| Type | Severity | Sheet / Clause | Finding | Cited | Model | Revision | Timestamp |
|---|---|---|---|---|---|---|---|
| cross-discipline | high | electrical E-102 / 1.1 | Both the electrical cable tray CT-5 (at 3'6" AFF) and the low-voltage BMS backbone cabling tray (at 3'0" AFF) are routed through Electrical Room 210 and both intersect the switchgear SG-2 required working clearance zone (per NEC 110.26, this space must remain unobstructed). Two trays at nearly the same elevation both crossing the dedicated clearance envelope for SG-2 represent a physical space conflict - the working clearance cannot be encroached by either tray, and their close vertical proximity (6 inches apart) also raises installation/clash risk. |
low_voltage 1.1
|
claude-sonnet-5 | Rev B | 2026-08-09 03:28 |
| cross-discipline | high | civil C-101 / 1.1 | The utility trench for the electrical duct bank at column line 12 is excavated to 4'-0" below finished grade, which is deeper than Footing F-12's bearing depth of 3'-6" below finished grade at the same column line. Excavating the trench below the footing's bearing elevation could undermine the footing's bearing soil, creating a structural conflict unless special shoring, underpinning, or sequencing is specified. |
structural 1.1
|
claude-sonnet-5 | Rev B | 2026-08-09 03:28 |
| cross-discipline | high | architectural A-102 / 1.2 | Architectural clause 1.2 requires a minimum 8'-6" clear from finished floor to the underside of any overhead equipment in Data Hall 4. Mechanical clause 2.1 places exhaust louver EL-3 penetrating the Data Hall 4 exterior wall at only 7'-6" above finished floor, which is 1'-0" below the required minimum clearance, creating a direct conflict. |
mechanical 2.1
|
claude-sonnet-5 | Rev B | 2026-08-09 03:28 |
| cross-discipline | high | architectural A-101 / 1.1 | Door D-21 swings inward into Electrical Room 210 with a 42-inch arc centered 8 inches off the west wall. Switchgear SG-2, located in the same room, requires a dedicated 42-inch deep working clearance per NEC 110.26 that must remain free of any other trade's infrastructure, including obstructions like door swings. If the door's swing arc overlaps the required clearance zone in front of SG-2, this violates the code-mandated clear working space. |
electrical 1.1
|
claude-sonnet-5 | Rev B | 2026-08-09 03:28 |
| cross-discipline | high | structural S-102 / 1.1 | Structural beam B-14 limits clear height in Data Hall 2 to 14'0" AFF, but mechanical ductwork DS-11 in the same space requires clearance to 14'6" AFF to the bottom of duct insulation. The duct clearance requirement exceeds the available clear height under the beam, making the two requirements physically incompatible. |
mechanical 1.1
|
claude-sonnet-5 | Rev B | 2026-08-09 03:28 |
| cross-discipline | high | low_voltage LV-101 / 1.1 | The BMS backbone cabling tray is routed at 3'-0" AFF through Electrical Room 210, placing it within the SG-2 working clearance zone. Electrical clause b88a0614 requires this working clearance to be kept dedicated and free of any other trade's infrastructure per NEC 110.26. Additionally, electrical clause 9bbd319b already places Cable Tray CT-5 at 3'-6" AFF crossing this same clearance zone, meaning both the low-voltage BMS tray and CT-5 encroach into the same protected clearance space, compounding the NEC violation and creating a potential physical clash between the two trays themselves. |
electrical 1.1
electrical 1.1
|
claude-sonnet-5 | Rev B | 2026-08-09 03:28 |
| cross-discipline | high | structural S-101 / 1.1 | Footing F-12 at column line 12 bears at 3'-6" below finished grade, which is shallower than the adjacent electrical duct bank trench along the same column line excavated to 4'-0" below finished grade. Excavating the utility trench deeper than and adjacent to the footing bearing elevation risks undermining the footing's bearing soil, requiring coordination (e.g., trench location offset, underpinning, or lowering the footing bearing elevation). |
civil 1.1
|
claude-sonnet-5 | Rev B | 2026-08-09 03:28 |
