Construction Report for October 18, 2020

To be let:

L-FEMA-B(K46)—73-97, Mason Avenue bridge replacement.   Letting date: November 24, 2020.   Late start date: Spring 2021

The bridge was severely damaged by flooding on the Little Sioux River in July 2018.   The bridge has been closed to traffic due to damage caused when the bridge was struck by a large tree during the flood.   The county engineer’s office obtained FEMA assistance to replace the bridge.  FEMA and SHPO cleared the project for letting on September 17, 2020 and a letting date will be set for late October to mid-November 2020.   Winter work will be allowed and it is hoped that construction will start late this fall.

 

BRS-CHBP-CO97(139)—GB-97, Moville Blacktop Bridge replacement project between US Highway 20 and 160th Street. Letting date: December 15, 2020.   Late start date: Spring 2021

The bridge is funded with Competitive Highway Bridge Program funds administered by the Iowa DOT and allocated to Woodbury County.   This bridge is fully funded with CHBP and SWAP funds.  The project is bundled for letting with a project in Lyon County.    The letting for this project has been rescheduled in cooperation with a request from Lyon County.

 

BROSCHBP-CO97(141)—GA-97, O’Brien Avenue Bridge replacement project between Highway 20 and 160th Street. Letting date: December 15, 2020.   Late start date: Spring 2021.   

The bridge is funded with Competitive Highway Bridge Program funds administered by the Iowa DOT and allocated to Woodbury County.   This bridge is fully funded with CHBP and SWAP funds.   The project is bundled for letting with a project in Lyon County.    The letting for this project has been rescheduled in cooperation with a request from Lyon County.

 

Under Contract:

BROS-SWAP-CO97(140)—SE-97, 200th Street bridge replacement project between the Moville Blacktop and Grundy Avenue. Letting date: August 18, 2020.   Late start date:  April 26, 2021.  Contractor:  Dixon Construction of Correctionville, IA.   Bid price:    $973,490.25.  

The bridge was closed in 2019 due to failure of substructure components.  The project was let to contract and approved by the board of supervisors on September 15, 2020.  Work started on September 28, 2020 starting with removal of the existing bridge and channel work.     The project is expected to be completed in late spring 2021.

 

BROS-SWAP-CO97(135)—FE-97, Hancock Avenue Bridge replacement project between 210th Street and 220th Street. Letting date: June 16, 2020.   Late start date: August 3, 2020.    Contractor:  Dixon Construction of Correctionville, IA.   Bid price:    $603,460.90.  

The bridge was closed in 2019 due to failure of substructure components.  A new single span concrete beam bridge is being constructed in 2020 to replace the old structure.   The project is funded with county bridge funds allocated by Iowa DOT to Woodbury County.   The contract was approved by the board on July 7th.     The contractor has completed construction of the abutments, the precast beams have been set, the deck is formed, and the reinforcing steel is tied and forming the bridge seats is nearing completion.   The contractor plans to pour the bridge deck on Thursday, October 22.      The project is expected to be completed in late November.

 

 

BRS-SWAP-6012(601)—FF-97, D12/110th Street bridge replacement project on corporate line with the City of Pierson.  Letting date: June 16, 2020.   Late start date:  June 20, 2021.   Contractor:  Dixon Construction of Correctionville, IA.   Bid price:    $501,470.00.  

The project involves replacement of a load restricted and aging bridge on the east side of Pierson. The project is being done in cooperation with the city using city bridge replacement funds for which Pierson was eligible.   A new 80’x30’ continuous concrete slab bridge is under construction.   The contractor started work on Monday, September 21st.    All piling are driven.  Pile encasements are poured on both piers.  Both abutments are also complete.   Revetment under the bridge opening is being placed prior to forming the bridge deck.   The contractor anticipates completing the project prior to the end of 2021.

 

L-B (M66)—73-97, Bridge M66 on 240th Street will be replaced with a reinforced concrete box culvert.  The project is between Taylor Avenue and Union Avenue.   Letting date: June 2, 2020.   Late start date:  August 2020.    Contractor: Godberson Smith Company of Ida Grove, IA.   Bid Price: $261,771.85.

The project involves replacement of an aging bridge on 240th Street.  All project work is complete and the road is open to traffic.

 

L-B(C278)—73-97, Bridge C278 on Jewell Avenue between 110th Street and 120th Street will be replaced with a precast concrete box culvert.  Letting date: April 14, 2020.   Late start date:  August 3, 2020.   Contractor:  Dixon Construction of Correctionville, IA.   Bid price:    $175,979.00.  

The project involves replacement of an aging bridge with a precast concrete box culvert. The project is complete and the road is open to traffic.

 

FM-CO97(137)—55-97, K49 HMA resurfacing project between Plymouth County line and county route D12.   Letting date: February 19, 2019.   Contractor:  Knife River.    Woodbury County share of contract price:    $286,297.37.  

This project is being done in coordination with a Plymouth County project on county route K49 in both counties.   The project involves cold in place recycling of the existing pavement followed by an overlay of high performance asphalt surfacing.    The high-performance surface provides a thinner overlay on top of the recycled pavement than standard hot mix asphalt.   This is Woodbury County’s first project using this material. 

            Cold in place recycling was completed last fall.  Surface HMA placement was completed on Friday, October 25.   Shouldering and pavement markings were completed last fall.    Some patching work was necessary this spring due to problems with some of the high-performance asphalt overlay.   These areas have been patched and the surface was planed with a grinder to improve the ride on the repaired areas later this month.

Work Under Design: 

Design work is underway on the following projects for letting in 2020.

1)         Design work is starting on a project to replace the K64 pavement from Highway 141 north to Old Highway 141.  This work includes new pavement through the town of Hornick.    The project is proposed for letting in spring 2021.     

 

Other Projects:

1)         Work on the Iowa DOT bridge project on Highway 141 continues.   County roads including K67, Old Highway 141 and K64 will be used as detours during construction on the project.   The detour started on Monday, May 4th.   A temporary stop sign has been placed for both directions of travel at the intersection of Hancock Avenue and Old 141 during construction to improve safety at this intersection.   It will be a four way stop for the duration of the project.   A fall 2020 completion date is anticipated.

 

2)         Iowa Highway 31 will be closed for repaving in September 2020 between Washta and Correctionville.  During this time, County Route L36 will be used as part of the detour. Right now, we are anticipating the detour started the last week of August and work on the project is underway.  According to Iowa DOT, they were at the halfway point last Thursday, October 15.