A glimpse into the future tells us that America’s highways will soon carry much more than cars and trucks. A new federal initiative will almost surely transform existing highway and railroad rights-of-way into multi-use infrastructure corridors carrying electric transmission lines, fiber-optic networks, water pipelines and other utilities.
The U.S. Department of Transportation (DOT) formally unveiled the America’s Great Corridors of Commerce initiative on Aug. 26. This voluntary program is designed to encourage state transportation departments and railroads to make portions of existing rights-of-way available for utility infrastructure through public-private partnerships.
The concept addresses several infrastructure challenges at once. Electricity demand is increasing rapidly, transmission capacity is constrained in many parts of the country, demand for fiber-optic infrastructure is growing and acquisition of new linear rights-of-way is costly and time consuming. Federal officials say that placing infrastructure along existing transportation corridors could reduce land acquisition, shorten permitting schedules and create new revenue for transportation agencies.
DOT officials are looking at projections that estimate demand for fiber infrastructure to double by 2029.
The Build America Bureau will administer this new initiative. Under the model now being proposed, transportation agencies and railroads could partner with private-sector partners that would be designated as Corridor Managers. The partners would assume responsibility for design, development, financing, construction, utility leasing, operations and long-term maintenance of infrastructure installed along a corridor.
Revenue generated by utilities leasing space within the right-of-way could then be shared with the public owner and used for improvements to roads, bridges, tunnels, rail infrastructure and possibly for repayment of the initial financing support.
This is not yet a reality because the initiative is still in its earliest stage. However, the DOT published a Request for Information (RFI) on Aug. 18, and comments are due Sept. 12. The agency has announced plans to select up to five initial priority corridors and provide technical assistance, streamlined federal coordination and support for public-private partnership structures. This is a BIG step toward what is called a P3 engagement in industry verbiage.
The first projects have not yet been designated, but several states are already demonstrating how this type of infrastructure development could work. Colorado is one of the most interesting examples.
The Colorado DOT is establishing procedures that will allow high-voltage transmission infrastructure to be located longitudinally within state highway rights-of-way when safety and operational requirements can be met. The state is creating a permitting process for transmission developers and establishing surcharges for access to highway property.
This looming policy change is especially timely because a private developer has already proposed using approximately 52 miles of the Interstate 76 corridor for a high-voltage transmission project.
National Renewable Solutions submitted the proposal through Colorado’s public-private initiatives program. The proposed transmission line would extend along I-76 between approximately mileposts 99 and 152. As part of its proposed compensation to the state for use of highway right-of-way, the developer has offered to install additional fiber and power infrastructure along the corridor.
The proposal illustrates exactly what federal transportation officials are now attempting to encourage nationally: using existing transportation corridors to accommodate major utility infrastructure rather than acquiring entirely new linear rights-of-way.
California offers another large-scale example – this one involves broadband. The California Division of Technology and California Department of Transportation are building an open-access middle-mile broadband network that relies heavily on state highway corridors. As of June, the planned network totaled 8,209 miles across 58 counties.
Construction is occurring along interstate highways and state routes throughout California. Private-sector partners have recently begun installation along approximately 78 miles of U.S. 101, 40 miles of Interstate 680 and 10 miles of Interstate 5.
One portion of the program illustrates the size of individual highway-based broadband projects. The $42.4 million project calls for installation of broadband conduit, fiber-optic cable, vaults and related infrastructure between Interstate 80 and the Sierra County-Plumas County line. Other segments are still moving through pre-construction, design, engineering and permitting, leaving a substantial pipeline of additional work ahead.
Texas is also positioning its highway system for greater broadband co-location. The Texas DOT has established a broadband program specifically intended to coordinate road construction with fiber deployment and encourage public-private collaboration. The agency is also developing a statewide inventory of fiber and conduit assets and experimenting with joint-duct infrastructure. Joint ducts are banks of conduit constructed within highway rights-of-way that multiple broadband providers can access through lease agreements.
Rather than allowing separate telecommunications companies to repeatedly excavate the same highway corridor, TxDOT can install shared conduit infrastructure during transportation construction and lease capacity to providers later.
The department currently has a joint-duct demonstration project underway and expects that initiative to continue through 2028. Other developing procedures that will allow providers to coordinate overlapping fiber routes and share infrastructure deployment costs are being developed.
A January 2026 Government Accountability Office review found that most states had made progress implementing federal requirements intended to encourage broadband providers and transportation agencies to coordinate installations when highway excavation is already planned.
For the private sector, the implications of this shift are obviously significant.
Future transportation corridors may generate work far beyond traditional highway construction. Opportunities will likely involve transmission engineering, substations, fiber installation, utility construction, conduit systems, directional boring, surveying, geotechnical services, environmental work, right-of-way consulting, financial advisory services, public-private partnerships and long-term operations and maintenance.
Private sector infrastructure investors will appreciate this move. The federal Corridor Manager concept would allow private partners to develop and operate infrastructure within publicly controlled corridors while generating revenue from utility tenants.
Perhaps most importantly, the model changes the traditional view of transportation rights-of-way. Instead of functioning solely as land reserved for highways and railroads, the corridors can become valuable infrastructure assets capable of supporting transportation, electricity, broadband, water and other public necessities simultaneously.
The first five federal corridors are yet to be selected. For contractors, engineering firms, utilities and investors, however, that is exactly why this initiative deserves immediate attention. The marketplace is being created before the first major procurements are announced.