| cross-discipline | high | fire_protection FP-101 / 1.1 | Sprinkler branch line SP-6 is located at 14'-3" AFF in Data Hall 2, which is below the 14'-6" AFF clearance required for the bottom of DS-11 duct insulation in the same space. This places the sprinkler line within the mandated clear zone beneath the duct insulation, creating a physical clash/coordination conflict. |
mechanical 1.1
|
claude-sonnet-5 | Rev B | 2026-08-09 03:28 |
| cross-discipline | high | mechanical M-101 / 2.1 | Mechanical clause routes condenser water piping at 7'-0" AFF along the Data Hall 1 perimeter wall, but the architectural RCP for Data Hall 1 requires a minimum 9'-0" clear from finished floor to the underside of any overhead equipment, duct, tray, or pipe. The piping height violates the required clearance. |
architectural 1.1
|
claude-sonnet-5 | Rev B | 2026-08-09 03:28 |
| cross-discipline | high | mechanical M-102 / 1.1 | Ductwork DS-11 in Data Hall 2 requires 14'-6" clearance to bottom of duct insulation, but structural beam B-14 only provides 14'-0" clear height in Data Hall 2. The duct clearance requirement exceeds the available structural clear height by 6 inches, making it physically impossible to install as specified. |
structural 1.1
|
claude-sonnet-5 | Rev B | 2026-08-09 03:28 |
| cross-discipline | high | mechanical M-102 / 1.1 | Sprinkler branch line SP-6 crosses Data Hall 2 at 14'-3", which is below the 14'-6" minimum clearance required for the bottom of DS-11 duct insulation. This indicates a direct physical clash between the sprinkler line and the ductwork/insulation envelope in the same space. |
fire_protection 1.1
|
claude-sonnet-5 | Rev B | 2026-08-09 03:28 |
| cross-discipline | high | electrical E-101 / 1.1 | The low_voltage cable tray for the BMS backbone runs at 3'-0" AFF through Electrical Room 210 directly within the SG-2 working clearance zone required by NEC 110.26 to be a dedicated 42-inch deep space free of other trades' infrastructure. This is a direct physical conflict. |
low_voltage 1.1
|
claude-sonnet-5 | Rev B | 2026-08-09 03:28 |
| cross-discipline | medium | civil C-101 / 1.2 | Civil clause specifies the utility trench for the domestic water tie-in at column line 18 excavated to only 3'-0" below finished grade, but the plumbing domestic water main entry is specified at 4'-0" below finished grade. The trench depth does not match the depth of the pipe it is intended to receive, creating a coordination discrepancy. |
plumbing 1.1
|
claude-sonnet-5 | Rev B | 2026-08-09 03:28 |
| cross-discipline | medium | structural S-101 / 1.2 | Footing F-18 at column line 18 bears at 5'0" below finished grade, while the civil site utility trench along the same column line 18 is excavated to 3'0" below finished grade for a domestic water tie-in. Although the trench is shallower than the footing bearing elevation, the trench runs along the same column line and could be located close enough horizontally to undermine the footing's bearing soil if not properly offset or if excavation encroaches within the footing's influence zone. This requires coordination to confirm horizontal separation and that the trench does not undercut the footing's bearing stratum. |
civil 1.2
|
claude-sonnet-5 | Rev B | 2026-08-09 03:28 |
| cross-discipline | medium | plumbing P-101 / 1.1 | Plumbing clause states the domestic water main enters the building 4'-0" below finished grade, but the civil site utility trench specifically excavated for the domestic water tie-in (clause 1.2) is only excavated to 3'-0" below finished grade. The trench depth does not match the specified depth of the incoming water main, creating a potential conflict in bury depth/elevation coordination. |
civil 1.2
|
claude-sonnet-5 | Rev B | 2026-08-09 03:28 |
| cross-discipline | medium | mechanical M-102 / 2.1 | Exhaust louver EL-3 is mounted at 7'-6" AFF in Data Hall 4, which is below the 8'-6" minimum clear height required by the architectural RCP for Data Hall 4 from finished floor to the underside of any overhead equipment, duct, tray, or pipe. This places the louver within the required clear zone, conflicting with the ceiling clearance requirement. |
