| Tunnel #18 |

East portal of Tunnel #18.

West portal of Tunnel #18.
Statement showing property changes from September 1, 1926, to December 31, 1927 |
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line |
Character of property and description |
Date |
Units |
Number of |
Cost/unit |
Total |
| 1 | Account No. 5 Title Tunnels and Subways | |||||
| 2 | Tunnel No.18 MP 557.8 Single Track Driven | |||||
| 3 | Total Length 639ft. (sta. "I" 816+64 to "I" 823+04) | |||||
| 4 | Lined Length concrete-634 ft. per plans 18653 & C.S.347 | |||||
| 5 | Lined Length timber-626 ft. | |||||
| 6 | Two concrete portals, plans 18247,40548 & 40553 | |||||
| 7 | Excavation-common (invert) | Cu Yd | 134 | .24 | 32 | |
| 8 | Excavation-solid rock | " | 12,735 | 3.70 | 47,120 | |
| 9 | Excavation-solid rock (invert) | " | 404 | 2.50 | 1,010 | |
| 10 | Portal backfill-Loose rock | " | 190 | .24 | 93 | |
| 11 | -Lining- | |||||
| 12 | ...Reinforced concrete | 1926 | " | 2,201 | 13.00 | 28,613 |
| 13 | ...Plain concrete | " | " | 544 | 11.50 | 6,256 |
| 14 | ...Plain concrete (invert) | " | " | 412 | 11.50 | 4,738 |
| 15 | ...Timber-untreated fir | " | m.b.m. | 377.045 | 40.00 | 15,082 |
| 16 | ...Timber-Redwood | " | " | 10.645 | 45.00 | 479 |
| 17 | Packing-cordwood | " | cord | 275 | 7.00 | 1,925 |
| 18 | Reinforcing bars | " | lbs. | 168,938 | .04 | 6,758 |
| 19 | Iron | " | " | 4,178 | .05 | 209 |
| 20 | Creosote paint | " | gallon | 327 | .70 | 229 |
| 21 | Tunnel Sign-C.S. 9 | " | Each | 2 | 1.00 | 2 |
| 22 | ..........Total | $168,389.80 | ||||
| 23 | ..........Interest during construction | $9,230.25 | ||||
| 24 | ..........Final | $177,629.95 | ||||