Benchmark - 89-1
| Benchmark Number | 89-1 |
|---|---|
| Established In | 1989 |
| Condition | GOOD |
| Latitude | 42.23753 |
| Longitude | -83.10685 |
| Reference Benchmark | No |
| Vertical Datum Code | UNKNOWN |
| Type | PERMANENT_MARKER |
| Setting | VERTICAL |
| Description | A W.S.C. brass plug set vertically in the concrete walkway, 6 metres south of the southwest corner of the gauge house.
Coordinates updated using handheld GPS in 2019, +/-2m. |
| Date | Elevation | Status | Vertical Datum Code |
|---|---|---|---|
| 2019-04-27 | 1.733 | ACTIVE | CDIGLD1985 |