With the grid inscribed on the landscape with markers and pegs, the actual streets had to be "opened", and they also had to be paid for. The city had no great reserve of money, and no regular income stream, so they developed a mechanism to pay for the opening and building of the streets, and for compensating the landowners whose property would be used for them. The 1807 law had specified that the city would calculate damages to the landowners' property as well as assess the benefits the landowners would receive from the new streets. Any disagreement between the parties could then be appealed to the state supreme court. Unfortunately, such a system would not be sufficient for the number of streets and avenues called for by the Commissioners' Plan, so the Common Council approached the state legislature with a new one, which they approved in a new law in April 1813.