrofitted?
Lane-sch01AA 10,269 8.03% No
Lane-sch01AB 18,600 14.54% 100.00% 100.00% Yes
Lane-sch01AC 12,118 9.47% No
Lane-sch01AD 3,053 2.39% No
Lane-sch01AE 4,973 3.89% No
Lane-sch01AF 54,661 42.72% No
Lane-sch01AG 12,385 9.68% No
Lane-sch01AH 5,289 4.13% No
Lane-sch01AI 4,517 3.53% No
Lane-sch01AJ 2,089 1.63% No
Totals: 127,954 100.00% 100.00% 100.00%
Seismic Retrofit Cost Estimate per SRGP Application:
How Many Structurally Different Building Parts Are There?
$2,499,940
Oregon Seismic Rehabilitation Grant Application: Benefit-Cost Analysis
Pleasant Hill School District
School
Lane-sch01A
Jim Crist
541-746-9646 jcrist@pleasanthill.k12.or.us
Pleasant Hill High School
Pleasant Hill SRGP BCA Tool 2023
Pleasant Hill High School, Sheet: Main Page 1 mailto:JQP@galaxy.net mailto:JQP@galaxy.net mailto:JQP@galaxy.net mailto:JQP@galaxy.net mailto:JQP@galaxy.net
Building Part
Lane-sch01AA
Lane-sch01AB $484,590
Lane-sch01AC $121,148
Lane-sch01AD $50,782
Lane-sch01AE $42,662
Lane-sch01AF $1,005,511
Lane-sch01AG $1,704,692
Lane-sch01AH
Lane-sch01AI
Lane-sch01AJ
Total Benefits
Total Cost
Benefit-Cost
Ratio
Pleasant Hill High School
0.682
$1,704,692
$2,499,940
Total
Casualties
Loss of Function Costs
Building Damage
Contents Damage
Benefits by Category
Avoided Damages and Losses
Displacement Costs
Benefit-Cost Analysis: Summary Results
$1,704,692
Benefits
Pleasant Hill High School, Sheet: Main Page 2
Number of
Months:
Day of Week Time of
Day
Hours per
Day
Average
Employees in Building
Calculated
24/7/365
Occupancy
Day of Week Time of
Day
Hours per
Day
Average
Employees in Building
Calculated
24/7/365
Occupancy
Monday - Friday Day 6 4 0.594 Monday - Friday Day 2 1 0.010
Monday - Friday Evening 2 1 0.049 Monday - Friday Evening
Monday - Friday Night Monday - Friday Night
Saturday Day Saturday Day
Saturday Evening Saturday Evening
Saturday Night Saturday Night
Sunday Day Sunday Day
Sunday Evening Sunday Evening
Sunday Night Sunday Night
Subtotal: 0.643 Subtotal: 0.010
Number of
Months:
Day of Week
Average
Time in
Building
(Minutes per
Visitor)
Calculated
24/7/365
Occupancy
Day of Week
Average
Time in
Building
(Minutes per
Visitor)
Calculated
24/7/365
Occupancy
Monday - Friday Monday - Friday
Saturday Saturday
Sunday Sunday
Subtotal: Subtotal:
50 25
6 0.5
175 60
5.993 0.086
Course
Class
Duration
(hours)
Number of
Class
Periods per Week
Average
Number of
Students per Class
Calculated
24/7/365
Occupancy
Course
Class
Duration
(hours)
Number of
Class
Periods per Week
Average
Number of
Students per Class
Calculated
24/7/365
Occupancy
1 Hr. Courses 1 19 42 1 Hr. Courses 1
1.5 Hr. Courses 1.5 1.5 Hr. Courses 1.5
2 Hr. Courses 2 2 Hr. Courses 2
3 Hr. Courses 3 3 Hr. Courses 3
Other N/A Other N/A
Other N/A Other N/A
Subtotal: Subtotal:
Calculated 24/7/365 Occupancy:
College Students: Academic Year College Students: Summer School
Number of Weeks per Year of Classes: Number of Weeks per Year of Classes:
Average Daily Number of Students: Average Daily Number of Students:
Average Number of
Visitors Per Day
For benefit-cost analysis, the average occupancy on a 24/7/365 basis is used for casualty calculations.
Enter data below ONLY for the occupancy categories applicable to this building - all other green cell entries should be left blank.
There are entries below for: employees, visitors, students, meetings or special events and patients.
Occupancy Data
NOTE: for buildings with similar occupancies each month, complete the tables on the left side only.
NOTE: For buildings with different summer occupancies, complete the tables both on the left and right sides. If this does not apply, enter "0" for number of summer months
Employees: 12 Months per Year or Academic Year for Schools Employees: Summer Months
Hours per Day: Hours per Day:
Visitors: 12 Months per Year or Academic Year for Schools Visitors: Summer Months
Average Number of
Visitors Per Day
K-12 Students: Academic Year K-12 Students: Summer School
Days per Year: Days per Year:
Calculated 24/7/365 Occupancy:
Pleasant Hill High School, Sheet: Occupancy Page 3
Occupancy Data
Event Events per Year
People per
Event
Average
Time spent at Event
(hours per person)
Calculated
24/7/365
Occupancy
Volleyball 20 100 2 0.457
Girls Basketball 20 150 3 1.027
Boys Basketball 20 200 3 1.370
Band 3 150 3 0.154
Youth Basketball 4 200 4 0.365
Wrestling 4 300 6 0.822
Veteran's Day 1 150 1.5 0.026
Career Fair 1 600 1 0.068
Volunteers Coaches 175 24 2 0.959
Subtotal: 5.248
Day of Week
Average
Time in
Building
(Hours per person)
Calculated
24/7/365
Occupancy
Monday - Friday
Saturday
Sunday
Meetings, Sports Events etc.
