Main Street Flood Control Project

Project Description:

Over the last few years there have been a few large rainfall events on the Main Street drainage basin that have caused significant runoff events and flooding along Main Street. The two most recent flooding events occurred on July 13, 2018 and August 11, 2018.

Washington City hired Bowen Collins & Associates (BC&A) to analyze the existing storm drainage system within the Main Street drainage basin and develop recommendations for infrastructure improvements to mitigate this flooding along Main Street. Preliminary flood mitigation alternatives were presented to the Washington City Council in a work meeting on August 21, 2018.

At the meeting the City Council requested the BC&A evaluate the following three flood mitigation alternatives further:

• Alternative 1 – Construct new detention basins at Main Street and Buena Vista Blvd
• Alternative 2 – Construct road and storm drain improvements along Main Street
• Alternative 3 – Construct a new flood channel from the intersection of Main Street and Buena Vista Blvd to Mill Creek

This project addresses recommendations from Alternative 2 and includes reconstruction of Main Street to prevent local storm event flooding south of I-15. The project will use the existing Main Street right-of-way to incorporate curb and gutter, inlets to storm drain pipelines, sidewalks, and modifications to the existing roadway cross-section.  The City held a public open house and received comments regarding the proposed project on April 4.  A link showing the concept of the selected road cross-section is below.

Update 12-2-2019: The project is on schedule, the bid opening is being held on Thursday December 5th with award at the December 11th council meeting. We anticipate work to begin sometime in December.

Update 12-24-19: The project was bid and awarded to Interstate Rock. Work will begin on January 7th with a completion date of July 1, 2020.

Update 1-8-2020: Interstate Rock Product, Inc.  has begun construction on the Main Street Flood Mitigation & Improvements Project.  This project will include work on Main Street from Telegraph Street to Buena Vista Blvd.  Interstate has started work and is focusing on the 300 North and 400 North blocks.  They are digging test holes to locate existing utilities in the roadway.  These test holes will help them as they start placing underground improvements as part of the project.  They hope to begin placing underground improvements next week.

Update 01-21-2020

This week the contractor will be focusing on finishing potholing for existing utilities, installation of ne gravity feed irrigation. There will be temporary road closures and detours through the project.

Update 01/30/2020

The Contractor is making good progress on the Main Street construction.  Currently they are working on constructing the new gravity irrigation system to replace the old pipes and ditches that carry irrigation water.  Something new this week is that the Contractor has started to install storm drain pipe to help carry stormwater.   The Contractor will again need to trench across Main Street.  Please avoid the project area if possible.  If you cannot avoid the project area please drive slowly and follow the detour routes.  The detours are put in place to keep people safe.

Update 02/24/2020

The Contractor is continuing work on the gravity irrigation system. They are also installing culinary water and pressurized irrigation water main from 400 N to the south. New culinary water services are being installed as well as new irrigation services for future use. Construction will be going on in multiple areas along Main Street from Telegraph to Buena Vista.  Due to the multiple work locations, Main Street will be closed to through traffic from Telegraph to Buena Vista.  Residents that live on Main Street should drive slowly and be aware of construction equipment as they access their homes.  Residents and Contractors safety is the top priority. 

Update 03/09/2020

The Contractor has finished the gravity irrigation system and it is now in operation. They are continuing to install culinary water and pressurized irrigation water mainlines and services. Construction will require that the segment of Main Street under I-15 to close.  Be prepared to find alternate routes to get from one side of I-15 to the other.  Residents that live on Main Street should drive slowly and be aware of construction equipment as they access their homes.  Residents and Contractors safety is the top priority.

Update 03/26/2020

The Contractor is over half way through installing culinary water and pressurized irrigation water mainlines and services.  While they are installing the culinary water and pressurized irrigation water mainlines they are also installing conduit for communication lines.  When the culinary water and pressurized irrigation water mainlines are completed the Contractor will then move up Main Street to the north side of the Freeway to start installing a new sanitary sewer line.  This phase of the construction will require that the segment of Main Street under I-15 to close.  Be prepared to find alternate routes to get from one side of I-15 to the other.  Residents that live on Main Street should drive slowly and be aware of construction equipment as they access their homes.  Residents and Contractors safety is the top priority.

