Mixed-Use Sidewalk & PROW Improvements: 28 Issues Found

Summary: 320 indexed pages | 4 match | 4 minor mismatch | 0 mismatch | 312 missing Minor Mismatch (4): G-000: Expected: COVER SHEET (G-000) | Actual: Cover Sheet (Page 2)(p2) | Reason: Sheet number uses 'Page 2' instead of 'G-000', but title matches. ZSP-1: Expected: ZONING SITE PLAN (ZSP-1) | Actual: ZONING SITE PLAN DEPICTING...

Why it matters:

Suggested next step:

RFI draft: 📄 Page 1 Schedule Text: DRAWING INDEX — page 1 --- 📄 G-001 Schedule Text: DRAWING INDEX — page 3 --- 📄 ZSP-1 Schedule Text: DRAWING INDEX — page 4

Summary: The project is located in Norwalk, CT, as shown on the Site Utility Plan title block. However, the Hydrant Installation detail explicitly requires a hydrant with 'CITY OF STAMFORD THREADS & NUTS'.

Why it matters: Fire hydrant hose threads are highly specific to local municipalities. Installing a hydrant with Stamford threads in Norwalk will prevent the local Norwalk fire department from connecting their hoses to the hydrant during an emergency, posing a severe life-safety risk and guaranteeing failure during municipal fire inspections.

Suggested next step: Please provide an updated Hydrant Installation detail specifying City of Norwalk thread and nut requirements, as the current detail specifies City of Stamford threads for a project located in Norwalk.

RFI draft: Please provide an updated Hydrant Installation detail specifying City of Norwalk thread and nut requirements, as the current detail specifies City of Stamford threads for a project located in Norwalk.

Summary: SE-2 indicates that Infiltration System 1 (INF#1) discharges to MH#6, but the listed inverts result in an impossible uphill flow (INF#1 INV.OUT=17.75 to MH#6 INV.IN=18.00). Furthermore, MH#6 routes water uphill internally (INV.IN=18.00 to INV.OUT=18.10). Additionally, SE-1 establishes the adjacent garage basement level at 17.0±. The storm...

Why it matters: Water cannot flow from a lower elevation to a higher elevation by gravity. The design of the storm pipe inverts at MH#6 and INF#1 is physically impossible. Moreover, setting the infiltration system and storm routing above the adjacent basement FFE contradicts standard civil grading practices and will likely cause groundwater/stormwater...

Suggested next step: Please review and revise the invert elevations for INF#1, MH#6, and MH#5 to ensure positive downhill gravity flow. Confirm that the infiltration system's high water level and inverts are safely coordinated with the adjacent garage basement elevation of 17.0±.

RFI draft: Please review and revise the invert elevations for INF#1, MH#6, and MH#5 to ensure positive downhill gravity flow. Confirm that the infiltration system's high water level and inverts are safely coordinated with the adjacent garage basement elevation of 17.0±.

Summary: The Site Utility Plan SE-2 identifies the project as being in Norwalk, CT and shows proposed fire hydrant work. The hydrant installation detail provided on SE-7, the project detail sheet, specifies the hydrant 'AS REQUIRED BY CITY OF STAMFORD (KENNEDY K-81 WITH CITY OF STAMFORD THREADS & NUTS).' This is the wrong municipality. All other...

Why it matters: Installing a hydrant with City of Stamford threads, nuts, and specifications in the City of Norwalk would likely be rejected during inspection by the Norwalk Fire Department or the local water authority, as fire hydrant connections and fittings must be compatible with the responding jurisdiction's equipment. This could result in costly...

Suggested next step: Request the engineer provide a corrected hydrant installation detail specifying the City of Norwalk hydrant requirements, including the approved hydrant make/model, thread type, and connection fittings compatible with Norwalk fire department equipment.

RFI draft: Request the engineer provide a corrected hydrant installation detail specifying the City of Norwalk hydrant requirements, including the approved hydrant make/model, thread type, and connection fittings compatible with Norwalk fire department equipment.

