| 1987-01-A-002 State Route 99 | N/A | N/A | N/A | REAFFIRM PORTION OF S.R. 99 FROM CANYON DIABLO TO JCT. IND. RT. 15 AS A S.R. CORRIDOR. PRIOR RESO. 68-22. |
| 1987-01-A-002 State Route 99 | N/A | N/A | N/A | REAFFIRM PORTION OF S.R. 99 FROM RES. BOUNDARY TO CANYON DIABLO AS A STATE HWY. PRIOR RESOS. 68-22 & 71-91. |
| 1987-01-A-002 State Route 99 | N/A | N/A | N/A | REAFFIRM PORTION OF S.R. 99 FROM LEUPP COR. TO RES. BOUNDARY AS A STATE HWY. PRIOR RESOS. 68-22 & 71-91. |
| 1987-01-A-002 State Route 99 | N/A | N/A | N/A | ESTABLISH & ACQUIRE ADD. R/W FOR CONSTRUCTION OF S.R. 99 FROM CANYON DIABLO TO IND. RT. 15. PRIOR 68-22. |
| 1983-15-A-072 State Route 99 | N/A | N/A | N/A | DELETE S.R.377 & S.R.487 DESIGNATIONS LEAVING ONLY S.R.99 DESIGNATION INTACT PRIOR RESOS. 67-43 & 69-113 |
| 1980-10-A-041 State Route 99 | N/A | N/A | N/A | EXTEND SR 99 OVER PREVIOUSLY EXTABLISHED R/W. |
| 1978-11-A-032 State Route 99 | N/A | N/A | N/A | REDEFINITION & DOCUMENTATION OF EXISTING R/W PRIOR RESO. 69-113. |
| 1978-07-A-021 State Route 99 | N/A | N/A | N/A | REDEFINITION & DOCUMENTATION OF EXISTING R/W PRIOR RESO. 69-113 |
| 1977-18-A-052 State Route 99 | N/A | N/A | N/A | REDEFINE & DOCUMENT EXISTING R/W REQUIRING EXCHANGE EASEMENTS PRIOR RESO. 69-113 |
| 1977-08-A-021 State Route 99 | N/A | N/A | N/A | RESCIND RESO. 69-99 PROJECT CANDELLED |
| 1977-08-A-020 State Route 99 | N/A | N/A | N/A | RESCIND RESO. 69-57 PROJECT CANDELLED |
| 1971- -091 State Route 99 | N/A | N/A | N/A | ACQUIRE R/W FROM STA 00+00 NW TO STA 363+11.56. |
| 1971- -034 State Route 99OLD | N/A | N/A | N/A | ABANDON TO NAVAJO CO.:JCT "OLD" SR 487 & SR 87 IN SE4 SEC.25,T19N,R15E TO SEC.31,T19N,R16E TO RELOCATED SR 99 |
| 1969- -113 State Route 99 | N/A | N/A | N/A | ESTABLISH AS A STATE ROUTE AND STATE HIGHWAY. |
| 1968- -022 State Route 99 | N/A | N/A | N/A | ESTABLISH CORRIDOR, STATE ROUTE & STATE HIGHWAY. |
| 1968- -022 State Route 99 | N/A | N/A | N/A | ESTABLISH CORRIDOR, STATE ROUTE, AND STATE HIGHWAY. |