Thirty-three members of Congress have steered more than $300 million in earmarks and other spending provisions to dozens of public projects that are next to or within about two miles of the lawmakers’ own property, according to a Washington Post investigation.

Under the ethics rules Congress has written for itself, this is both legal and undisclosed.

The Post analyzed public records on the holdings of all 535 members and compared them with earmarks members had sought for pet projects, most of them since 2008. The process uncovered appropriations for work in close proximity to commercial and residential real estate owned by the lawmakers or their family members. The review also found 16 lawmakers who sent tax dollars to companies, colleges or community programs where their spouses, children or parents work as salaried employees or serve on boards…

Mere proximity to a lawmaker’s property does not establish that an earmark was unwarranted. In some cases, the public benefit of the spending was large, improving life for thousands. In others, the benefit appeared narrower. In some cases, the work was within a mile or two of the properties; in others, it was directly in front of the lawmaker’s land.