The pedestrian bridge over Interstate 25 that connects the Highland area with Lower Downtown came in more than $1.5 million over budget.
The extra expense will cost Denver an additional $912,000, nearly 120 percent of the $765,429 the city expected to pay, city engineer Leslie Thomas said.
Public works officials said the price of construction materials, such as concrete and iron, went up more than expected because of Hurricane Katrina and caused most of the overrun.
In all, construction costs for the bridge went over budget by more than 50 percent, from $3.1 million to nearly $4.7 million.
But the tab for the bridge is spread among several agencies, including a $1.8 million grant from the federal government, $800,000 from the Regional Transportation District and more than $378,000 from the state, Department of Public Works spokeswoman Revekka Balancier said.
