Oak Hill Parkway
TxDOT Austin District
Colorado River Constructors / CRC (Fluor and Balfour Beatty JV)
Austin, TX

TWG is providing subsurface utility engineering and coordination for this 7-mile design-build project. Our team coordinates utility relocation with 13 utility owners while managing the negotiation of 11 TxDOT PUAA/UAAA agreements and subsequent amendments. Additionally, we are coordinating design for all City of Austin W&WW relocations and verifying all utility design is per the TxDOT’s UAR and compatible with the project.


I35 Northeast Expansion (NEX)
TxDOT San Antonio District
Guadalupe and Bexar Counties, TX

TWG provides subsurface utility engineering and utility coordination for this 7-mile design-build project as part of the successful design-build team.


Mobility35 (Capital Area)
Williamson, Travis and Hays Counties, TX

As a team member of the general engineering consultant (GEC), the Whiddon Group (TWG) provides utility services for the entire 79 miles of I35 through the TxDOT Austin District. Including oversight of all utility coordination efforts by segment design teams for the north and south segments. Additionally, TWG provides cost estimating and procurement support for the proposed design-build section between SH290 on the north to SH 290 on the south.

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US183 South Project
Central Texas Regional Mobility Authority (CTRMA)
Colorado River Constructors / CRC (Fluor and Balfour Beatty JV)
Austin, TX

TWG provided management of all aspects of the utility relocation effort, including coordination with roadway designers, utility design consultants, and utility owners. We managed all supplemental SUE investigations as well as provided daily construction support. The TWG team prepared all 27 utility adjustment agreements as well as 24 agreement amendments.


US183A Phase III Project
Central Texas Regional Mobility Authority (CTRMA)
Austin, TX

TWG is providing utility coordination for the design-bid-build project north of Austin, TX. The project includes managed toll lanes by the introduction of main lanes in the existing median. Many utilities are located within the median and include old easements left by the previous roadway project managed by the County. Our team coordinates the subsurface utility engineering and works closely with the roadway engineer to identify alternatives to relocations to save time and money. The TWG team has drafted the utility relocation agreements used by CTRMA on design-bid-build projects and will negotiate the terms with each utility owner.


CTRMA’s SH45SW Project
Central Texas Regional Mobility Authority (CTRMA)
Austin, TX

TWG provided coordination for the design-bid-build project in south Austin, TX. The project included specific environmental challenges, including karst features and its location within the sensitive Edwards Aquifer recharge zone. TWG staff coordinated the location and construction of utilities to ensure compliance with the environmental requirements while adhering to the project schedule. TWG also provided engineering of underground electrical duct bank.  The roadway project was left with all utilities outstanding and no special provisions pertaining to utility clearance dates, creating exposure to contractor claims. Our team coordinated with each utility owner, the CTRMA, the roadway contractor, and the project’s construction management consultant to ensure that no claims or construction delays were realized.


FM Area Diversion Project
Fargo, ND

The Red River flows north to Canada. With the natural melting cycle, early spring rains, frost depth, soil moisture, and ice conditions on the river, a threat of flooding is created regularly. The FM Area Diversion Project will protect from catastrophic floods and changing FEMA floodplain maps. The Whiddon Group (TWG) provides management and coordination of third party and utility MOU’s for 32 entities. We are also providing P3 procurement services, including RFP agreement drafts, review of design, and estimating for proposed utility relocations. TWG hosts regularly scheduled meetings with each utility owner, GEC team, and project owner. During construction, TWG will monitor P3 Developer activities during design and construction.


IH635 LBJ East
TxDOT Dallas District
Dallas, Garland, and Mesquite, TX

The Whiddon Group (TWG) provides all utility coordination and utility design engineering support for the $1.6B design-build project. We manage all aspects of the utility coordination and engineering efforts, including SUE investigations, the development of the utility alignment concept plan, CADD efforts, verification and documentation of property interests, management of utility easement acquisition, and the review for reasonableness of costs of relocations. TWG also ensures that all utility engineering complies with the provisions of TxDOT’s Utility Accommodation Rules (UAR) and is compatible with the highway project. We are directly responsible for developing and negotiating all utility adjustment agreements, preparing each relocation for construction. Our project engineer coordinates closely with all other project disciplines by conducting interdisciplinary reviews (IDR) of all roadway plans, including MOT, roadway, bridge, drainage, and ITS.


Cotton Belt Silver Line
Dallas Area Rapid Transit (DART)
Archer Western Herzog

TWG is currently serving as Franchise Utility Engineers for the 26-mile Cotton Belt Project. Our team is responsible for tracking and projecting costs, collaborating with utility owners and facility designers, and drafting and processing relocation agreements for DART’s execution. The corridor extends between DFW Airport and Shiloh Road in Plano and traverses seven cities: Grapevine, Coppell, Dallas, Carrollton, Addison, Richardson, and Plano. The Cotton Belt "Silver Line" Project's primary purpose is to provide passenger rail connections and service that will improve mobility, accessibility, and system linkages to major employment, population, and activity centers in the northern part of the DART Service Area.


TxDOT’s Houston District’s SH 249 Extension
WBCCI (Williams Brothers)
Montgomery and Grimes Counties, TX

The Whiddon Group (TWG) is currently providing overall Utility Management for the 24-mile new alignment roadway. The project is divided into two segments, with one being tolled and the other non-tolled. The inclusion of tolled and non-tolled segments as well as utilities located within property interests and utilities permitted within public right of way, resulted in several different compensable scenarios and corresponding eligibility calculations. TWG staff managed all aspects of the utility work associated with the project, including coordination with utility owners, conflict resolution, evaluation of relocation alternatives, and the preparation of utility relocation agreements. TWG is also providing engineering of communications joint trench, waterlines, and several natural gas and crude pipelines.


TxDOT Dallas District’s I-35E Southern Gateway Project
Pegasus Link Constructors / PLC (Fluor & Balfour Beatty JV)
Dallas, TX

TWG provided utility coordination and engineering for the $666 Million design-build project to widen I-35E south of downtown Dallas. Our staff negotiated 41 utility adjustment agreements with owner reimbursable costs exceeding $16 Million. Our team provided the review of utility relocation engineering for compliance with codes and regulations, the reasonableness of costs, and compatibility with the highway design and construction. TWG also monitored the utility construction, verifying installations are per plans and specifications, overseeing traffic control installations, providing engineering for field changes, and managing the change order process for all utility adjustments.