Construction Report for January 23, 2020

To be let:

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: March 2020.   Late start date: July 2020.  

The project involves replacement of an aging bridge on 240th Street. The bridge will be replaced with a cast in place reinforced concrete box culvert.   The project is funded with local secondary road funds.

 

L-B(C274)—73-97, Bridge C274 on Jewell Avenue between 110th Street and 120th Street will be replaced with a precast box culvert. Letting date: March, 2020.   Late start date: July 2020.  

The project involves replacement of an aging bridge with a precast box culvert. The project is funded with local secondary road funds.

 

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, 2020.  

The bridge was closed in 2019 due to failure of substructure components. A new bridge will be constructed in 2020 to replace the old structure.   The project is funded with county bridge funds allocated by Iowa DOT to Woodbury County.

 

 

BROS-SWAP-CO97(140)—SE-97, 200th Street bridge replacement project between the Moville Blacktop and Grundy Avenue. Letting date: June 16, 2020.   Late start date: August 2020.

The bridge was closed in 2019 due to failure of substructure components. A new bridge will be constructed in 2020 to replace the old structure.  The project is funded with county bridge funds allocated by Iowa DOT to Woodbury County.

 

 

BRS-SWAP-CO97(602)—FF-97, D12/110th Street bridge replacement project on corporate line with the City of Pierson. Letting date: June 16, 2020.   Late start date: August 2020.  

The project involves replacement of an 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 the city was eligible.   A new 80’x30’ continuous concrete slab bridge will be constructed on site.

 

Under Contract:

FM-CO97(136)—55-97, D38 HMA resurfacing project between Bronson and the Moville Blacktop. Letting date: December 17, 2019.   Late start date: June 2020.   Contractor: Knife River Corporation of Sioux City, IA.   Contract price:   $1,991,352.65.  

The project involves cold in place recycling of existing pavement followed by an overlay of the pavement with new hot mix asphalt pavement.   The late start date for the project is June 1, 2020.  

 

L-B(C160)—73-97, County Bridge C160 is on Haskell Avenue between 140th Street and Iowa Hwy 141. Letting date: May 7, 2019. Late start date: September 3, 2019. Contractor: Graves Construction of Spencer, IA.   Contract price:   $620,679.27.  

This bridge was programmed for replacement in FY 2019. The existing bridge was destroyed in flooding during a June 2016 storm event. Work is underway.   Channel work under the bridge is complete, the abutments are both complete, precast beams have been set, the deck is formed for concrete and reinforcing steel has been placed.   The bridge deck is ready to be poured when weather conditions allow.   Winter work is allowed on this project.

 

L-FM(D50)—7X-97, D50 Grading for Paving Project on 250th Street from Hwy 31 to County Route L27. Letting date: September 10, 2019.   Late start date: April 13, 2020.   Contractor: Mather Construction Co. Total bid price: $2,031,975.53.   The project involves grading 250th Street east of Iowa Highway 31 for approximately 2.25 miles in preparation for paving the road. The project is funded by the $1.3 million special projects levy.  

The project was let to contract on September 10th and awarded to Mather Construction on September 17th.   The contract was approved by the board on September 24th.   Grading and culvert installation has started. The contractor is working on the east end of the project, just west of Mason Avenue. Clearing and grubbing has started on the whole project corridor. The project work is suspended until spring.   We expect the project to be completed in late summer, 2020.   The road is programmed for paving.   Paving will be done in either FY 2022 or FY 2023 after the grade has had time to settle.

 

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 is complete. Surface HMA placement was completed on Friday, October 25.   Shouldering is complete as are pavement markings.   Some work in the northbound lane needs to be redone. This work will be done in the spring of 2020 before the project is complete.

Work Under Design:

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

1)         The Mason Avenue 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 by the bridge being struck by a large tree.   The county engineer’s office was notified that FEMA has determined that the damage is eligible for repair/replacement assistance. The county road department has filed required documentation requesting assistance from FEMA with eligible costs and has started work on design of a new bridge at this location.   Preliminary design work is underway for a 209’ x 24’ continuous concrete slab bridge that meets the hydraulic requirements of this crossing.   There will still be road grade overflow on both sides of the bridge for extreme flooding, similar to the way the current truss has worked.   We will be submitting the design to FEMA shortly to obtain approval for an improved project.   We expect the bridge replacement project will be undertaken in 2020.