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SH 146 and IH 10 Improvements TxDOT 1/12/2015 5:07:11 PMProject Narrative
Currently, SH 146 at this location is a seven lane divided highway with a southbound dedicated right turn lane. The IH-10 westbound frontage road currently is three lanes with a left and U-turn lane available. The need for this project is demonstrated by the following: Data available for this project show that it is has the most ADT in the Chambers/Liberty area. Demand exceeds or approaches capacity for both a.m. & p.m. daily commute periods. Hurricane and Emergency evacuation options are a concern. Congestion due to competing uses (i.e. local traffic use and through traffic use). Roadway design deficiencies. Predicted increases in truck traffic due to growth of nearby industrial facilities. By making these improvements, mobility and congestion will be improved as well as safety. This intersection is one of the heaviest used in the area, specifically, for industrial facilities located along both SH 146 and IH-10. These improvements will provide the mentioned benefits while minimizing adverse environmental effects. The SH 146 right turn lane will be an extension and widening of an existing concrete right turn lane from the intersection north approximately 700 feet. The IH-10 westbound feeder will be an extension of an existing concrete lane approximately 600 feet to the east. There is also median improvements to the northbound left turn lane as well as the median for the westbound frontage road. No sidewalks are proposed as part of this project. This project does not require additional right-of-way. Other conceptual alternatives were considered including a no build alternative. The improvements outlined in this application represent the preferred alternative. This project will not be staged as the improvements are needed cunccurent with each other as to reduce the issues presented.Project Narrative
No Categorical Exclusion (CE) (c)(26) Modernization of a highway which meets constraints in paragraph (e) No 01/01/2017 No Yes Utilities have been identified. At this time, there are no significant problems or anticipated impacts to the project schedule with respect to utility adjustment other than TxDot facilities. Those are described as follows: There will be a traffic signal, pedestrian pole, and luminair that will need to be relocated as part of this project. An existing storm sewer will need to be extended as part of this project. No Please see attached. This project may be constructed at this time due to the CE availible.Map/Location
Evalutation Questions - Major Investments
Benefit/Cost Methodology
Please attach the completed BCA Excel worksheet and narrative explanation of analyses used