Weekly construction updates are provided below. This year’s reconstruction efforts will be focused on Clark Street between NW 103rd Street and NW 105th Street, and on NW 104th Street between Clark Street and University Avenue. The project is proposed to be split into five separate stages to minimize periods of no access to affected individual properties during construction. Please refer to the Aerial Map for Phase 1 for additional information regarding the proposed project area and stage limits.
The project scope as previously defined with input from affected residents in the proposed construction area (refer to this page) will include the following work items:
- Removal and replacement of all street pavement (street width reduced from 31 feet to 26 feet).
- Removal and replacement of sidewalk (sidewalk width increased from 4 feet to 5 feet).
- Removal and replacement of driveway approaches between the sidewalk and back of curb.
- Removal and replacement of all underground public utilities (storm sewer, sanitary sewer, water main).
- Replacement of sanitary and water service lines to individual residences (connections to existing service lines made at back of sidewalk).
- Construction of stormwater biocells between back of curb and front of walk at several key locations.
Construction of Stage 1 is shown on the Aerial Map. Stage 1 will include a complete closure of the intersection of Clark Street and NW 104th Street. The duration of Stage 1 is expected to last approximately eight (8) weeks dependent on underground utility conflicts and weather conditions moving forward. The reopening of the Clark and NW 104th intersection is required before work may begin on any other stage.
Please refer back to this page for periodic updates during construction. To sign up for email updates, email firstname.lastname@example.org.
12/4/2020: All remaining sidewalk sections in Stage 3 were completed earlier this week. Backfilling and sodding operations followed immediately and continued through the end of the week. The Contractor is currently resetting mailboxes to individual residences at the back of new curb. This is the final work item that needs to be completed prior to reopening Clark Street to through traffic. The reopening is currently expected to occur before the end of the day tomorrow, Saturday, December 5th. There may still be some congestion in the area at times next week as a few construction odds and ends are wrapped up and the erosion control subcontractor returns to complete hydro-mulching of any remaining disturbed areas.
Construction will resume under traffic in Stage 3 again next spring when bioswales are constructed in several areas between the back of curb and front of sidewalk. The Contractor will also continue full reconstruction operations east of the NW 104th and Clark Street intersection up the hill past NW 103rd Street at that time. This is the last weekly update expected until those operations resume in 2021.
11/27/2020: Wet conditions earlier this week delayed paving operations. Driveways were poured today and remaining sidewalk sections are expected to be completed tomorrow. Backfilling and restoration efforts will continue early next week. As mentioned previously, because of cooler temperatures this time of year it will take several days for the new driveways to cure before they can be driven on. Affected residents will be notified when their driveways are again available for use – hopefully by late next week. There is the possibility that one end of Stage 3 will be reopened for local access prior to reestablishing through traffic depending on what final work items are still being completed.
11/20/2020: Mainline paving of Stage 3 was completed this week. The paving subcontractor is expected to return to the job site tomorrow to seal joints on the new slab. Set up and pouring of driveways and sidewalk is expected to start next week.
11/13/2020: The paving subcontractor is expected to return to the site either this weekend or early next week to trim the newly placed rock subbase. Mainline paving of Stage 3 is expected to follow next Wednesday, November 18th dependent on weather. With the cooler tempertures this time of year, the new slab will need several days to cure before equipment will be allowed to run on it. With that in mind, the week of November 23rd is the earliest that driveway and sidewalk replacement is expected to be underway.
11/6/2020: With the completion of storm sewer pipe and intakes this week, all underground utilities in Stage 3 are now complete. The Contractor’s focus has now shifted to readying the grade for paving. These operations are expected to be ongoing next week as weather conditions allow and include the following work items: hauling off excess material, cement treatment of the subgrade, installation of longitudinal subdrain and placement of subbase rock.
10/30/2020: The new section of water main was connected to the City’s system on the west end of Stage 3 this past Monday. The Contractor then started on the installation of storm sewer pipe heading west to east through Stage 3. Storm sewer work will continue in this same area next week.
