Division of the State Architect | State of California
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IMPORTANT: This form is only a summary list of structural tests and some of the special inspections required for the project. Generally, the structural tests and special inspections noted on this form are those that will be performed by the Geotechnical Engineer of Record, Laboratory of Record, or Special Inspector. The actual complete test and inspection program must be performed as detailed on the DSA approved documents. The appendix at the bottom of this form identifies work NOT subject to DSA requirements for special inspection or structural testing. The project inspector is responsible for providing inspection of all facets of construction, including but not limited to, special inspections not listed on this form such as structural wood framing, high-load wood diaphragms, cold-formed steel framing, anchorage of non-structural components, etc., per Title 24, Part 2, Chapter 17A.
**NOTE: Undefined section and table references found in this document are from the CBC, or California Building Code.
Select Your Category
Table 1705A.6, Table 1705A.7, Table 1705A.8
Select Soils Details
S1. GENERAL
Test or Special Inspection
Type
Performed By
Code References and Notes
a. Verify that: • Site has been prepared properly prior to placement of controlled fill and/or excavations for foundations. • Foundation excavations are extended to proper depth and have reached proper material. • Materials below footings are adequate to achieve the design bearing capacity.
*By geotechnical engineer or his or her qualified representative (See Appendix (end of this form) for exemptions).
a. Verify that: • Site has been prepared properly prior to placement of controlled fill and/or excavations for foundations. • Foundation excavations are extended to proper depth and have reached proper material. • Materials below footings must not contain loose material, mud, organic silt, organic clays, or peat.
Refer to specific items identified in the Appendix listing exemptions for limitations. Placement of controlled fill exceeding 12'' depth under foundations and/or within the building envelope is not permitted without a geotechnical report.
S2. SOIL COMPACTION AND FILL
a. Perform classification and testing of fill materials.
Test
LOR*
* Under the supervision of the geotechnical engineer.
b. Verify use of proper materials, densities and inspect lift thicknesses, placement and compaction during placement of fill.
*By geotechnical engineer or his or her qualified representative. (Refer to specific items identified in the Appendix (end of this form) for exemptions where soils SI and testing may be conducted under the supervision of a geotechnical engineer or LOR's engineering manager. In such cases, the LOR's form DSA 291 shall satisfy the soil SI and test reporting requirements for the exempt items).
c. Compaction Testing.
*Under the supervision of the geotechnical engineer. (Refer to specific items identified in the Appendix (end of this form) for exemptions where soil testing may be conducted under the supervision of a geotechnical engineer or LOR's engineering manager. In such cases, the LOR's form DSA 291 shall satisfy the soil test reporting requirements for the exempt items).
* Under the supervision of a geotechnical engineer or LOR's engineering manager. Refer to specific items identified in the end of this form listing exemptions for limitations.
S3. DRIVEN DEEP FOUNDATIONS (PILES)
a. Verify pile materials, sizes and lengths comply with the requirements.
b. Determine capacities of test piles and conduct additional load tests as required.
c. Inspect driving operations and maintain complete and accurate records for each pile.
d. Verify locations of piles and their plumbness, confirm type and size of hammer, record number of blows per foot of penetration, determine required penetrations to achieve design capacity, record tip and butt elevations and record any pile damage.
e. Steel piles.
f. Concrete piles and concrete filled piles.
g. For specialty piles, perform additional inspections as determined by the registered design professional in responsible charge.
The text will appear here
S4. CAST-IN-PLACE DEEP FOUNDATIONS (PIERS)
a. Inspect drilling operations and maintain complete and accurate records for each pier.
*By geotechnical engineer or his or her qualified representative. (See Appendix (end of this form) for exemptions.)
b. Verify pier locations, diameters, plumbness, bell diameters (if applicable), lengths and embedment into bedrock (if applicable); record concrete or grout volumes.
Continuous
GE*
c. Confirm adequate end strata bearing capacity.
d. Concrete piers.
