Syrian military knew the US raid was coming and evacuated personnel and equipment: ABC News

[tazkcmo]

78. I saw it on CNN.

They showed the the airfield in operational status. Also, Tomahawks aren't designed to take our runways. There are specific systems for this:

https://en.wikipedia.org/wiki/Anti-runway_penetration_bomb

"One system available from 1977 diverging from the French/Israeli runway piercing bomb development used in 1967 was the Matra Durandal, a single 450 lb bomb with parachute braking, rocket booster, and two warheads. The device worked after being dropped by an aircraft flying at low level braking by parachute, then when at the correct angle firing a rocket to impact the runway, first igniting a large warhead to create a crater and then subsequently using a smaller charge that had penetrated the crater to displace adjacent concrete slabs. The slabs, once displaced, are far harder to deal with than a simple hole that could be patched with asphalt. The Durandal has been widely exported.[2][4]The Durandal was used by the USAF in the initial stages of the 1991 operation Desert Storm against Iraqi airfields, delivered by F-111s.[5]