10/23/2020: Water service lines to individual residences in Stage 3 were cut over to the new main this week. As a result, the Contractor’s focus will now shift to tying this section of new main into the City’s existing system on the west end of Stage 3. This tie over is scheduled for 1:00 pm next Monday, October 26th and will require a short outage period (4 to 6 hours) during which residences in the immediate vicinity of the connection point will be without water while the work is completed. The Contractor provided advance notification this afternoon to all residences impacted by this planned outage. Every attempt was made to make that contact in person. An informational mailer was left on the door of all other residences with the date and time of the proposed service shutdown. Once the work is complete and the system has been reconnected, there may be air in the water service lines during the first use that will need to bleed out. In very short order, the system should function normally with no other long term affects or complications.
Once the water main tie in has been completed, construction of new storm sewer will start at the west end of Stage 3 and head upstream from there to the east.
10/16/2020: The new water main in Stage 3 passed pressure testing and the first round of disinfectant testing this week. The Contractor is currently awaiting results of the second disinfectant test prior to returning to the job site next week to begin water service line connections and storm sewer construction.
10/9/2020: Stage 2 of construction on NW 104th Street between Forest Circle and University Avenue reopened this afternoon. As a result, traffic in both directions on NW 104th Street between University and Clark has been reestablished.
All sanitary services in Stage 3 west of NW 104th Street were switched over to the new main earlier this week. The majority of new water main has also been laid, working from east to west in this same area, with completion expected by the end of day tomorrow. The new main will be disinfected and pressure tested next week. Underground utility work in the form of water service connections and storm sewer construction will be ongoing through the end of the month.
10/1/2020: Work on sanitary sewer in Stage 3 west of NW 104th Street is nearing completion with remaining services expected to be cut over to the new main by the end of the week. Next week, the focus will shift to water main construction at the back of curb on the north side of the future street. Services to individual residences will not be switched over until testing of the newly constructed line has been completed.
Grading/backfilling of curb, sidewalk ramps, and intake inserts were completed this week in Stage 2 near University Avenue. Remaining work requiring completion before reopening this stage includes sidewalk construction, restoration (topsoil/sod) and pavement markings. Crews will continue work on these items with the goal of reopening Stage 2 by the end of next week.
9/25/2020: The mainline section of NW 104th Street between Forest Circle and University Avenue (Stage 2) was paved on Monday. Crews are expected to return to the area yet today or tomorrow to begin backfilling curbs and prep the area for the construction of new sidewalk sections. Additional grading/restoration and pavement markings will need to be completed prior to the reopening of Stage 2.
Underground utility work continues in Stage 3 west of NW 104th Street. The first run of sanitary sewer main on the east end of the Stage has been completed. Once the remaining street pavement has been removed, crews will move to the west end of the Stage to set the downstream manhole of the second run of sanitary sewer main. New sanitary services to individual residences will be switched over to the new main as work progresses to the east. Residents in the affected area should not experience any interruption to sanitary service during these operations.
9/18/2020: Work in several Stages of the project was completed this week:
- Stage 1 – Restoration of disturbed areas with sod.
- Stage 2 – Preparation of subgrade, installation of subdrain and placement of subbase rock. The paving subcontractor is on-site and anticipates being ready to pave this short stretch of NW 104th Street between Forest Circle and University Avenue early next week.
- Stage 3 – Replacement of sanitary sewer main from east to west on this newly closed section of construction on Clark Street west of NW 104th Street. Underground utility work will continue in this area through at least the middle of October.
9/11/2020: Rainy weather slowed progress this week. The Stage 3 closure on Clark Street between NW 104th and NW 105th Streets is now scheduled to be in place starting next Monday, September 14th. Reconstruction of underground utilities will proceed in Stage 3 while the remaining pavement preparation items outlined in last week’s update are completed in Stage 2 on NW 104th St. near University Ave.
9/3/2020: Underground utility work in Stage 2 is nearing completion this week. The new water main on the west side of the street will be cut over to the existing main on University Avenue upon completion of final testing. Intakes connecting new storm sewer runs and removal of all remaining street pavement are also expected to be completed by the end of the week. Additional work to be completed in Stage 2 prior to mainline paving includes the following items: final grading, subgrade preparation, installation of longitudinal subdrain, and placement of rock subbase.