Update 4/1/2020

The Contractor has installed the culinary water and pressurized irrigation water mainlines along Main Street from I-15 to 100 North.  They hope to be down to Telegraph Street by the end of the week.  After they are finished to Telegraph they will then move up Main Street to the 400 North to start installing a new sanitary sewer line.  It is anticipated that the section of Main Street that runs under I-15 will close as early as Monday 4-6-20 to install the Sanitary Sewer Line.  Be prepared to find alternate routes to get from one side of I-15 to the other.  Residents that live on Main Street should drive slowly and be aware of construction equipment as they access their homes.  Residents and Contractors safety is the top priority.

Update 4/29/2020

The contractor has finished the installation of the culinary water and pressure irrigation mainlines and service connections along the length of the project. For the sanitary sewer line, they have completed the installation from 400 N under the freeway to Buena Vista Boulevard. They are now working on installing the sewer line from 400 N south towards Telegraph Street. Behind the sewer line installation, they are also working on installing the storm drain. Now that the sewer, water, irrigation, and storm drain have been installed from 400 N under the freeway to Buena Vista Boulevard, the Contractor is working on shaping the subgrade in this section.

The section of Main Street that runs under I-15 is still closed.  Be prepared to find alternate routes to get from one side of I-15 to the other.  Residents that live on Main Street should drive slowly and be aware of construction equipment as they access their homes.  Residents and Contractors safety is the top priority.

Update 5/5/2020

The Contractor is continuing their work on installing the sewer line from 400 N south towards Telegraph Street. Behind the sewer line installation, they are also working on installing the storm drain which includes the placement of the median curb and inlets. The Contractor is continuing their work on shaping the subgrade from 400 N under the freeway. They are now starting to work on shaping the subgrade south from 400 N towards Telegraph.

The section of Main Street that runs under I-15 is still closed.  Be prepared to find alternate routes to get from one side of I-15 to the other.  Residents that live on Main Street should drive slowly and be aware of construction equipment as they access their homes.  Residents and Contractors safety is the top priority.

Update 5/19/2020

The Contractor is continuing their work on installing the sewer line from 400 N south towards Telegraph Street. Behind the sewer line installation, they are working on installing the storm drain which includes the placement of the median curb and curb inlets. The Contractor has finished shaping the subgrade from 400 N under the freeway and are paving that section of road this week. They are continuing to over-excavate and shape the subgrade south from 400 N towards Telegraph.

The section of Main Street that runs under I-15 is still closed.  Be prepared to find alternate routes to get from one side of I-15 to the other.  Residents that live on Main Street should drive slowly and be aware of construction equipment as they access their homes.  Residents and Contractors safety is the top priority.

Update 5/27/2020

The Contractor is in the final stages of installing the sewer and storm drain lines from 400 N south towards Telegraph Street. They are continuing to over-excavate and shape the subgrade south from 400 N towards Telegraph. In addition, as they over-excavate, they continue to place the median curb in the middle of the road and pedestrian access ramps at the corners.

The Contractor has paved the section of road from 400 N under I-15 to Buena Vista Boulevard. Even though this section of road has been paved, we ask that you still find alternate routes to get from one side of I-15 to the other. This will allow for the Contractor to do the final work they need to open up this section of road. Residents that live on Main Street should drive slowly and be aware of construction equipment as they access their homes.  Residents and Contractors safety is the top priority.

Update 6/2/2020

The Contractor has finished over-excavating the roadway from 400 N south towards approximately 200 N. They  have placed the median curb and inlets and are finalizing the placement and grading of the untreated base course. From 200 N south towards Telegraph Street, the Contractor is continuing to excavate and remove the excess material in order to shape the road to its final shape.

The section of road from 400 N under I-15 to Buena Vista Boulevard is now open to the public for use. The section from 400 N south to Telegraph is still closed. Residents that live on Main Street should drive slowly and be aware of construction equipment as they access their homes. Residents and Contractors safety is the top priority.

Update:6/10/2020

The Contractor has finished over-excavating the roadway from 400 N south towards approximately 100 N and will be finishing the final section of over-excavation this week from approximately 100 N to Telegraph. The Contractor will continue work on placing road base in preparation for paving and concrete. They are planning on pouring curb & gutter next Wednesday from 400 N to 200 N.

The section of road from 400 N under I-15 to Buena Vista Boulevard is now open to the public for use. The section from 400 N south to Telegraph is still closed. Residents that live on Main Street should drive slowly and be aware of construction equipment as they access their homes. Residents and Contractors safety is the top priority.

