Cost to move onto a river hex that has an engineer unit in it.

[Matt W]

"A unit may not exceed its movement allowance in any action segment unless it moves only one hex." from the beginning of section 5.0 (Movement).

PG, like most games, has the rule that a unit may always move one hex. Thus the M28 can enter the river hex.

Normal means the normal terrain cost for a river hex from the TEC. In cases where normal exceeds the movement allowance the unit may move into the hex from an adjacent hex due to the rule quoted above.