city of wray main street water line project monthly
TRANSCRIPT
City of Wray - 245 W. 4th Street, Wray, Colorado - Main Street
Water Line Project
Engineering Support Services, Inc.
Monthly Progress Report
General Contractor:
Prepared by:
Engineering Support Services Inc. Golden, Colorado 80401
City of Wray - 245 W. 4th Street, Wray, Colorado - Main Street Water Line Project
Engineering Support Services, Inc.
Project Executive Summary:
Construction continues to stay on schedule, but not without some minor inconveniences at the Republican River and stretch of Main Street between 5th & 6th Street. The Thanksgiving Holiday weekend and upcoming project shutdown between Christmas & the New Year has placed additional requirements on the project team to stay on track and minimize community disruption during the holiday break.
Main Street has been paved through the intersection at 6th Street up to the first driveway entrance of Appearance Edge. Remaining paving operations in this area through to 7th/Kitzmiller Street will be completed once the team is able to schedule city wide water shutdown to tie into the existing city water main which is tentatively scheduled towards the latter part of January 2021.
Zak Dirt has requested that the November Pay Application be combined with December and submitted in the new year. The project team found no issues with this request and will be audited and processed in January 2021.
Constructing wall forms for concrete placement on southern side of Republican River w/completed floor.
Completed demolition of north side of existing box culvert at the Republican River
Construction Progress Summary:
Week of December 1
• The last 13 feet of concrete was poured for the floor box (southern side) at Republican River including 84 feet of southern box culvert wall. Pipeline crews opened two exploratory holes on the south side of river to identify elevation and horizontal location of existing concrete storm pipe that interconnects the new storm south of Hwy. 34.
• The construction team continued to prepare the area between 5th to 7th for placement of concrete pavement, bulb-outs at 5th Street intersection including saw-cutting at the intersection of 6th street for proposed storm drain pans.
• Pipeline crews installed a new sanitary sewer service line for 610 Main Street that was damaged and then determined to be in poor condition due to tree root damage. The team decided it was best to replace the entire line from curb to curb and avoid future excavation of area once new pavement and infrastructure was installed. Approximately 60lf of schedule 40 pipe, provided by the city, was used, and installed by the pipeline crew.
• 4D Electric completed running all new underground conduit between 5th to 7th and installed a few of the light pole sono-tubes and required hand holds to pull electrical wiring.
City of Wray - 245 W. 4th Street, Wray, Colorado - Main Street Water Line Project
Engineering Support Services, Inc.
4D Electric installing conduit for light poles south of 5th
Week of December 7
• Construction team installed a 33” diameter HDPE diversion pipe into the southern side of newly poured concrete box floor and successfully diverted upstream river flows into the pipe using concrete barriers, heavy mill plastic, sandbags and rock. The northern existing diversion pipe that was used to assist with completion of southern side was removed, and crews started demolition of the northern existing box culvert. All unsuitable soil and existing debris (concrete, asphalt, etc.) was hauled off for further processing.
• The street block from 5th to 6th was poured in three separate sections due to superelevation of roadway grades. Approximately 207cy of concrete was placed for the east and west outside lanes and approximately 200cy of concrete was placed for the last center lane, including the remaining 1/2 side of intersection at 5th Street. Due to the street superelevation of this block section, the roadway crew assembled the "Metal Forms Corporation Speed Creed" (https://www.metalforms.com/C/10/ConcreteFinishing) to assist with concrete placement and implementation of “THAWZALL” to prepare roadway sub-base prior to concrete placement. The “Speed Creed” is a simple motor-powered mechanism that allows the placement of concrete to be formed in a consistent manner across a uniform width. The “THAWZALL TCH250” is a standalone unit that uses heated glycol to run through hoses that are coiled in a serpentine fashion within the area of frost and then covered with concrete blankets prior to concrete placement. The system can thaw up to 6000 square feet of ground using up to five 600-foot hoses in five different zones with a temperature range from 70F to 200F (http://www.thawzall.com/products/heat-zone- tch250/).
