US 78 Widening, Phase 3A

Project overview

Dorchester County is the recipient of a $24,666,750 FY 2025 BUILD Round 2 grant for US 78 Widening, Phase 3A in Dorchester County, SC.

Scope

This project will widen US 78 from west of Orangeburg Road to North Maple Street, expanding the roadway from two lanes to five lanes, with 12-foot-wide travel lanes and a 15-foot-wide center turn lane. The project includes the installation of approximately 3.39 miles of sidewalk, approximately 4.9 miles of bicycle lanes, and approximately 0.41 miles of multi-use path. Additional improvements involve upgrading intersections with dedicated turn lanes and concrete medians, replacing the Rumphs Hill Creek culvert, and adding curb and gutter along the corridor.

Project type

Road, bridge and corridor improvements — capital award

Reported investment / scope

Total project cost not established by this entry

Funding sources

FY 2025 BUILD Round 2 capital award: $24,666,750 federal grant

Delivery method

Not available

Organizations involved

Owner / developer

Dorchester County

Developer

Not available

Engineering firm / architect

Not available

General contractor / construction manager

Not available

EPC contractor

Not available

Technology / equipment providers

Not available

Financial sponsor

Not available

Other recorded participants

Not available

Business opportunities

Not verified

Current procurement record

Not available

Upcoming procurement

Not available

Contract / package value

Not available

Supplier / subcontractor opportunities

Not available

Workforce requirements

Not available

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Timeline & key dates

Expected procurement

Not available

Construction start

June 2026 — estimate in FY 2025 award fact sheet; not reconfirmed

Estimated completion

Not confirmed

Dated milestones

Not available

Permitting

Not available

Recent project updates

FY 2025 BUILD Round 2 capital award. The source documents a 2025 grant award, not a current construction or tender update. Award amount is the federal grant, not total project cost. Current delivery status and procurement availability have not been independently confirmed.

Challenges / risks

Award record does not confirm current project status, full funding or availability of contracts.

Related intelligence

No verified record associations have been entered for this project yet.

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Additional project record

Dorchester County is the recipient of a $24,666,750 FY 2025 BUILD Round 2 grant for US 78 Widening, Phase 3A in Dorchester County, SC.

This project will widen US 78 from west of Orangeburg Road to North Maple Street, expanding the roadway from two lanes to five lanes, with 12-foot-wide travel lanes and a 15-foot-wide center turn lane. The project includes the installation of approximately 3.39 miles of sidewalk, approximately 4.9 miles of bicycle lanes, and approximately 0.41 miles of multi-use path. Additional improvements involve upgrading intersections with dedicated turn lanes and concrete medians, replacing the Rumphs Hill Creek culvert, and adding curb and gutter along the corridor.

Award record: FY 2025 BUILD Round 2 capital award. Federal grant: $24,666,750. Recipient: Dorchester County. Location: Dorchester County, SC: South Carolina.

Construction start: June 2026 — estimate in FY 2025 award fact sheet; not reconfirmed. Completion, contractor, designer and current bid deadlines are not confirmed in this entry.

The source documents a 2025 grant award, not a current construction or tender update. Award amount is the federal grant, not total project cost. Current delivery status and procurement availability have not been independently confirmed.

Official USDOT award fact sheet, page 25. Award record reviewed October 24, 2026.