Our tenured staff provides a broad range of engineering services for municipal utility districts. Our experience includes feasibility studies, alternative analyses, district creation, permitting, detailed design, and construction phase services for these districts.

Our Utility District Engineering services encompass the following disciplines:

  • Water Supply, Treatment, and Distribution
  • Wastewater Collection and Treatment
  • Drainage and Flood Control
  • Streets and Roads (where Road Powers exist)
  • Surveying , Right-of-Way, Construction Staking, and Easement Services
  • Construction Phase Services: Contract Administration and Observation

New Districts - Costello assists the District’s attorney with the creation of the District and is responsible for preparing the District Creation Report, outlining all of the necessary improvements and their respective construction costs to determine the amount of bonds to be voted. These costs are then used to analyze the District tax rate. We work closely with the developer and all the District consultants to ensure a timely creation of the District and serve as the developer’s engineer on development within the District.

Mature Districts - Older, more mature districts may be either completely built out, with no developer activity whatsoever, or they may still have significant commercial/multi-family tract development ongoing. In this latter case, Costello often acts as both the District engineer and the developer’s engineer because the developer finds it both convenient and efficient to work with the District engineer. We are experienced in balancing both roles and understand the need to act on behalf of both parties in a fair and equitable manner.

Surface Water Conversion - Another critical issue for Districts, no matter what their age, is surface water conversion. We have completed numerous plant conversions for our existing districts.

  • FM 518 Drainage

    FM 518 Drainage

    Costello provided preliminary engineering, final design, and limited construction phase services for this high-profile, important drainage and paving project. This project provides improved drainage and mobility in the downtown area, thereby promoting development and redevelopment within the FM 518 corridor. The project included the following components: FM 518 parallel storm sewer system ranging in size from 30” to 60”; dual 54” outfalls in Stonesthrow outfalling into Cowards Creek; and dual 54” outfalls from FM 518 along E. Castlewood outfalling into Clear Creek. Services included design (drainage, pavement replacement, and utility relocations), traffic control, storm water pollution prevention plans, restoration, geotechnical, and environmental services.

  • Holcombe Blvd. Reconstruction

    Holcombe Blvd. Reconstruction

    Costello provided engineering services for the reconstruction of a portion of Holcombe Blvd. from Fannin to S. Braeswood, in the heart of the Texas Medical Center. Engineering services include design and construction phase services for the paving and utility improvements, traffic control, maintenance of access. tree protection, SW3P. traffic signal improvements, sidewalks, and construction phasing.

    The scope of work includes design of concrete curb-and-gutter street reconstruction, a 30-inch water transmission line, storm sewer improvements, sanitary sewer rehabilitation (sizes to 54-inches). traffic signal upgrades, street lights, and sidewalk improvements. This project involved complex construction constraints along a critical Houston corridor which includes access, traffic control for six hospitals, mature trees, METRO Light Rail coordination, and maintenance of public and private utility service. Costello has provided significant coordination with 10 utilities, six hospital boards, and METRO. The construction cost was $10M.

  • WHCRWA Project 22C

    WHCRWA Project 22C

    Costello provided the preliminary engineering, final design, and limited construction phase services for this $3.5M project. The project, which begins at the HCMUD 433 water plant and terminates at the HCMUD 418 water plant in west Harris County, included 14,300 LF of 24” water line and appurtenances for the West Harris County Regional Water Authority. Services included pavement replacement design, traffic control, storm water pollution prevention plans, urban forestry, geotechnical, and environmental services.