Rogers AR Civil & Structural Plan Review: 137 Issues Found

Summary: 23 index entries | 20 perfect matches | 3 mismatched | 0 missing Mismatched (3): 2.0: Expected: WEST WALL SITE PLAN (2.0) | Actual: WEST WALL 1 AND 2 SITE PLAN (2.0)(p2) 2.1: Expected: WEST WALL SITE PLAN (2.1) | Actual: EAST WALL 1 AN (2.1)(p3) 7.0: Expected: TYPICAL DETAILS - 2 (7.0) | Actual: TYPICAL DETAILS - 3 (7.0)(p8)

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Summary: 45 index entries | 31 perfect matches | 6 mismatched | 8 missing Mismatched (6): C6.2: Expected: LANDSCAPE PLAN NOTES & DETAILS (C6.2) | Actual: LANDSCAPE NOTES & DETAILS (C6.2)(p14) C9.5: Expected: CITY OF ROGERS STANDARD DETAIL SHEET (C9.5) | Actual: COR STANDARD DETAILS (C9.5)(p23) C9.6: Expected: CITY OF ROGERS RAILYARD LOOP WAYFINDING SIGNAGE (C9.6) | Actual: CITY OF ROGERS WAYFINDING SIGNAGE (C9.6)(p24) C9.7: Expected: CITY OF ROGERS RAILYARD LOOP WAYFINDING SIGNAGE 2 (C9.7) | Actual: CITY OF ROGERS WAYFINDING SIGNAGE 2 (C9.7)(p25) ES2.1: Expected:

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Summary: Sheet C9.7 specifies the thermoplastic mile marker text color as RED PMS 200 C with a White background color. Sheet 8 specifies the mile marker with Matte White copy text and a Pantone 309 C (dark blue) background color. These are mutually exclusive color schemes for the same thermoplastic mile marker element — one calls for red text on a white field, while the other calls for white text on a blue field.

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Summary: Civil Plan C5.1 details STR 70F with a "RIM: 1347.00" and a 24" pipe invert at "24" ADS FAB STUB (S) INV: 1340.26". This requires a minimum interior depth of 6.74 feet (1347.00 - 1340.26) down to the invert. However, Structural Elevation S1 explicitly dimensions the top slab and wall height above the base slab as "6'-3"" (6.25 feet).

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Summary: The tree planting detail on the drawing explicitly states the planting pit is to be 2 times the diameter of the root ball. However, Specification Section 32 90 01, paragraph 3.05 B requires excavation approximately 3 times as wide as the ball diameter for container-grown stock. This is a direct, measurable conflict between the drawing detail and the specification requirement.

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Summary: Detail 85A 'TEMPORARY STONE CONSTRUCTION ENTRANCE' specifies '2"-3" STONE' for the stabilized construction entrance. Section 31 25 70 requires '3 to 6 inch diameter stones'. The drawing's maximum stone size (3 inches) equals only the specification's minimum, and the drawing's minimum stone size (2 inches) is below the specification minimum. This is a direct material specification conflict.

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Summary: COR standard details 70B (Curb and Gutter), 70M (Commercial Driveway), and 03D (Typical Sidewalk) all specify Class B concrete at 3500 PSI for curb, gutter, sidewalks, and driveways. However, the project specification Section 03 30 00, Para 2.04.A defines Class B concrete as having a minimum 28-day compressive strength of only 2500 PSI, not 3500 PSI. Class A concrete is 3500 PSI per the specification. Furthermore, the specification Para 2.04.B explicitly requires Class A concrete for curb and gutter. The drawing's designation of 'Class B' for these elements directly contradicts both the concre

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Summary: The drawing general notes state concrete shall be "CLASS S WITH A MINIMUM 28 DAY COMPRESSIVE STRENGTH OF 3500 PSI." However, Section 03 30 00 only defines Class A (3500 psi), Class B (2500 psi), and Class C (4000 psi) concrete, each with specific mix design requirements (cement content, water, slump, air entrainment). "Class S" is not defined anywhere in the project specifications. While the 3500 PSI strength matches Class A, the "Class S" designation has no associated mix proportioning requirements in the project specifications. Section 03 30 00 further states Class A concrete shall be used f

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Summary: The Lighting Contactor Schedule specifies the LC1 contactor with a "NEMA 1" enclosure. However, the Rack Detail (Detail 3) clearly shows the lighting contactor (labeled "LC") mounted on an outdoor equipment rack alongside Panel LA1. NEMA 1 enclosures are rated for indoor general-purpose use only and provide no protection against rain, moisture, or weather. The specification requires all electrical work to comply with the National Electrical Code, and requires water tight equipment for outdoor electrical systems. Notably, Panel LA1 on the same outdoor rack is correctly specified as NEMA 3R.

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Summary: The drawing concrete notes explicitly specify a compressive strength of 3000 PSI for 'retaining walls'. Since this sheet details a cast-in-place junction box and provides no other compressive strength values, this implies the junction box walls are to be constructed with 3000 PSI concrete. However, Section 03 30 00 requires Class A concrete (minimum 3500 PSI at 28 days) for all structures, and Section 33 49 00 independently requires cast-in-place structures to be constructed of 3500 PSI concrete. The junction box shown on this sheet is a cast-in-place concrete storm sewer structure and must th

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Summary: Specification Section 32 13 14 requires that the Portland cement concrete trail comply with the slope requirements of the Americans with Disabilities Act (A.D.A.). The drawing shows a continuous longitudinal trail slope of 5.6% (in plan view) and 5.65% (in profile view) over a distance of 260.67 feet. Under A.D.A. guidelines, any walking surface with a running slope greater than 5% (1:20) is classified as a ramp, which strictly requires level landings at maximum 30-foot horizontal intervals and handrails. No landings or handrails are indicated for this 260.67-foot segment, representing a direc

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Summary: The drawing explicitly shows a 'REDI ROCK GRAVITY WALL DESIGN SUBMITTAL' using precast modular blocks (R-28T, R-28B, R-28M, R-41B, R-41M, XL-52) from 'Industrial Precast Inc.' However, Section 03 30 00 specifies that the retaining wall is to be constructed using cast-in-place concrete. Furthermore, Section 03 30 00, 2.04.B states that 'Class A concrete shall be used for all structures... unless otherwise specified,' which would include retaining walls at a minimum 3500 psi compressive strength at 28 days. A precast modular block gravity wall is a fundamentally different structural system and c

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Summary: The drawings require storm drain pipes to be backfilled immediately after installation (Note H) and mandate that off-site utility trenches be backfilled at the end of each working day (Note X). In direct contradiction, the specifications prohibit backfilling any trenches until required tests are performed and accepted by governing authorities.

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Summary: Demolition Note 74B explicitly directs the contractor to protect utilities during the 'CONSTRUCTION OF TUNNEL'. However, Specification Section 31 23 01 strictly mandates 'Open cut excavation' using a trenching machine or backhoe for project utility excavations.

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Summary: Section 03 30 00 governs civil site concrete (streets, crosswalks, thrust blocks, etc.) and mandates the installation of a vapor barrier under 'slab on grade'. However, Detail 08E (Standard Duty Concrete Paving) and Detail 70C (Concrete Multi-Use Trail) show exterior concrete placed directly on an aggregate base without a vapor barrier.

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