Continuous inspection to be provided by project inspector. Refer to specific items identified in the Appendix (end of this form) listing exemptions for limitations.
b. Verify pier locations, diameters, plumbness and lengths. Record concrete or grout volumes.
c. Concrete piers.
S5. RETAINING WALLS
a. Placement, compaction and inspection of backfill.
1705A.6.1. * By geotechnical engineer or his or her qualified representative. (See section S2 above).
b. Placement of soil reinforcement and/or drainage devices.
c. Segmental retaining walls; inspect placement of units, dowels, connectors, etc.
* By geotechnical engineer or his or her qualified representative. See DSA IR 18-2.
d. Concrete retaining walls.
e. Masonry retaining walls.
S6. OTHER SOILS
a. Soil Improvements.
Submit a comprehensive report documenting final soil improvements constructed, construction observation and the results of the confirmation testing and analysis to CGS (California Geological Survey) for final acceptance. * By geotechnical engineer or his or her qualified representative.
b. Inspection of Soil Improvements.
Table 1705A.3; ACI 318-14 Sections 26.12 & 26.13
Select Concrete Details
C1. CAST-IN-PLACE CONCRETE
a. Verify use of required design mix.
b. Identify, sample, and test reinforcing steel.
1910A.2; ACI 318-19 Ch. 20 and Section 26.6.1.2; DSA IR 17-10. (See Appendix (end of this form) for exemptions.)
c. During concrete placement, fabricate specimens for strength tests, perform slump and air content tests, and determine the temperature of the concrete.
Table 1705A.3 Item 6; ACI 318-19 Sections 26.5 & 26.12
d. Test concrete (f'c)
1905A.1.17; ACI 318-19 Section 26.12.
e. Batch plant inspection
See Notes
SI
Default of 'Continuous' per 1705A.3.3. If approved by DSA, batch plant inspection may be reduced to 'Periodic' subject to requirements in Section 1705A.3.3.1, or not required per 1705A.3.3.2. See IR 17-13. (See Appendix (end of this form) for exemptions.)
f. Welding of reinforcing steel.
*
Provide special inspection per STEEL, Category S/A4(d) & (e) and/or S/A5(g) & (h) below.
Default of 'Continuous' per 1705A.3.3. If approved by DSA, batch plant inspection may be reduced to 'Periodic' subject to requirements in Section 1705A.3.3.1, or eliminated per 1705A.3.3.2. (See Appendix (end of this form) for exemptions.)
C2. PRESTRESSED / POST-TENSIONED CONCRETE (IN ADDITION TO SECTION C1):
a. Sample and test prestressing tendons and anchorages.
b. Inspect placement of prestressing tendons.
c. Verify in-situ concrete strength prior to stressing of post-tensioning tendons.
Table 1705A.3 Item 13. Special inspector to verify specified concrete strength test prior to stressing.
d. Inspect application of post-tensioning or prestressing forces and grouting of bonded prestressing tendons.
1705A.3.4, Table 1705A.3 Item 9; ACI 318-19 Section 26.13.
C3. PRECAST CONCRETE (IN ADDITION TO SECTION C1):
a. Inspect fabrication of precast concrete members.
ACI 318-19 Section 26.13., and PCI MNL-128 and -130.
b. Inspect erection of precast concrete members.
c. For precast concrete diaphragm connections or reinforcement at joints classified as moderate or high deformability elements (MDE or HDE) in structures assigned to Seismic Design Category D, E or F, inspect such connections and reinforcement in the field for:
1. Installation of the embedded parts
2. Completion of the continuity of reinforcement across joints.
3. Completion of connections in the field.
Table 1705A.3; ACI 318-19 Section 26.13.1.3; ACI 550.5
d. Inspect installation tolerances of precast concrete diaphragm connections for compliance with ACI 550.5.