Patients
Total Number of In-Patient Beds:
Average Percentage Occupancy
Average Number of
Out-Patients per Day
In-Patients:
Out-Patients:
Total Patients:
Average Daily Number of In-Patients
Pleasant Hill High School, Sheet: Occupancy Page 4
Occupancy Data
Meetings & Special Events 5.248 N/A
Avg 24/7/365 Occupancy: 11.980
Patients N/A
Subtotals: 11.885 0.096
Visitors
Students: K-12 5.993 0.086
Students: College
Employees 0.643 0.010
SUMMARY OCCUPANCY DATA:
Average 24/7/365 Occupancy
Occupancy Category 12 Months or
Academic Year Summer
Pleasant Hill High School, Sheet: Occupancy Page 5
Visitors: Number Per Day
DATA DOCUMENTATION: OCCUPANCY
Provide brief documentation below and/or references to other documents included with your application
(with page number), for the sources of the occupancy data and estimates.
Employees: Numbers
Employees: Hours Per Day
Visitors: Average Time in
Building
K-12 Students: Number
K-12 Students: Hours Per Day
K-12 Students: Days Per Year
Additional Comments
Re: above Occupancy Data
College Student Occupancy
Data
Pleasant Hill High School, Sheet: Occupancy Page 6
Number of Patient
Beds
Meetings, Sports Events and Other Special Events
Overview Statement Re:
Sources of Special
Events Occupancy
Estimates
Volunteer Coaches average five 2-hour shifts throughout the school year (175 days).
It is NOT necessary to provide separate documentation for every special event listed. Rather, provide an
Overview Statement of the sources of special event occupancy estimates.
Provide specific documentation for high occupancy events or very frequent events with high Calculated
24/7/365 Occupancy, especially for occupancies that appear "unusual" or potentially
"out of bounds."
NOTES:
Average Time in
Building for
Out-Patients
Average Daily Number of In-Patients
Average Daily Number of Out-Patients
Hospital Patient Data
Pleasant Hill High School, Sheet: Occupancy Page 7 of FTEs
Average
Annual
Salary per
Employee
Total Benefits as
Percent of Salary
Annual Salary and Benefits
1 PE Teacher / Licensed 3 $61,868 46.00% $270,982
2 Educational Assistant /Classified 1 $36,000 46.00% $52,560
3 Coach 12 $4,500 100.00% $108,000
4 $0
5 $0
6 $0
7 $0
8 $0
9 $0
10 $0
Total Number of FTEs: 16.00 Subtotal: $431,542 FTEs: Full time equivalents
Annual Cost
$10,000
$15,000
$24,000
$8,300
$0
$0
$0
$4,478,390
Subtotal: $4,535,690
$4,967,232
Building Maintenance
Percent of District Office/Headquarters Annual
Operating Budget Attributed to This Building:
If rent is zero (building owned), a proxy rent is calculated automatically, based on the value of the building:
Insurance
Rent
Average Annual Capital Goods
Total Building Annual Operating Budget:
OTHER: specify below
Utilities
Annual Operating Budget for this Facility
Employees:
Classification
Other Building Expenses
Category
Supplies
Pleasant Hill High School, Sheet: Budget Page 8
Annual Operating Budget for this Facility of FTEs
Average
Annual
Salary per
Employee
Total Benefits as
Percent of Salary
Annual Salary and Benefits
1 $0
2 $0
3 $0
4 $0
5 $0
6 $0
7 $0
8 $0
9 $0
10 $0
Total Number of FTEs: 0.00 Subtotal: $0
Annual Cost
Rent
$0
Subtotal: $0
$0
Category
Classification
District Office/Headquarters Building Expenses
For entities with multiple facilities, a fraction of the operating budget for a District Office of Headquarters building may be attributed to the building being retrofitted. That is, the annual operating budget for the building above may include part of the operating budget for the District Office or Headquarters Building.
If so, complete the following tables:
District Office/Headquarters Building Employees
Enter replacement value of building:
If rent is zero (building owned), a proxy rent is calculated
Supplies
Total Annual Operating Budget for District Office/Headquarters Building:
Building maintenance
Utilities
Insurance
Average Annual Capital Goods
OTHER: specify below
Pleasant Hill High School, Sheet: Budget Page 9
Percent of District
Office or Headquarters
Annual Operating
Budget Attributed to the Facility
Operating Budget by
Categories
DOCUMENTATION: ANNUAL OPERATING BUDGET
The Annual Operating Budget is used as a "proxy" for the value of services provided from a building and is used to count the benefits of avoiding loss of service in future earthquake events.
NOTE:
Pleasant Hill High School, Sheet: Budget Page 10
Building Name:
Building ID:
Building Part Name / Description:
Evaluation for Building Part A
Region of Seismicity
PGA Ground Motion (g) 0.421
0.277
0.178
0.084
Spectral Accelerations (g) 0.864
0.616
0.371
0.235
Data Entry Item User Entered Values Default Values Used for BCA
County Lane Lane
Decimal Latitude 43.95756 43.95756
Decimal Longitude 122.91598 122.91598
Soil Type D D
Primary Structure Type (FEMA 154) W2 W2
Number of Stories 1 1
Year Built 1961 1961
Pre-Code No No
Post-Benchmark No No
Existing Severe Vertical Irregularity No No
Existing Moderate Vertical Irregularity No No
Existing Plan Irregularity No No
Severe Vertical Irregularity is Resolved N/A N/A
Moderate Vertical Irregularity is Resolved N/A N/A
Plan Irregularity is Resolved N/A N/A
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