19th Avenue Improvements
South Sangre Road to South Western Road
Roadway Widening and Signalization

The project was to widen a two lane street with ditches to three lanes with curbs and a closed drainage system. All work was done by C2A Engineering with the exception of the survey and traffic signal design. These were done by sub-consultants. Below is a brief explanation of the project.

The existing facility was a two lane rural asphalt road with ditches on each side. The ditches are of various depths and widths. All the intersecting streets from sub-divisions were curbed streets. A park was located on the north side at the east end of the project. A retail center is being built on the south side at the east end of the project. Additional residential development with some future commercial development is being built on the north side at the west end. Traffic counts and project traffic required the additional lane. Also, the City wished to remove the ditches and improve the corridor for future development.

A three lane facility with curbs and a closed drainage system was designed for this section of 19th Avenue. Improvements to the horizontal alignment and vertical alignment were made. Driveway access was limited to existing locations. The closed drainage system improved the accessibility to adjacent property for future development. Also, City property at the west end on the south side had access improved. Park access was also improved.

The Western Road intersection was to be upgraded with an improved traffic signal and turn lanes for each leg of the intersection. The present span wire signal system was inadequate for the present traffic and future anticipated traffic. The signal system at Sangre Road was not improved. It has the capacity for turn lanes and new loops were placed where the pavement was replaced.

The schedule was to prepare the preliminary plans within 5 months. The preliminary plans were completed within 5 months. The final plans were to be completed within 4 months but took an additional two months due to changes being made by the City at the end of the project during ROW negotiations. ROW acquisition was a part of the project and additional facilities were provided for adjoining property owners to improve there development was added to obtain ROW needed for the project. C2A Engineering completed there work on time and within budget.

Construction began in November 2006. All utility relocations were completed prior to construction commencing. However, Southwestern Bell Telephone relocated according to plans submitted, but the contractor found errors in what was actually relocated. This caused some delays. Also, City water lines were found to be inadequate in some areas (age related) and began to leak due to contractor work. This has also created some delays. The project was completed in September 2007, which was the original date.
 


 

North Garnett Road
East 86th Street North to East 96th Street North
Roadway Widening and Signalization


The project was to widen a two lane street with ditches to five lanes with curbs and a closed drainage system. All work was done by C2A Engineering with the exception of the hydrology and traffic signal design. These were done by sub-consultants. Below is a brief explanation of the project.

The existing facility is a two lane rural asphalt road with ditches on each side. The ditches are of various depths and widths. A service road is located along the west side of North Garnett Road for approximately one quarter of a mile. A new retail center is being built at the north end of the project. Traffic counts and project traffic require an additional two lanes. Also, the City wished to remove the service road, replace and upgrade the water system in the area, and improve the corridor for commercial development.

A five lane facility with curbs and a closed drainage system was designed for this section of North Garnett Road. Improvements to the horizontal alignment and vertical alignment were made. Driveway access was limited to a spacing of 150 feet as a minimum. The closed drainage system improved the accessibility to adjacent property for future development. Also, excess City property was traded for private property to improve the horizontal alignment at the south end.

The water system in the City of Owasso has reached its capacity with the present distribution system. This project included the placement of a 24-inch water main the full length of the project. This was a continuation of two other water main projects that will increase the capacity of the system. A complete redesign of the distribution system was also a part of the project by adding a parallel 8-inch service line for the full length of the project.

The schedule was to prepare the preliminary plans within 3 months. The preliminary plans were completed within 3 months. The final plans were to be completed within 2 months but took an additional two months due to changes being made at the south end of the project. It was determined that the intersection with 86th Street North needed to be addressed to provide left turn lanes. Also, an additional traffic signal was added at the City fire station. The City wavered on making two separate projects from the one and doing the waterline first. This also created a delay. C2A Engineering completed there work on time and within budget.

Construction began in February 2005. All utility relocations were ongoing during the first three months of construction. Southwestern Bell Telephone completed there relocations at the south half of the project in August 2005. The contractor was informed to the utility conflicts prior to his bid and work order. Final completion of all work was in October 2005.

 


 

86th Street North and North Mingo Road
Intersection Improvements and Signalization



C2A Engineering was contracted to widen 86th Street North to five lanes and North Mingo Road to five lanes. A new traffic signal would be added to this intersection. A brief description of the project is listed below.

The existing facility was a two lane ditched 86th Street North and North Mingo Road. A third lane was added to 86th Street North in the past to allow a left turn lane from westbound to northbound movement. The traffic has increased substantially that additional lanes were needed to reduce congestion. Also, the 86th Street corridor is in the planning stages to be improved and become a major access route from US-75 to Owasso.

