A collision between two lorries ended with one of them shedding its load of bricks onto the A14 near the Rothwell junction.
The crash happened at about 3.25pm yesterday (Thursday, May 30) and left hundreds of bricks spilled across both lanes of the eastbound carriageway.
A spokesman for Northamptonshire Police said a JCB was called to clear the bricks from one lane. The other had opened earlier.
The slip road entry from junction 4 (Rothwell) was also temporarily closed.
No-one was said to be injured in the incident.