Downstream Dumbarton Culvert Replacement Addendum 3

Agency: Arlington County
State: Virginia
Type of Government: State & Local
NAICS Category:
  • 237310 - Highway, Street, and Bridge Construction
Posted Date: Nov 14, 2025
Due Date: Nov 21, 2025
Solicitation No: N1247
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Description

Title Downstream Dumbarton Culvert Replacement
Negotiation Type RFQ
Status Active
Buyer Sy Gezachew
Email sgezachew@arlingtonva.us
Synopsis The North Dumbarton Street Culvert (ZSD37) and Watermain (ZR105) Replacements project will replace two double barrel Corrugated Metal Pipe Culverts conveying Little Pimmit Run under North Dumbarton Street with precast concrete arch culverts. Project improvements include culvert replacements, storm sewer improvements, water line relocation, steel encasement of watermain and sanitary sewer line, pavement replacements, guardrail replacement, and landscaping.
Amendment Description Addendum 3
Attachments
N1247 Addendum 3.pdf (150.34 KB)
Attachment A - ZSD37 & ZR105 Pricing Sheet - REVISED.xlsx (30.15 KB)
C091.2 - Landscaping Plan - 2.pdf (3.35 MB)
N1247 Addendum 1.pdf (325.52 KB)
Attachment M_Geotech Report.pdf (2.35 MB)
Attachment L - Temporary Easement - 3905 N Dumbarton Street (Owner Signed).pdf (165.21 KB)
Attachment L - Temporary Easement - 3900 N Dumbarton Street (Owner Signed).pdf (2.63 MB)
Attachment K - LDA Permit Placard (Expires 12.04.2025).pdf (80.11 KB)
Attachment J - List of State and Federal Roads in Arlington County, VA.PDF (68.73 KB)
Attachment I - Master Transportation Plan.pdf (3.37 MB)
Attachment H Template - Force Account Work.xlsx (93.13 KB)
Attachment G - RFI Form Template.pdf (106.31 KB)
Attachment F - VDOT Lane Closure Guidelines_NOVA Dist.pdf (186.66 KB)
Attachment E - Arlington County Materials Testing Specification (September 2020).pdf (164.2 KB)
Attachment D - ZSD37 - Approved Plan (CIP).pdf (48.43 MB)
Attachment D - Approved Plan (LDA) ZSD37.PDF (48.97 MB)
Attachment D - Approved Plan (LDA) ZR105.pdf (16.2 MB)
Attachment C - Supplemental Specification 02506 - PreCast Arch Bridge (Culvert)ZSD37.pdf (250.69 KB)
Attachment B - Special Conditions.pdf (352.04 KB)
Exhibi C - DOLI.pdf (712.75 KB)
N1247 Downstream Dumbarton Culvert Replacement ITB .pdf (1.19 MB)
N1247 Addendum 2.pdf (122.23 KB)
Preview Date 11/13/2025 11:43 AM
Open Date 11/13/2025 11:43 AM
Close Date 11/21/2025 2:00 PM
Posting Date 11/13/2025
Negotiation PDF Download
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