Update 6/17/2020

The Contractor has finished over-excavating the roadway from 400 N south to Telegraph. They are continuing their work on placing road base in preparation for paving and concrete. They are currently placing curb & gutter from 400 N to 200 N. They have finished the median curb and will next work on the curb & gutter along the outside portions of the road in this area.

The section of road from 400 N under I-15 to Buena Vista Boulevard is now open to the public for use. The section from 400 N south to Telegraph is still closed. Residents that live on Main Street should drive slowly and be aware of construction equipment as they access their homes.  Residents and Contractors safety is the top priority.

Update 6/30/2020

The Contractor has finished pouring the majority of the median curb and curb & gutter along the length of the project. They will work on finishing up the miscellaneous concrete tie-ins as well as the sidewalk and driveways in the coming days and weeks. They are continuing their work on placing and grading the road base in preparation for paving.

Update: 7/7/2020

The Contractor is continuing to pour sidewalk, driveways, and other miscellaneous concrete tie-ins along the length of the project. They are currently placing concrete along the 200 N to 300 N block and are working south. The Contractor is also on site placing the street light poles and other electrical fixtures along the project. The majority of the road base has been placed and the Contractor is now working on the final grading in preparation for paving in the coming weeks.

Update 7/14/2020

The Contractor is continuing to pour sidewalk, driveways, and other miscellaneous concrete tie-ins along the length of the project. They have generally finished the concrete from 200 N to 300 N and are now working from 200 N south towards Telegraph. The Contractor also worked on paving the first lift of asphalt from 400 N towards 100 N on Monday and Tuesday. Once that first lift of paving is complete, they will go through and raise the manholes and valves in preparation for the final lift of paving.

7/22/2020

The Contractor has finished placing the first lift of asphalt along the entire length of the project. They have also finished raising the majority of manholes and valves in preparation for the final lift of paving. The Contractor is continuing to pour sidewalk, driveways, and other miscellaneous concrete tie-ins along the length of the project. They have generally finished the concrete from 200 N to 300 N and are now working from 200 N south towards Telegraph. Even though the first lift of asphalt has been placed along the entire length of the job, we ask that you still avoid driving through the project area as there is still work that needs to be finished before the project will be completed.

Update 7/29/2020

The Contractor has finished the majority of concrete work from 400 N down to 100 N. They are currently working on placing sidewalk, driveways, and other miscellaneous tie-ins from 100 N to Telegraph. The Contractor is also working on placing landscaping elements such as trees, bushes, and landscape rock from 400 N down to Telegraph. The Contractor is preparing to place the final lift of asphalt this week along Main Street from 400 N to 200 N.

Even though the first lift of asphalt has been placed along the entire length of the job and the second lift will be placed shortly, we ask that you still avoid driving through the project area as there is additional work that needs to be finished before the project will be completed. Avoiding Main Street until it is fully open will help ensure the safety of both the Contractor's crews and the general public.

 UPDATE

 8/5/2020

The Contractor has finished the majority of concrete work from 400 N down to Telegraph and are currently working on placing the concrete crosswalks and miscellaneous tie-ins along the length of the project. They are also placing landscaping elements such as trees, bushes, and landscape rock from 400 N down to Telegraph. The Contractor placed the final lift of asphalt from 400 N to 200 N last week and are preparing to place the final lift from 200 N to Telegraph.

Even though the first lift of asphalt has been placed along the entire length of the job and the second lift will be placed shortly, we ask that you still avoid driving through the project area as there is additional work that needs to be finished before the project will be completed. Avoiding Main Street until it is fully open will help ensure the safety of both the Contractor's crews and the general public.

UPDATE 8/11/2020

The Contractor has finished the majority of the concrete work, street lighting, and landscaping from 400 N down to Telegraph. They are currently placing the final concrete crosswalks and miscellaneous concrete tie-ins along the length of the project. The Contractor has placed the final lift of asphalt along the length of the job and will be placing the new signs and striping shortly.

Even though the asphalt has been placed along the entire length of the job, we ask that you still avoid driving through the project area as there is additional finishing work that needs to be completed. Avoiding Main Street until it is fully open will help ensure the safety of both the Contractor's crews and the general public.

Schedule:

Design Completion: November 2019

Construction Start: January 2020

Construction Complete: June 2020