I-40/Douglas Boulevard Bridge Replacement and Interchange Reconstruction in Oklahoma County, OK

JULY 2020 UPDATE

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January 2017 Public Meeting

PUBLIC MEETING SUMMARY AND RESPONSES TO COMMENTS

Should you have any questions regarding this project, please email environment@odot.org, or call 405-325-3269 and leave a detailed message.

The purpose of the Public Meeting was to present and get public input on the Douglas Boulevard bridge replacement and three (3) interchange improvement alternatives under consideration for the I-40/Douglas Boulevard interchange, located 6.5 miles east of I-35 in Oklahoma City, Oklahoma.

Please click image below for location map

The Oklahoma Department of Transportation (ODOT), in cooperation with the Federal Highway Administration (FHWA),is soliciting comments on possible improvements to the I 40 and Douglas Boulevard bridge and interchange in Oklahoma County, Oklahoma.

The Douglas Boulevard bridge over I-40 is six lanes wide including four through lanes, two loop ramp weaving lanes, curb and gutter, and 3-ft wide sidewalks on each side of the bridge. The existing Douglas Boulevard bridge is an 80-ft wide concrete continuous slab bridge, with a sufficiency rating of 77.0. The vertical clearance for I-40 is posted as 16-ft-9-in (eastbound) and 16-ft-4-in (westbound). The current annual average daily traffic (AADT) on Douglas Boulevard is 26,100 vehicles per day (vpd), and is projected to increase to 47,980 vpd by the year 2045).

I-40 underneath Douglas Blvd is a four-lane divided urban interstate with a 40-ft wide grass median, 12-ft wide driving lanes, 3-ft wide inside shoulders, and 10-ft wide outside shoulders. The current AADT on I-40 is 54,574 vehicles per day (vpd), and is projected to increase to 84,580 vpd by the year 2045. The existing I 40 and Douglas Boulevard interchange is a full cloverleaf interchange with collector-distributor roads along I-40. The number of collisions at this location is higher than the state average at similar locations.

The existing Engle Road bridge over I-40 formerly provided access to a residential neighborhood south of I-40. However, the neighborhood no longer exists and the property is now owned by Tinker Air Force Base. Therefore, Engle Road bridge is closed to traffic and not in use.

The purpose of this project is to correct the functionally obsolete Douglas Boulevard bridge and improve safety while accommodating future traffic volumes, which indicate I-40 should be widened from four lanes to six lanes.

Three (3) interchange alternatives have been identified for consideration:

• Alternative 1: Single Point Urban Interchange (SPUI). A Single Point Urban Interchange is a basic diamond interchange with a single signalized central intersection in the center of the bridge. The Douglas Boulevard traffic along with the I-40 ramp traffic will converge to a single point utilizing the single set of traffic signals. The SPUI interchange accommodates large traffic volumes efficiently with minimal right-of-way impacts. I-40 will be improved to a six-lane facility. Through the interchange, Douglas Boulevard will consist of six through lanes, dual left-turn lanes, and right-turn lanes where needed. Entrance and exit ramp lanes will also be constructed along I-40. Collector-distributor roads will be removed and will not be re-constructed.

• Alternative 2: Tight Urban Diamond Interchange (TUDI) with Ramp Flyover. A Tight Urban Diamond Interchange is an interchange that compresses a standard diamond interchange. This design includes all four interchange ramps, as well as the option of adding a future flyover ramp for northbound Douglas Boulevard traffic destined for westbound I-40. I-40 will be improved to a six-lane facility. Through the interchange, Douglas Boulevard will consist of six through lanes, dual left-turn lanes, and right-turn lanes where needed. Upon construction of the northbound to westbound ramp flyover, the northbound to westbound left-turn lanes on Douglas will be removed. Entrance and exit ramp lanes will also be constructed along I-40. Collector-distributor roads will be removed and will not be re-constructed.

• Alternative 3: Cloverleaf Interchange – Cloverleaf Interchange. The existing cloverleaf will be completely reconstructed to accommodate widening I-40 to a six-lane facility. All ramps and both collector-distributor roads will be reconstructed. Through the interchange, Douglas Boulevard will consist of four through lanes, two lanes for loop ramp weaving, two additional lanes located in the median which can be used in the future for left turning traffic, and entrance and exit lanes where needed. Entrance and exit ramp lanes will also be constructed along I-40.

Regardless of the interchange alternative selected, the Engle Road bridge over I-40, which is no longer in service, will be removed as a part of this project.

ALL COMMENTS NEED TO BE RECEIVED BY THE END OF BUSINESS ON

FEBRUARY 14, 2017

Submit Online: COMMENT FORM

NOTE:To submit this Comment Form by email please download the form. Use your Adobe Reader to fill in your information and leave your comment, then select the Submit by Email button. You can also fill in the downloaded form and send it as an email attachment if you are on a public computer, or email your comments to environment@odot.org. If you do not currently have an Adobe Reader, you can download a free copy at https://get.adobe.com/reader/.

Email: environment@odot.org

Address:
ODOT Environmental Programs Division
OKLAHOMA DEPARTMENT OF TRANSPORTATION
200 N.E. 21stStreet
Oklahoma City, OK 73105-3204

• Handout
• Presentation
• Display Board: Alternative 1
• Display Board: Alternative 2
• Display Board: Alternative 3