Periodic
C4. SHOTCRETE (IN ADDITION TO SECTION C1):
a. Inspect shotcrete placement for proper application techniques.
1705A.3.9, Table 1705A.3 Item 7, 1908A.1, 1908A.2, 1908A.3. See ACI 506.2-13 Section 3.4.
b. Sample and test shotcrete (f'c).
1908A.2 and 1705A.3.9.
C5. POST-INSTALLED ANCHORS:
a. Inspect installation of post-installed anchors.
1617A.1.19, Table 1705A.3 Item 4a (Continuous) & 4b (Periodic) 1705A.3.8 (See Appendix (end of this form) for exemptions); ACI 318-19 Section 26.13. * May be performed by the project inspector when specifically approved by DSA.
b. Test post-installed anchors.
1910A.5. (See Appendix (end of this form) for exemptions.)
C6. OTHER CONCRETE:
1705A.4; TMS 602-16, Tables 3 and 4.
Select Masonry Details
PSI must be between 1,500 and 3,000 PSI unless specifically approved by DSA
M1. STRUCTURAL MASONRY:
a. Mill certificate indicates compliance with requirements for reinforcement, anchors, ties, fasteners and metal accessories. See item C1(b) for identification, sampling and testing of reinforcing steel.
2103A.4; TMS 602-16 Articles 1.5B.2 & 2.4. *To be performed by qualified LOR representative. Applicable testing by LOR. See DSA IR 17-10 for unidentified reinforcing steel.
b. Producer's certificate of compliance for masonry units, mortar and grout materials.
1705A.4, 2103A.2, 2103A.3, 2103A.5; TMS 602-16 Articles 1.5B.2, 2.1, 2.2, 2.6A and 2.6B, and Table 6 footnote 3.
c. Test masonry (f'm).
1705A.4. For Unit Strength: 2105A.3; TMS 602-16 Articles 1.4B.2 ,1.5B.1 & 1.5B.2. For Prism (required when f'm > 2000 psi): 2105A.2; TMS 602-16 Articles 1.4B.3, 1.4B.4, 1.5B.1 & 1.5B.2.
d. Verify proportions or properties of site-prepared, premixed or preblended mortar.
TMS 602-16, Table 3 (row 5), Table 4 Item 1a. DSA PR 20-01. (See Appendix (end of this form) for exemptions.)
e. Verify proportions or properties of site-prepared, premixed or preblended grout.
TMS 602-16, Table 3 (row 5), Table 4 Item 2d (See Appendix (end of this form) for exemptions.)
f. Batch plant inspection
Default of 'Continuous' per 1705A.3.3. If approved by DSA, batch plant inspection may be reduced to 'Periodic' subject to requirements in Section 1705A.3.3.1, or not required per 1705A.3.3.2. See IR 17-13. Refer to TMS 602-16 Table 3 and Table 4, Item #3a. (See Appendix (end of this form) for exemptions.)
g. Test core-drilled samples.
2105A.4. (See Appendix (end of this form) for exemptions.)
h.Inspect preparation of prisms.
i. Verify size, location and condition of all dowels, construction supporting masonry, etc.
j. Verify size, grade and type of reinforcement, connectors, and anchor bolts. Verify size and location of structural members.
k. Inspect placement of reinforcement, anchor bolts, and connectors.
l. Placement, consolidation, and reconsolidation of grout.
m. Inspect placement of masonry units and construction of mortar joints.
n.Verify preparation, construction and protection of masonry during cold weather (temperature below 40⁰ F) or hot weather (temperature above 90⁰ F).
o. Inspect type, size and location of anchors and all other items to be embedded in masonry including other details of anchorage of masonry to structural members, frames and other construction.
p. Inspect grout space, including mortar protrusions, prior to placement of grout.
q.Welding of reinforcing steel.
TMS 602-16 Table 4 Item 3e. Provide special inspection per STEEL, Category S/A4(d) & (e) and/or S/A5(g) & (h) below.
