APPENDIX A.

TABLE 0F QUANTITIES.

Length of Bridge from centre to centre of tower, 821 feet, 4 inches.

Length of Floor between towers, 800 feet.

Number of Wire Cables, 4.

Diameter of each cable, 10 inches.

Solid Wire Section of each Cable, 60 40 square inches.

Aggregate Section of each of the four Cables, 241 60 square inches.

Aggregate Section of Anchor chains, lowest links, 276 00 square inches.

Aggregate Section of Anchor chains, upper links, 372 00 square inches.

Ultimate strength of Chains, 11,904 tons.

Aggregate number of Wires in Cables, 14,560 tons.

Average strength of one Wire, 1,648 lbs.

Ultimate strength of four Cables, 12,000 tons.

Permanent weight supported by Cables, 1,000 tons.

Tension resulting, 1,810 tons.

Length of Anchor Chains, 66 feet.

Length of upper Cables, 1,261 feet.

Length of lower Cables, 1,193 feet.

Deflections of upper Cables at medium temperature, 54 feet.

Deflections of lower Cables at medium temperature, 64 feet.

Average deflection, 59 feet.

Number of Suspenders, 624.

Aggregate ultimate strength of Suspenders, 18,720 tons.

Number of Over-floor Stays, 64.

Aggregate strength, 1,920 tons.

Number of River Stays, 56.

Aggregate strength, 1,680 tons.

Elevation of Railway track above middle stage of river, 245 feet.