The City Of Lewiston

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Idaho's Only Seaport
FEMA Storm Drainage Outfalls
Project complete.

Update 8/6/2013:
The Oufall project work is substantially complete!  Thank you to all for your patience and cooperation as the work interrupted the flow of traffic!    The next phase of the stormwater work is installation of the collection system that will convey stormwater to the outfalls and into the Corp ponds.  The collection system work has started and you can follow its progress on the 2009 FEMA Drainage Mitigation, 13th St to 16th St project page.

Click here for an aerial view of the outfall project construction on the Bypass Road and other areas along Main St.

Some final photos of the project:
Paving on Main St

Paving on Main St.

Update 7/29/2013:
The 1300 block of Main Street will be closed from 7:00 am to 1:00 pm Tuesday, July 30, 2013.  M. L. Albright & Sons will be paving a portion of the 1300 block of Main Street.  Detour routes around the work area will be signed and access preserved for local businesses. Dairy Queen’s drive through will remain open.  This work is final paving of the Outfalls portion of the FEMA funded Stormwater Drainage Mitigation project.
Update 7/11/2013:
Final work placing large riprap in the Levee ditch (see picture below) is wrapping up this week as is the backfill and prepping for pavement at the 9th street outfall. Hydro seeding in the Levee park areas disturbed by construction is being coordinated with the Corps of Engineers’ irrigation schedule.  Next time you are in the park area along the bypass, check out the work at the ponds.

 Outfall Paving Levee Bypass and Park.JPG

Work will be reestablished just west of the Main Street/13th Street intersection beginning Friday, July, 12 to place the last manhole and sections of pipe. Both lanes of Main Street will remain open with lanes shifting to accommodate the work zone. Dairy Queen’s drive thru will remain open throughout!

Update 7/1/2013:
The Levee Bypass will be opened to traffic Tuesday, 7/2/2013 at 5:00 AM.  Thank you for your patience during this closure!

Update 6/27/2013:
Work in the Levee Bypass continued this week.  The recent rains caused sufficient delay that a one day extension of the closure is required.  Paving of the Levee Bypass Road is now scheduled for Monday, July 1.  The road will re-open to traffic on Tuesday, July 2.

Stormwater Pipes Under Effluent Line
New stormwater pipes installed under Clearwater Paper's effluent line.

The severe storm that hit downtown Lewiston yesterday (Wednesday, June 26) is a reminder of what this project is designed to mitigate. 

Flooding in Idaho St.
Flooding in Idaho Street

Update June 13, 2013:
Beginning 7:00 a.m. the morning of Monday, June 17, 2013, the Levee Bypass Road/Highway 12 will be closed for 14 days. This closure is necessary to remove pavement, install three large diameter storm drainage systems beneath Clearwater Paper’s effluent line, and repave the highway. The City of Lewiston Public Works Department and the project contractor, M. L. Albright & Sons, will be working thru the weekend to ensure the work is completed as quickly as possible. 

Informational signs with closure dates were installed Thursday, June 13 and detour routes around the work area will be signed. The Corps of Engineer’s walking path along the crest of the levee will remain open to all users throughout the project.

Update June 12, 2013:
Beginning the morning of Thursday, June 13, work will occur in the intersection of Main Street and DelSol Lane requiring closures of both lanes of Main Street.  Work is expected to take one day.  Detour routes will be signed around the work area.

Update May 31, 2013:

Work continues on the bore pit at the intersection of 9th St. and D St.   Photo below is a shot looking over the crane operator's shoulder down into the pit.  You can see a construction worker in the bottom of the pit (look for the vest and white hard hat).

 Bore Pit at 9th and D Sts

During the coming week (June 3) , Delsol Lane and Main Street will be affected while the final stormwater pipes, catch basins, and manhole are installed with work in 13th Street to follow.  Two lanes of traffic will be maintained at both of these work zones.

The photo below shows trenching work in 13th Street.

Trenching in 13th Street

Update May 15, 2013:
Pipe installed and trench backfilled along Bruneel Tire to the north edge of Main Street.

The 13th Street bore under the railroad was completed 5/14/2013. Equipment and crew to be moving to the 9th Street bore pit that is being prepared.

Bore pit preparation began Monday, 5/13/2013 near the intersection of 9th Street and D Street as shown in photo below.

9th and D St Outfall location

Update May 7, 2013:

IMPORTANT SCHEDULING UPDATE:  Providing that all goes as planned, the Levee Bypass will be closed the second and third weeks of June to complete the third and final bore.  If this closure is important to you, please check back for further updates.  You can always give us a call during business hours too!  Or send us an email!

Main St & Jefferson St intersection work has been completed.  The manhole has been installed and the road was patched. 

Aerial view of manhole installation

The boring equipment was moved to the 13th Street outfall location.  The photo below shows an easy entry past the crane in the Cafe' Sage parking lot.  This is a great up-close location to see construction equipment in action, so grab a coffee and pastry or some lunch and sit outside to watch the action! 

Sage Approach.JPG

The railroad remains open during construction.  The photo below shows the train passing over the 13th Street bore.

Train over 13th Bore.JPG

All of the boring work is being completed by the bore casing, head, and augur shown in the photo below.  The inside diameter of the casing is either 48" or 54" depending on the location.  If you are no taller than 4.5" feet, you could stand inside the casing!  That is how big it is!

Boring Head Auger Casing.JPG

Shown below is a 42-inch pipe being installed to replace an existiing 15-inch clay pipe near Bruneel Tire.

Trench installing new storm pipe near Bruneel Tire.JPG

General Description

This project combines construction of the drainage outfalls from the 2009 FEMA project and the 2012 FEMA project (described on separate web pages linked in menu on left) to save on overall construction costs for both projects.

Project Timeframe

  • Bid Awarded by Council Jan. 28, 2013 
  • Construction:
    • Notice to Proceed Issued Mar. 25, 2013
    • Final Payment Anticipated by Aug. 21, 2013

Click Photo to Enlarge
Map of Outfall Locations

Project Manager
Joe Kaufman, PE
Stormwater Program Coordinator

215 D Street
P O Box 617
Lewiston, ID  83501

Public Works Department

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