The national average for on-highway diesel fell to $5.35/gal as of April 27 — down $0.05 from the prior week. While this marks the third consecutive week of declines from the mid-April peak, it is not a structural shift. Fuel costs remain $1.84/gal higher year-over-year (+52%). For shippers, fuel surcharges written before March are still materially underpriced for today's cost environment.
More concerning is the capacity picture underneath the fuel volatility. Truck availability just hit its lowest Week 17 level on record. Spot load posts are up 42% year-over-year, while truck posts are down 7%. The market is not softening — it is tightening rapidly. The spread between demand and available capacity is the defining dynamic of Q2.
The regulatory environment is adding further friction. Operation Highway Shield in Florida recently pulled dozens of commercial drivers off the road for language and licensing violations, and new FMCSA Clearinghouse identity verification rules took effect last week. These headwinds ensure carrier cost floors are not coming down.
What looks like three separate seasonal events is one continuous tightening sequence. It starts with Catalyst 1: CVSA Roadcheck Week (May 12–14). During this 72-hour blitz, available capacity drops sharply as carriers park trucks to avoid inspection. Rates firm immediately as shippers compete for fewer trucks.
Catalyst 2 hits immediately after: The Memorial Day Surge. Retail and CPG shippers flood the market in the two weeks prior to the holiday to position inventory. This demand surge hits before post-Roadcheck truck supply has fully recovered, spiking the load-to-truck ratio from both sides simultaneously.
Catalyst 3 is the Produce Season ripple effect. Florida is in full Shortage for the second consecutive week, with the Miami-to-New York lane jumping 35%. Imperial/Coachella Valley just opened at a Slight Shortage, and Vidalia onions are now at market. As reefer capacity is pulled from the dry van network to cover produce, the tightening spreads across all equipment types.
The data confirms the shift. Dry van linehaul spot rates are up 25% year-over-year. Flatbed linehaul rates just hit a new YTD high, sitting only pennies away from the all-time record set in June 2021. And the reefer load-to-truck ratio surged to 13.2 last week.
Pickett Research confirms we are deep into Cycle 6 of the US TL Spot Linehaul Rate Cycle, forecasting rates up 45% YoY by the end of 2026. The window to lock in favorable pricing is closing fast.