High Growth Area Needs Questionnaire

Project Information

Agency Name Brazoria County
Project Title CR 100 extension
Facility/Street/Highway County Road 100
Limits from CR 113 to SH 35
Description Construct 2-lane roadway and 2-lane grade separation crossing at existing railroad.
Timeframe Medium Term (6-10 Years)
Estimated Cost $16,600,000.00

Investment Category-Focused Criteria

CR 100 is in a transition period with volume increases on the horizon due to significant increase in traffic volume associated with changes in land use along the project limits. Just west of the project is a residential development with approximately 1000 homesites. The extension project will provide direct connectivity to SH 35 which is two miles to the east. This will provide another grade separation over the BNSF railroad. The sub-region currently has two grade separations over the busy railroad line with McHard Road and Bailey Avenue as the only other corridors providing this important east west connectivity over the busy rail line.

Yes

chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.h-gac.com/getmedia/28624d53-96f2-48aa-9c7a-766ebf5b3e0f/brazoria-county-thoroughfare-plan.pdf

Extend existing CR 100 from Veterans Drive to SH 35. This improvement will be the first of two phases. Phase 1 will extend CR 100 (one lane in each direction with a ten foot shoulder) from Veterans Drive to SH 35. The project will include a grade separation over the BNSF railroad. Phase 2 (not part of this project) will be to build a second structure over the BNSF and widen from a two lane facility to a four lane divided facility once traffic volumes on the two lane facility reach a volume to capacity ratio of .75 to .85. The project will include a shared use path for bike and pedestrian movements.

Yes

This project connects CR 100 from Veterans Drive to SH 35 and will address access needs from the Massey Oaks development which will ultimately be built out to approximately 1000 homes just west of the proposed improvement.

Yes

The Massey Oaks development alone will generate over 10,000 vehicles per day and 1000 vehicles per hour in the peak period. Capacity of one lane (given a saturation flow rate of 1900 passenger cars per hour per lane), is approximately 900 vehicles per hour. So in effect, this one development will generate near capacity conditions for CR 100. There are other land use changes planned in the sub-region in the near future which will further compound these impacts. Thoroughfare spacing north of CR 100 is adequate with an alternative corridor of Bailey Avenue one mile north of CR 100. However, due to the proximity of the Hastings Oil Field, there limited east-west connectors south of CR 100. This could concentrate traffic flows over time along the CR 100 corridor, and if CR 100 is not extended, causing Bailey Avenue to reach saturation flow in the very near future.

After completion the LOS along the CR 100 extension (in the Peak Period) will be LOS B with degradation to LOS D as the Massy Oaks development reaches the planned completion in the next 10 to 15 years.

Yes

The CR 100 extension project will provide an alternative to both Bailey Avenue and Magnolia Parkway which are both east-west corridors north of the planned extension.

No

No

Other Investment Category Focused Criteria

No

The corridor is not designated as a critical freight corridor. Once complete, the extension will serve as a local truck route as defined in the major thoroughfare plan.

The CR 100 extension project will provide an alternative to both Bailey Avenue and Magnolia Parkway which are both east-west corridors north of the planned extension.

A shared use path will be included as part of the project for pedestrian and bike safety.

No transit services are currently operating in the area. Future transit services could be provided by the Gulf Coast Transit District or other entities pending the implementation of services as a result of the H-GAC transit study in the sub-region that was completed in 2023.

The CR 100 extension will reduce inoperability with the inclusion of a shoulder for inoperable vehicles to clear the through lanes. The grade separation will reduce inoperability associated with train operations by BNSF if there is a train related delay.

As an extension project, there is no existing facility to improve.

Planning Factors Criteria

As a new extension project, there is no existing data for crashes.

As a new extension project, there is no existing data for crashes with injury.

The changes in travel patterns associated with the extension of CR 100 will help reduce crash rates due to volume reductions on alternative routes such as Bailey Avenue and Magnolia Parkway.

Resiliency

Low

Model.HighGrowthAreaNeedsQuestionnaire.Resiliency2

The project will include the latest in drainage design and detention to address the additional impervious services. Hydrology studies will be performed to address natural drainage patterns and storm water detention needs.

Access/Connectivity

4216

2587

No

No

No

Environmental Justice

4216

2587

491

215

208

452

30.2

The project will include a shared use path for bike and pedestrian movements.

CR 100 extension will decrease traffic congestion and it will provide an alternative route to Bailey Avenue and Magnolia Parkway. New residential developments are proposed within the vicinity of the project which will increase the AADT of those roads and cause congestion.

Impacts on Natural and Cultural Resources

HGAC to provide the data.

HGAC to provide the data.

Innovation

No

No

Additional Documents