The load factor for strength-level wind force = 1.0

ACI 318-14 (Eq. 5.3.1f)

ACI 318-14 (Table 22.2.2.4.3)

Assume the effective flexural depth (d) is approximately equal to 0.8l_w = 173 in.

ACI 318-14 (11.5.4.2)

c = 19.8 in. << d = 173 in. → Tension controlled section

ACI 318-14 (Table 21.2.2)