M2. VENEER OR GLASS BLOCK PARTITIONS
a. Verify proportions of site-prepared mortar and grout and/or verify certification of premixed mortar.
TMS 602-16 Table 3 (row 5) and Table 4 Items 1a & 2d.
b. Inspect placement of units and construction of mortar joints.
c. Inspect placement of wire, connectors and anchors
d. Inspect type, size and location of anchors and all other items to be embedded in masonry veneer including details of anchorage of masonry to veneer backing, frames and other construction.
e. Verify preparation, construction and protection of masonry during cold weather (temperature below 40⁰ F) or hot weather (above 90⁰ F).
f. Test adhered veneer bond strength.
M3. POST-INSTALLED ANCHORS IN MASONRY
1617A.1.19, 1705A.4, Table 1705A.3 Item 4a (Continuous) & 4b (Periodic); ACI 318-14 Sections 17.8 & 26.13. * May be performed by the project inspector when specifically approved by DSA. (See Appendix (end of this form) for exemptions.)
1705A.4, 1910A.5. (See Appendix (end of this form) for exemptions.)
M4. OTHER MASONRY
1705A.2.1, Table 1705A.2.1; AISC 303-16, AISC 341-16, AISC 358-16, AISC 360-16; AISI S100-16; RCSC 2014; AWS D1.1, AWS D1.2, AWS D1.3, AWS D1.4, AWS D1.8
Select Steel/Aluminum Details
S/A1. STRUCTURAL STEEL, COLD-FORMED STEEL AND ALUMINUM USED FOR STRUCTURAL PURPOSES
a. Verify identification of all materials and: • Mill certificates indicate material properties that comply with requirements. • Material sizes, types and grades comply with requirements.
Table 1705A.2.1 Item 3a‒3c. 2202A.1; AISI S100-20 Section A3.1 & A3.2, AISI S240-20 Section A3 & A5, AISI S220-20 Sections A4 & A6. * By special inspector or qualified technician when performed off-site.
b. Test unidentified materials.
c. Examine seam welds of HSS shapes.
d. Verify and document steel fabrication per DSA-approved construction documents.
Not applicable to cold-formed steel light-frame construction, except for trusses (1705A.2.4).
e. Buckling restrained braces.
S/A2. HIGH-STRENGTH BOLTS:
a. Verify identification markings and manufacturer's certificates of compliance conform to ASTM standards specified in the DSA-approved documents.
b. Test high-strength bolts, nuts and washers.
c. Bearing-type (“snug tight”) connections.
Table 1705A.2.1 Item 2a, 1705A.2.6, 2204A.2; AISC 360-16 J3.1, J3.2, M2.5 & N5.6; RCSC 2014 Section 9.1; DSA IR 17-9.
d. Pretensioned and slip-critical connections.
Table 1705A.2.1 Items 2b & 2c, 1705A.2.6, 2204A.2; AISC 360-16 J3.1, J3.2, M2.5 & N5.6; RCSC 2014 Sections 9.2 & 9.3; DSA IR 17-9. * “Continuous” or “Periodic” depends on the tightening method used.
Welding Type Options
S/A3. WELDING:
a. Verify weld filler material identification markings per AWS designation listed on the DSA-approved documents and the WPS.
1705A.2.5, Table 1705A.2.1 Items 4 & 5; AWS D1.1 and AWS D1.8 for structural steel; AWS D1.2 for Aluminum; AWS D1.3 for cold-formed steel; AWS D1.4 for reinforcing steel; DSA IR 17-3.
b. Verify weld filler material manufacturer’s certificate of compliance.
c. Verify WPS, welder qualifications and equipment.
