Project Portfolio--Specialty Bridge Structures and Tunnels
11th STREET PEDESTRIAN TUNNEL UNDER COLUMBUS DRIVE
Chicago, Illinois
Project Team
• Owner:
City of Chicago—Mayor Richard Dailey
• Engineer:
H.W. Lochner—Chicago, Illinois
• Contractor:
Walsh Construction—Chicago, Illinois
Details
• Product:
3-Sided Structure
(Arched version no longer available through ECC)
• Installation Date:
2000
• Dimensions:
48’ Span x 13’ Rise x 130’ Long
Description
Located in front of the Field Museum in downtown Chicago, the goal for this project was to provide safe direct pedestrian access between the museums and Soldier Field (home of the Chicago Bears) to the east of Columbus Drive and the rest of downtown Chicago to the west. Designed on a slight slope, the end sections were vertically mitered. Embedded lighting and electrical conduit, along with precast architectural panels to line the interior space were also provided.
SOUTH LAKE SHORE DRIVE—ANIMAL BRIDGE
Chicago, Illinois
Project Team
• Owner:
City of Chicago
• Engineer:
CTE Engineers—Chicago, Illinois
• Contractor:
Walsh Construction Company—Chicago, Illinois
Details
• Product:
3-Sided Structure
(Arched version no longer available through ECC)
• Installation Date:
1998
• Other:
46’ Span x 11.41’ Rise x 105’ Long on 20’ Pedestal Walls
Description
After 99 years of service, the Animal Bridge on South Lake Shore Drive in Chicago, a very prominent and well-known historic structure, needed to be replaced. The intent was to restore its functionality without destroying its history by creating new bridging units and reapplying the original facia. The original arched shape, therefore, needed to be matched exactly which required a precise survey from which a custom form was made. The resulting bridge should be good to go for another century.
METROLINK TUNNEL
St. Louis, Missouri
Project Team
• Owner:
Cross County Metrolink—St. Louis, Missouri
• Engineer:
Cross County Collaborative—St. Louis, Missouri
• Contractor:
McCarthy Building Companies and Tarlton Corporation — Both of St. Louis, Missouri
Details
• Product:
3-Sided Structure
(Arched version no longer available through ECC)
• Installation Date:
2004
• Dimensions:
31.5’ Span x 10’10” Rise x 1.25+/- Miles Long on 10’3” to 15’3” Pedestal Walls
Description Located in an affluent area of St. Louis, Missouri near Clayton, the Metrolink mass transit system was installed underground to run beneath Forest Park Parkway and for aesthetic purposes.
680 Precast arch-shaped units were used to cover the underground portion of the corridor. The 26-ton precast barrel units were mitered and beveled to accommodate the vertical and horizontal curves.
McCarthy had very limited working area in the field, since the tunnel excavation was in a residential/commercial area. Often, the contractor chose to erect precast at night to allow uninterrupted field construction during the day. Several items were embedded in the precast, including stray current mitigation plates and Halfen anchors for emergency exhaust fans and electrical duct banks.
McKINLEY DRIVE BRIDGE IN FOREST PARK
St. Louis, Missouri
Project Team
• Owner:
City of St. Louis, Missouri
• Engineer:
AAIC Incorporated—St. Louis, Missouri
• Contractor:
RV Wagner, Inc.—St. Louis, Missouri
Details
• Product:
3-Sided Structure
(Arched version no longer available through ECC)
• Installation Date:
1997
• Other:
36’ Span x 10’ Rise x ~36’ Long
Description The McKinley Drive Bridge, located adjacent to the famous Muny Opera in St. Louis’ Forest Park, is a replica of an historic structure that was built prior to 1900. For this project, ECC supplied only the barrel units; the rest was formed on site. ECC built 4 other arched bridges, complete with headwalls and wingwalls, for the City of St. Louis in Forest Park.