The intersection was widened from the railroad tracks eastward to approximately 400 feet east of North Mingo Road. A fourth leg was added to the intersection to provide a future access point to the property to the south. The five lane facility is curbed and has a closed drainage system. The roadway surface is Portland cement concrete. Sidewalks were constructed on all sides of the intersection. A new fully directional traffic signal was constructed. A new railroad safety gates and signals system was installed.

The schedule was to prepare the Preliminary Plans within 45 days of a Notice to Proceed and after a review to complete the Final Plans within 60 days. Contract documents will be prepared once the Final review is completed, within 20 days. The City took approximately 30 days to review each of the submittals. The project was started by another firm as a three lane intersection improvement, but was changed to five lanes due to the increase in traffic. All the right-of-way was being purchased by the City during the design process, as they had begun the process previously. The original project had the right-of-way being purchased for a future widening project.

Utility relocations were minimal. ONG had to relocate their facility on the south side of the roadway. The Rural Water District had to cap their system and relocate one service on the west end of the project. PSO had to relocated their lines on the north and east side of the roadways. ATT abandoned most of their facility in the intersection as it was not needed.

The engineer completed his work within the contract time schedule. The project was bid and construction was completed in January 2008.

 


 

Bridge Rehabilitation and Replacement
Various City Bridges – City of Tulsa



The project consisted of repairing five City bridges and replacing two City bridges. The bridges to be repaired were located at the following locations: Tisdale Parkway over Pine Street (2 bridges), 11th Street over the Arkansas River, Charles Page Blvd. over the Railroad tracks, and Pine Street over Mingo Creek. The work consisted of replacement of all bridge joints. The Pine Street bridge needed some substructure work to the piers. Other work was associated with the bridge joints.

The two bridges to be replaced were: 56th Street North over a stream east of North Cincinnati Ave. (a two cell box bridge) and Entrance to Newblock park over Parkview Ditch (a single span double tee).

The schedule was to prepare the Preliminary Plans within 75 days of a Notice to Proceed and after a review to complete the Final Plans within 75 days. Contract documents will be prepared once the Final review is completed, within 30 days. The City will take approximately 15 to 30 days to review each of the submittals. The project was completely funded by the City of Tulsa. The preliminary plan schedule took 90 days due to lack of existing bridge documents for the bridges to be repaired.

The project as designed included a new double barrel box culvert at 56th Street North. This portion of the project also required a LOMR be prepared due to the new cross section of the channel to the north. A CLOMR was not needed as the new structure did not change the back water elevation upstream. The double tee bridge into the parking lot for Newblock Park did not need a LOMR. No change to the channel was being made. This was a posted bridge and the reason for replacing.

No utility relocations were needed, so we thought. The Newblock Park bridge had a City of Tulsa fiber optic line across it. This was discovered as the construction began. This caused a delay in completion of the project. During the design phase, this line was noted on the plans, but the City did not have the consultant prepare a relocation plan for the fiber optic line.

The repair projects for the five bridges included the replacement of all the joints, both expansion and fixed, on the bridges. The new joint replaced all the existing joints that were no longer functioning as designed. Each bridge had a different type of existing joint. All were changed to a silicone sealed joint, either armored or not armored.

The plans were completed in the allotted time by the engineer. The City of Tulsa handled all the bidding of the project and awarding of the contract. No questions have been asked by the contractor requesting additional information to complete the relocation of the two structures. The bids came in below the budgeted amount for the project.

 


 

Jay Street over Cat Creek
Bridge Replacement – City of Claremore



The project consisted of replacing a single span stringer bridge with a multi cell box culvert. The existing structure was a single span steel stringer bridge with a Portland cement concrete deck covered with asphalt. The structure was narrow, less than 20 feet in width. The substructure was concrete abutments with splayed wing walls. The wing walls were falling into the stream. The bridge railing was a steel railing that was not solidly joined to the deck. It was posted for load.

A multi cell box culvert (4 cells) was chosen to keep the roadway profile to a minimum. All the storm water for the 100-year event storm will pass though the structure. No water over the road in the future. A sidewalk was placed on the west side and bridge rail is concrete. The roadway is 26 feet in width, allowing two 13 foot lanes.

The schedule was to prepare the Preliminary Plans within 75 days of a Notice to Proceed and after a review to complete the Final Plans within 75 days. Contract documents will be prepared once the Final review is completed, within 30 days. The City will take approximately 15 to 30 days to review each of the submittals. The project was funded with City of Claremore and Federal funds. The reviews took several days longer as ODOT had to review. Also, an environmental assessment was conducted by ODOT that took almost one year to complete. This delayed bidding the project, as the City could not purchase any right-of-way until the environmental clearance was obtained.

