OR 39's turning to be a bit of a headache.
It turns out that in Klamath Falls, we don't have a parent route-business route relationship, but rather a three-pronged route (like OR 223 in Dallas).
Not only that, but according to the Klamath Falls ODOT map, what we have as Bus 39 is wrong -- in the HB, it begins at Esplanade at the bypass (ORH 50) and heads south into downtown with Bus US 97, then east along ORH 20. The map indicates that the downtown leg of 39 begins at US 97 with Bus 97 then heads north into downtown.
At minimum, Bus 39 will be removed from the HB. OR 39 will have two entries.
Underpinning:
ORH 20 Klamath Falls-Lakeview Highway, from Bus 97's southern terminus with US 97 north into downtown, then east to ORH 50 Klamath Falls-Malin Highway (the OR 39 bypass), overlap ORH 50, then east to Lakeview (as OR 140).
ORH 50 Klamath Falls-Malin Highway, from Bus 97's northern terminus with US 97, east along the Klamath Falls bypass to ORH 20 Klamath Falls-Lakeview Highway, then east along ORH 20, then south toward Merril, then east to Malin and south to the Oregon-California border.
OR 39, from the Oregon-California border just north of Hatfield at the junction of CA 139 and 161, north along ORH 426 Hatfield Highway to ORH 50 Klamath Falls-Malin Highway, then west to Merril and north to ORH 20 Klamath-Falls Lakeview Highway, then west along ORH 20 and 50 to the western junction of ORH 20 and 50. OR 39 then splits, with the downtown route heading west on ORH 20 to US 97 through downtown Klamath Falls, and the bypass routing remaining on ORH 50 to US 97 near Oregon Institute of Technology.
OR 140 follows ORH 50 from its southern junction with ORH 50/OR 39, then east on ORH 20.
Bus US 97 remains unaffected by these changes, though some points may need to be renamed. The portion of Bus US 97 between ORH 20 and 50 does not have an underlying ORH number.