Dartmouth Avenue Bridge Widening Project

The support structures for the bridge are almost done, and the girders will be put in place by late August or early September. After the girders are in, the bridge surface will be poured and the surrounding roads will be repaved.

The Dartmouth Bridge project has been delayed due to 3rd party construction delays related to the project. Currently, contractors are focused on finishing the substructure units on the south side of the bridge. Once this phase is complete, the installation of girders and the final stages involving the deck, sidewalk, and rail can proceed. Delays stemming from third-party utilities have extended the anticipated project completion date from summer 2024 to early winter of 2024.

Please be aware that the Dartmouth Bridge will be closed in both directions on Monday, July 1, from 8:30 a.m. to approximately 1 p.m. This closure is necessary for crews to paint traffic lines on the bridge. Plan your routes accordingly and thank you for your patience!

Dartmouth traffic has now been phased to the north side of the bridge while crews remove the deck on the south lane. While the deck is being removed crews will construct new piers and extensions to each abutment to accommodate three new girders on the south side which will widen the bridge by fifteen feet. After the new substructure units are constructed and girders are set, the final phase to the deck will be poured. Localized lane closures can be expected over the next couple months while Xcel transitions overhead powerlines to underground and crews work to replace sidewalks on all corners of the bridge.

Dartmouth Avenue will be closed in both directions for construction of the bridge on Thursday, October 19. New traffic patterns will be installed, and traffic will continue Friday using the northernmost lane for westbound traffic and the southernmost lane for eastbound traffic. This traffic pattern will be utilized throughout the weekend. On Monday, October 23, the westbound lane of traffic will be closed during the week for up to three weeks while crews install a utility bridge on the north side of Dartmouth Bridge. Demolition and construction will commence on the middle portion of the bridge while the utility bridge is being installed.

Dartmouth Bridge over the South Platte River just west of Santa Fe Drive will be closed for construction from August 18 to August 22. The contractor will be pouring new concrete on the north half of the deck. Traffic on the bridge vibrates the deck such that the concrete would not cure properly, so the bridge will be closed during the bridge deck pour, and for enough time to allow the concrete to cure properly.

Updates on this project will appear here.