S/A4. SHOP WELDING (IN ADDITION TO SECTION S/A3):
a. Inspect groove welds, multi-pass fillet welds, single pass fillet welds > 5/16", plug and slot welds.
b. Inspect single-pass fillet welds ≤ 5/16”, floor and roof deck welds.
c. Inspect welding of stairs and railing systems.
d. Verification of reinforcing steel weldability other than ASTM A706.
e. Inspect welding of reinforcing steel.
S/A5. FIELD WELDING (IN ADDITION TO SECTION S/A3):
b. Inspect single-pass fillet welds ≤ 5/16”.
c. Inspect end-welded studs (ASTM A-108) installation (including bend test).
d. Inspect floor and roof deck welds.
e. Inspect welding of structural cold-formed steel.
1705A.2.5; AWS D1.3; DSA IR 17-3. The quality control provisions of AISI S240-20 Chapter D shall also apply. * May be performed by the project inspector when specifically approved by DSA.
f. Inspect welding of stairs and railing systems.
g. Verification of reinforcing steel weldability.
h. Inspect welding of reinforcing steel.
S/A6. NONDESTRUCTIVE TESTING:
a. Ultrasonic.
1705A.2.1, 1705A.2.5; AISC 341-16 J6.2, AISC 360-16 N5.5; AWS D1.1, AWS D1.8; DSA IR 17-2.
b. Magnetic Particle.
S/A7. STEEL JOISTS AND TRUSSES
a. Verify size, type and grade for all chord and web members as well as connectors and weld filler material; verify joist profile, dimensions and camber (if applicable); verify all weld locations, lengths and profiles; mark or tag each joist.
S/A8. SPRAYED FIRE-RESISTANT MATERIALS
a. Examine structural steel surface conditions, inspect application, take samples, measure thickness and verify compliance of all aspects of application with DSA-approved documents.
1705A.15, 1705A.15.1, 1705A.15.2, 1705A.15.3, 1705A.15.4, 1705A.15.5, 1705A.15.6.
b. Test density.
1705A.15.1, 1705A.15.5, ASTM E605
c. Bond strength adhesion/cohesion.
1705A.15.1, 1705A.15.6, ASTM E736
S/A9. ANCHOR BOLTS AND ANCHOR RODS
a. Anchor Bolts and Anchor Rods.
Identify, sample and test anchor bolts and anchor rods not meeting exemptions identified in Section 1 of IR 17-11.
b. Threaded rod not used for foundation anchorage.
Identify, sample and test threaded rods not meeting exemptions identified in Section 1 of IR 17-11.
S/A10. STORAGE RACK SYSTEMS
a. Materials used, to verify compliance with one or more of the material test reports in accordance with the approved construction documents.
Table 1705A.13.7
b. Fabricated storage rack elements.
1704A.2.5; Table 1705A.13.7
c. Storage rack anchorage installation.
ANSI/MH16.1 Section 7.3.2; Table 1705A.13.7
d. Completed storage rack system to indicate compliance with the approved construction documents.
SI*
Table 1705A.13.7; * May be preformed by the project inspector when specifically approved by DSA.
S/A11. OTHER STEEL
Select Wood Details
W1. PREFABRICATED WOOD TRUSSES
a. Inspect fabrication of manufactured open-web trusses.
1705A.5.6; DSA IR 23-8.
b. Inspect fabrication of manufactured metal-plate-connected trusses.
1705A.5.6, 1705A.5.7; DSA IR 23-4.
W2. MANUFACTURED WOOD STRUCTURAL ELEMENTS:
a. Inspect fabrication of structural glued-laminated timber.*
* See 1705A.5.5 for exceptions.
b. Inspect fabrication of cross-laminated timber.
1705A.5.5
c. Inspect erection of mass timber.
Table 1705A.5.3, Item 2
d. Inspect mass timber connections with threaded fasteners, bolts, and/or adhesive anchors other than described in item e below. Inspect concealed mass timber connections.
