Public Works and Environmental Services

Fairfax County, Virginia

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TTY 711

12000 Government Center Parkway
Suite 448 Fairfax, VA 22035

Christopher S. Herrington,

Little Pimmit Run Sanitary Sewer Realignment (WW-000028-016)

Photo: An exposed sanitary pipeline at Little Pimmit Run
An exposed sanitary sewer pipeline in the Little Pimmit Run stream bed near the intersection of Fielding Lewis Way and Maddux Lane. The sanitary sewer was damaged by debris in the stream during a storm in September 2021. This sanitary sewer crossing is planned to be eliminated by the Little Pimmit Run Sanitary Sewer Realignment Project, which will prevent a recurrence of this damage. An interim plan to address the damage is under development.


Project Update: October 19, 2021

The Project will begin the Detailed Design Phase in Fall 2021.

The Final Preliminary Engineering report was submitted in October 2021. The report identified and evaluated preliminary alternatives and recommended the best alternative.

Project Background

Photo: Little Pimmit Run Sewer ReplacementThe project was identified in early 2019 with an initiative to address stream crossings as an inherent weak point of the sanitary sewer system. Stream crossings place stress on the pipe and can increase the potential for pipeline erosion and breakage—resulting in costly emergency projects. The project is being done in collaboration with Fairfax County’s Stormwater Planning Division’s Little Pimmit Run at Chesterbrook Road Stream Restoration (SD-000031-246).

Eight sewer pipes in the project area are currently exposed in the stream bed, and a Technical Memorandum prepared in January 2020 evaluated several alternatives to address these stream crossings. After evaluating the options, the County decided that a sewer realignment was the most feasible alternative.

Project Description

The project will assess areas where sanitary sewer crosses Little Pimmit Run to determine whether the existing segments should be relocated or protected in place. The project area is within the Little Pimmit Run corridor between Franklin Park Road and Kirby Road and Claiborne Drive. Approximately 9,000 linear feet of gravity sewer is in the stream corridor.

The primary goals of the project are:

  • Improve public infrastructure by removing or protecting sanitary sewers located in stream beds.
  • Assess sanitary sewer segments which cross Little Pimmit Run for relocation.
  • Protect public infrastructure.
  • Prevent costly emergency repairs.
  • Reduce risks to public health and the environment.

Project Location

The project is within the Little Pimmit Run corridor from the intersection of Franklin Park Road and Solitaire Lane and continues northeast to Kirby Road and Claiborne Drive.

Project Phase

The Preliminary Engineering Report (PER) was received in October 2021, which marked the end of the Predesign Phase. The Project is now moving into the Design Phase.

Project Benefits

Upon completion, this project will:

  • Reduce or eliminate sanitary sewer stream crossings
  • Reduce potential for pipe breakage and prevent costly emergency projects
  • Improve water quality by ensuring raw sewage does not release into the stream


The final Preliminary Engineering Report was received in October 2021.

See the Executive Summary of the Preliminary Engineering Report.

Preliminary Engineering Report Excerpts
Preliminary Engineering Report Associated Addresses
1. Grading – 00+00 to 8+00 6114 Franklin Park Road, 6114A Franklin Park Road, 6116 Franklin Park Road, 1810 Briar Ridge Court, 1817 Briar Ridge Court, 6175 Callista Lane, 1812 Solitaire Lane, 1814 Solitaire Lane, 1816 Solitaire Lane,1818 Solitaire Lane, 1820 Solitaire Lane, 1822 Solitaire Lane, 6110 Franklin Park Road
2. Grading – 8+00 to 20+00 6175 Callista Lane, 6155 Callista Lane, 1715 Chesterbrook Court, 1713 Chesterbrook Court, 1701 Chesterbrook Vale Court, 1703 Chesterbrook Vale Court, 1705 Chesterbrook Vale Court, 1707 Chesterbrook Vale Court, 1709 Chesterbrook Vale Court, 1711 Chesterbrook Vale Court, 1713 Chesterbrook Vale Court, 1715 Chesterbrook Vale Court, 1717 Chesterbrook Vale Court, 6107 Woodland Terrace, 6108 Woodland Terrace, 1800 Solitaire Lane, 1802 Solitaire Lane, 1804 Solitaire Lane, 1806 Solitaire Lane, 1808 Solitaire Lane, 1810 Solitaire Lane, 1812 Solitaire Lane
3. Grading – 20+00 to 28+00 1641 Maddux Lane, 1639 Maddux Lane, 1637 Maddux Lane, 1635 Maddux Lane, 1633 Maddux Lane, 1631 Maddux Lane, 1629 Maddux Lane, 1627 Maddux Lane, 6034 Chesterbrook Road, 6032 Chesterbrook Road, 6033 Chesterbrook Road, 1658 Quail Hollow Court, 1656 Quail Hollow Court, 1654 Quail Hollow Court, 1654 Quail Hollow Court, 1650 Quail Hollow Court, 1701 James Payne Circle
4. Grading – 28+00 to 40+00 1631 Maddux Lane, 1629 Maddux Lane, 1627 Maddux Lane, 1621 Maddux Lane, 1619 Maddux Lane, 1617 Maddux Lane, 1615 Maddux Lane, 1613 Maddux Lane, 1611 Maddux Lane, 1609 Maddux Lane, 1651 Quail Hollow Court
5. Grading – 40+00 to 52+00 1609 Maddux Lane, 1607 Maddux Lane, 1605 Maddux Lane, 1601 Maddux Lane, 1599 Maddux Lane, 1595 Maddux Lane, 1591 Maddux Lane, 1587 Maddux Lane, 1585 Maddux Lane, 1583 Maddux Lane, 1508 Hardwood Lane, 6032 Oakdale Road
6. Grading – 52+00 to 61+00 1483 Kirby Road, 1441 Kirby Road, 1423 Kirby Road, 1508 Hardwood Lane
7. Grading – 61+00 to 64+00 1423 Kirby Road, 1418 Laburnum Street, 1416 Laburnum Street, 1414 Laburnum Street, 1412 Laburnum Street, 1411 Laburnum Street

What to Expect

This project is in the preliminary engineering design phase, so you will not see construction in the area any time soon. The project is beginning the Detailed Design phase, so youmay see staff from the design engineer or Department of Public Works and Environmental Services staff in the field.

A plan for addressing the damaged pipe pictured at the top of the page is underway. There may be construction activities near the sanitary sewer crossing located near the intersection of Fielding Lewis Way and Maddux Lane.

Project Cost and Funding Source

The design and realignment of this sanitary sewer is expected to cost $7 million. Wastewater projects are funded through the county Capital Improvement Program.

Presentations to the Community

A Community meeting was held on October 4, 2021.


For more information please email Project Manager Suzy Harding, Wastewater Design and Construction Division, Department of Public Works and Environmental Services, at or call 703-810-9727, TTY 711.

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