Culmen Engineering LLC – Civil Engineering, Texas
Civil Engineering · Texas

Engineering Infrastructure That Serves Communities

Culmen Engineering LLC delivers municipal, commercial, and residential civil engineering solutions across Texas — from utility design and paving to stormwater management and land development.

22+
Years Experience
80+
Projects Delivered
20+
Texas Cities Served

Municipal Engineering & Land Development Experts

Serving City of Dallas DWU & Public Works, City of Fort Worth, and surrounding communities with paving, utility design and H&H study.

Stormwater & Drainage

SWPPP, drainage design, and erosion control for public parks, roadways, and land development.

PE-Licensed & Texas-Based

Professional Engineer licensed in Texas, with deep knowledge of local municipal standards and permitting processes.

Our Engineering Services

Comprehensive civil engineering services for municipal, commercial, and residential clients across Texas.

Paving Design

Concrete and asphalt pavement design including curb and gutter, ADA-compliant ramps, cross sections, and reconstruction for municipal street and alley projects.

Pipeline Design & Rehabilitation

Design of 8" to 30" water and wastewater lines, pipeline rehabilitation, sanitary sewer replacement, and utility relocation coordination.

Stormwater Management

SW3P/SWPPP preparation, drainage area mapping, storm drain plan and profile design, stormwater runoff calculations, and erosion control plans.

Land Development

Site plans, grading plans, utility plans, demolition plans, parking lot design, and full civil plan sets for commercial and residential developments.

Cost Estimating & Specifications

Detailed construction cost estimates and technical specification books for municipal and private development projects.

Flood Studies & H&H Modeling

Hydrology and hydraulic (H&H) analysis using HEC-HMS, HEC-RAS 1D/2D, FLOW-3D, and PCSWMM. FEMA CLOMR/LOMR submittals, dam breach analysis, drainage criteria manuals, and detention pond design.

Drainage Master Planning

City-wide and watershed-scale drainage criteria manuals, master drainage studies, flood plain delineation, LOMR/CLOMR preparation, and stream corridor analysis for municipalities and developers.

TX
Licensed & Based

Texas Civil Engineering, Built on Real Experience

Culmen Engineering LLC is a Domestic Limited-Liability Company organized under the laws of the State of Texas, currently In Existence with the Texas Secretary of State. We are a focused team of four professionals delivering precise, practical civil engineering solutions.

  • Serving municipal clients including City of Dallas, City of Fort Worth, and Dallas Water Utilities (DWU).
  • Experienced in commercial and residential land development across the DFW Metroplex and beyond.
  • PE-licensed principal with 8+ years of hands-on design and project management experience.
  • Committed to on-time, on-budget delivery with transparent communication throughout every project.
Work With Us

Meet the Team

Culmen Engineering is led by licensed Professional Engineers with deep expertise across municipal infrastructure, water resources, flood studies, and land development throughout Texas.

SH

Shaghayegh (Shannel) Habibi, PE

Principal · Professional Engineer

Shannel is a licensed Professional Engineer with over 9 years of progressive civil engineering experience in the Dallas–Fort Worth area. She has served as designer and project manager on a wide range of municipal paving and utility projects, commercial land developments, residential subdivisions, and park improvements. Her expertise spans pipeline design, paving, stormwater management, cost estimating, and technical specifications and SWPPP for public agency clients including the City of Dallas Public Works and DWU, City of Fort Worth.

Principal / Founder
Culmen Engineering LLC · Dallas–Fort Worth, TX
2025 – Present

Founded Culmen Engineering to provide focused, high-quality civil engineering services to municipal and private clients across Texas.

Assistant Project Manager
Dal-Tech Engineering, Inc. · Dallas, TX
6+ Years

Led paving and utility design for City of Dallas, City of Fort Worth, and DWU. Managed approximately 35,000 LF water and 40,000 LF wastewater line projects. Prepared specification books, cost estimates, and SW3P documentation. Clients included Dallas Public Works, Fort Worth Public Works, and DWU.

Graduate Civil Designer
Bannister Engineering, LLC · Mansfield, TX
8 Months

Land development projects including Panda Express restaurants (Temple & Mineral Wells), warehouses in Fort Worth, Richardson retail buildings, and multi-family residential in Grand Prairie. Prepared full civil plan sets: paving, grading, drainage, storm drain, and utility plans.

Civil Designer
Metropolitan Infrastructure, PLLC · Dallas & Garland, TX
14 Months

Municipal, commercial, and residential projects including site plans, grading, drainage, utility design, and structural civil plans (pier & beam foundations, retaining walls). Projects in Frisco, Dallas, Mesquite, and Balch Springs, TX.

