SITE / STORM DRAIN • MATERIAL COST ESTIMATE
ScopeReady
PLAZA DI NORTHRIDGE
ROOF DRAIN IMPROVEMENTS • MATERIAL ESTIMATE • REV. 2 — ORIGINAL 6" PLAN DESIGN
19500 Plummer St, Bldg C, Northridge, CA 91324 • Kimco #113360
📈 ESTIMATE SUMMARY
Project
Kimco #113360
Estimate Date
Aug 2026
Raw Subtotal
$3,155
12% Contingency
$379
🆕 Grand Total — Material Only
$3,534
Material ONLY — no labor, no tax, no delivery. Rough public/retail market pricing for budgetary purposes — NOT account pricing with Pace, Ferguson, or Grainger; pull actual account pricing before final bid submission. REVISION 2: RFI for the 4" field-revised routing was answered by Kimley-Horn (Brittany Jaramillo, PE) — cannot approve the reduction without field-confirmed drainage area data (as-built verification not yet completed). This take-off reverts to the ORIGINAL plan-spec'd 6" PVC main design as the safe bid basis given the presentation deadline. If the RFI is later approved on updated data, this estimate will need to be revised back down. Section D (Site/Concrete — sidewalk, curb, isolation joint, siltsack, bollard) excluded from this estimate; excluded from proposal scope per contractor decision, civil work remains with Owner/Engineer's package.
🐥 A. DWV PIPE & FITTINGS — PER ORIGINAL PLAN (6" MAIN)
DescriptionQtyUnit $Ext.
6" Main Run — Junction to Boot
6" PVC DWV pipe — main run, junction to boot ⚠ field verify length90 LF$3.50$315
4" PVC DWV pipe — short stubs, T-1/T-2 outlets to junction ⚠ field verify10 LF$1.00$10
6" PVC 90° elbow8 EA$28.00$224
6" PVC 45° elbow6 EA$22.00$132
6"x4"x4" PVC double wye — combines T-1 & T-2 outlets into 6" main. Not spec'd on plans, contractor to confirm config.1 EA$55.00$55
6" PVC glue coupling5 EA$12.00$60
6" PVC cleanout tee w/ flat cap — base, before boot, accessible1 EA$50.00$50
PVC primer & cement — allowance1 ALLOW$25.00$25
Evergrate E-R6 cast iron downspout boot, 6" x 24" — per plan spec1 EA$180.00$180
Subtotal — DWV Pipe & Fittings$1,051
REV. 2: Reverted to original plan-spec'd 6" PVC main. Kimley-Horn (Brittany Jaramillo, PE) could not approve the 4" field-revised alternative without field-confirmed drainage area data — as-built verification not yet completed. This is the safe bid basis given the presentation deadline; revise down if the RFI is later approved on updated data.
🔧 B. PIPE SUPPORT / HANGER SYSTEM
DescriptionQtyUnit $Ext.
Unistrut, deep — confirm load rating adequate for water-filled 6" run20 LF$7.20$144
Unistrut pipe clamp, 6" Ridgid — size change from 4" to 6"20 EA$16.00$320
Threaded rod + masonry anchors — allowance1 ALLOW$60.00$60
Subtotal — Pipe Support / Hangers$524
⚠ No pipe support/backing detail shown on plans (C1-00, C1-01, C2-00) for this exposed vertical run along the stone/masonry tower face. Anchor type (masonry vs. structural) and load capacity should be confirmed with the engineer before installation — especially relevant now given the heavier water-filled 6" pipe.
🌧 C. TRENCH DRAIN SYSTEM (T-1 – T-4) & CURB CONNECTION
DescriptionQtyUnit $Ext.
Polycast 600N trench drain, 48" (4" bottom outlet) — T-1, T-2, T-3, T-44 EA$200.00$800
Evergrate T-08C Metro 8" wide cast iron grate, Penta-Lock frame — field verify length before ordering4 EA$165.00$660
Evergrate 8" curb opening for trench connection ⚠ plan lists "C-646T" — catalog match for 8" width is C-846T (C-646T is Evergrate's 6" wide unit). Confirm correct P/N before ordering.1 EA$120.00$120
Subtotal — Trench Drain & Curb Connection$1,580
Unchanged from plan — unaffected by the routing RFI resolution. Trench drain / grate / curb opening pricing is typically quote-only through commercial reps — confirm actual cost before final bid submission. Per Sheet C2-00, isolation joint required along trench detail/concrete and vertical structures.
🆕 COST ROLLUP & GRAND TOTAL
A. DWV Pipe & Fittings (6" main, per plan)$1,051
B. Pipe Support / Hanger System$524
C. Trench Drain System & Curb Connection$1,580
RAW SUBTOTAL$3,155
+ 12% Contingency+$379
🆕 GRAND TOTAL — MATERIAL ONLY $3,534
No labor • No tax • No delivery • Rough public/retail pricing, NOT account pricing • REV. 2: reverted to plan-spec'd 6" main — RFI for 4" alternative could not be approved without field-confirmed drainage data • Section D (Site/Concrete) excluded from proposal scope per contractor decision — civil work remains with Owner/Engineer's package • Spot-check flagged lines before bid submittal
🔍 SPOT-CHECK THESE 4 LINES FIRST
RFI Resolved — Reverted to Original 6" Plan Design
Kimley-Horn (Brittany Jaramillo, PE) could not approve the 4" field-revised routing without field-confirmed drainage area data — as-built verification not yet completed. This estimate now reflects the ORIGINAL plan-spec'd 6" PVC main as the safe bid basis given the presentation deadline. Pipe/fittings/hanger costs (Categories A & B) increased from ~$1,356 (4" version) to $1,575 (6" version) as a result.
Resolved
Junction Fitting Not Spec'd on Plans
A 6"x4"x4" PVC double wye is needed to combine the T-1 and T-2 4" outlets into the single 6" main, but this junction fitting/configuration is not called out on the plans. Contractor to confirm exact fitting configuration with the engineer before ordering.
$55
No Pipe Support Detail Shown
No pipe support/backing detail is shown on the plans (C1-00, C1-01, C2-00) for the exposed vertical run along the stone/masonry tower face. Anchor type and load capacity should be confirmed with the engineer before installation — especially now given the heavier water-filled 6" pipe vs. the lighter 4" alternative.
Confirm
Evergrate Curb Opening Part Number Mismatch
Plan callout "C-646T" for the 8" curb opening appears to be a plan typo — Evergrate's own catalog lists C-646T as their 6" wide unit and C-846T as the 8" wide unit compatible with the T-08C system used here. Confirm correct part number with Evergrate/rep before ordering.
Confirm