over Clarence Lane Roehampton for the Incorporated Froebel Educational Institute.
For short spans up to about 15m, simple beam bridges may be most economical. Over longer spans, 10m to 20m composite steel/concrete construction may be best.
where maximum water or other clearance is needed.
BELIZE, CENTRAL AMERICA
Rio Bravo Bridge. Over truss where the need for future sideways expansion may be important.