The history of the road runs deeper than that, though. Early in the road’s history, the southern section (between Delsea Drive and the Black Horse Pike) and the northern section (along Kings Highway between the Marlton Pike and NJ 38) were taken over by the state. But the state planned to build a bypass of downtown Haddonfield, which was begun but never completed. As a result, signs declaring the downtown route as “temporary” NJ 41 were erected. This stretch of highway remained under the jurisdiction of Camden County, and it was eventually designated as SR 573. In 2001, sixty years after the Haddonfield bypass was started, the state officially gave up on the project and decided that NJ 41 officially ran along its “temporary” routing on SR 573. However, the TEMPORARY banner still exists on road signs along the county-maintained stretch, and signal overheads (with black on white lettering within Haddonfield borough) proclaim the road as only SR 573.
The short stretch of the Haddonfield bypass that was built exists today as Brace Road, NJ 154.
NJ 73 was originally conceived as NJ S-41, a two-way spur off NJ 41 between Berlin and Palmyra; it has since been lengthened south of Berlin.
| Mile | Street Name | Feature | ||
Road continues northward as  Kings Hwy |
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| 14.08 | Northern terminus of , Maple Shade Twp, Burlington Co |
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| 13.98 | |
 |
Old Kings Hwy | |
| 13.60 | |
 |
overpass | |
| 13.37 | |
 |
overpass | |
| 13.20 | |
Maple Shade Twp, Burlington Co Cherry Hill Twp, Camden Co |
||
| 13.20 | |
Pennsauken Creek | bridge | Pennsauken Creek |
| 12.85 | Kings Hwy | Cherry Tree Ln | |
Kings Croft Dr |
| 12.59 | Kings Hwy |  Church Rd |
|
Church Rd |
| 11.85 | Kings Hwy |  Chapel Ave |
|
Chapel Ave |
| 11.53 | Kings Hwy | Business entrance | |
Chelton Pkwy |
| 11.22 | Kings Hwy | Miami Ave | |
Miami Ave |
| 10.98 | Kings Hwy | Shopping center entrance | |
Ramp from  |
| 10.83 | Kings Hwy | Marlton Tpk |
|
Marlton Tpk |
| 10.68 |  |
|
Brace Rd |
|
| 10.68 | |
NJDOT jurisdiction Camden Co jurisdiction |
||
| 10.31 | Kings Hwy | Little Timber Creek | culvert | Little Timber Creek |
| 9.80 | Kings Hwy |  Park Blvd |
|
Park Blvd |
| 9.74 | Kings Hwy | Cherry Hill Twp, Camden Co Haddonfield Boro, Camden Co |
||
| 9.74 | Kings Hwy | North Branch Cooper River | culvert | North Branch Cooper River |
| 9.28 | Kings Hwy |  Grove St |
|
Potter St |
| 9.12 | Kings Hwy |  Haddon Ave |
|
Haddon Ave |
| 8.99 | Kings Hwy | Timber St | |
|
| 8.85 | Kings Hwy | Port Authority Transit Railroad | overpass | Port Authority Transit Railroad |
| 8.75 | Kings Hwy | |
Warwick Rd |
|
| 8.59 | Kings Hwy |  West End Ave |
|
|
| 8.55 | Chews Landing Rd | SPUR Kings Hwy |
|
|
| 8.13 | Chews Landing Rd |  Hinchman Ave |
||
| 7.79 | |
Haddonfield Boro, Camden Co Haddon Heights Boro, Camden Co |
Haddonfield Boro, Camden Co Barrington Boro, Camden Co |
|
| 7.73 | Highland Ave | Hutchinson Ave |
||
| 7.24 | |
 White Horse Pike |
|
White Horse Pike |
| 7.19 | Clements Bridge Rd |  |
underpass | |
| 7.10 | Clements Bridge Rd |  East Atlantic Ave |
East Atlantic Ave |
|
| 7.09 | Clements Bridge Rd | Haddon Heights Boro, Camden Co Barrington Boro, Camden Co |
||
| 7.09 | Clements Bridge Rd | Railroad | at grade | Railroad |
| 6.77 | Clements Bridge Rd |  1 Ave |
||
| 6.61 | Clements Bridge Rd |  Gloucester Pike |
|
Gloucester Pike |
| 6.26 | Clements Bridge Rd |   New Jersey Turnpike |
overpass | New Jersey Turnpike |
| 5.85 | Clements Bridge Rd | Beaver Brook | culvert | Beaver Brook |
| 5.79 | Clements Bridge Rd | Barrington Boro, Camden Co Runnemede Boro, Camden Co |
||
| 5.59 | Clements Bridge Rd | 9 Ave | |
Pine Ave |
| 5.52 | Clements Bridge Rd | |
Stratford Ave Schubert Ave  |
|
| 4.95 | Clements Bridge Rd | Camden Co jurisdiction NJDOT jurisdiction |
||
| 4.95 | Clements Bridge Rd |  Black Horse Pike |
|
Black Horse Pike |
| 4.64 | Clements Bridge Rd | Branch Big Timber Creek | culvert | Branch Big Timber Creek |
| 4.17 | Clements Bridge Rd | Runnemede Boro, Camden Co Gloucester Twp, Camden Co |
||
| 4.17 | Clements Bridge Rd | |
Evesham Rd Station Ave  |
|
| 4.12 | Clements Bridge Rd | Runnemede Boro, Camden Co Deptford Twp, Gloucester Co |
Gloucester Twp, Camden Co Deptford Twp, Gloucester Co |
|
| 4.12 | Clements Bridge Rd | Big Timber Creek | bridge | Big Timber Creek |
| 3.86 | Hurffville Rd | Clements Bridge Rd |
|
|
| 3.45 | Hurffville Rd | |
Creek Ln | |
| 3.37 | Hurffville Rd |  North-South Freeway |
overpass | North-South Freeway |
| 3.19 | Hurffville Rd | Deptford Center Rd | |
|
| 2.62 | Hurffville Rd | Eagle Way | |
|
| 2.23 | Hurffville Rd |  Cooper St |
|
Cooper St |
| 1.80 | Hurffville Rd |  Good Intent Rd |
|
Good Intent Rd |
| 1.57 | Hurffville Rd |  County House Rd |
|
County House Rd |
| 0.00 | Hurffville Rd |  Delsea Dr |
|
Egg Harbor Rd |
| 0.00 | Southern terminus of , Deptford Twp, Gloucester Co |
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| Road continues southward as Delsea Dr |
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