WRE

Senior Water Resources Engineer

Water Resources · Hydrology & Hydraulics
PE – Texas BC.WRE CFM OSHA Construction Safety

Our Senior Water Resources Engineer brings over 22 years of civil engineering experience with deep specialization in hydrology and hydraulic (H&H) modeling, flood studies, drainage design, and stormwater infrastructure. He holds the Board-Certified Water Resources Engineer (BC.WRE) designation — the highest post-licensure credential in the water resources field — along with PE licenses in Texas and Arkansas, and Certified Floodplain Manager (CFM) status. His technical toolkit includes HEC-HMS, HEC-RAS (1D and 2D), FLOW-3D, PCSWMM, XPSWMM, ArcGIS, Civil 3D, and OpenRoads Designer.

Featured Projects

A selection of key projects demonstrating our depth across municipal infrastructure, land development, and park improvements.

Water & Wastewater

Water & Wastewater Rehabilitation – Various Locations

Design of approximately 35,000 LF water and 40,000 LF wastewater lines for replacement across multiple Dallas locations.

Client: Dallas Water Utilities (DWU) Year: 2021–2024
Paving & Utility

2022 Bond Year 2 Contract 12 – CPN 104213

8,882 LF water, 2,125 LF sanitary sewer replacement; 2.61 miles paving design and 1.15 miles limited paving design.

Client: City of Fort Worth Year: 2022
Paving & Utility

Water & Sanitary Sewer Replacement – WSM-D, CPN 103619

~10,299 LF water and ~12,663 LF sanitary sewer main replacement including paving design.

Client: City of Fort Worth Year: 2021
Erosion Control

Brownwood Park & Anderson Bonner Park Improvements

Retaining wall design (plan, profile, cross sections) and erosion control improvements with SWPPP for two City of Dallas parks.

Client: City of Dallas Year: 2020–2021
Land Development

Church Land Development – Site Civil Engineering

Full civil engineering set covering site layout, grading, drainage, and all utility work for a church development in Waco, TX.

Location: Waco, TX Year: 2025
Street Reconstruction

The Bottom Phase II & 2018 Bond Street Reconstruction

Street and alley reconstruction including concrete pavement, curb & gutter, ADA ramps, and utility improvements in Dallas and Fort Worth.

Client: City of Dallas / Fort Worth Year: 2019
Flood Study

Slickrock & Horseshoe Creeks Master Drainage Study

Watershed-scale master drainage study using HEC-HMS and HEC-RAS 2D for creek corridor management and flood hazard assessment.

Location: Horseshoe Bay, TX Year: 2024–Present
LOMR / CLOMR

Rolling V Ranch CLOMR & Bar C Ranch LOMR

FEMA CLOMR/LOMR submittals for large-scale residential developments: Rolling V Ranch (1,200 acres, Rhome) and Bar C Ranch Phases 5, 8 & 10 (420+ lots, Fort Worth).

Location: Rhome & Fort Worth, TX Year: 2022–2024
H&H / Detention

Sandy Creek Regional Detention Facilities

Lead civil engineer for design of 100-acre and 50-acre regional detention ponds with full bid package and specifications for Sandy Creek improvements.

Location: Jasper, TX Year: 2020–2021
Alley Reconstruction

Alley Reconstruction Group 17-1304

Alley reconstruction including pavement, drainage, and utility improvements as part of the City of Dallas capital improvement program.

Client: City of Dallas Year: 2019
Street Reconstruction

Street Reconstruction Group 17-1305

Street reconstruction including concrete pavement, curb & gutter, ADA ramps, and utility improvements in Dallas.

Client: City of Dallas Year: 2019

Why Clients Choose Us

Local knowledge, proven processes, and a PE-led team that is invested in your project's success.

22+

Years of Experience

Deep hands-on expertise from municipal utilities to large-scale flood studies and land development across Texas.

75K+

LF Pipeline Designed

Water, wastewater, and storm drain lines designed and rehabilitated across North Texas.

1,200+

Acres Flood-Modeled

Watershed-scale H&H studies, FEMA LOMR/CLOMR submittals, and detention pond design.

3

Advanced Credentials

PE (TX), Board-Certified Water Resources Engineer (BC.WRE), and Certified Floodplain Manager (CFM).

Start Your Project Today

Have a project in mind or need civil engineering services? Contact us and we'll respond within one business day.

Contact Information

Reach our principal directly — we're a focused team that gives every client personal attention.

Location

Dallas–Fort Worth Metroplex, Texas

Office Hours

Monday – Friday: 8:00 AM – 5:00 PM CST