Underground utility work in Stage 3 west of the NW 104th and Clark intersection is scheduled to begin next Wednesday, September 9th. Once underway, a full closure of Clark Street between NW 105th and NW 104th Streets will be in place.
8/27/2020: Stage 1 of construction reopened this morning at 8:00 am. As mentioned in last week’s update, this reestablishes the north, south and east movements out of the intersection of NW 104th and Clark. This reopening also allows east/west travel between NW 114th and NW 100th by detouring off of Clark at NW 107th Street and NW 104th Street and using Elmcrest Drive to the south. Stage 2 between Forest Circle and University Avenue has now closed and as a result the Contractor is able to proceed with underground utility work in this area yet this week.
8/21/2020: Several additional street, sidewalk and driveway pours were completed this week on NW 104th Street. Remaining work requiring completion prior to the reopening of Stage 1 includes sidewalk on the west side of NW 104th , ADA sidewalk ramps at intersections and sideroads, pouring of intake inserts and backfilling all disturbed areas. Once Stage 1 is reopened, direct access to University via NW 104th will not be established until work in Stage 2 between Forest Circle and University is completed. The Contractor will next move to this stage a little further south on NW 104th Street to complete underground utility work (water main and storm sewer) prior to prepping that short stretch of NW 104th Street for paving. At that point, work is expected to occur concurrently in Stage 2 and Stage 3 (on Clark Street between NW 104th and NW 105th).
The reopening of Stage 1 will reestablish the north/south movement through the Clark and NW 104th intersection from/to Elmcrest Drive. Access onto and off of University can then be gained via either NW 109th or NW 114th by traveling east/west on Elmcrest. The east turn movement onto Clark from NW 104th will also be reestablished to allow better access to and from NW 100th Street to the east. The west turn movement onto Clark from NW 104th will not be reestablished at this time since work in Stage 3 will be proceeding in this area in the very near future.
8/14/2020: Paving crews completed the east leg of the intersection of Clark and NW 104th and the connection to Elmcrest Drive earlier this week. The west leg of the intersection is being paved this afternoon. Remaining paving includes the north half connection to Forest Circle as well as all driveways and sidewalks in Stage 1. Crews will continue work on these items with the goal of reopening the intersection of Clark and NW 104th by the end of next week. While the current extended forecast looks favorable, any unexpected heavy or extended rain events may cause delays.
8/7/2020: Mainline paving of NW 104th Street from Clark Street to Forest Circle, originally scheduled to occur yesterday (postponed due to rain), is currently underway and expected to be completed by mid-afternoon. The paving subcontractor will remain on-site next week to complete additional hand pours at the Clark and NW 104th intersection and at connection points to Elmcrest Drive and Forest Cir. All impacted driveways and sidewalk sections in Stage 1 will also need to be replaced prior to reopening.
7/31/2020: The mainline paving of NW 104th St between Clark St and Forest Cir is expected next week after placement and trimming of rock subbase. Paving operations will be ongoing after that as new pavement sections cure with intersection pours at Clark St, Elmcrest Dr and Forest Cir (north half) as well as replacement of all impacted sidewalk and driveways in Stage 1. MidAmerican’s gas contractor is again expected on site to hopefully wrap up relocations on Clark St west of NW 104th St.
7/24/2020: Final grading of Stage 1 is now complete. The subgrade has been treated with cement and is being tested for strength today with subdrain installation behind the back of future curb scheduled to follow beginning tomorrow. Next week, crews will be on-site to place and trim rock subbase. The paving subcontractor is expected to mobilize to the job site before the end of next week in advance of mainline paving operations the week of August 3rd. MidAmerican Energy’s gas contractor will also remain on-site next week working on gas main relocations in Stage 3 on Clark St., west of NW 104th Street.
7/17/2020: Now that Stage 1 pavement removals have been completed, finish grading and subgrade preparation operations will continue next week on NW 104th Street. Additional work items expected in Stage 1 prior to mainline paving include installation of subdrains at the back of future curb and placement of rock subbase.
An additional water main cut-over to connect to the existing system in the NW corner of the intersection of Clark and NW 104th is scheduled to take place next Monday afternoon. All impacted properties in the area subject to a short outage while this work is completed have been notified.
