Spring Cypress Congestion Mitigation and Air Quality Improvement (CMAQ) IV, Phase 1A, Harris County

Client: Harris County

Services: PS&E, Signing and Striping, ADA Services, Traffic Signal Design, Fiber Optic Interconnect

Location: Harris County, Texas

Jones|Carter performed engineering services for Harris County’s Traffic Signal Replacement Program. The project was funded through the federal Congestion Mitigation and Air Quality Improvement Program and was designed according to Harris County and TxDOT standards and specifications. The project limits were more than 14 miles along Spring Cypress Road from Telge Road to Holzwarth Road.

The J|C team worked on 22 intersections along the project corridor, some of which had outdated traffic signal equipment and improper signal timing. These issues, along with the recent increase in traffic volumes, led to longer wait times than necessary for motorists throughout the corridor.

J|C designed traffic signal modifications for 14 of the intersections, which included new in-pavement loop detectors, street name signs, ADA ramps, pavement markings. Also included were flashing yellow arrow signal heads, upgrades to the controller cabinets, the installation of Battery Back-up Systems, and fiber optic connections. The J|C team also designed new traffic signals for five of the intersections.

The project had more than 14 miles of underground fiber optic interconnect that was installed the down the length of the project. Utility coordination was necessary for the relocated and updated traffic signals. Additional coordination was required for the more than 20 pipeline crossings and for one BNSF Railroad crossing.

J|C developed turn lane improvements, which consisted of closing an existing median, opening and extending left-turn lanes at Champion Forest Drive, and adding an eastbound right-turn lane. New north and southbound double left-turn lanes at Stuebner Airline Road were added as well as the widening of existing pavement to provide a northbound left-turn lane at Carrot Street. Associated traffic signal modifications were implemented to account for the various paving improvements.

The Spring Cypress CMAQ project was completed in August of 2018.

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