| | C | Northern Central rights-of-way |
| | C | Green Spring Valley rights-of-way |
| | C | Dam and Related Improvements |
| | C | Conduit |
| | C | East Carriage Drive |
| | C | Foundation Wall at Parking Area |
| | C | Culvert at Parking Area |
| | C | Arched Stone Bridge at East Carriage Drive |
| | C | Bridge Abutments at Bridge South of the Dam |
| | C | West Carriage Drive |
| | C | Bridge Abutments at Northern Central Bridge over Lake Roland |
| | C | Embankment at Northern Central rights-of-way |
| | C | Bridge Abutments at Green Spring Valley Bridge over Jones Falls |
| | C | Arched Stone Bridge at Green Spring Valley rights-of-way |
| | C | Retaining Wall at Green Spring Valley rights-of-way |
| | C | Bridge Abutments at Green Spring Valley rights-of-way, 2400 feet west of Northern Central rights-of-way |
| | C | Bridge Abutments at Green Spring Valley rights-of-way, 1400 feet west of Northern Central R.O.W. |
| | C | Stone Culvert at Green Spring Valley rights-of-way, 1100 feet north of Northern Central rights-of-way |
| | C | Stone Culvert at Green Spring Valley rights-of-way, 800 feet west of Northern Central rights-of-way |
| | C | Track at Green Spring Valley rights-of-way |
| | C | Valve House at Dam |
| | C | Fence at East Carriage Drive |
| | C | Marker at Green Spring Valley rights-of-way |
| (MD 134) over Towson Run | C | BA-1274-1 -- SHA Structure No. 03386X0 |
| | NC | Concession Building |
| | NC | Restroom Building |
| | NC | Caretaker's House |
| | NC | Parking Area at East Carriage Drive |
| | NC | Boat Shelter |
| | NC | Fire Pits |
| | NC | Bridge over Jones Falls South of Dam |
| | NC | Shelter at Relay Hill |
| | NC | Bridge over Jones Falls at Green Spring Valley rights-of-way |
| | NC | Track at Northern Central rights-of-way |