Mill Creek / Peaks Branch / State-Thomas Drainage Relief Tunnel

Project overview

Approximately five miles of underground drainage relief serving flood-prone east Dallas neighborhoods and nearly 2,200 properties. Southland’s project profile lists an October 2026 completion date; final owner acceptance has not been verified.

Scope

Approximately five miles of underground drainage relief serving flood-prone east Dallas neighborhoods and nearly 2,200 properties. Southland’s project profile lists an October 2026 completion date; final owner acceptance has not been verified.

Project type

Urban stormwater drainage tunnel

Reported investment / scope

$221.6 million contractor-reported project value

Funding sources

Not available

Delivery method

Not available

Organizations involved

Owner / developer

City of Dallas / Dallas Water Utilities

Developer

Not available

Engineering firm / architect

Not available

General contractor / construction manager

Southland Contracting

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

Check official project / procurement portal ↗

A project listing is not an open solicitation. Check the source for eligibility, current status, closing time and addenda.

Timeline & key dates

Expected procurement

Not available

Construction start

Not available

Estimated completion

October 2026 listed by contractor; owner acceptance unverified

Dated milestones

Not available

Permitting

Not available

Recent project updates

Added September 30, 2026 following review of the linked source. Announced schedules are labeled as targets; map pin is approximate.

Challenges / risks

Contractor profile uses completed language while listing a future October 2026 completion date. Owner acceptance was not verified as of this entry.

Related intelligence

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

Connections use recorded entity IDs and public evidence. Shared keywords do not establish a relationship.

Additional project record

Approximately five miles of underground drainage relief serving flood-prone east Dallas neighborhoods and nearly 2,200 properties. Southland’s project profile lists an October 2026 completion date; final owner acceptance has not been verified.

Owner: City of Dallas / Dallas Water Utilities. Stage: Construction. Reported investment: $221.6 million contractor-reported project value. Schedule: October 2026 listed by contractor; owner acceptance unverified.

Official project source. Source reviewed September 30, 2026.