architectural 1.2
|
claude-sonnet-5 | Rev B | 2026-08-09 03:28 |
| vs. code | medium | civil C-101 / 1.2 | The project clause describes excavation to 3 feet (36 inches) below finished grade along column line 18 for a utility tie-in, but does not indicate that fencing has been provided around the excavation area. Per the local amendment adding Section 3304.3, excavation exceeding 30 inches in depth must meet guard requirements per Chapters 10 and 16, and any excavation within 5 feet of a walkway must be fenced with fencing at least 4 feet high, supported against wind collapse. Since the excavation depth (36 inches) exceeds the 30-inch threshold, the clause fails to address these fencing/guard requirements, creating a potential conflict if the trench is near a walkway and unfenced. |
2
|
claude-sonnet-5 | Rev B | 2026-08-11 23:41 |
| vs. code | medium | fire_protection FP-101 / 2.1 | The project clause specifies a minimum residual pressure of 65 psi at the topmost outlet of the standpipe riser. Per code 905.2.4, where the pressure at nozzles is more than 65 psi, a pressure reducing device or disk must be installed to limit the force of the hose stream to 90 pounds so it can be safely handled. Since the project clause sets the residual pressure exactly at the 65 psi threshold, it must be verified that no downstream nozzle pressure exceeds 65 psi (accounting for hose/nozzle losses), or pressure-reducing devices must be provided at the 1.5-inch hose valves as required by 905.2.4. As written, the clause does not address this requirement and could result in nozzle pressures at or above the 65 psi threshold without the mandated pressure-reducing device. |
905.2.4
|
claude-sonnet-5 | Rev B | 2026-08-11 23:41 |
| cross-discipline | low | civil C-101 / 1.2 | The trench at column line 18 is excavated to 3'-0" below finished grade, which is above (shallower than) the 5'-0" bearing depth of adjacent Footing F-18 at the same column line. While this may be acceptable depending on lateral offset, if the trench is close to the footing it could undermine the footing's bearing soil, requiring coordination on trench location/shoring relative to the footing. |
structural 1.2
|
claude-sonnet-5 | Rev B | 2026-08-09 03:28 |
| cross-discipline | low | mechanical M-101 / 1.1 | Mechanical clause requires only 8'6" overhead clearance for CRAC unit CU-6 in Data Hall 1, while the architectural RCP for Data Hall 1 requires a minimum 9'0" clear from finished floor to the underside of any overhead equipment. Although CU-6's requirement does not itself violate the 9'0" minimum (8'6" is less than 9'0"), the two clauses reference different clearance values for the same room and equipment type, which should be confirmed as consistent (i.e., CU-6 must not be installed such that its top clears at less than 9'0", verifying no conflict in final installed height). |
architectural 1.1
|
claude-sonnet-5 | Rev B | 2026-08-09 03:28 |
| cross-discipline | low | mechanical M-101 / 1.2 | Mechanical clause 1.2 requires only 7'0" of overhead clearance for CRAC unit CU-9 in Data Hall 4, which is less than the 8'6" clear height mandated by the architectural RCP for Data Hall 4. This is not a true conflict since the mechanical requirement is a minimum, not a maximum, and 7'0" fits within the 8'6" envelope, but it is flagged for coordination confirmation that CU-9's actual installed height does not exceed the architectural clearance limit. |
architectural 1.2
|
claude-sonnet-5 | Rev B | 2026-08-09 03:28 |
| cross-discipline | low | electrical E-101 / 1.1 | Door D-21 swings inward into Electrical Room 210 with a 42-inch arc centered 8 inches off the west wall; depending on the location of SG-2 and the direction of its required working clearance, the door swing could intrude into the dedicated 42-inch clearance zone, which must remain free of obstructions. This should be verified against the switchgear's exact position and clearance direction. |
architectural 1.1
|
claude-sonnet-5 | Rev B | 2026-08-09 03:28 |