Hertfordshire Council has closed St Johns Road, between Woodford Road and Clarendon Road this morning - and say it could remain shut for up to four days.
The council added: "It is possible that by exposing the hole and then subsequently back-filling, this will cure the problem. A small section will be resurfaced upon completion.
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The pathologist described the injuries as similar to those usually seen in a car crash.
Unlike in the countryside peregrines have no predators in the city and their numbers are on the rise.
You can help keep an eye out for the capital's worst potholes by reporting them on an interactive map.