A contractor for MidAmerican is also on-site relocating gas mains on NW 104th St. and on Clark St. west of the intersection. This work will be completed in the existing right-of-way and should not impact access to individual residences.
7/10/2020: Water main cut-overs to the new main on NW 104th Street were completed yesterday at Elmcrest Drive and today at Forest Circle. As a result, underground utility work in Stage 1 is now complete. Starting next Monday, crews will remove all remaining street pavement on NW 104th St. from the centerline of Forest Cir. north through the Clark St. intersection. One lane of traffic will be maintained into and out of Forest Cir. for local access. Later in the week, grading and subgrade preparation operations are expected to be underway.
7/2/2020: Storm sewer construction continued this week on NW 104th Street with pipe completed south up the hill to the Faith Lutheran Church driveway. Remaining storm sewer segments including intake and manhole structures connecting the system are expected to be completed by the middle of next week. These final pipe segments include a connection between structures in the southeast corner of the NW 104th and Clark intersection after resolution of a gas main conflict there earlier this week. Focus will then shift to remaining utility work in Stage 1 including the water main cutovers at Elmcrest and Forest and installation of subdrain behind the future back of curb.
6/26/2020: Storm sewer construction continued this week in and around the NW 104th and Clark Streets intersection. Two intake structures in the east leg of the intersection were poured and storm sewer continued to be laid up NW 104th St. to the south. This work will continue next week when a subcontractor is also expected to mobilize to the job site to help complete additional intake structures in this same area.
A note regarding project schedule. The initial indication when construction started earlier this year on April 20th was that work on Stage 1 would take approximately eight weeks to complete. Today marks the end of the tenth week of construction. The delays experienced to date are directly related to the number of existing utilities (public and private) that the Contractor has been required to work around on a daily basis. This is a reality when undertaking a complete reconstruction project in an already developed urban area and was not entirely unexpected. Map locates for all affected utility companies were provided during the design process and identified to the greatest extent possible on the final plans. Some relocations of private utilities were completed this spring prior to the start of construction and others have been scheduled and will continue to be scheduled as needed during construction. With the sheer number of utilities involved, it was not possible to relocate every single one prior to construction in order to provide a “clear” job site for the City’s contractor to work in.
Unfortunately, utility lines that are unknown, undocumented or unmarked are also occasionally encountered. This was the case last Saturday when an unknown water main crossing the south leg of the intersection was hit causing an unplanned outage for several residents while emergency repairs were made. There were simply no records in the City’s system that this short section of live main crossed NW 104th St. and dead ended in the SE quadrant of the intersection. The Contractor has been diligent in their work efforts often hand digging in areas where several utility lines are marked. This process becomes infinitely more difficult when something entirely unexpected is encountered.
Looking forward, the Contractor is hopeful that the remaining underground utility work in Stage 1 can be completed in the next three weeks (approximately July 17th). At that point, the paving subcontractor will need up to four weeks (approximately August 14th) to complete mainline paving, sidewalks and driveways prior to reopening Stage 1 including the intersection of NW 104th and Clark. These dates are best approximations based on how things have proceeded to date and do not include any future loss of time due to extended periods of inclement weather or any additional delays out of the Contractor’s control.
At this time, all parties involved remain committed to completing the first three stages of construction this year.
6/19/2020: The water main tie over in the NE corner of the NW 104th and Clark Street intersection was completed Tuesday of this week. The Contractor has since resumed laying storm sewer across the intersection to the south with construction to continue out of the intersection up NW 104th Street. Additional water main cut overs are anticipated at Elmcrest Drive and Forest Circle in the next week to ten days as construction continues in this direction. Again, the Contractor is required to provide at least 24 hours advance notification to any residents impacted by a planned water service outage.
6/12/2020: The new water main on NW 104th Street passed its final round of bacteria testing earlier today. As a result, the Contractor’s focus will now shift to tying this new main into the City’s existing system. The first tie over will be made on Clark Street to the east of the intersection. Additional connections to the new main in the near future will also occur on Elmcrest Drive and Forest Circle.
