On January 15, 2000 the boom of a mobile crane transported on a barge named T.L. Sharpe, towed by the Sea Cap XII, struck the underside of the Knight Street Bridge at 1:45 PM, damaging the bridge and the fixtures secured underneath its deck.
The impact caused the boom to bend and the crane to slide off the barge and sink, and the bridge was closed to traffic for about 48 hours.
Water supply to Mitchell Island via the bridge was shut down for 25 days, and an emergency bypass water supply from Vancouver was installed.
The incident prompted the City of Richmond to install a second water main to Mitchell Island in 2002.

In 2011, the bridge underwent a seismic retrofit of three abutments, which were vulnerable to settlement or collapse from movements during soil liquefaction.
The subsurface conditions comprise dense till-like soils for the north bridge, but potentially liquefiable deltaic sediments for the south bridge.
The north abutments and piers rest upon spread footings, whereas the south ones rest upon timber and steel-pipe piles.
To densify the ground, 105 injection boreholes were drilled to a depth of 12.3 metres (40 ft) around one abutment, and filled at pressure with a low mobility grout up to the surface.
Timber compaction piles were used for densification in other areas.
Steel-pipe piles were installed at a pier adjacent to the riverbank.

Ranking first in Vancouver, the bridge was the scene of more than 2,500 car accidents during 2013–2017, of which nearly half resulted in injuries or fatalities.
The Marine Dr. on and off ramps have rated among Canada's most dangerous intersections.
In 2017, the city made design and signalling changes to enhance safety, which included a new turn bay for westbound vehicles on SE Marine Dr. turning north, and a new shared walking and cycling path.

During early 2020, the bridge underwent extensive rehabilitation that required overnight single lane closures in each direction.
The work included lighting upgrades, pier repairs, and the replacement of crash cushions, signage, and bearing and expansion joints.
On January 15, 2000 the boom of a mobile crane transported on a barge named T.L. Sharpe, towed by the Sea Cap XII, struck the underside of the Knight Street Bridge at 1:45 PM, damaging the bridge and the fixtures secured underneath its deck. The impact caused the boom to bend and the crane to slide off the barge and sink, and the bridge was closed to traffic for about 48 hours. Water supply to Mitchell Island via the bridge was shut down for 25 days, and an emergency bypass water supply from Vancouver was installed. The incident prompted the City of Richmond to install a second water main to Mitchell Island in 2002.
In 2011, the bridge underwent a seismic retrofit of three abutments, which were vulnerable to settlement or collapse from movements during soil liquefaction. The subsurface conditions comprise dense till-like soils for the north bridge, but potentially liquefiable deltaic sediments for the south bridge. The north abutments and piers rest upon spread footings, whereas the south ones rest upon timber and steel-pipe piles. To densify the ground, 105 injection boreholes were drilled to a depth of 12.3 metres (40 ft) around one abutment, and filled at pressure with a low mobility grout up to the surface. Timber compaction piles were used for densification in other areas. Steel-pipe piles were installed at a pier adjacent to the riverbank.
Ranking first in Vancouver, the bridge was the scene of more than 2,500 car accidents during 2013–2017, of which nearly half resulted in injuries or fatalities. The Marine Dr. on and off ramps have rated among Canada's most dangerous intersections. In 2017, the city made design and signalling changes to enhance safety, which included a new turn bay for westbound vehicles on SE Marine Dr. turning north, and a new shared walking and cycling path.
During early 2020, the bridge underwent extensive rehabilitation that required overnight single lane closures in each direction. The work included lighting upgrades, pier repairs, and the replacement of crash cushions, signage, and bearing and expansion joints.
Knight Street Bridge