Problem
Solution
A growing city and a gateway that cannot keep up
Interstate 10 is one of the most heavily traveled freight and passenger corridors in the country, and in Indio, the Monroe Street interchange is how the City connects to it. For years, that connection has been fraying. Traffic volumes have grown steadily as Indio has added residents, retail, and tourism destinations, but the interchange geometry has not changed. The result is predictable: peak-hour backups, degraded safety conditions, and a bottleneck that limits the economic throughput of the entire corridor.
This is not a problem that can be managed around. It requires reconstruction. And at $175.6 million in total project cost, it requires a sophisticated funding strategy to get there.
How STBG funding works — and why it is competitive
The Surface Transportation Block Grant program is one of the largest federal-aid highway programs, distributing billions annually to states and metropolitan planning organizations for surface transportation projects. Within the SCAG region, which covers much of Southern California, STBG funds are allocated through a competitive process that weighs mobility benefits, safety outcomes, regional significance, and project readiness.
Getting $30 million out of that process for a single interchange project requires demonstrating that the investment checks every box: clear need, documented demand, a credible cost estimate, and a project scope aligned with the program's stated priorities. B&A built that case systematically, from initial positioning through final submission.
What the reconstructed interchange will deliver
The project will reconstruct and widen the Monroe interchange to address the full range of deficiencies in the current configuration. When complete, the improvements will produce measurable outcomes across four dimensions:
- Traffic operations and capacity
- Modernized interchange geometry eliminates existing bottlenecks and accommodates both current volumes and projected future demand as Indio continues to grow.
- Safety improvements
- Reconfigured ramps, improved sight lines, and updated design standards reduce conflict points and crash risk at one of the city's highest-volume interchange locations.
- Regional mobility
- A more efficient Monroe interchange improves throughput along the broader I-10 corridor, reducing congestion that ripples outward to connecting arterials and neighboring communities.
- Emissions reduction
- Reduced idling and stop-and-go conditions at peak hours translate directly into lower vehicle emissions at one of the city's most congested locations.
Positioning a local project within a regional funding framework
One of the distinctive challenges of STBG funding through a metropolitan planning organization like SCAG is that local project needs must be framed in regional terms. SCAG's funding decisions reflect the transportation priorities of a six-county region. A project that reads as a purely local capacity improvement is a harder sell than one that demonstrably serves regional mobility goals.
B&A's strategic positioning work translated Indio's local need into a regional argument: the Monroe interchange is not just a city gateway, it is a node in the regional transportation network, and its underperformance has costs that extend well beyond Indio's city limits. That framing resonated with reviewers, and the $30 million award reflects it.
Leveraging federal dollars for long-term economic growth
At $175.6 million, the Monroe Interchange Improvements Project is one of the most significant transportation infrastructure investments in Indio's history. The $30 million in federal STBG funding B&A secured does not cover the full cost, but it unlocks the project in a way that local resources alone could not. Federal participation at this level signals project credibility, attracts additional funding partners, and creates the financial foundation for a project of this magnitude to move forward.
For Indio, the long-term return extends well beyond the construction budget. A modernized I-10 gateway supports continued commercial and residential development, improves the City's attractiveness to employers and investors, and delivers the kind of infrastructure quality that growing cities compete on. B&A is proud to have helped make that investment possible.