These tie overs will require short periods of time (4 to 6 hours) during which residences in the immediate vicinity of the connection point will be without water service while the work is completed. The Contractor is required to provide at least 24 hours of advance notification to all residences impacted by any planned outages. Every attempt will be made to make that contact in person. An informational mailer will be left on the door of all other residences with a date and time of the proposed service shutdown. Once the work is complete and the system has been reconnected, there may be air in the water service lines during the first use that will need to bleed out. In very short order, the system should function normally with no other long term affects or complications.
Once this remaining water main work in Stage 1 is completed, the Contractor will proceed with storm sewer and intake construction heading south out of the NW 104th and Clark Street intersection. The existing traffic control and closure areas will remain in place during these operations.
6/5/2020: Water main testing continued this week on NW 104th Street. Once the new sections of main were initially filled for testing, pressure was not maintained in the system at the levels or for the duration required to pass the test. Several sections of pipe were re-excavated until a leaking joint was eventually found and repaired. Two additional rounds of bacteria testing are currently underway prior to switching over service lines and retiring the old main in this stage of construction.
5/29/2020: Water main testing is currently underway and will continue into early next week. Once completed, service lines to individual residences on NW 104th Street are expected to be switched over to the new main prior to continuing with additional water main east of the intersection of NW 104th and Clark.
5/22/2020: Water main construction continued this week in the west right-of-way on NW 104th Street between Clark Street and Forest Circle. Not as much construction activity is expected next week while the new water main is filled and undergoes pressure and disinfectant testing. Once those tests have passed, service lines to individual residences will be switched over to the new main. Future utility work in Stage 1 will include continuing with water main east of the intersection and storm sewer south of the intersection. The same traffic control and closure areas associated with work in Stage 1 are expected to remain in place for the next several weeks.
5/15/2020: This week crews concentrated on laying new water main out of the Clark and NW 104th intersection to both the south and east. Because of a conflict between the proposed storm sewer and the existing water main, the new main to the east must be completed and cut back over to the existing main before storm sewer work in and around the intersection can resume. As they are completed, all new water main sections are required to pass disinfectant and pressure testing before service lines to individual residences are switched from the old main to the new main. Underground utility work will continue next week in the same area.
5/8/2020: The Contractor continues to work on storm sewer and water main construction in and around the intersection of NW 104th and Clark. The number of private utility lines in the area, while not unexpected, continues to hamper progress somewhat. The street light in the NW corner of the intersection will be removed next week and it is anticipated that the three additional lights to the west on Clark Street will be removed at the same time since they are on the same circuit. These lights are in conflict with future work on Stage 3 and would need to be removed sooner rather than later regardless.
5/1/2020: Underground utility work continues in Stage 1 of the project on NW 104th Street between Clark and Forest Circle. Replacement of the sanitary sewer main is expected to be completed early next week followed by reconstruction of storm sewer lines and intakes. Work will continue in Stage 1 for the next several weeks with no major changes to traffic control or closures anticipated.
4/24/2020: The Contractor mobilized to the site earlier this week and closed NW 104th Street between Clark Street and Forest Circle. Replacement of sanitary sewer main started at the intersection of NW 104th and Clark and proceeded south up the hill towards University Avenue. Progress starting out has been slow because of the number of private utilities (gas, electric, phone, fiber optic, etc.) in the street right-of-way. The replacement of public utilities (sanitary, storm and water) will continue in this first stage of the project for the next several weeks.
4/10/2020: Based on discussion at last night's City Council meeting, the decision has been made to start construction of the project on Monday, April 20th. The first Stage of construction will be on NW 104th Street and will include the full closure of the NW 104th and Clark Street intersection (refer to the aerial map link below). Staff and the Council believe that the work can be done safely while we all practice good social distancing and protect public health. The City will continue to carefully monitor construction and the directives from public health officials to protect the health of residents and workers. Please check back here for weekly updates once construction commences.
3/20/2020: Due to the ongoing public health emergency, the City is postponing the start of Phase 1 of the Clark Street reconstruction. Information will be shared with residents as the CIty takes additional steps to protect public health and make progress on this important infrastructure project. We appreciate your patience and understanding.
3/11/ 2020: The City hosted a meeting with property owners along Clark St. and 104th St. who will be affected by the first phase of the larger Clark St. reconstruction project. Topics included garbage pickup, mail delivery, school bus stops, parking, and the timing of road closures.