Cross boresare unintended intersections of utility lines. They can occur when a new natural gas line is installed using trenchless methods and intersects an existing underground lateral sewer connection. Asewer lateralis the underground pipe that connects a residence or business to amain sewer line，這是一種大直徑管道，其頻道從汙水處理設施的每一個側向浪費。

檢查側麵是尋找下水道交叉孔的關鍵，識別堵塞和調查非法流。據此，橫向線通常占下水道係統總長度的一半。歐洲環保局. Still, many municipalities fail to inspect them on a regular basis. Ready to start thinking about your lateral lines, but unsure where to start? These resources can help put you on the right path:

Twelve years ago, Neil Buchanan set out to start a small excavation company called Buchanan Contracting, Inc. This small company soon became Kentucky’s most trusted one-stop shop for underground projects. Today, the company has several divisions, including CCTV inspection, cleaning, excavation, sewer testing, CIPP and manhole rehab. The growth was exponential and now the company employs more than twenty workers and inspects close to a million feet of pipe per year. One of the things that sets Buchanan apart from its competitors is the company’s ability to do cross bore inspections.

Inspection experts know the devil is in the details. The more accurate the imagery, the more agile the hardware, and the more exact the reporting, the easier it is to identify existing issues and prevent future crises. The professionals atCompliance EnviroSystems, LLC（CES）已經使用這種洞察力在衛生下水道和風暴排水評估行業中快速上升。

When a sewer fails, the solution is seldom cheap or easy. Digging it up can be particularly costly, as well as disruptive to residential customers and road traffic. To avoid this, methods have emerged allowing sewers to be fixed without excavation. These methods are referred to collectively as “trenchless technologies.”

沒有兩個下水道管道是一樣的。男人。y differ significantly in terms of size (both diameter and length), pipe material, effluent characteristics, service connections，土壤組成和水桌。管道也以不同的方式失敗：它們可以破解，泄漏，定居，腐蝕，腐蝕和崩潰。這些故障可以是本地化的，或者它們可以普遍存在。此外，康複的目標可能有所不同：

煤氣線橫梁是潛伏的巨大危險。憑借開闊的施工方法的普及和遺產橫梁的患病率，定位和消除它們對於防止可能致命的爆炸至關重要。建議使用橫向發射履帶的完整橫向檢查，其中遺留跨孔是一種風險，並且在新的硬盤液管線安裝完成時。了解預防，檢測和修複跨孔，並通過這種策劃選擇專家文章：

Gas line cross bores can pose an immense risk to the people living and working nearby. These can linger underground, undetected until a sewer backup demands attention. Attempting to clean through one of these cross bores can rupture the gas line, leaking gas into homes and businesses, risking a potentially deadly explosion.

A growing number of municipalities and gas utilities are implementing cross bore inspection programs to locate and eliminate risky cross bores before a worst case scenario occurs. With this comes a growing need for contractors capable of inspecting sewer laterals. The few contractors who do perform these services are often inundated with large projects and unable to meet the demand. Sewer inspection contractors have the opportunity to leverage their position and, with the right sewer inspection camera and retrofit, take advantage of these lucrative contracts.

A cross bore occurs when a new natural gas line is installed using trenchless methods and intersects an existing underground lateral sewer connection. If not immediately identified, a gas-line cross bore can go undetected until it causes a backup in the sewer lateral. At that point, the resident will summon a plumber, whose attempts to clear the lateral may cause the gas line to rupture. When that happens, the escaping gas can accumulate in the adjoining residence and cause an explosion. This scenario can be avoided with a sewer lateral launch inspection wherever a new gas line is installed. According to the Gas Technology Institute there have been 18 accidents resulting from cross bores from 2002 to 2015—a number that the Cross Bores Safety Association says is more likely an understatement (source).