1. The finalized work quantity of outdoor drainage inspection wells shall be calculated according to the number of wells. According to the corresponding quota sub items of different specifications and depths, the unfixed work quantity shall be calculated according to the actual volume, and the unfixed inspection well quota shall be applied.
2. Municipal quota, take inspection wells, take prefabricated concrete pipes or corrugated pipes, add cushion if there is sand gravel cushion, and excavate earthwork.
3. If it is a set of sub items for calculation, the sub items for calculation include earthwork, masonry, plastering and cushion. If you don't understand it or don't have time to calculate it, you can find a substitute, and the cost varies according to the situation.
4. Other methods: search the budget cost unit online, or entrust others to do it on a third-party platform.