Bangor Diverging Diamond Interchange Project Updates

September 2026

In September, concrete work for Abutment #1 was finished up, subsurface geotechnical work (rock socketed piles) continued at Pier 1, 2, and 3. More subsurface geotechnical work (driven H Piles) were completed at Abutment #2.  Lightweight Fill has begun at Abutment #2 and the lower half of Ramp B was built up to its new grade.

Bangor Diverging Diamond Project September 2026
Bangor Diverging Diamond Project September 2026
Bangor Diverging Diamond Project September 2026
Bangor Diverging Diamond Project September 2026
Bangor Diverging Diamond Project September 2026

August 2026

In August, crews worked on the bridge abutment and pier construction, I-95 southbound ramp improvements and paving, Haskell Road reverse direction loop construction and paving and electrical conduit installation.

Bangor Diverging Diamond Project August 2026
Bangor Diverging Diamond Project August 2026
Bangor Diverging Diamond Project August 2026
Bangor Diverging Diamond Project August 2026

July 2026

In July, crews made significant progress at all three piers and both abutments. Work activities included driving pile, preparing rebar and formwork for concrete, and then placing concrete. 

Bangor DDI July 17, 2026
Bangor DDI July 17, 2026 Work
Bangor DDI July 24, 2026
Bangor DDI July 24, 2026 Work

June 2026

In June, crews began drilling holes to prepare rock-socketed piles at Piers 2 and 3, then installed and grouted the piles at Pier 3. A crane, vibratory hammer, and diesel hammer were all delivered for Abutment 1, and crews began building frames for pile driving.

Bangor DDI June 12, 2026 Work
Bangor DDI June 12, 2026
Bangor DDI June 19, 2026 Work
Bangor DDI June 19, 2026

May 2026

In May, crews painted lines to mark out the gore area of Ramp C, installed traffic control items and a temporary barrier, and received delivery of rebar for Abutment 1. Finally, a power hookup was established at the field office trailer.

Bangor DDI May 22, 2026

April 2026

In April, crews prepared the project site by installing approach signs on both the northbound and southbound sides of I-95. The signs were then covered up to be used later.

News Releases

Press Release - April 15, 2026