• The newly installed 8-inch C900 waterline system between the intersection of 6th Street up to the first driveway entrance of Appearance Edge 7th was tested for 2 hours at 150psi and successfully passed. Water samples were submitted and tested by CDPHE (Sterling, CO) for bacteria and all samples came back negative. Crews were then able to install new water line services and abandon the existing water service lines within this area.
• 4D Electric installed the remaining sono-tubes from 5th to 6th and all were filled with concrete. Final installation of light poles, along with the wiring for the southern part of the project, Hwy. 34 to Kitzmiller Street, will be completed in January.
Engineering Support Services, Inc.
Cliff Theatre original painting scheme
Week of December 14
• A cold front came through this week and hampered operations significantly. However, crews continued to move forward and were able to keep the construction site clear of snow and ice. The entire construction project team was focused on the river crossing to remove the remaining existing concrete box culvert on the north side of the Republican River, placed pumps to de-water the area and sandbags in areas deemed necessary to further assist with controlling river flows. The remaining other ½ of steel casing sleeve was installed and welded to the southern ½ that was installed during southern box operations. The welder also installed cathodic protection for the steel pipe casing to prevent corrosion of steel material.
• Construction crews removed all remaining unsuitable material (soil, rock, etc.) and existing sub-base of northern ½ of the Republican River. The floor was graded and subsurface prepared with engineered soil for construction of rebar cage. Crews also removed the concrete forms that were used when placing concrete on the new southern box wall.
• The project team met onsite to discuss last week’s placement of concrete between 5th & 6th Street. The team identified that some of the new concrete panels showed signs of unusual deformation. There are several theories being discussed, such as, improper fly- ash material or aggregate that was not properly prepared and if NCA (non-chlorinated accelerant) could have been used to assist with curing of concrete. However, all concrete samples and testing shows that the strength of concrete was not impacted. The project team is currently continuing to discuss and coordinate with concrete supplier to determine what may have caused these deformations. Regardless of deformations the construction team will remove and replace all concrete panels deemed not to meet construction standards.
• The construction team installed the rebar cage for the last section of north downstream spill slab and north upstream spill slab. Approximately 60cy of concrete was placed and formed to complete the northern floor slab for the new box culvert at the Republican River.
• Pipeline crew installed approximately 40lf of 8-inch C900 pipe, including stainless steel sleeve spacers, through the new steel sleeve casing. This included rubber terminating boots at ends of casing, 45d elbows on south and north side of new box culvert floor to catch 5ft cover of normal waterline trench towards Hwy. 34 and 90d elbow on the north side to catch 5ft of normal waterline trench cover towards 2nd. Street.
City of Wray - 245 W. 4th Street, Wray, Colorado - Main Street Water Line Project
Engineering Support Services, Inc.
• Concrete crews continued with utilization of the "THAWZALL TCH250” unit to remove ground frost between 6th to 7th ahead of concrete pavement placement. Approximately 60cy of concrete was placed and formed for west side from 6th Street to an area just north of Kitzmiller Street.
• The 7-day concrete test results for the southern floor and wall were above the 75% minimum of 3375psi, with test cylinder ranging from 4040 to 6980psi. The 28-day concrete results also show that pavement from 4th to 5th were above the 4500psi requirement and ranged from 4710 to 6340psi.
Concrete placement of northern ½ open channel bottom @ Republican River
Implementation of “THAWZALL” to prepare roadway sub-base prior to concrete placement
Week of December 21
• Construction team completed the placement and forming of concrete pavement on the east side and middle section between 6th to 7th Street with approximately 160cy of concrete. The remaining intersection will be paved once the new waterline is tied into the existing waterline. This will require a city water shutdown that is to be scheduled in late January.
