Lining equipment and a work tent set up beside a park fountain at dusk

Government & Public Sector

Infrastructure Work at Washington DC National Parks

Specialist pipe evaluation and rehabilitation at four National Park Service sites in 2026, within the Service’s fountain restoration program.

The program

A Major National Park Beautification Program

In 2026 the National Park Service is restoring fountains and water features across Washington, DC, under Executive Order 14252, Making the District of Columbia Safe and Beautiful, and Executive Order 14189 for the 250th anniversary of the United States.

The Service describes the work as “modernizing mechanical systems, conserving historic stonework and sculpture, restoring landscapes and improving surrounding park amenities.” Within that wider program, Dynamic Drain performed specialist pipe evaluation and rehabilitation at four of the sites.

Storm GIS map of the Korean War Veterans Memorial, with drain structures and lines marked on an aerial photo

The sites

Four Sites, Four Scopes

  1. 01Complete

    Korean War Veterans Memorial

    Storm drainage, not fountain piping: 551 feet of 12 to 21 inch CIPP rehabilitation, carried out with the care a war memorial deserves. Evaluation study in January 2026, then two phases of rehabilitation in January and February.

  2. 02Complete

    Freedom Plaza

    Fountain and water sculpture pipe system: evaluation study in February 2026, then CIPP rehabilitation in three phases, March to May 2026.

  3. 03Complete

    Columbus Plaza at Union Station

    Fountain and water sculpture pipe system: evaluation study in February 2026, then CIPP rehabilitation in two phases, February and March 2026.

  4. 04In progress

    Meridian Hill Park

    Fountain and water sculpture pipe system: evaluation study in February 2026 and two phases of rehabilitation in March and April. A third phase was evaluated in August 2026, with rehabilitation scheduled for September.

Project poster for the Korean War Veterans Memorial storm system, with its GIS map

Project poster

Korean War Veterans Memorial

The project poster: a storm GIS map of the memorial with utility vaults, manholes, cleanouts and flow directions, and the 551 feet of 12 to 21 inch CIPP rehabilitation that preserved its drainage.

The sequence

How This Kind of Work Happens

Every site followed the same sequence. Across the business roughly one in four evaluation studies leads to rehabilitation; here all four did, because the pipe condition warranted it.

  1. 01

    Evaluation study first

    Each site began with an evaluation of the pipe system, so the scope was set by what the study found.

  2. 02

    A first phase

    Rehabilitation started with a first phase, which had to prove out before the next.

  3. 03

    Phased rehabilitation

    Further phases followed as each one proved out; one site is on its third phase eight months in.

Theodore Roosevelt Island

A Second Federal Precedent

On Theodore Roosevelt Island, the 91-acre preserve in the Potomac, Dynamic Drain rehabilitated 2,000 feet of water fountain lines: 3 and 4 inch pipes feeding a 3,000-foot moat, two fountains and statues, fed by a 6 inch suction line from the river. The work was published in Cleaner magazine in March 2013, giving this page a fifteen-year arc.

A Dynamic Drain crew feeding a lining hose into an access point on a lawn, with their truck and equipment behind

Public coverage

In the News

Public coverage of the National Park Service program this work was part of.

What happens next

Start your project

Tell us more about your infrastructure challenges.

  1. 01Evaluation studyThe system is mapped, inspected by camera, and every section is condition-graded.
  2. 02Prioritized findingsGrades are weighted by system risk and turned into a plan, most critical sections first.
  3. 03RehabilitationTrenchless CIPP lining of the sections that matter most, without full pipe replacement. Access requirements are confirmed during the evaluation.