Summary: Sheet SE-2 (Site Utility Plan) clearly identifies the project as being located in Norwalk, CT, with multiple references to Norwalk authorities (Norwalk WPCA, Norwalk DPW, Norwalk Standard). The plan shows a proposed fire hydrant to be installed. However, the Hydrant Installation detail on sheet SPC P-015 specifies the hydrant 'AS REQUIRED BY...

Why it matters: Fire hydrant thread types, connection standards, and approved models vary between municipalities. Installing a hydrant per City of Stamford specifications (Kennedy K-81 with Stamford-specific threads and nuts) in Norwalk would likely result in non-compliance with Norwalk fire department and water utility requirements, potentially preventing...

Suggested next step: Please confirm the correct hydrant specification for this Norwalk, CT project. The Hydrant Installation detail currently references 'CITY OF STAMFORD (KENNEDY K-81 WITH CITY OF STAMFORD THREADS & NUTS).' Should this detail be revised to reflect City of Norwalk hydrant requirements, including Norwalk-approved hydrant model, thread type, and...

RFI draft: Please confirm the correct hydrant specification for this Norwalk, CT project. The Hydrant Installation detail currently references 'CITY OF STAMFORD (KENNEDY K-81 WITH CITY OF STAMFORD THREADS & NUTS).' Should this detail be revised to reflect City of Norwalk hydrant requirements, including...

Summary: The Site Utility Plan SE-2 identifies the project as being located in Norwalk, CT and calls for proposed fire hydrants. However, the Hydrant Installation detail on the same drawing set specifies the hydrant as required by the City of Stamford with Stamford-specific threads and nuts. All other City-specific standard details on the same sheet...

Why it matters: Installing a fire hydrant with City of Stamford threads and nut specifications (Kennedy K-81 with City of Stamford threads & nuts) in the City of Norwalk would result in incompatible fire department connections. The Norwalk Fire Department's hose couplings may not connect to Stamford-threaded hydrant outlets, creating a life-safety concern. The...

Suggested next step: Please confirm that the Hydrant Installation detail should reference City of Norwalk hydrant requirements rather than City of Stamford. Please provide the correct Norwalk-standard hydrant make/model, thread type, and nut specifications to replace the currently shown Kennedy K-81 with City of Stamford threads & nuts.

RFI draft: Please confirm that the Hydrant Installation detail should reference City of Norwalk hydrant requirements rather than City of Stamford. Please provide the correct Norwalk-standard hydrant make/model, thread type, and nut specifications to replace the currently shown Kennedy K-81 with City of...

Summary: The Zoning Data Table specifies that 'WALL STREET PLACE NORTH' requires '2 spaces' for loading, while 'WALL STREET PLACE EAST' requires 'N/A' (none). In contradiction to this table, the ZSP-1 plan shows 'TWO PROPOSED LOADING SPACES (10'x25')' located at the East Building site, and none at the North Building. Furthermore, the SE-3 plan...

Why it matters: Placing loading spaces at the incorrect building will violate the approved zoning allocation and traffic management plans. Resolving this discrepancy is critical before curb cuts, striping, and site paving are finalized to ensure zoning compliance and proper service vehicle access.

Suggested next step: Please clarify the correct location for the proposed loading spaces. Should they be located at the North Building as indicated on SE-3 and required by the Zoning Data Table, or at the East Building as shown on the ZSP-1 plan layout?

RFI draft: Please clarify the correct location for the proposed loading spaces. Should they be located at the North Building as indicated on SE-3 and required by the Zoning Data Table, or at the East Building as shown on the ZSP-1 plan layout?

Summary: The ZONING DATA TABLE requires 2 loading spaces for the North building and 'N/A' for the East building. However, the ZONING SITE PLAN (ZSP-1) illustrates 'TWO PROPOSED LOADING SPACES (10'x25')' on the East building parcel. Conversely, the SITE PAVING PLAN (SE-3) illustrates 'PROPOSED LOADING SPACES (10'x25')' on the North building parcel, while...