Table 1705A.5.3, Items 3.1, 3.3, 3.4, 3.5. For threaded fasteners: Verify use of proper installation equipment. Verify use of pre-drilled holes where required. Inspect screws, including diameter, length, head type, spacing, installation angle, and depth.
e. Inspect mass timber connections with adhesive anchors installed in a horizontal or upward orientation.
Table 1705A.5.3, Item 3.2
f. Inspect application of sealants or adhesives applied to mass timber elements.
1705A.20
W3. OTHER WOOD
X1. OTHER
a. Load Test for Identified Product(s):
b. Installation torque for non-HS bolts.
• Soils Testing and Inspection: Geotechnical Verified Report Form DSA 293
Soils Testing and Inspection: Geotechnical Verified Report Form DSA 293
• Structural Testing and Inspection: Laboratory Verified Report Form DSA 291
Structural Testing and Inspection: Laboratory Verified Report Form DSA 291
• Concrete Batch Plant Inspection: Laboratory Verified Report Form DSA 291
Concrete Batch Plant Inspection: Laboratory Verified Report Form DSA 291
• Prestressed / Post-Tensioned Concrete Inspection: Laboratory Verified Report Form DSA 291 , or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
Prestressed / Post-Tensioned Concrete Inspection: Laboratory Verified Report Form DSA 291, or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
• Precast Concrete Inspection: Laboratory Verified Report Form DSA 291 , or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
Precast Concrete Inspection: Laboratory Verified Report Form DSA 291, or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
• Shotcrete Inspection: Laboratory Verified Report Form DSA 291 , or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
Shotcrete Inspection: Laboratory Verified Report Form DSA 291, or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
• Post-installed Anchors: Laboratory Verified Report Form DSA 291 , or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
Post-installed Anchors: Laboratory Verified Report Form DSA 291, or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
• Masonry Inspection: Laboratory Verified Report Form DSA 291 , or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
Masonry Inspection: Laboratory Verified Report Form DSA 291, or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
• Shop Welding Inspection: Laboratory Verified Report Form DSA 291 , or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
Shop Welding Inspection: Laboratory Verified Report Form DSA 291, or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
• Field Welding Inspection: Laboratory Verified Report Form DSA 291 , or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
Field Welding Inspection: Laboratory Verified Report Form DSA 291, or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
• High-Strength Bolt Installation Inspection: Laboratory Verified Report Form DSA 291 , or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
High-Strength Bolt Installation Inspection: Laboratory Verified Report Form DSA 291, or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
• Steel Joist Fabrication Inspection: Laboratory Verified Report Form DSA 291 , or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
Steel Joist Fabrication Inspection: Laboratory Verified Report Form DSA 291, or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
• Sprayed Fire-Resistive Material Application Inspection: Laboratory Verified Report Form DSA 291 , or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
Sprayed Fire-Resistive Material Application Inspection: Laboratory Verified Report Form DSA 291, or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
• Mass Timber Inspection: Laboratory Verified Report Form DSA 291 , or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
Mass Timber Inspection: Laboratory Verified Report Form DSA 291 , or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
• Glu-Lam Wood Fabrication Inspection: Laboratory Verified Report Form DSA 291 , or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
Glu-Lam Wood Fabrication Inspection: Laboratory Verified Report Form DSA 291, or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
• Wood Truss Fabrication Inspection: Laboratory Verified Report Form DSA 291 , or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
Wood Truss Fabrication Inspection: Laboratory Verified Report Form DSA 291 , or, for independently contracting SI, Special Inspection Verified Report Form DSA 292
Appendix: Work Exempt from DSA Requirements for Structural Tests / Special Inspections
Exempt items given in DSA IR A-22 or the 2022 CBC (including DSA amendments) and those items identified below with a check mark by the design professional are NOT subject to DSA requirements for the structural tests / special inspections noted. Items marked as exempt shall be identified on the approved construction documents. The project inspector shall verify all construction complies with the approved construction documents.
SOILS
CONCRETE/MASONRY
WELDING
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