diff --git a/cross-chain/arbitrum/deploy_l2/00_resolve_base_wormhole_gateway.ts b/cross-chain/arbitrum/deploy_l2/00_resolve_base_wormhole_gateway.ts
new file mode 100644
index 000000000..598d1c494
--- /dev/null
+++ b/cross-chain/arbitrum/deploy_l2/00_resolve_base_wormhole_gateway.ts
@@ -0,0 +1,28 @@
+import type { HardhatRuntimeEnvironment } from "hardhat/types"
+import type { DeployFunction } from "hardhat-deploy/types"
+
+const func: DeployFunction = async function (hre: HardhatRuntimeEnvironment) {
+  const { helpers, deployments } = hre
+  const { log } = deployments
+
+  const BaseWormholeGateway = await deployments.getOrNull(
+    "BaseWormholeGateway"
+  )
+
+  if (
+    BaseWormholeGateway &&
+    helpers.address.isValid(BaseWormholeGateway.address)
+  ) {
+    log(
+      `using existing BaseWormholeGateway at ${BaseWormholeGateway.address}`
+    )
+  } else if (hre.network.name === "hardhat") {
+    log("using fake BaseWormholeGateway for hardhat network")
+  } else {
+    throw new Error("deployed BaseWormholeGateway contract not found")
+  }
+}
+
+export default func
+
+func.tags = ["BaseWormholeGateway"]
diff --git a/cross-chain/arbitrum/deploy_l2/15_update_with_base_in_wormhole_gateway_mapping.ts b/cross-chain/arbitrum/deploy_l2/15_update_with_base_in_wormhole_gateway_mapping.ts
new file mode 100644
index 000000000..fbdfa25d2
--- /dev/null
+++ b/cross-chain/arbitrum/deploy_l2/15_update_with_base_in_wormhole_gateway_mapping.ts
@@ -0,0 +1,39 @@
+import type { HardhatRuntimeEnvironment } from "hardhat/types"
+import type { DeployFunction } from "hardhat-deploy/types"
+
+const func: DeployFunction = async function (hre: HardhatRuntimeEnvironment) {
+  const { deployments, getNamedAccounts, ethers } = hre
+  const { execute, log } = deployments
+  const { deployer } = await getNamedAccounts()
+
+  // Fake BaseWormholeGateway for local development purposes only.
+  const fakeBaseWormholeGateway =
+    "0x1af5DC16568EFF2d480a43A77E6C409e497FcFb9"
+
+  // See https://docs.wormhole.com/wormhole/blockchain-environments/evm#base
+  // This ID is valid for both Base Testnet and Mainnet
+  const baseWormholeChainID = 30
+
+  const baseWormholeGateway = await deployments.getOrNull(
+    "BaseWormholeGateway"
+  )
+
+  let baseWormholeGatewayAddress = baseWormholeGateway?.address
+  if (!baseWormholeGatewayAddress && hre.network.name === "hardhat") {
+    baseWormholeGatewayAddress = fakeBaseWormholeGateway
+    log(`fake BaseWormholeGateway address ${baseWormholeGatewayAddress}`)
+  }
+
+  await execute(
+    "ArbitrumWormholeGateway",
+    { from: deployer, log: true, waitConfirmations: 1 },
+    "updateGatewayAddress",
+    baseWormholeChainID,
+    ethers.utils.hexZeroPad(baseWormholeGatewayAddress, 32)
+  )
+}
+
+export default func
+
+func.tags = ["SetBaseGatewayAddress"]
+func.dependencies = ["BaseWormholeGateway"]
diff --git a/cross-chain/arbitrum/external/arbitrumGoerli/BaseWormholeGateway.json b/cross-chain/arbitrum/external/arbitrumGoerli/BaseWormholeGateway.json
new file mode 100644
index 000000000..74c39592d
--- /dev/null
+++ b/cross-chain/arbitrum/external/arbitrumGoerli/BaseWormholeGateway.json
@@ -0,0 +1,3 @@
+{
+  "address": "0xe3e0511EEbD87F08FbaE4486419cb5dFB06e1343"
+}
diff --git a/cross-chain/arbitrum/external/arbitrumOne/BaseWormholeGateway.json b/cross-chain/arbitrum/external/arbitrumOne/BaseWormholeGateway.json
new file mode 100644
index 000000000..6571efe8d
--- /dev/null
+++ b/cross-chain/arbitrum/external/arbitrumOne/BaseWormholeGateway.json
@@ -0,0 +1,3 @@
+{
+  "address": "0x09959798B95d00a3183d20FaC298E4594E599eab"
+}