Why it matters: Conflicts regarding the location and quantity of loading spaces directly impact zoning compliance, delivery logistics, and site layout approvals. Clear coordination is required to ensure the site is permitted and constructed as intended.

Suggested next step: Please clarify the required locations and quantities for the loading spaces. Should the 2 loading spaces be located on the North parcel as indicated in the Zoning Data Table and SE-3, or on the East parcel as indicated on ZSP-1? Additionally, clarify if the East parcel requires a vehicle loading zone.

RFI draft: Please clarify the required locations and quantities for the loading spaces. Should the 2 loading spaces be located on the North parcel as indicated in the Zoning Data Table and SE-3, or on the East parcel as indicated on ZSP-1? Additionally, clarify if the East parcel requires a vehicle loading...

Summary: The Zoning Site Plan (ZSP-1) directs the contractor to 'REMOVE ASPHALT WALK' near the driveway entrance. However, the Site Paving Plan (SE-3) labels this walkway as flagstone and explicitly states 'EXISTING FLAGSTONE WALKWAY TO REMAIN'. The Site Grading Plan (SE-I) supports the paving plan by directing the blending of grades 'AT FLAGSTONE WALK'.

Why it matters: Conflicting instructions to either remove an asphalt walk or retain a flagstone walk in the same location will cause confusion during site demolition and preparation, potentially leading to the erroneous destruction of a walkway intended to remain.

Suggested next step: Please confirm the material of the existing walkway near the driveway entrance, and clarify whether it should be removed (as noted on ZSP-1) or remain in place (as noted on SE-3 and SE-I).

RFI draft: Please confirm the material of the existing walkway near the driveway entrance, and clarify whether it should be removed (as noted on ZSP-1) or remain in place (as noted on SE-3 and SE-I).

Summary: There is a routing contradiction on SE-2 regarding where Area Drain 2 (AD#2) discharges. The callout for AD#2 states that it discharges to AD#1 with an invert out of 22.13. However, the adjacent Junction Box 1 (JB#1) notes that it receives an incoming pipe from AD#2 at an invert of 21.48. SE-1 provides the surface grading context (26.50) for...

Why it matters: An area drain typically has a single outlet discharging to one designated structure. The contractor will not know whether to route the discharge pipe from AD#2 to AD#1 or to JB#1, which will cause installation delays and potential field coordination errors.

Suggested next step: Clarify the correct discharge destination for AD#2. Update the callouts for AD#2, AD#1, and JB#1 to reflect a single, consistent pipe route and invert elevation.

RFI draft: Clarify the correct discharge destination for AD#2. Update the callouts for AD#2, AD#1, and JB#1 to reflect a single, consistent pipe route and invert elevation.

Summary: The paving plan (SE-3) indicates a 'PROPOSED TYPE 'A' REINFORCED CONCRETE DRIVEWAY ENTRANCE' and a thermoplastic crosswalk at the northwest corner of the East building (17 Isaacs Street). Conversely, the grading plan (SE-I) does not show a driveway at this location; instead, it shows a continuous 'CONCRETE WALK', a continuous 6-inch curb ('TC...

Why it matters: If the driveway is required for vehicular access to the garage, the continuous curb, retaining wall, and tree plantings shown on the grading plan will block entry. If the driveway was removed in a design update, the paving plan incorrectly retains it. This requires coordination to establish the correct site layout and grading.

Suggested next step: Please clarify if a vehicular driveway entrance is intended at the northwest corner of the East building. Should the paving plan be updated to remove the driveway, or should the grading plan be revised to include a curb cut and driveway apron?

RFI draft: Please clarify if a vehicular driveway entrance is intended at the northwest corner of the East building. Should the paving plan be updated to remove the driveway, or should the grading plan be revised to include a curb cut and driveway apron?

Summary: The Site Paving Plan (SE-3) specifies 'PROPOSED FLUSH GRANITE CURB (TYP.)' and 'PROPOSED FLUSH CURB' along the street frontage. However, the top-of-curb (TC) and bottom-of-curb (BC) spot elevations on the Site Grading Plan (SE-1) consistently dictate a 0.50 ft (6-inch) reveal in these exact locations (e.g., 'TC=30.00 BC=29.50' and 'TC=29.90...

