Arbitrum Bridge Transaction Stuck: Why It Happens and How to Fix It
An Arbitrum bridge transaction that looks stuck is usually one of two things: a deposit whose delivery step needs a manual nudge, or a withdrawal that is simply serving its waiting period. Deposits into Arbitrum take roughly ten to fifteen minutes. Withdrawals back to Ethereum take about a week, and that is the design working, not a fault.
Why a token deposit can need a Retry
When you bridge a token such as USDC, the bridge sends Arbitrum a message called a retryable ticket, with the gas for delivery paid up front. Think of a parcel posted with prepaid postage. If fees rise between posting and delivery, the prepaid amount no longer covers it and the parcel waits at the depot until someone tops it up. That is exactly what a stuck deposit is, and the top-up is a button.
Connect the same wallet to the Arbitrum bridge site, open the transaction history, and any deposit in that state shows a Retry. You pay a small amount of gas and it delivers. The ticket stays valid for seven days, so this is worth doing promptly - after that it expires and the value is returned to the address that sent it.
Why the other direction takes a week
Arbitrum publishes its results to Ethereum and gives anyone a window to challenge them before they count. That window is about six and a half days, plus some padding either side. It is a cheque that clears slowly on purpose, so a forged one can be caught. No support agent can shorten it, and a withdrawal cannot be cancelled once started.
At the end you must go back to the bridge and press Claim. That is a second transaction, on Ethereum, that you pay gas for. A large share of funds people describe as lost are simply sitting unclaimed.
What to check, in order
- The bridge site's own history page - it names the exact step.
- The sending transaction on Etherscan or Arbiscan, to confirm it landed at all.
- Your wallet's network and whether the token is added, before assuming anything is missing.
- Whether you have a little ETH on the destination chain to move funds once they arrive.
Use the bridge's own site, typed in by hand, and treat any offer of help that arrives in your messages as theft in progress. If the pending deposit is plain Ether, this guide covers that case, and cross-chain transfer delays explains the pattern across other bridges.