diff --git a/cross-chain/optimism/deploy_l2/00_resolve_base_wormhole_gateway.ts b/cross-chain/optimism/deploy_l2/00_resolve_base_wormhole_gateway.ts
new file mode 100644
index 000000000..598d1c494
--- /dev/null
+++ b/cross-chain/optimism/deploy_l2/00_resolve_base_wormhole_gateway.ts
@@ -0,0 +1,28 @@
+import type { HardhatRuntimeEnvironment } from "hardhat/types"
+import type { DeployFunction } from "hardhat-deploy/types"
+
+const func: DeployFunction = async function (hre: HardhatRuntimeEnvironment) {
+  const { helpers, deployments } = hre
+  const { log } = deployments
+
+  const BaseWormholeGateway = await deployments.getOrNull(
+    "BaseWormholeGateway"
+  )
+
+  if (
+    BaseWormholeGateway &&
+    helpers.address.isValid(BaseWormholeGateway.address)
+  ) {
+    log(
+      `using existing BaseWormholeGateway at ${BaseWormholeGateway.address}`
+    )
+  } else if (hre.network.name === "hardhat") {
+    log("using fake BaseWormholeGateway for hardhat network")
+  } else {
+    throw new Error("deployed BaseWormholeGateway contract not found")
+  }
+}
+
+export default func
+
+func.tags = ["BaseWormholeGateway"]
diff --git a/cross-chain/optimism/deploy_l2/15_update_with_base_in_wormhole_gateway_mapping.ts b/cross-chain/optimism/deploy_l2/15_update_with_base_in_wormhole_gateway_mapping.ts
new file mode 100644
index 000000000..854060ea4
--- /dev/null
+++ b/cross-chain/optimism/deploy_l2/15_update_with_base_in_wormhole_gateway_mapping.ts
@@ -0,0 +1,39 @@
+import type { HardhatRuntimeEnvironment } from "hardhat/types"
+import type { DeployFunction } from "hardhat-deploy/types"
+
+const func: DeployFunction = async function (hre: HardhatRuntimeEnvironment) {
+  const { deployments, getNamedAccounts, ethers } = hre
+  const { execute, log } = deployments
+  const { deployer } = await getNamedAccounts()
+
+  // Fake BaseWormholeGateway for local development purposes only.
+  const fakeBaseWormholeGateway =
+    "0x1af5DC16568EFF2d480a43A77E6C409e497FcFb9"
+
+  // See https://docs.wormhole.com/wormhole/blockchain-environments/evm#base
+  // This ID is valid for both Base Testnet and Mainnet
+  const baseWormholeChainID = 30
+
+  const baseWormholeGateway = await deployments.getOrNull(
+    "BaseWormholeGateway"
+  )
+
+  let baseWormholeGatewayAddress = baseWormholeGateway?.address
+  if (!baseWormholeGatewayAddress && hre.network.name === "hardhat") {
+    baseWormholeGatewayAddress = fakeBaseWormholeGateway
+    log(`fake BaseWormholeGateway address ${baseWormholeGatewayAddress}`)
+  }
+
+  await execute(
+    "OptimismWormholeGateway",
+    { from: deployer, log: true, waitConfirmations: 1 },
+    "updateGatewayAddress",
+    baseWormholeChainID,
+    ethers.utils.hexZeroPad(baseWormholeGatewayAddress, 32)
+  )
+}
+
+export default func
+
+func.tags = ["SetBaseGatewayAddress"]
+func.dependencies = ["BaseWormholeGateway"]
diff --git a/cross-chain/optimism/external/optimism/BaseWormholeGateway.json b/cross-chain/optimism/external/optimism/BaseWormholeGateway.json
new file mode 100644
index 000000000..6571efe8d
--- /dev/null
+++ b/cross-chain/optimism/external/optimism/BaseWormholeGateway.json
@@ -0,0 +1,3 @@
+{
+  "address": "0x09959798B95d00a3183d20FaC298E4594E599eab"
+}
diff --git a/cross-chain/optimism/external/optimismGoerli/BaseWormholeGateway.json b/cross-chain/optimism/external/optimismGoerli/BaseWormholeGateway.json
new file mode 100644
index 000000000..74c39592d
--- /dev/null
+++ b/cross-chain/optimism/external/optimismGoerli/BaseWormholeGateway.json
@@ -0,0 +1,3 @@
+{
+  "address": "0xe3e0511EEbD87F08FbaE4486419cb5dFB06e1343"
+}
