The City of Pittsburgh, in cooperation with the Federal Highway Administration (FHWA) and Pennsylvania Department of Transportation (PennDOT), is starting up the Larimer Avenue Bridge project. The purpose of this project is to improve the condition rating of the Poor condition bridge which connects the Larimer and Lincoln-Lemington-Belmar neighborhoods.

At the time it was built, in 1912, the Larimer Ave bridge over Washington Blvd (PA 8) was the second largest concrete arch in the world. The extent of concrete deterioration of the main span open-spandrel arches and poor condition of all structure elements indicates that major repairs or replacement is needed to keep the bridge functional. Today, the bridge is individually eligible for listing in the National Register of Historic Places (NRHP), so early in design it will undergo a comprehensive historic bridge rehabilitation analysis to determine if it can be rehabilitated or will need to be replaced. Due to the close proximity of the bridges, impacts to the adjacent structure at far approach which carries Larimer Ave. over A.V. RR is anticipated.


A photo and map image showing the location of Larimer bridge

Preliminary Design

While engineering will take several years, we aim to provide updates on the progress at various points throughout design. Your patience is appreciated as the design team kicks-off the project and gathers data.