You could use hackneyed, pronounced /ˈhæknɪd/. Here are two of the OED’s senses for it:
- Used so frequently and indiscriminately as to have lost its freshness and interest; made trite and commonplace; stale. 3. Habituated by much practice, experienced; sometimes with the ulterior idea of disgust or weariness.
Hackneyed is especially appealing due to its obvious derivation from hackney, a word used since Chaucer and before for equines of a middling nature and which later were used for equines available for hire, as in a hackney horse, hackney ass, hackney mule, all given by the OED. Using the word hackneyed lends connotative weight to the sense of something that’s now in a bad way as a result of having been used so much over its lifetime of service.
For alternatives, there is also the compound adjective time-worn, which per the OED means:
Worn by process of time; impaired by age.
For simpler terms, you could also turn to tired, worn-out, run-down, or broken-down work just fine as well. Decrepit might work too, but probably not *dilapidated except in figurative use.