Rep. Nancy Mace Announces $8 Million Federal Grant for SC 170 Safety Improvements in Beaufort County

CHARLESTON, S.C. (Nov. 10, 2026) - Today, Congresswoman Nancy Mace announced an $8 million federal Safe Streets and Roads for All (SS4A) grant awarded to Beaufort County for safety improvements along the SC 170 corridor in northern Beaufort County.

"Our families deserve safe roads, and our communities deserve infrastructure built to keep up with their growth. SC 170 is seeing more traffic every year, and we cannot afford to ignore the safety risks along this corridor," said Congresswoman Mace. "This $8 million investment will help fix dangerous intersections, improve visibility and make our roads safer for Lowcountry families. We're delivering results for Beaufort County and putting the safety of our communities first."

Rep. Mace submitted a letter of support urging the U.S. Department of Transportation to approve Beaufort County's grant application and fund the critical safety improvements along the SC 170 corridor.

The project will fund a series of roadway improvements designed to reduce crashes, improve traffic safety and protect drivers, pedestrians and families traveling along one of the Lowcountry's growing corridors.

Planned improvements include:

• Approximately one mile of new or extended raised medians and access management treatments.
• Upgrades to four existing traffic signals.
• Installation of one additional traffic signal, if warranted.
• Four speed feedback signs and flashing beacons.
• High-visibility crosswalks and related signal safety features.

SC 170 is part of Beaufort County's high-injury network, with crash data from 2020 through 2024 identifying several high-crash locations along the corridor. With daily traffic projected to increase from approximately 20,000 vehicles in 2024 to 40,000 by 2050, these improvements will help address growing safety concerns before they get worse.

The project incorporates proven Federal Highway Administration safety measures, including improved corridor access management, enhanced crosswalk visibility, updated yellow change intervals and traffic signal backplates with retroreflective borders.

The $8 million award was made through the U.S. Department of Transportation's Safe Streets and Roads for All grant program, which supports local efforts to prevent roadway fatalities and serious injuries.

SEE REP. MACE'S LETTER OF SUPPORT BELOW:

###