• Construction team installed a new fire hydrant adjacent to Joe's liquor and will require an extension sleeve to raise the fire hydrant base to the correct grade. This was necessary due to proposed elevations of new storm system that will tie into the existing storm system.
• The latter part of this week was used to complete field construction housekeeping, such as cleaning residential driveways, collecting, and storing all unused materials and equipment, and grading out the general area adjacent to The Boonies prior to project shutdown during Christmas and New Year.
City of Wray - 245 W. 4th Street, Wray, Colorado - Main Street Water Line Project
Engineering Support Services, Inc.
Installation of 45degree elbow at lowering on south side of new box culvert at Republican River
Concrete paving operations between 6th/7th utilizing "Metal Forms Corporation Speed Creed"
Construction Schedule Forecast (**)
Week of December 28
• Construction suspended December 24 – January 3, operations to resume January 4, 2021.
Week of January 4
• Installation of new 36-inch concrete storm pipe with Type R inlets and inter-connecting existing concrete storm system from Hwy. 34, both east and west side, and tying into existing outfall culvert adjacent to The Boonies on the south side.
• Complete concrete sidewalk paving and miscellaneous concrete placement from 5th to 7th Street (curb ramps, light pole bases, driveways etc.).
Week of January 11
• Complete installation of new 36-inch concrete storm pipe with Type R inlets and inter- connecting existing concrete storm system from Hwy. 34, both east and west side, and tying into existing outfall culvert adjacent to The Boonies on the south side.
• Install new water service lines from Hwy 34 to the south side of the new concrete box culvert.
• Construction of rebar cage for new box culvert walls at Republican River, including the roadway deck lid and placement of concrete for remaining box culvert.
• Placement and forming of concrete wall at Republican River (south side) box culvert. ** - The above construction forecast can potentially change based on current weekly construction activities and future construction expectations. There could be schedule modifications after the printing of this report and may not necessarily follow the forecast as listed above. Every effort has been made to provide concise and correct information for the monthly report.
City of Wray - 245 W. 4th Street, Wray, Colorado - Main Street Water Line Project
Engineering Support Services, Inc.
Engineering Support Services, Inc.
Monthly Progress Report
General Contractor:
Prepared by:
Engineering Support Services Inc. Golden, Colorado 80401
City of Wray - 245 W. 4th Street, Wray, Colorado - Main Street Water Line Project
Engineering Support Services, Inc.
Project Executive Summary:
Construction continues to stay on schedule, but not without some minor inconveniences at the Republican River and stretch of Main Street between 5th & 6th Street. The Thanksgiving Holiday weekend and upcoming project shutdown between Christmas & the New Year has placed additional requirements on the project team to stay on track and minimize community disruption during the holiday break.
Main Street has been paved through the intersection at 6th Street up to the first driveway entrance of Appearance Edge. Remaining paving operations in this area through to 7th/Kitzmiller Street will be completed once the team is able to schedule city wide water shutdown to tie into the existing city water main which is tentatively scheduled towards the latter part of January 2021.
Zak Dirt has requested that the November Pay Application be combined with December and submitted in the new year. The project team found no issues with this request and will be audited and processed in January 2021.
Constructing wall forms for concrete placement on southern side of Republican River w/completed floor.
Completed demolition of north side of existing box culvert at the Republican River
Construction Progress Summary:
Week of December 1
• The last 13 feet of concrete was poured for the floor box (southern side) at Republican River including 84 feet of southern box culvert wall. Pipeline crews opened two exploratory holes on the south side of river to identify elevation and horizontal location of existing concrete storm pipe that interconnects the new storm south of Hwy. 34.
• The construction team continued to prepare the area between 5th to 7th for placement of concrete pavement, bulb-outs at 5th Street intersection including saw-cutting at the intersection of 6th street for proposed storm drain pans.