Why it matters: If the curbs are poured according to the grading plan elevations, they will have a 6-inch vertical step rather than being flush with the adjacent pavement. This will create non-compliant pedestrian transitions and crossing ramps, potentially violating ADA accessibility requirements and necessitating costly concrete removal and rework.

Suggested next step: Please clarify the design intent for the curb reveals. Should the spot elevations on the Site Grading Plan (SE-1) be updated to reflect flush conditions (where TC equals BC), or should the Site Paving Plan (SE-3) be revised if a 6-inch reveal is intended?

RFI draft: Please clarify the design intent for the curb reveals. Should the spot elevations on the Site Grading Plan (SE-1) be updated to reflect flush conditions (where TC equals BC), or should the Site Paving Plan (SE-3) be revised if a 6-inch reveal is intended?

Summary: The Site Utility Plan requires two secondary electrical services, each utilizing '(6 - 4' PVC CONDUITS)'. According to the 'DUCT BANK DIMENSIONS' schedule, a 6-duct bank of 4' conduits requires a minimum concrete encasement profile of 14½' x 22½' (FIG. 3) or 20½' x 16½' (FIG. 3A). However, the referenced precast transformer pad detail provides...

Why it matters: The precast concrete pad will either arrive on site unable to accommodate the specified electrical service conduits, or the concrete duct bank will need to be improperly reduced or eliminated at the entry point. This requires coordination between the electrical engineer, civil engineer, and precast manufacturer to either increase the pad...

Suggested next step: Please confirm if the transformer pad knockout dimensions (currently 13' x 24') should be increased to accommodate the 6-way 4' duct banks (which require 14.5' x 22.5' or 20.5' x 16.5' minimum), or if the conduits should transition out of the concrete encasement prior to entering the precast pad.

RFI draft: Please confirm if the transformer pad knockout dimensions (currently 13' x 24') should be increased to accommodate the 6-way 4' duct banks (which require 14.5' x 22.5' or 20.5' x 16.5' minimum), or if the conduits should transition out of the concrete encasement prior to entering the precast pad.

Summary: The Sediment & Erosion Control Plan (SE-4) indicates an existing catch basin grade elevation of 'GR=12.39' (with the note 'PIPE'S NOT ACCESSIBLE'). However, the Site Utility Plan (SE-2) identifies the exact same structure with an elevation of 'GR=24.39' (with the note 'PIPE NOT ACCESSIBLE').

Why it matters: A 12-foot difference in existing survey data for a catch basin will impact earthwork calculations, grading limits, and the accurate tie-in of proposed drainage structures. This base survey data must be consistent across the drawing set.

Suggested next step: Please confirm the correct existing grade elevation for the catch basin located near Test Pit 1 (TP#1). SE-4 calls out GR=12.39, while SE-2 calls out GR=24.39. Please update the affected drawings with the correct survey data.

RFI draft: Please confirm the correct existing grade elevation for the catch basin located near Test Pit 1 (TP#1). SE-4 calls out GR=12.39, while SE-2 calls out GR=24.39. Please update the affected drawings with the correct survey data.

Summary: The Site Utility Plan (SE-2) specifies a rim elevation of 26.10 for Junction Box JB#1. However, the Site Grading Plan (SE-I) shows spot elevations of 26.50 and 26.70 in this immediate vicinity (near the canopy/stair 4 walk area).

Why it matters: A manhole rim set at 26.10 would be 0.4 to 0.6 feet below the proposed finished grade, creating a severe depression or trip hazard in the pedestrian walkway/landscape area.

Suggested next step: Please clarify the intended rim elevation for JB#1. Should the rim be raised to match the proposed 26.50 - 26.70 spot elevations shown on the grading plan?

RFI draft: Please clarify the intended rim elevation for JB#1. Should the rim be raised to match the proposed 26.50 - 26.70 spot elevations shown on the grading plan?