diff --git a/cross-chain/polygon/deploy_sidechain/00_resolve_base_wormhole_gateway.ts b/cross-chain/polygon/deploy_sidechain/00_resolve_base_wormhole_gateway.ts
new file mode 100644
index 000000000..598d1c494
--- /dev/null
+++ b/cross-chain/polygon/deploy_sidechain/00_resolve_base_wormhole_gateway.ts
@@ -0,0 +1,28 @@
+import type { HardhatRuntimeEnvironment } from "hardhat/types"
+import type { DeployFunction } from "hardhat-deploy/types"
+
+const func: DeployFunction = async function (hre: HardhatRuntimeEnvironment) {
+  const { helpers, deployments } = hre
+  const { log } = deployments
+
+  const BaseWormholeGateway = await deployments.getOrNull(
+    "BaseWormholeGateway"
+  )
+
+  if (
+    BaseWormholeGateway &&
+    helpers.address.isValid(BaseWormholeGateway.address)
+  ) {
+    log(
+      `using existing BaseWormholeGateway at ${BaseWormholeGateway.address}`
+    )
+  } else if (hre.network.name === "hardhat") {
+    log("using fake BaseWormholeGateway for hardhat network")
+  } else {
+    throw new Error("deployed BaseWormholeGateway contract not found")
+  }
+}
+
+export default func
+
+func.tags = ["BaseWormholeGateway"]
diff --git a/cross-chain/polygon/deploy_sidechain/15_update_with_base_in_wormhole_gateway_mapping.ts b/cross-chain/polygon/deploy_sidechain/15_update_with_base_in_wormhole_gateway_mapping.ts
new file mode 100644
index 000000000..d5f4d771d
--- /dev/null
+++ b/cross-chain/polygon/deploy_sidechain/15_update_with_base_in_wormhole_gateway_mapping.ts
@@ -0,0 +1,41 @@
+import type { HardhatRuntimeEnvironment } from "hardhat/types"
+import type { DeployFunction } from "hardhat-deploy/types"
+
+const func: DeployFunction = async function (hre: HardhatRuntimeEnvironment) {
+  const { deployments, getNamedAccounts, ethers } = hre
+  const { execute, log } = deployments
+  const { deployer } = await getNamedAccounts()
+
+  // Fake BaseWormholeGateway for local development purposes only.
+  const fakeBaseWormholeGateway =
+    "0x2af5DC16568EFF2d480a43A77E6C409e497FcFb9"
+
+  // See https://docs.wormhole.com/wormhole/blockchain-environments/evm#base
+  // This ID is valid for both Base Goerli and Mainnet
+  const baseWormholeChainID = 30
+
+  const baseWormholeGateway = await deployments.getOrNull(
+    "BaseWormholeGateway"
+  )
+
+  let baseWormholeGatewayAddress = baseWormholeGateway?.address
+  if (!baseWormholeGatewayAddress && hre.network.name === "hardhat") {
+    baseWormholeGatewayAddress = fakeBaseWormholeGateway
+    log(
+      `fake BaseWormholeGateway address ${baseWormholeGatewayAddress}`
+    )
+  }
+
+  await execute(
+    "PolygonWormholeGateway",
+    { from: deployer, log: true, waitConfirmations: 1 },
+    "updateGatewayAddress",
+    baseWormholeChainID,
+    ethers.utils.hexZeroPad(baseWormholeGatewayAddress, 32)
+  )
+}
+
+export default func
+
+func.tags = ["SetBaseGatewayAddress"]
+func.dependencies = ["BaseWormholeGateway"]
diff --git a/cross-chain/polygon/external/mumbai/BaseWormholeGateway.json b/cross-chain/polygon/external/mumbai/BaseWormholeGateway.json
new file mode 100644
index 000000000..74c39592d
--- /dev/null
+++ b/cross-chain/polygon/external/mumbai/BaseWormholeGateway.json
@@ -0,0 +1,3 @@
+{
+  "address": "0xe3e0511EEbD87F08FbaE4486419cb5dFB06e1343"
+}
diff --git a/cross-chain/polygon/external/polygon/BaseWormholeGateway.json b/cross-chain/polygon/external/polygon/BaseWormholeGateway.json
new file mode 100644
index 000000000..6571efe8d
--- /dev/null
+++ b/cross-chain/polygon/external/polygon/BaseWormholeGateway.json
@@ -0,0 +1,3 @@
+{
+  "address": "0x09959798B95d00a3183d20FaC298E4594E599eab"
+}