• Pipeline crews installed a new sanitary sewer service line for 610 Main Street that was damaged and then determined to be in poor condition due to tree root damage. The team decided it was best to replace the entire line from curb to curb and avoid future excavation of area once new pavement and infrastructure was installed. Approximately 60lf of schedule 40 pipe, provided by the city, was used, and installed by the pipeline crew.
• 4D Electric completed running all new underground conduit between 5th to 7th and installed a few of the light pole sono-tubes and required hand holds to pull electrical wiring.
City of Wray - 245 W. 4th Street, Wray, Colorado - Main Street Water Line Project
Engineering Support Services, Inc.
4D Electric installing conduit for light poles south of 5th
Week of December 7
• Construction team installed a 33” diameter HDPE diversion pipe into the southern side of newly poured concrete box floor and successfully diverted upstream river flows into the pipe using concrete barriers, heavy mill plastic, sandbags and rock. The northern existing diversion pipe that was used to assist with completion of southern side was removed, and crews started demolition of the northern existing box culvert. All unsuitable soil and existing debris (concrete, asphalt, etc.) was hauled off for further processing.
• The street block from 5th to 6th was poured in three separate sections due to superelevation of roadway grades. Approximately 207cy of concrete was placed for the east and west outside lanes and approximately 200cy of concrete was placed for the last center lane, including the remaining 1/2 side of intersection at 5th Street. Due to the street superelevation of this block section, the roadway crew assembled the "Metal Forms Corporation Speed Creed" (https://www.metalforms.com/C/10/ConcreteFinishing) to assist with concrete placement and implementation of “THAWZALL” to prepare roadway sub-base prior to concrete placement. The “Speed Creed” is a simple motor-powered mechanism that allows the placement of concrete to be formed in a consistent manner across a uniform width. The “THAWZALL TCH250” is a standalone unit that uses heated glycol to run through hoses that are coiled in a serpentine fashion within the area of frost and then covered with concrete blankets prior to concrete placement. The system can thaw up to 6000 square feet of ground using up to five 600-foot hoses in five different zones with a temperature range from 70F to 200F (http://www.thawzall.com/products/heat-zone- tch250/).
• The newly installed 8-inch C900 waterline system between the intersection of 6th Street up to the first driveway entrance of Appearance Edge 7th was tested for 2 hours at 150psi and successfully passed. Water samples were submitted and tested by CDPHE (Sterling, CO) for bacteria and all samples came back negative. Crews were then able to install new water line services and abandon the existing water service lines within this area.
• 4D Electric installed the remaining sono-tubes from 5th to 6th and all were filled with concrete. Final installation of light poles, along with the wiring for the southern part of the project, Hwy. 34 to Kitzmiller Street, will be completed in January.
Engineering Support Services, Inc.
Cliff Theatre original painting scheme
Week of December 14
• A cold front came through this week and hampered operations significantly. However, crews continued to move forward and were able to keep the construction site clear of snow and ice. The entire construction project team was focused on the river crossing to remove the remaining existing concrete box culvert on the north side of the Republican River, placed pumps to de-water the area and sandbags in areas deemed necessary to further assist with controlling river flows. The remaining other ½ of steel casing sleeve was installed and welded to the southern ½ that was installed during southern box operations. The welder also installed cathodic protection for the steel pipe casing to prevent corrosion of steel material.
• Construction crews removed all remaining unsuitable material (soil, rock, etc.) and existing sub-base of northern ½ of the Republican River. The floor was graded and subsurface prepared with engineered soil for construction of rebar cage. Crews also removed the concrete forms that were used when placing concrete on the new southern box wall.
• The project team met onsite to discuss last week’s placement of concrete between 5th & 6th Street. The team identified that some of the new concrete panels showed signs of unusual deformation. There are several theories being discussed, such as, improper fly- ash material or aggregate that was not properly prepared and if NCA (non-chlorinated accelerant) could have been used to assist with curing of concrete. However, all concrete samples and testing shows that the strength of concrete was not impacted. The project team is currently continuing to discuss and coordinate with concrete supplier to determine what may have caused these deformations. Regardless of deformations the construction team will remove and replace all concrete panels deemed not to meet construction standards.
