| US 45 Alternate |
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| Southern Terminus |
 The southern terminus of US 45 Alternate is at US 45 in Brooksville. The route begins as part of a partial Y-interchange. Photo by Robert Lee on 4/2/2006.  Photo of the interchange. Signage is on the shoulders instead of overhead. Photo by Robert Lee on 4/2/2006.  When the interchange was constructed, MS 388 was extended from US 45 to US 45 Alternate and the relocated Old Highway 45. This is the view on MS 388 WB. Photo by Robert Lee on 4/2/2006.  This is the view on Old Highway 45 NB. US 45 Alternate is straight ahead in the background. Photo by Robert Lee on 4/2/2006. |
| Northern Terminus |
 The northern terminus of US 45 Alternate is at US 45/ MS 145 interchange in Shannon. The interchange also serves as the southern terminus of the Lee/Prentiss County segment of MS 145. This is the signage on US 45 Alt NB as US 45 Alt ends. Photo by Robert Lee on 11/20/2005.  This is the signage on MS 145 SB just west of the US 45/US 45 Alt SB ramps. Photo by Robert Lee on 11/20/2005.  This is the signage on US 45/278 NB just east of the US 45/US 45 Alt NB ramps. Photo by Robert Lee on 11/20/2005.  This is the signage on MS 145 NB just east of the US 45/US 45 Alt SB ramps. Photo by Robert Lee on 11/20/2005.  This is the new overhead sign on US 45/278 SB just north of the US 45/US 45 Alt/MS 145 interchange. This sign was installed after US 278 was extended but before MDOT decided to sign US 278. Photo by Robert Lee on 11/20/2005.  This is the signage on US 45 SB for the MS 145 ramp. Photo by Robert Lee on 11/20/2005.  This is the only signage for US 45 Alt on US 45/278 SB. Photo by Robert Lee on 11/20/2005. |