Two parcels were required to acquire for the project. The existing right-of-way was only 33 feet, and 80 feet was needed to construct the new bridge. Two property owners, one on each side, were the only properties affected. The east side was a triangular piece of property needed towards the railroad tracks that parallel the road. The west side had one property owner that had a gas easement out to the 40 foot line from the centerline. The City purchased both properties needed.

ONG had to relocate a small gas line. They did not have to wait for additional right-of-way as their line was in a self owned easement. No other utility had to relocate.

The plans were completed in the allotted time by the engineer. ODOT took one year to get the environmental clearance and delayed the project one year. A 404 Permit was obtained by the engineer within 75 days of submitting a request for a nationwide permit. Construction will begin once all the right-of-way is acquired and the project bids.

 


 

121st Street and Elm Street
Intersection Improvements and Signalization



The existing facility is a two lane with bar ditch on all four legs of the intersection. Left turn lanes are needed to reduce congestion and a high accident occurrence. Also, a right turn lane for southbound Elm Street is needed. The pavement is in good condition.

The two streets will be widened by adding a lane to the north side of 121st Street, a half lane to each side of Elm Street to the south and a lane to the west side and half a lane to each side of Elm Street to the north. A re-profiling will be done to improve drainage. Also, the project includes curbs and a closed drainage system to reduce the amount of right-of-way needed. Modifications to the existing system will also be done. Only right-of-way will be acquired in the southeast corner of the intersection. All other corners had adequate right-of-way from previous projects.

A new traffic signal will be installed to control turning movements and reduce congestion. The intersection will have a concrete surface due to the number of turning movements and stop and go movements.

The schedule was to prepare the Preliminary Plans within 75 days of a Notice to Proceed and after a review to complete the Final Plans within 45 days. Contract documents will be prepared once the Final review is completed, within 20 days. The City will take approximately 15 to 30 days to review each of the submittals. This is a Federal-Aid project and therefore the Oklahoma Department of Transportation also reviews the project. This has added review time to the project and overall time.

Utility relocations took additional time. No actual time was built into the contract to complete the utility relocation as it will be done once the engineering is completed. There is a City of Jenks water line on the east side that will be relocated. The water line will be part of the street project.

The project was bid and the contractor began his work. After a few minor utility conflicts the contractor asked to be relieved from the project. A re-bid was authorized and the engineer had to make some minor modifications to the plans, based on what the contractor had completed and what conflicts became evident. The work was completed in 60 days and the project was re-bid.
 


Main Street and Nogales Avenue
Intersection Improvements and Signalization



The existing facility is a two lane with bar ditch on all three legs of the intersection. Left turn lanes are needed to reduce congestion and a high accident occurrence. Also, a right turn lane for westbound Main Street is needed. The pavement is in good condition. A school located about one half mile north of the project will become a major traffic generator through this intersection.

The two streets will be widened by adding a half lane to each side of Nogales Avenue to the north and a lane to the south side of Main Street. A right turn lane will be added to the north side of Main Street, east of Nogales Avenue to provide a continuous right turn to the north. The project included curbs and a closed drainage system to reduce the amount of right-of-way needed. Modifications to an existing box culvert will be done. Only right-of-way necessary will be acquired on the south side of the intersection. All other corners had adequate right-of-way from previous projects.

A stub out for a fourth leg to the intersection is part of the project. This will be built for a future street to the south to serve as a commercial collector.

A new traffic signal will be installed to control turning movements and reduce congestion. The intersection will have an Asphaltic concrete surface.

The schedule was to prepare the Preliminary Plans within 75 days of a Notice to Proceed and after a review to complete the Final Plans within 45 days. Contract documents will be prepared once the Final review is completed, within 20 days. The City will take approximately 15 to 30 days to review each of the submittals. This is a Federal-Aid project and therefore the Oklahoma Department of Transportation also reviews the project. This has added review time to the project and overall time.

Utility relocations took additional time. No actual time was built into the contract to complete the utility relocation as it will be done once the engineering is completed.

The project was bid and the contractor began work. A few utility conflicts were encountered based on poor marking of utilities during the original survey. Also, a City water line was marked in the wrong location and became a point of controversy with the contractor. The contractor asked to be relieved from the contract and the project was re-bid.

The engineer revised the plans to show what had been accomplished by the first contractor and the project was re-bid. This work took about 60 days and included several coordination meetings with the utility companies, ODOT and the City of Jenks.
 


 

C2A Engineering, Inc.
5516 South Lewis Avenue, Suite 201
Tulsa, OK 74105
Phone: (918) 712-5080 • Fax: (918) 712-5990