• The construction team installed the rebar cage for the last section of north downstream spill slab and north upstream spill slab. Approximately 60cy of concrete was placed and formed to complete the northern floor slab for the new box culvert at the Republican River.
• Pipeline crew installed approximately 40lf of 8-inch C900 pipe, including stainless steel sleeve spacers, through the new steel sleeve casing. This included rubber terminating boots at ends of casing, 45d elbows on south and north side of new box culvert floor to catch 5ft cover of normal waterline trench towards Hwy. 34 and 90d elbow on the north side to catch 5ft of normal waterline trench cover towards 2nd. Street.
City of Wray - 245 W. 4th Street, Wray, Colorado - Main Street Water Line Project
Engineering Support Services, Inc.
• Concrete crews continued with utilization of the "THAWZALL TCH250” unit to remove ground frost between 6th to 7th ahead of concrete pavement placement. Approximately 60cy of concrete was placed and formed for west side from 6th Street to an area just north of Kitzmiller Street.
• The 7-day concrete test results for the southern floor and wall were above the 75% minimum of 3375psi, with test cylinder ranging from 4040 to 6980psi. The 28-day concrete results also show that pavement from 4th to 5th were above the 4500psi requirement and ranged from 4710 to 6340psi.
Concrete placement of northern ½ open channel bottom @ Republican River
Implementation of “THAWZALL” to prepare roadway sub-base prior to concrete placement
Week of December 21
• Construction team completed the placement and forming of concrete pavement on the east side and middle section between 6th to 7th Street with approximately 160cy of concrete. The remaining intersection will be paved once the new waterline is tied into the existing waterline. This will require a city water shutdown that is to be scheduled in late January.
• Construction team installed a new fire hydrant adjacent to Joe's liquor and will require an extension sleeve to raise the fire hydrant base to the correct grade. This was necessary due to proposed elevations of new storm system that will tie into the existing storm system.
• The latter part of this week was used to complete field construction housekeeping, such as cleaning residential driveways, collecting, and storing all unused materials and equipment, and grading out the general area adjacent to The Boonies prior to project shutdown during Christmas and New Year.
City of Wray - 245 W. 4th Street, Wray, Colorado - Main Street Water Line Project
Engineering Support Services, Inc.
Installation of 45degree elbow at lowering on south side of new box culvert at Republican River
Concrete paving operations between 6th/7th utilizing "Metal Forms Corporation Speed Creed"
Construction Schedule Forecast (**)
Week of December 28
• Construction suspended December 24 – January 3, operations to resume January 4, 2021.
Week of January 4
• Installation of new 36-inch concrete storm pipe with Type R inlets and inter-connecting existing concrete storm system from Hwy. 34, both east and west side, and tying into existing outfall culvert adjacent to The Boonies on the south side.
• Complete concrete sidewalk paving and miscellaneous concrete placement from 5th to 7th Street (curb ramps, light pole bases, driveways etc.).
Week of January 11
• Complete installation of new 36-inch concrete storm pipe with Type R inlets and inter- connecting existing concrete storm system from Hwy. 34, both east and west side, and tying into existing outfall culvert adjacent to The Boonies on the south side.
• Install new water service lines from Hwy 34 to the south side of the new concrete box culvert.
• Construction of rebar cage for new box culvert walls at Republican River, including the roadway deck lid and placement of concrete for remaining box culvert.
• Placement and forming of concrete wall at Republican River (south side) box culvert. ** - The above construction forecast can potentially change based on current weekly construction activities and future construction expectations. There could be schedule modifications after the printing of this report and may not necessarily follow the forecast as listed above. Every effort has been made to provide concise and correct information for the monthly report.
City of Wray - 245 W. 4th Street, Wray, Colorado - Main Street Water Line Project
Engineering Support Services, Inc.