Who gets the next toll dollar?

Construction proceeds and toll revenue run on different clocks

At issuance, investors pay for bonds and the proceeds enter the accounts specified by the financing documents. A construction fund pays eligible project costs; some transactions also fund reserves, issuance costs or interest during construction. A later refunding uses proceeds to replace existing borrowing. It is not automatically money for a new road.

During operation, the revenue fund receives the defined receipts. Documents then direct amounts to current expenses, debt-related accounts and other permitted uses. The legal definitions can differ from the income statement: “net revenues” may be a defined covenant measure with specified additions and exclusions. NTTA’s agreement separates the construction fund in Article IV from tolls, revenues and funds in Article V. Trust agreement; 2025 official statement.

A declared $100 million annual waterfall

Assume a road collects $100 million in annual cash, spends $30 million on operations, owes $40 million of senior debt service and $10 million of junior debt service, and needs an $8 million renewal allocation. These are round illustrative inputs. They describe no particular Texas bond issue.

Operations leave $70 million before debt service. Dividing that by $50 million of combined debt service gives 1.40 times coverage. Paying both debt tiers leaves $20 million; funding renewal leaves $12 million. The remaining $12 million could support eligible capital, reserves or a permitted distribution, subject to the actual agreement. It is not automatically a dividend.

The model’s sequence is simplified for arithmetic. Real documents can require reserve replenishment, maintenance deposits, subsidies or other allocations in a different order, and payment dates matter. Use the issuer’s actual flow of funds when deciding which account has priority.

Stress the expense line as well as the traffic

A 20% rise in operating costs increases the $30 million expense to $36 million. With receipts unchanged, combined debt coverage falls from 1.40 to 1.28 times, and cash after renewal falls from $12 million to $6 million. The six-million-dollar change is a 50% reduction in the final cushion.

Now combine that cost increase with a 10% decline in collected cash. Net cash before debt becomes $54 million, coverage becomes 1.08 times, and the renewal-adjusted balance becomes −$4 million. The simplified road still produces enough cash to meet $50 million of scheduled debt service, but not enough to meet that service and the assumed $8 million renewal allocation. This is the gap that a coverage headline can hide.

Use the controls to vary receipts, operating costs and renewal needs independently. A ratio below the example’s 1.25-times screening threshold flags that declared screen; it does not determine a legal default. An actual covenant can use another numerator, denominator, test period and remedy.

A real system shows why definitions matter

NTTA’s FY2025 report presents $1.105 billion of trust-basis net revenues and $675.7 million of calculated debt service, or 1.64 times. The Note 2 reconciliation is labeled unaudited within the audited annual report. Its numerator adds back reserve-maintenance and capital-fund expenses. Those add-backs help explain the covenant calculation but do not eliminate the underlying work.

The audited System cash-flow statement reports $1.0435 billion of operating cash and $718.0 million of principal and interest cash payments. Subtracting those payments and $229.3 million of capital purchases leaves a $96.2 million screen before other financing and investing flows. The NTTA cash and maintenance reconciliation follows the numbers to closing cash and separates bond principal from premium accounting. FY2025 report, pages 23 and 31–32.

That comparison is not a ranking of our illustrative road against NTTA. It is a demonstration that definitions have to match before two coverage ratios can be compared. A single-road concession and a public network can have different pledges, public contributions and permitted uses.

Retiring one bond does not end the funding problem

A paid-off series no longer needs its scheduled debt service, but the road still needs operating cash and replacement investment. Other securities can remain outstanding. If the original series was refinanced, a replacement financing may hold the claim. A financing maturity and a public decision to remove tolls are different events.

This is also why a private concession ending is not the same event as a public system’s last bond maturity. The concession specifies a time-limited operating and revenue right; the public owner decides the subsequent funding arrangement within its legal authority. The paid-off-road investigation traces that distinction through actual Texas systems.

Read five provisions before comparing the headline yield

Identify the issuer and pledged system. Establish whether the security relies on gross receipts or defined net revenues and what operating costs are paid before debt. Read the lien tier, coverage test, reserve requirements, additional-bonds test and permitted uses of residual funds. Finally, examine the renewal schedule and the debt maturities together. A high current ratio does not fund a future capital peak automatically.

HCTRA illustrates one permitted public use: transfers to other county transportation facilities. SH 130 illustrates how a concession company’s lenders can become owners after restructuring. The HCTRA cash study and SH 130 bankruptcy case provide the two comparisons; the ownership hub keeps their public title and private claims distinct.