Page:Final Report - The Columbia River Interstate Bridge.pdf/14

 {| Engineers presented and Commission adopted plans and speciﬁcations for Derby Street approach embankment.
 * January||11, 1915,||Engineers presented ﬁnal detailed plans and speciﬁcations.
 * January||11, 1915,||Commission adopted plans and speciﬁca— tions and ordered work advertised.
 * February||23, 1915,||Commission received bids for all principal construction work.
 * February||27, 1915,||Commission awarded contracts for principal construction work.
 * March||6, 1915,||Actual construction formally started.
 * February||23, 1915,||Commission received bids for all principal construction work.
 * February||27, 1915,||Commission awarded contracts for principal construction work.
 * March||6, 1915,||Actual construction formally started.
 * March||6, 1915,||Actual construction formally started.
 * March||6, 1915,||Actual construction formally started.

Commission received bids for Derby Street approach embankment.

Commission awarded contract Derby Street approach embankment.

Final approval of plans given by Secretary of War.

Engineers presented and Commission adopted plans and speciﬁcations for pavement of approach embankments.

Commission received bids for pavement of approach embankments.

Commission awarded contract for pavement of approach embankments.

Commission awarded contract making purchase of materials for lighting system.

Commission awarded contract for constructing lighting system.

Bridge formally opened to trailic.

Engineers rendered ﬁnal estimate for last contract.
 * }