Site work and paving for a civil project in Sibley, Iowa. Completed plans call for site work for a bridge / tunnel; for paving for a bridge / tunnel; and water / sewer project.

Sealed bids will be received by mail or drop box at the Office of the Auditor of Osceola County Courthouse, Sibley, Iowa, for the furnishing of materials and construction of cleanout of the Drainage District No. 43 Open Ditch, Drainage District No. 43 Parallel Tile Improvement, Drainage District No. 9 Main Tile Improvement and Drainage District No. 9 Lateral 2 Tile Improvement, Osceola County, Iowa. Interested contractors may submit bids for construction of a High Density Polyethylene (HDPE) Drain Tile System (Base Bid) and/or Reinforced Concrete Pipe (RCP) Drain Tile System (Alternate Bid). The Osceola County Board of Supervisors acting as Trustees of Drainage District No. 43, Drainage District No. 9, and Drainage District No. 9 Lateral 2, will meet on August 11, 2020 at their regular meeting time for the purpose of considering said bids. Section 1: Drainage District Improvements No. Item Unit Estimated Quantity Division 1: DD43 Open Ditch 11.01 Mobilization JOB 1 11.02 Open Ditch Excavation CY 2,377 11.03 Spoil Bank Leveling (Two Sides) STA 8.26 11.04 Furnish & Install CMP Surface Drain 15" Dia. LF 40 11.05 Furnish & Install CMP Tile Extension 12" Dia. LF 20 11.06 Furnish & Install CMP Tile Extension 48" Dia. LF 20 11.07 Topsoil Strip, Stockpile & Respread LF 826 11.08 Furnish & Install Riprap TN 30 11.09 Furnish & Install Grade Checks TN 20 11.10 Remove & Dispose Existing 42" CMP Pipes EA 3 11.11 Open Ditch Fertilizing & Seeding STA 8.26 Division 2: DD43 Parallel Tile Improvements 12.01 Mobilization JOB 1 12.02 Agricultural Drain Pipe, 24" Dia. LF 6,021 12.03 Agricultural Drain Pipe, 36" Dia. LF 466 12.04 24" Dia. Elbow Section, Fabrication Only EA 5 12.05 36" Dia. Elbow Section, Fabrication Only EA 3 12.06 72" Dia. Junction Structure EA 2 12.07 Misc. Drain Tile Repairs & Connections EA 8 12.08 District Lateral Tile Repairs & Connections EA 3 12.09 Connect to Existing 24" Main EA 1 12.10 Connect to Existing 30" Main EA 1 12.11 18" Sta. 24+00 &36+00 EA 2 12.12 Crush & Bury Existing Tile LF 466 12.13 Tile Abandonment (Grout) JOB 1 12.14 Surface Intake - 18" Dia. EA 1 12.15 Topsoil Strip, Stockpile, Respread LF 6,847 12.16 Tile Trench Stabilization & Cradling Rock TN 97 12.17 Spot Tile Exploration HR 12 12.18 Tree Removal JOB 1 Division 3: DD9 Tile Replacement Improvement 13.01 Mobilization JOB 1 13.02 Agricultural Drain Pipe, 8" Dia. LF 1,290 12" Dia. RCP For Alternate Bid 13.03 Agricultural Drain Pipe, 10" Dia. LF 900 12" Dia. RCP For Alternate Bid 13.04 Agricultural Drain Pipe, 15" Dia. LF 1,462 13.05 Agricultural Drain Pipe, 24" Dia. LF 1,754 13.06 Agricultural Drain Pipe, 30" Dia. LF 9,619 13.07 15" Dia. Elbow Section, Fabrication Only EA 1 13.08 30" Dia. Elbow Section, Fabrication Only EA 11 13.09 72" Dia. Junction Structure EA 1 13.10 Misc. Drain Tile Repairs & Connections EA 38 13.11 District Lateral Tile Repairs & Connections EA 6 13.12 8" Dia. Tile End Cap EA 1 13.13 Crush & Bury Existing Tile LF 14,968 13.14 Tile Abandonment (Grout) JOB 2 13.15 Topsoil Strip, Stockpile, Respread LF 15,014 13.16 Tile Trench Stabilization & Cradling Rock TN 225 13.17 Aggregate Backfill Material, Class 1 TN 211 (Base Bid Only) 13.18 Surface Intake - 8" Dia. EA 2 13.19 Surface Intake - 18" Dia. EA 3 13.20 Fence Cuts EA 2 Division 4: DD9 LAT2 Tile Improvement 14.01 Mobilization JOB 1 14.02 Agricultural Drain Pipe, 15" Dia. LF 2,190 14.03 15" Dia. Elbow Section, Fabrication Only EA 2 14.04 Misc. Drain Tile Repairs & Connections EA 5 14.05 15" Dia. Tile End Cap EA 1 14.06 Crush & Bury Existing Tile LF 2,190 14.07 Tile Abandonment (Grout) JOB 1 14.08 Topsoil Strip, Stockpile, Respread LF 2,190 14.09 Tile Trench Stabilization & Cradling Rock TN 30 Division 5: Secondary Road Crossings 15.01 Open Cut, 30" Dia. Ag. Drain Tile, 160th St. LF 66 15.02 Open Cut, 30" Dia. Ag. Drain Tile, Redwood Ave. LF 66 15.03 Surface Intake - 12" Dia. EA 1 15.04 Surface Intake - 15" Dia. EA 1 Section 2: Jack & Bore Road Crossings No. Item Unit Estimated Quantity Division 1: DD43, HWY 59 Crossing, IDOT 21.01 Jack & Bore, 42" IDOT Steel Casing LF 110 21.02 Traffic Control JOB 1 Division 2: DD9, HWY 9 Crossing, IDOT 22.01 Jack & Bore, 36" IDOT Steel Casing LF 110 22.02 Surface Intake - 18" Dia. EA 1 22.03 Traffic Control JOB 1 Division 3: DD9 LAT2, HWY 9 Crossing, IDOT 23.01 Jack & Bore, 18" IDOT Steel Casing LF 110 23.02 Surface Intake - 12" Dia. EA 1 23.03 Traffic Control JOB 1 Division 4: DD9, CO. HWY L44 Crossing, IDOT 24.01 Jack & Bore, 32" IDOT Steel Casing LF 100 24.02 Surface Intake - 6" Dia. EA 1 24.03 Surface Intake - 15" Dia. EA 1 24.04 Traffic Control JOB 1